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-rw-r--r--Documentation/ABI/testing/sysfs-class-mtd17
-rw-r--r--Documentation/DocBook/mtdnand.tmpl2
-rw-r--r--Documentation/devicetree/bindings/mtd/atmel-nand.txt28
-rw-r--r--Documentation/devicetree/bindings/mtd/fsmc-nand.txt25
-rw-r--r--Documentation/devicetree/bindings/mtd/partition.txt1
-rw-r--r--arch/avr32/mach-at32ap/at32ap700x.c3
-rw-r--r--arch/mips/bcm63xx/nvram.c11
-rw-r--r--arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h2
-rw-r--r--drivers/mtd/bcm63xxpart.c9
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0002.c4
-rw-r--r--drivers/mtd/chips/gen_probe.c4
-rw-r--r--drivers/mtd/chips/jedec_probe.c13
-rw-r--r--drivers/mtd/devices/Kconfig55
-rw-r--r--drivers/mtd/devices/bcm47xxsflash.c275
-rw-r--r--drivers/mtd/devices/bcm47xxsflash.h2
-rw-r--r--drivers/mtd/devices/block2mtd.c58
-rw-r--r--drivers/mtd/devices/elm.c129
-rw-r--r--drivers/mtd/devices/m25p80.c81
-rw-r--r--drivers/mtd/devices/mtd_dataflash.c10
-rw-r--r--drivers/mtd/devices/spear_smi.c19
-rw-r--r--drivers/mtd/devices/sst25l.c8
-rw-r--r--drivers/mtd/maps/Kconfig18
-rw-r--r--drivers/mtd/maps/Makefile2
-rw-r--r--drivers/mtd/maps/bfin-async-flash.c2
-rw-r--r--drivers/mtd/maps/cfi_flagadm.c10
-rw-r--r--drivers/mtd/maps/gpio-addr-flash.c2
-rw-r--r--drivers/mtd/maps/impa7.c10
-rw-r--r--drivers/mtd/maps/ixp4xx.c6
-rw-r--r--drivers/mtd/maps/latch-addr-flash.c5
-rw-r--r--drivers/mtd/maps/octagon-5066.c246
-rw-r--r--drivers/mtd/maps/physmap.c7
-rw-r--r--drivers/mtd/maps/plat-ram.c6
-rw-r--r--drivers/mtd/maps/pxa2xx-flash.c4
-rw-r--r--drivers/mtd/maps/rbtx4939-flash.c5
-rw-r--r--drivers/mtd/maps/sa1100-flash.c5
-rw-r--r--drivers/mtd/maps/vmax301.c196
-rw-r--r--drivers/mtd/mtdcore.c11
-rw-r--r--drivers/mtd/mtdpart.c1
-rw-r--r--drivers/mtd/mtdswap.c2
-rw-r--r--drivers/mtd/nand/Kconfig12
-rw-r--r--drivers/mtd/nand/Makefile1
-rw-r--r--drivers/mtd/nand/alauda.c723
-rw-r--r--drivers/mtd/nand/ams-delta.c1
-rw-r--r--drivers/mtd/nand/atmel_nand.c923
-rw-r--r--drivers/mtd/nand/atmel_nand_nfc.h98
-rw-r--r--drivers/mtd/nand/au1550nd.c2
-rw-r--r--drivers/mtd/nand/bf5xx_nand.c5
-rw-r--r--drivers/mtd/nand/cs553x_nand.c6
-rw-r--r--drivers/mtd/nand/davinci_nand.c19
-rw-r--r--drivers/mtd/nand/denali.c2
-rw-r--r--drivers/mtd/nand/diskonchip.c4
-rw-r--r--drivers/mtd/nand/docg4.c8
-rw-r--r--drivers/mtd/nand/fsl_ifc_nand.c3
-rw-r--r--drivers/mtd/nand/fsmc_nand.c38
-rw-r--r--drivers/mtd/nand/gpio.c231
-rw-r--r--drivers/mtd/nand/gpmi-nand/gpmi-nand.c268
-rw-r--r--drivers/mtd/nand/jz4740_nand.c6
-rw-r--r--drivers/mtd/nand/lpc32xx_mlc.c4
-rw-r--r--drivers/mtd/nand/lpc32xx_slc.c4
-rw-r--r--drivers/mtd/nand/mxc_nand.c12
-rw-r--r--drivers/mtd/nand/nand_base.c296
-rw-r--r--drivers/mtd/nand/nand_bbt.c194
-rw-r--r--drivers/mtd/nand/nand_ids.c8
-rw-r--r--drivers/mtd/nand/nandsim.c39
-rw-r--r--drivers/mtd/nand/nuc900_nand.c2
-rw-r--r--drivers/mtd/nand/omap2.c5
-rw-r--r--drivers/mtd/nand/orion_nand.c6
-rw-r--r--drivers/mtd/nand/plat_nand.c5
-rw-r--r--drivers/mtd/nand/pxa3xx_nand.c384
-rw-r--r--drivers/mtd/nand/r852.c49
-rw-r--r--drivers/mtd/nand/s3c2410.c4
-rw-r--r--drivers/mtd/nand/sh_flctl.c4
-rw-r--r--drivers/mtd/nand/sharpsl.c5
-rw-r--r--drivers/mtd/nand/sm_common.c9
-rw-r--r--drivers/mtd/nand/tmio_nand.c2
-rw-r--r--drivers/mtd/nand/txx9ndfmc.c13
-rw-r--r--drivers/mtd/ofpart.c18
-rw-r--r--drivers/mtd/onenand/generic.c4
-rw-r--r--drivers/mtd/onenand/omap2.c3
-rw-r--r--drivers/mtd/onenand/onenand_bbt.c1
-rw-r--r--drivers/mtd/onenand/samsung.c3
-rw-r--r--drivers/mtd/sm_ftl.c26
-rw-r--r--drivers/mtd/tests/Makefile9
-rw-r--r--drivers/mtd/tests/mtd_test.c114
-rw-r--r--drivers/mtd/tests/mtd_test.h11
-rw-r--r--drivers/mtd/tests/nandbiterrs.c (renamed from drivers/mtd/tests/mtd_nandbiterrs.c)41
-rw-r--r--drivers/mtd/tests/oobtest.c (renamed from drivers/mtd/tests/mtd_oobtest.c)102
-rw-r--r--drivers/mtd/tests/pagetest.c (renamed from drivers/mtd/tests/mtd_pagetest.c)271
-rw-r--r--drivers/mtd/tests/readtest.c (renamed from drivers/mtd/tests/mtd_readtest.c)61
-rw-r--r--drivers/mtd/tests/speedtest.c (renamed from drivers/mtd/tests/mtd_speedtest.c)210
-rw-r--r--drivers/mtd/tests/stresstest.c (renamed from drivers/mtd/tests/mtd_stresstest.c)101
-rw-r--r--drivers/mtd/tests/subpagetest.c (renamed from drivers/mtd/tests/mtd_subpagetest.c)97
-rw-r--r--drivers/mtd/tests/torturetest.c (renamed from drivers/mtd/tests/mtd_torturetest.c)66
-rw-r--r--include/linux/mtd/bbm.h2
-rw-r--r--include/linux/mtd/fsmc.h1
-rw-r--r--include/linux/mtd/mtd.h3
-rw-r--r--include/linux/mtd/nand.h83
-rw-r--r--include/linux/platform_data/atmel.h4
-rw-r--r--include/linux/platform_data/mtd-nand-pxa3xx.h13
99 files changed, 2732 insertions, 3201 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-mtd b/Documentation/ABI/testing/sysfs-class-mtd
index 3105644..bfd119a 100644
--- a/Documentation/ABI/testing/sysfs-class-mtd
+++ b/Documentation/ABI/testing/sysfs-class-mtd
@@ -128,9 +128,8 @@ KernelVersion: 3.4
Contact: linux-mtd@lists.infradead.org
Description:
Maximum number of bit errors that the device is capable of
- correcting within each region covering an ecc step. This will
- always be a non-negative integer. Note that some devices will
- have multiple ecc steps within each writesize region.
+ correcting within each region covering an ECC step (see
+ ecc_step_size). This will always be a non-negative integer.
In the case of devices lacking any ECC capability, it is 0.
@@ -173,3 +172,15 @@ Description:
This is generally applicable only to NAND flash devices with ECC
capability. It is ignored on devices lacking ECC capability;
i.e., devices for which ecc_strength is zero.
+
+What: /sys/class/mtd/mtdX/ecc_step_size
+Date: May 2013
+KernelVersion: 3.10
+Contact: linux-mtd@lists.infradead.org
+Description:
+ The size of a single region covered by ECC, known as the ECC
+ step. Devices may have several equally sized ECC steps within
+ each writesize region.
+
+ It will always be a non-negative integer. In the case of
+ devices lacking any ECC capability, it is 0.
diff --git a/Documentation/DocBook/mtdnand.tmpl b/Documentation/DocBook/mtdnand.tmpl
index fe122d6..a248f42 100644
--- a/Documentation/DocBook/mtdnand.tmpl
+++ b/Documentation/DocBook/mtdnand.tmpl
@@ -1224,8 +1224,6 @@ in this page</entry>
#define NAND_BBT_CREATE 0x00000200
/* Search good / bad pattern through all pages of a block */
#define NAND_BBT_SCANALLPAGES 0x00000400
-/* Scan block empty during good / bad block scan */
-#define NAND_BBT_SCANEMPTY 0x00000800
/* Write bbt if neccecary */
#define NAND_BBT_WRITE 0x00001000
/* Read and write back block contents when writing bbt */
diff --git a/Documentation/devicetree/bindings/mtd/atmel-nand.txt b/Documentation/devicetree/bindings/mtd/atmel-nand.txt
index d555421..c472883 100644
--- a/Documentation/devicetree/bindings/mtd/atmel-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/atmel-nand.txt
@@ -15,6 +15,7 @@ Required properties:
optional gpio and may be set to 0 if not present.
Optional properties:
+- atmel,nand-has-dma : boolean to support dma transfer for nand read/write.
- nand-ecc-mode : String, operation mode of the NAND ecc mode, soft by default.
Supported values are: "none", "soft", "hw", "hw_syndrome", "hw_oob_first",
"soft_bch".
@@ -29,6 +30,14 @@ Optional properties:
sector size 1024.
- nand-bus-width : 8 or 16 bus width if not present 8
- nand-on-flash-bbt: boolean to enable on flash bbt option if not present false
+- Nand Flash Controller(NFC) is a slave driver under Atmel nand flash
+ - Required properties:
+ - compatible : "atmel,sama5d3-nfc".
+ - reg : should specify the address and size used for NFC command registers,
+ NFC registers and NFC Sram. NFC Sram address and size can be absent
+ if don't want to use it.
+ - Optional properties:
+ - atmel,write-by-sram: boolean to enable NFC write by sram.
Examples:
nand0: nand@40000000,0 {
@@ -77,3 +86,22 @@ nand0: nand@40000000 {
...
};
};
+
+/* for NFC supported chips */
+nand0: nand@40000000 {
+ compatible = "atmel,at91rm9200-nand";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ ...
+ nfc@70000000 {
+ compatible = "atmel,sama5d3-nfc";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <
+ 0x70000000 0x10000000 /* NFC Command Registers */
+ 0xffffc000 0x00000070 /* NFC HSMC regs */
+ 0x00200000 0x00100000 /* NFC SRAM banks */
+ >;
+ };
+};
diff --git a/Documentation/devicetree/bindings/mtd/fsmc-nand.txt b/Documentation/devicetree/bindings/mtd/fsmc-nand.txt
index 2240ac0..ec42935 100644
--- a/Documentation/devicetree/bindings/mtd/fsmc-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/fsmc-nand.txt
@@ -1,4 +1,5 @@
-* FSMC NAND
+ST Microelectronics Flexible Static Memory Controller (FSMC)
+NAND Interface
Required properties:
- compatible : "st,spear600-fsmc-nand", "stericsson,fsmc-nand"
@@ -9,6 +10,26 @@ Optional properties:
- bank-width : Width (in bytes) of the device. If not present, the width
defaults to 1 byte
- nand-skip-bbtscan: Indicates the the BBT scanning should be skipped
+- timings: array of 6 bytes for NAND timings. The meanings of these bytes
+ are:
+ byte 0 TCLR : CLE to RE delay in number of AHB clock cycles, only 4 bits
+ are valid. Zero means one clockcycle, 15 means 16 clock
+ cycles.
+ byte 1 TAR : ALE to RE delay, 4 bits are valid. Same format as TCLR.
+ byte 2 THIZ : number of HCLK clock cycles during which the data bus is
+ kept in Hi-Z (tristate) after the start of a write access.
+ Only valid for write transactions. Zero means zero cycles,
+ 255 means 255 cycles.
+ byte 3 THOLD : number of HCLK clock cycles to hold the address (and data
+ when writing) after the command deassertation. Zero means
+ one cycle, 255 means 256 cycles.
+ byte 4 TWAIT : number of HCLK clock cycles to assert the command to the
+ NAND flash in response to SMWAITn. Zero means 1 cycle,
+ 255 means 256 cycles.
+ byte 5 TSET : number of HCLK clock cycles to assert the address before the
+ command is asserted. Zero means one cycle, 255 means 256
+ cycles.
+- bank: default NAND bank to use (0-3 are valid, 0 is the default).
Example:
@@ -24,6 +45,8 @@ Example:
bank-width = <1>;
nand-skip-bbtscan;
+ timings = /bits/ 8 <0 0 0 2 3 0>;
+ bank = <1>;
partition@0 {
...
diff --git a/Documentation/devicetree/bindings/mtd/partition.txt b/Documentation/devicetree/bindings/mtd/partition.txt
index 9315ac9..8e5557d 100644
--- a/Documentation/devicetree/bindings/mtd/partition.txt
+++ b/Documentation/devicetree/bindings/mtd/partition.txt
@@ -4,6 +4,7 @@ Partitions can be represented by sub-nodes of an mtd device. This can be used
on platforms which have strong conventions about which portions of a flash are
used for what purposes, but which don't use an on-flash partition table such
as RedBoot.
+NOTE: if the sub-node has a compatible string, then it is not a partition.
#address-cells & #size-cells must both be present in the mtd device. There are
two valid values for both:
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index 7f8759a..a68f3cf 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -1983,6 +1983,9 @@ at32_add_device_nand(unsigned int id, struct atmel_nand_data *data)
ARRAY_SIZE(smc_cs3_resource)))
goto fail;
+ /* For at32ap7000, we use the reset workaround for nand driver */
+ data->need_reset_workaround = true;
+
if (platform_device_add_data(pdev, data,
sizeof(struct atmel_nand_data)))
goto fail;
diff --git a/arch/mips/bcm63xx/nvram.c b/arch/mips/bcm63xx/nvram.c
index e652e57..4b50d40 100644
--- a/arch/mips/bcm63xx/nvram.c
+++ b/arch/mips/bcm63xx/nvram.c
@@ -35,6 +35,8 @@ struct bcm963xx_nvram {
u32 checksum_high;
};
+#define BCM63XX_DEFAULT_PSI_SIZE 64
+
static struct bcm963xx_nvram nvram;
static int mac_addr_used;
@@ -114,3 +116,12 @@ int bcm63xx_nvram_get_mac_address(u8 *mac)
return 0;
}
EXPORT_SYMBOL(bcm63xx_nvram_get_mac_address);
+
+int bcm63xx_nvram_get_psi_size(void)
+{
+ if (nvram.psi_size > 0)
+ return nvram.psi_size;
+
+ return BCM63XX_DEFAULT_PSI_SIZE;
+}
+EXPORT_SYMBOL(bcm63xx_nvram_get_psi_size);
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h
index 4e0b6bc..348df49 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h
@@ -30,4 +30,6 @@ u8 *bcm63xx_nvram_get_name(void);
*/
int bcm63xx_nvram_get_mac_address(u8 *mac);
+int bcm63xx_nvram_get_psi_size(void);
+
#endif /* BCM63XX_NVRAM_H */
diff --git a/drivers/mtd/bcm63xxpart.c b/drivers/mtd/bcm63xxpart.c
index 6eeb84c..5c81390 100644
--- a/drivers/mtd/bcm63xxpart.c
+++ b/drivers/mtd/bcm63xxpart.c
@@ -4,7 +4,7 @@
* Copyright © 2006-2008 Florian Fainelli <florian@openwrt.org>
* Mike Albon <malbon@openwrt.org>
* Copyright © 2009-2010 Daniel Dickinson <openwrt@cshore.neomailbox.net>
- * Copyright © 2011-2012 Jonas Gorski <jonas.gorski@gmail.com>
+ * Copyright © 2011-2013 Jonas Gorski <jonas.gorski@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -27,17 +27,19 @@
#include <linux/crc32.h>
#include <linux/module.h>
#include <linux/kernel.h>
+#include <linux/sizes.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
+#include <asm/mach-bcm63xx/bcm63xx_nvram.h>
#include <asm/mach-bcm63xx/bcm963xx_tag.h>
#include <asm/mach-bcm63xx/board_bcm963xx.h>
#define BCM63XX_EXTENDED_SIZE 0xBFC00000 /* Extended flash address */
-#define BCM63XX_CFE_BLOCK_SIZE 0x10000 /* always at least 64KiB */
+#define BCM63XX_CFE_BLOCK_SIZE SZ_64K /* always at least 64KiB */
#define BCM63XX_CFE_MAGIC_OFFSET 0x4e0
@@ -90,7 +92,8 @@ static int bcm63xx_parse_cfe_partitions(struct mtd_info *master,
BCM63XX_CFE_BLOCK_SIZE);
cfelen = cfe_erasesize;
- nvramlen = cfe_erasesize;
+ nvramlen = bcm63xx_nvram_get_psi_size() * SZ_1K;
+ nvramlen = roundup(nvramlen, cfe_erasesize);
/* Allocate memory for buffer */
buf = vmalloc(sizeof(struct bcm_tag));
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index fff665d..89b9d68 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -1571,8 +1571,8 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
xip_enable(map, chip, adr);
/* FIXME - should have reset delay before continuing */
- printk(KERN_WARNING "MTD %s(): software timeout\n",
- __func__ );
+ printk(KERN_WARNING "MTD %s(): software timeout, address:0x%.8lx.\n",
+ __func__, adr);
ret = -EIO;
op_done:
diff --git a/drivers/mtd/chips/gen_probe.c b/drivers/mtd/chips/gen_probe.c
index 74dbb6b..ffb36ba 100644
--- a/drivers/mtd/chips/gen_probe.c
+++ b/drivers/mtd/chips/gen_probe.c
@@ -211,9 +211,7 @@ static inline struct mtd_info *cfi_cmdset_unknown(struct map_info *map,
probe_function = __symbol_get(probename);
if (!probe_function) {
- char modname[sizeof("cfi_cmdset_%4.4X")];
- sprintf(modname, "cfi_cmdset_%4.4X", type);
- request_module(modname);
+ request_module("cfi_cmdset_%4.4X", type);
probe_function = __symbol_get(probename);
}
diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c
index c443f52..7c0b27d 100644
--- a/drivers/mtd/chips/jedec_probe.c
+++ b/drivers/mtd/chips/jedec_probe.c
@@ -120,7 +120,7 @@
#define PM49FL008 0x006A
/* Sharp */
-#define LH28F640BF 0x00b0
+#define LH28F640BF 0x00B0
/* ST - www.st.com */
#define M29F800AB 0x0058
@@ -1299,13 +1299,14 @@ static const struct amd_flash_info jedec_table[] = {
.mfr_id = CFI_MFR_SHARP,
.dev_id = LH28F640BF,
.name = "LH28F640BF",
- .devtypes = CFI_DEVICETYPE_X8,
+ .devtypes = CFI_DEVICETYPE_X16,
.uaddr = MTD_UADDR_UNNECESSARY,
- .dev_size = SIZE_4MiB,
- .cmd_set = P_ID_INTEL_STD,
- .nr_regions = 1,
+ .dev_size = SIZE_8MiB,
+ .cmd_set = P_ID_INTEL_EXT,
+ .nr_regions = 2,
.regions = {
- ERASEINFO(0x40000,16),
+ ERASEINFO(0x10000, 127),
+ ERASEINFO(0x02000, 8),
}
}, {
.mfr_id = CFI_MFR_SST,
diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig
index 2a4d55e..74ab4b7 100644
--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
@@ -224,59 +224,4 @@ config BCH_CONST_T
default 4
endif
-config MTD_DOCPROBE
- tristate
- select MTD_DOCECC
-
-config MTD_DOCECC
- tristate
-
-config MTD_DOCPROBE_ADVANCED
- bool "Advanced detection options for DiskOnChip"
- depends on MTD_DOCPROBE
- help
- This option allows you to specify nonstandard address at which to
- probe for a DiskOnChip, or to change the detection options. You
- are unlikely to need any of this unless you are using LinuxBIOS.
- Say 'N'.
-
-config MTD_DOCPROBE_ADDRESS
- hex "Physical address of DiskOnChip" if MTD_DOCPROBE_ADVANCED
- depends on MTD_DOCPROBE
- default "0x0"
- ---help---
- By default, the probe for DiskOnChip devices will look for a
- DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
- This option allows you to specify a single address at which to probe
- for the device, which is useful if you have other devices in that
- range which get upset when they are probed.
-
- (Note that on PowerPC, the normal probe will only check at
- 0xE4000000.)
-
- Normally, you should leave this set to zero, to allow the probe at
- the normal addresses.
-
-config MTD_DOCPROBE_HIGH
- bool "Probe high addresses"
- depends on MTD_DOCPROBE_ADVANCED
- help
- By default, the probe for DiskOnChip devices will look for a
- DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
- This option changes to make it probe between 0xFFFC8000 and
- 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
- useful to you. Say 'N'.
-
-config MTD_DOCPROBE_55AA
- bool "Probe for 0x55 0xAA BIOS Extension Signature"
- depends on MTD_DOCPROBE_ADVANCED
- help
- Check for the 0x55 0xAA signature of a DiskOnChip, and do not
- continue with probing if it is absent. The signature will always be
- present for a DiskOnChip 2000 or a normal DiskOnChip Millennium.
- Only if you have overwritten the first block of a DiskOnChip
- Millennium will it be absent. Enable this option if you are using
- LinuxBIOS or if you need to recover a DiskOnChip Millennium on which
- you have managed to wipe the first block.
-
endmenu
diff --git a/drivers/mtd/devices/bcm47xxsflash.c b/drivers/mtd/devices/bcm47xxsflash.c
index 18e7761..77de29b 100644
--- a/drivers/mtd/devices/bcm47xxsflash.c
+++ b/drivers/mtd/devices/bcm47xxsflash.c
@@ -1,6 +1,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/delay.h>
#include <linux/mtd/mtd.h>
#include <linux/platform_device.h>
#include <linux/bcma/bcma.h>
@@ -12,6 +13,93 @@ MODULE_DESCRIPTION("Serial flash driver for BCMA bus");
static const char * const probes[] = { "bcm47xxpart", NULL };
+/**************************************************
+ * Various helpers
+ **************************************************/
+
+static void bcm47xxsflash_cmd(struct bcm47xxsflash *b47s, u32 opcode)
+{
+ int i;
+
+ b47s->cc_write(b47s, BCMA_CC_FLASHCTL, BCMA_CC_FLASHCTL_START | opcode);
+ for (i = 0; i < 1000; i++) {
+ if (!(b47s->cc_read(b47s, BCMA_CC_FLASHCTL) &
+ BCMA_CC_FLASHCTL_BUSY))
+ return;
+ cpu_relax();
+ }
+ pr_err("Control command failed (timeout)!\n");
+}
+
+static int bcm47xxsflash_poll(struct bcm47xxsflash *b47s, int timeout)
+{
+ unsigned long deadline = jiffies + timeout;
+
+ do {
+ switch (b47s->type) {
+ case BCM47XXSFLASH_TYPE_ST:
+ bcm47xxsflash_cmd(b47s, OPCODE_ST_RDSR);
+ if (!(b47s->cc_read(b47s, BCMA_CC_FLASHDATA) &
+ SR_ST_WIP))
+ return 0;
+ break;
+ case BCM47XXSFLASH_TYPE_ATMEL:
+ bcm47xxsflash_cmd(b47s, OPCODE_AT_STATUS);
+ if (b47s->cc_read(b47s, BCMA_CC_FLASHDATA) &
+ SR_AT_READY)
+ return 0;
+ break;
+ }
+
+ cpu_relax();
+ udelay(1);
+ } while (!time_after_eq(jiffies, deadline));
+
+ pr_err("Timeout waiting for flash to be ready!\n");
+
+ return -EBUSY;
+}
+
+/**************************************************
+ * MTD ops
+ **************************************************/
+
+static int bcm47xxsflash_erase(struct mtd_info *mtd, struct erase_info *erase)
+{
+ struct bcm47xxsflash *b47s = mtd->priv;
+ int err;
+
+ switch (b47s->type) {
+ case BCM47XXSFLASH_TYPE_ST:
+ bcm47xxsflash_cmd(b47s, OPCODE_ST_WREN);
+ b47s->cc_write(b47s, BCMA_CC_FLASHADDR, erase->addr);
+ /* Newer flashes have "sub-sectors" which can be erased
+ * independently with a new command: ST_SSE. The ST_SE command
+ * erases 64KB just as before.
+ */
+ if (b47s->blocksize < (64 * 1024))
+ bcm47xxsflash_cmd(b47s, OPCODE_ST_SSE);
+ else
+ bcm47xxsflash_cmd(b47s, OPCODE_ST_SE);
+ break;
+ case BCM47XXSFLASH_TYPE_ATMEL:
+ b47s->cc_write(b47s, BCMA_CC_FLASHADDR, erase->addr << 1);
+ bcm47xxsflash_cmd(b47s, OPCODE_AT_PAGE_ERASE);
+ break;
+ }
+
+ err = bcm47xxsflash_poll(b47s, HZ);
+ if (err)
+ erase->state = MTD_ERASE_FAILED;
+ else
+ erase->state = MTD_ERASE_DONE;
+
+ if (erase->callback)
+ erase->callback(erase);
+
+ return err;
+}
+
static int bcm47xxsflash_read(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, u_char *buf)
{
@@ -28,6 +116,127 @@ static int bcm47xxsflash_read(struct mtd_info *mtd, loff_t from, size_t len,
return len;
}
+static int bcm47xxsflash_write_st(struct mtd_info *mtd, u32 offset, size_t len,
+ const u_char *buf)
+{
+ struct bcm47xxsflash *b47s = mtd->priv;
+ int written = 0;
+
+ /* Enable writes */
+ bcm47xxsflash_cmd(b47s, OPCODE_ST_WREN);
+
+ /* Write first byte */
+ b47s->cc_write(b47s, BCMA_CC_FLASHADDR, offset);
+ b47s->cc_write(b47s, BCMA_CC_FLASHDATA, *buf++);
+
+ /* Program page */
+ if (b47s->bcma_cc->core->id.rev < 20) {
+ bcm47xxsflash_cmd(b47s, OPCODE_ST_PP);
+ return 1; /* 1B written */
+ }
+
+ /* Program page and set CSA (on newer chips we can continue writing) */
+ bcm47xxsflash_cmd(b47s, OPCODE_ST_CSA | OPCODE_ST_PP);
+ offset++;
+ len--;
+ written++;
+
+ while (len > 0) {
+ /* Page boundary, another function call is needed */
+ if ((offset & 0xFF) == 0)
+ break;
+
+ bcm47xxsflash_cmd(b47s, OPCODE_ST_CSA | *buf++);
+ offset++;
+ len--;
+ written++;
+ }
+
+ /* All done, drop CSA & poll */
+ b47s->cc_write(b47s, BCMA_CC_FLASHCTL, 0);
+ udelay(1);
+ if (bcm47xxsflash_poll(b47s, HZ / 10))
+ pr_err("Flash rejected dropping CSA\n");
+
+ return written;
+}
+
+static int bcm47xxsflash_write_at(struct mtd_info *mtd, u32 offset, size_t len,
+ const u_char *buf)
+{
+ struct bcm47xxsflash *b47s = mtd->priv;
+ u32 mask = b47s->blocksize - 1;
+ u32 page = (offset & ~mask) << 1;
+ u32 byte = offset & mask;
+ int written = 0;
+
+ /* If we don't overwrite whole page, read it to the buffer first */
+ if (byte || (len < b47s->blocksize)) {
+ int err;
+
+ b47s->cc_write(b47s, BCMA_CC_FLASHADDR, page);
+ bcm47xxsflash_cmd(b47s, OPCODE_AT_BUF1_LOAD);
+ /* 250 us for AT45DB321B */
+ err = bcm47xxsflash_poll(b47s, HZ / 1000);
+ if (err) {
+ pr_err("Timeout reading page 0x%X info buffer\n", page);
+ return err;
+ }
+ }
+
+ /* Change buffer content with our data */
+ while (len > 0) {
+ /* Page boundary, another function call is needed */
+ if (byte == b47s->blocksize)
+ break;
+
+ b47s->cc_write(b47s, BCMA_CC_FLASHADDR, byte++);
+ b47s->cc_write(b47s, BCMA_CC_FLASHDATA, *buf++);
+ bcm47xxsflash_cmd(b47s, OPCODE_AT_BUF1_WRITE);
+ len--;
+ written++;
+ }
+
+ /* Program page with the buffer content */
+ b47s->cc_write(b47s, BCMA_CC_FLASHADDR, page);
+ bcm47xxsflash_cmd(b47s, OPCODE_AT_BUF1_PROGRAM);
+
+ return written;
+}
+
+static int bcm47xxsflash_write(struct mtd_info *mtd, loff_t to, size_t len,
+ size_t *retlen, const u_char *buf)
+{
+ struct bcm47xxsflash *b47s = mtd->priv;
+ int written;
+
+ /* Writing functions can return without writing all passed data, for
+ * example when the hardware is too old or when we git page boundary.
+ */
+ while (len > 0) {
+ switch (b47s->type) {
+ case BCM47XXSFLASH_TYPE_ST:
+ written = bcm47xxsflash_write_st(mtd, to, len, buf);
+ break;
+ case BCM47XXSFLASH_TYPE_ATMEL:
+ written = bcm47xxsflash_write_at(mtd, to, len, buf);
+ break;
+ default:
+ BUG_ON(1);
+ }
+ if (written < 0) {
+ pr_err("Error writing at offset 0x%llX\n", to);
+ return written;
+ }
+ to += (loff_t)written;
+ len -= written;
+ *retlen += written;
+ buf += written;
+ }
+
+ return 0;
+}
+
static void bcm47xxsflash_fill_mtd(struct bcm47xxsflash *b47s)
{
struct mtd_info *mtd = &b47s->mtd;
@@ -35,33 +244,48 @@ static void bcm47xxsflash_fill_mtd(struct bcm47xxsflash *b47s)
mtd->priv = b47s;
mtd->name = "bcm47xxsflash";
mtd->owner = THIS_MODULE;
- mtd->type = MTD_ROM;
+
+ mtd->type = MTD_NORFLASH;
+ mtd->flags = MTD_CAP_NORFLASH;
mtd->size = b47s->size;
- mtd->_read = bcm47xxsflash_read;
+ mtd->erasesize = b47s->blocksize;
+ mtd->writesize = 1;
+ mtd->writebufsize = 1;
- /* TODO: implement writing support and verify/change following code */
- mtd->flags = MTD_CAP_ROM;
- mtd->writebufsize = mtd->writesize = 1;
+ mtd->_erase = bcm47xxsflash_erase;
+ mtd->_read = bcm47xxsflash_read;
+ mtd->_write = bcm47xxsflash_write;
}
/**************************************************
* BCMA
**************************************************/
+static int bcm47xxsflash_bcma_cc_read(struct bcm47xxsflash *b47s, u16 offset)
+{
+ return bcma_cc_read32(b47s->bcma_cc, offset);
+}
+
+static void bcm47xxsflash_bcma_cc_write(struct bcm47xxsflash *b47s, u16 offset,
+ u32 value)
+{
+ bcma_cc_write32(b47s->bcma_cc, offset, value);
+}
+
static int bcm47xxsflash_bcma_probe(struct platform_device *pdev)
{
struct bcma_sflash *sflash = dev_get_platdata(&pdev->dev);
struct bcm47xxsflash *b47s;
int err;
- b47s = kzalloc(sizeof(*b47s), GFP_KERNEL);
- if (!b47s) {
- err = -ENOMEM;
- goto out;
- }
+ b47s = devm_kzalloc(&pdev->dev, sizeof(*b47s), GFP_KERNEL);
+ if (!b47s)
+ return -ENOMEM;
sflash->priv = b47s;
b47s->bcma_cc = container_of(sflash, struct bcma_drv_cc, sflash);
+ b47s->cc_read = bcm47xxsflash_bcma_cc_read;
+ b47s->cc_write = bcm47xxsflash_bcma_cc_write;
switch (b47s->bcma_cc->capabilities & BCMA_CC_CAP_FLASHT) {
case BCMA_CC_FLASHT_STSER:
@@ -81,15 +305,13 @@ static int bcm47xxsflash_bcma_probe(struct platform_device *pdev)
err = mtd_device_parse_register(&b47s->mtd, probes, NULL, NULL, 0);
if (err) {
pr_err("Failed to register MTD device: %d\n", err);
- goto err_dev_reg;
+ return err;
}
- return 0;
+ if (bcm47xxsflash_poll(b47s, HZ / 10))
+ pr_warn("Serial flash busy\n");
-err_dev_reg:
- kfree(&b47s->mtd);
-out:
- return err;
+ return 0;
}
static int bcm47xxsflash_bcma_remove(struct platform_device *pdev)
@@ -98,7 +320,6 @@ static int bcm47xxsflash_bcma_remove(struct platform_device *pdev)
struct bcm47xxsflash *b47s = sflash->priv;
mtd_device_unregister(&b47s->mtd);
- kfree(b47s);
return 0;
}
@@ -116,22 +337,4 @@ static struct platform_driver bcma_sflash_driver = {
* Init
**************************************************/
-static int __init bcm47xxsflash_init(void)
-{
- int err;
-
- err = platform_driver_register(&bcma_sflash_driver);
- if (err)
- pr_err("Failed to register BCMA serial flash driver: %d\n",
- err);
-
- return err;
-}
-
-static void __exit bcm47xxsflash_exit(void)
-{
- platform_driver_unregister(&bcma_sflash_driver);
-}
-
-module_init(bcm47xxsflash_init);
-module_exit(bcm47xxsflash_exit);
+module_platform_driver(bcma_sflash_driver);
diff --git a/drivers/mtd/devices/bcm47xxsflash.h b/drivers/mtd/devices/bcm47xxsflash.h
index f22f8c4..fe93daf 100644
--- a/drivers/mtd/devices/bcm47xxsflash.h
+++ b/drivers/mtd/devices/bcm47xxsflash.h
@@ -60,6 +60,8 @@ enum bcm47xxsflash_type {
struct bcm47xxsflash {
struct bcma_drv_cc *bcma_cc;
+ int (*cc_read)(struct bcm47xxsflash *b47s, u16 offset);
+ void (*cc_write)(struct bcm47xxsflash *b47s, u16 offset, u32 value);
enum bcm47xxsflash_type type;
diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c
index e081bfe..5cb4c04 100644
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -6,6 +6,9 @@
*
* Licence: GPL
*/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/blkdev.h>
@@ -18,10 +21,6 @@
#include <linux/mount.h>
#include <linux/slab.h>
-#define ERROR(fmt, args...) printk(KERN_ERR "block2mtd: " fmt "\n" , ## args)
-#define INFO(fmt, args...) printk(KERN_INFO "block2mtd: " fmt "\n" , ## args)
-
-
/* Info for the block device */
struct block2mtd_dev {
struct list_head list;
@@ -84,7 +83,7 @@ static int block2mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
err = _block2mtd_erase(dev, from, len);
mutex_unlock(&dev->write_mutex);
if (err) {
- ERROR("erase failed err = %d", err);
+ pr_err("erase failed err = %d\n", err);
instr->state = MTD_ERASE_FAILED;
} else
instr->state = MTD_ERASE_DONE;
@@ -239,13 +238,13 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size)
#endif
if (IS_ERR(bdev)) {
- ERROR("error: cannot open device %s", devname);
+ pr_err("error: cannot open device %s\n", devname);
goto devinit_err;
}
dev->blkdev = bdev;
if (MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) {
- ERROR("attempting to use an MTD device as a block device");
+ pr_err("attempting to use an MTD device as a block device\n");
goto devinit_err;
}
@@ -277,9 +276,10 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size)
goto devinit_err;
}
list_add(&dev->list, &blkmtd_device_list);
- INFO("mtd%d: [%s] erase_size = %dKiB [%d]", dev->mtd.index,
- dev->mtd.name + strlen("block2mtd: "),
- dev->mtd.erasesize >> 10, dev->mtd.erasesize);
+ pr_info("mtd%d: [%s] erase_size = %dKiB [%d]\n",
+ dev->mtd.index,
+ dev->mtd.name + strlen("block2mtd: "),
+ dev->mtd.erasesize >> 10, dev->mtd.erasesize);
return dev;
devinit_err:
@@ -339,17 +339,11 @@ static inline void kill_final_newline(char *str)
}
-#define parse_err(fmt, args...) do { \
- ERROR(fmt, ## args); \
- return 0; \
-} while (0)
-
#ifndef MODULE
static int block2mtd_init_called = 0;
static char block2mtd_paramline[80 + 12]; /* 80 for device, 12 for erase size */
#endif
-
static int block2mtd_setup2(const char *val)
{
char buf[80 + 12]; /* 80 for device, 12 for erase size */
@@ -359,8 +353,10 @@ static int block2mtd_setup2(const char *val)
size_t erase_size = PAGE_SIZE;
int i, ret;
- if (strnlen(val, sizeof(buf)) >= sizeof(buf))
- parse_err("parameter too long");
+ if (strnlen(val, sizeof(buf)) >= sizeof(buf)) {
+ pr_err("parameter too long\n");
+ return 0;
+ }
strcpy(str, val);
kill_final_newline(str);
@@ -368,20 +364,27 @@ static int block2mtd_setup2(const char *val)
for (i = 0; i < 2; i++)
token[i] = strsep(&str, ",");
- if (str)
- parse_err("too many arguments");
+ if (str) {
+ pr_err("too many arguments\n");
+ return 0;
+ }
- if (!token[0])
- parse_err("no argument");
+ if (!token[0]) {
+ pr_err("no argument\n");
+ return 0;
+ }
name = token[0];
- if (strlen(name) + 1 > 80)
- parse_err("device name too long");
+ if (strlen(name) + 1 > 80) {
+ pr_err("device name too long\n");
+ return 0;
+ }
if (token[1]) {
ret = parse_num(&erase_size, token[1]);
if (ret) {
- parse_err("illegal erase size");
+ pr_err("illegal erase size\n");
+ return 0;
}
}
@@ -444,8 +447,9 @@ static void block2mtd_exit(void)
struct block2mtd_dev *dev = list_entry(pos, typeof(*dev), list);
block2mtd_sync(&dev->mtd);
mtd_device_unregister(&dev->mtd);
- INFO("mtd%d: [%s] removed", dev->mtd.index,
- dev->mtd.name + strlen("block2mtd: "));
+ pr_info("mtd%d: [%s] removed\n",
+ dev->mtd.index,
+ dev->mtd.name + strlen("block2mtd: "));
list_del(&dev->list);
block2mtd_free_device(dev);
}
diff --git a/drivers/mtd/devices/elm.c b/drivers/mtd/devices/elm.c
index dccef9f..d1dd6a3 100644
--- a/drivers/mtd/devices/elm.c
+++ b/drivers/mtd/devices/elm.c
@@ -20,14 +20,21 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/of.h>
+#include <linux/sched.h>
#include <linux/pm_runtime.h>
#include <linux/platform_data/elm.h>
+#define ELM_SYSCONFIG 0x010
#define ELM_IRQSTATUS 0x018
#define ELM_IRQENABLE 0x01c
#define ELM_LOCATION_CONFIG 0x020
#define ELM_PAGE_CTRL 0x080
#define ELM_SYNDROME_FRAGMENT_0 0x400
+#define ELM_SYNDROME_FRAGMENT_1 0x404
+#define ELM_SYNDROME_FRAGMENT_2 0x408
+#define ELM_SYNDROME_FRAGMENT_3 0x40c
+#define ELM_SYNDROME_FRAGMENT_4 0x410
+#define ELM_SYNDROME_FRAGMENT_5 0x414
#define ELM_SYNDROME_FRAGMENT_6 0x418
#define ELM_LOCATION_STATUS 0x800
#define ELM_ERROR_LOCATION_0 0x880
@@ -56,12 +63,27 @@
#define SYNDROME_FRAGMENT_REG_SIZE 0x40
#define ERROR_LOCATION_SIZE 0x100
+struct elm_registers {
+ u32 elm_irqenable;
+ u32 elm_sysconfig;
+ u32 elm_location_config;
+ u32 elm_page_ctrl;
+ u32 elm_syndrome_fragment_6[ERROR_VECTOR_MAX];
+ u32 elm_syndrome_fragment_5[ERROR_VECTOR_MAX];
+ u32 elm_syndrome_fragment_4[ERROR_VECTOR_MAX];
+ u32 elm_syndrome_fragment_3[ERROR_VECTOR_MAX];
+ u32 elm_syndrome_fragment_2[ERROR_VECTOR_MAX];
+ u32 elm_syndrome_fragment_1[ERROR_VECTOR_MAX];
+ u32 elm_syndrome_fragment_0[ERROR_VECTOR_MAX];
+};
+
struct elm_info {
struct device *dev;
void __iomem *elm_base;
struct completion elm_completion;
struct list_head list;
enum bch_ecc bch_type;
+ struct elm_registers elm_regs;
};
static LIST_HEAD(elm_devices);
@@ -346,14 +368,9 @@ static int elm_probe(struct platform_device *pdev)
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "no memory resource defined\n");
- return -ENODEV;
- }
-
- info->elm_base = devm_request_and_ioremap(&pdev->dev, res);
- if (!info->elm_base)
- return -EADDRNOTAVAIL;
+ info->elm_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(info->elm_base))
+ return PTR_ERR(info->elm_base);
ret = devm_request_irq(&pdev->dev, irq->start, elm_isr, 0,
pdev->name, info);
@@ -381,10 +398,103 @@ static int elm_remove(struct platform_device *pdev)
{
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
- platform_set_drvdata(pdev, NULL);
return 0;
}
+/**
+ * elm_context_save
+ * saves ELM configurations to preserve them across Hardware powered-down
+ */
+static int elm_context_save(struct elm_info *info)
+{
+ struct elm_registers *regs = &info->elm_regs;
+ enum bch_ecc bch_type = info->bch_type;
+ u32 offset = 0, i;
+
+ regs->elm_irqenable = elm_read_reg(info, ELM_IRQENABLE);
+ regs->elm_sysconfig = elm_read_reg(info, ELM_SYSCONFIG);
+ regs->elm_location_config = elm_read_reg(info, ELM_LOCATION_CONFIG);
+ regs->elm_page_ctrl = elm_read_reg(info, ELM_PAGE_CTRL);
+ for (i = 0; i < ERROR_VECTOR_MAX; i++) {
+ offset = i * SYNDROME_FRAGMENT_REG_SIZE;
+ switch (bch_type) {
+ case BCH8_ECC:
+ regs->elm_syndrome_fragment_3[i] = elm_read_reg(info,
+ ELM_SYNDROME_FRAGMENT_3 + offset);
+ regs->elm_syndrome_fragment_2[i] = elm_read_reg(info,
+ ELM_SYNDROME_FRAGMENT_2 + offset);
+ case BCH4_ECC:
+ regs->elm_syndrome_fragment_1[i] = elm_read_reg(info,
+ ELM_SYNDROME_FRAGMENT_1 + offset);
+ regs->elm_syndrome_fragment_0[i] = elm_read_reg(info,
+ ELM_SYNDROME_FRAGMENT_0 + offset);
+ default:
+ return -EINVAL;
+ }
+ /* ELM SYNDROME_VALID bit in SYNDROME_FRAGMENT_6[] needs
+ * to be saved for all BCH schemes*/
+ regs->elm_syndrome_fragment_6[i] = elm_read_reg(info,
+ ELM_SYNDROME_FRAGMENT_6 + offset);
+ }
+ return 0;
+}
+
+/**
+ * elm_context_restore
+ * writes configurations saved duing power-down back into ELM registers
+ */
+static int elm_context_restore(struct elm_info *info)
+{
+ struct elm_registers *regs = &info->elm_regs;
+ enum bch_ecc bch_type = info->bch_type;
+ u32 offset = 0, i;
+
+ elm_write_reg(info, ELM_IRQENABLE, regs->elm_irqenable);
+ elm_write_reg(info, ELM_SYSCONFIG, regs->elm_sysconfig);
+ elm_write_reg(info, ELM_LOCATION_CONFIG, regs->elm_location_config);
+ elm_write_reg(info, ELM_PAGE_CTRL, regs->elm_page_ctrl);
+ for (i = 0; i < ERROR_VECTOR_MAX; i++) {
+ offset = i * SYNDROME_FRAGMENT_REG_SIZE;
+ switch (bch_type) {
+ case BCH8_ECC:
+ elm_write_reg(info, ELM_SYNDROME_FRAGMENT_3 + offset,
+ regs->elm_syndrome_fragment_3[i]);
+ elm_write_reg(info, ELM_SYNDROME_FRAGMENT_2 + offset,
+ regs->elm_syndrome_fragment_2[i]);
+ case BCH4_ECC:
+ elm_write_reg(info, ELM_SYNDROME_FRAGMENT_1 + offset,
+ regs->elm_syndrome_fragment_1[i]);
+ elm_write_reg(info, ELM_SYNDROME_FRAGMENT_0 + offset,
+ regs->elm_syndrome_fragment_0[i]);
+ default:
+ return -EINVAL;
+ }
+ /* ELM_SYNDROME_VALID bit to be set in last to trigger FSM */
+ elm_write_reg(info, ELM_SYNDROME_FRAGMENT_6 + offset,
+ regs->elm_syndrome_fragment_6[i] &
+ ELM_SYNDROME_VALID);
+ }
+ return 0;
+}
+
+static int elm_suspend(struct device *dev)
+{
+ struct elm_info *info = dev_get_drvdata(dev);
+ elm_context_save(info);
+ pm_runtime_put_sync(dev);
+ return 0;
+}
+
+static int elm_resume(struct device *dev)
+{
+ struct elm_info *info = dev_get_drvdata(dev);
+ pm_runtime_get_sync(dev);
+ elm_context_restore(info);
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(elm_pm_ops, elm_suspend, elm_resume);
+
#ifdef CONFIG_OF
static const struct of_device_id elm_of_match[] = {
{ .compatible = "ti,am3352-elm" },
@@ -398,6 +508,7 @@ static struct platform_driver elm_driver = {
.name = "elm",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(elm_of_match),
+ .pm = &elm_pm_ops,
},
.probe = elm_probe,
.remove = elm_remove,
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 2f3d2a5..26b14f9 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -43,17 +43,24 @@
#define OPCODE_FAST_READ 0x0b /* Read data bytes (high frequency) */
#define OPCODE_PP 0x02 /* Page program (up to 256 bytes) */
#define OPCODE_BE_4K 0x20 /* Erase 4KiB block */
+#define OPCODE_BE_4K_PMC 0xd7 /* Erase 4KiB block on PMC chips */
#define OPCODE_BE_32K 0x52 /* Erase 32KiB block */
#define OPCODE_CHIP_ERASE 0xc7 /* Erase whole flash chip */
#define OPCODE_SE 0xd8 /* Sector erase (usually 64KiB) */
#define OPCODE_RDID 0x9f /* Read JEDEC ID */
+/* 4-byte address opcodes - used on Spansion and some Macronix flashes. */
+#define OPCODE_NORM_READ_4B 0x13 /* Read data bytes (low frequency) */
+#define OPCODE_FAST_READ_4B 0x0c /* Read data bytes (high frequency) */
+#define OPCODE_PP_4B 0x12 /* Page program (up to 256 bytes) */
+#define OPCODE_SE_4B 0xdc /* Sector erase (usually 64KiB) */
+
/* Used for SST flashes only. */
#define OPCODE_BP 0x02 /* Byte program */
#define OPCODE_WRDI 0x04 /* Write disable */
#define OPCODE_AAI_WP 0xad /* Auto address increment word program */
-/* Used for Macronix flashes only. */
+/* Used for Macronix and Winbond flashes. */
#define OPCODE_EN4B 0xb7 /* Enter 4-byte mode */
#define OPCODE_EX4B 0xe9 /* Exit 4-byte mode */
@@ -84,6 +91,8 @@ struct m25p {
u16 page_size;
u16 addr_width;
u8 erase_opcode;
+ u8 read_opcode;
+ u8 program_opcode;
u8 *command;
bool fast_read;
};
@@ -161,6 +170,7 @@ static inline int set_4byte(struct m25p *flash, u32 jedec_id, int enable)
{
switch (JEDEC_MFR(jedec_id)) {
case CFI_MFR_MACRONIX:
+ case CFI_MFR_ST: /* Micron, actually */
case 0xEF /* winbond */:
flash->command[0] = enable ? OPCODE_EN4B : OPCODE_EX4B;
return spi_write(flash->spi, flash->command, 1);
@@ -371,7 +381,7 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len,
*/
/* Set up the write data buffer. */
- opcode = flash->fast_read ? OPCODE_FAST_READ : OPCODE_NORM_READ;
+ opcode = flash->read_opcode;
flash->command[0] = opcode;
m25p_addr2cmd(flash, from, flash->command);
@@ -422,7 +432,7 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,
write_enable(flash);
/* Set up the opcode in the write buffer. */
- flash->command[0] = OPCODE_PP;
+ flash->command[0] = flash->program_opcode;
m25p_addr2cmd(flash, to, flash->command);
page_offset = to & (flash->page_size - 1);
@@ -682,6 +692,8 @@ struct flash_info {
#define SECT_4K 0x01 /* OPCODE_BE_4K works uniformly */
#define M25P_NO_ERASE 0x02 /* No erase command needed */
#define SST_WRITE 0x04 /* use SST byte programming */
+#define M25P_NO_FR 0x08 /* Can't do fastread */
+#define SECT_4K_PMC 0x10 /* OPCODE_BE_4K_PMC works uniformly */
};
#define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags) \
@@ -694,13 +706,13 @@ struct flash_info {
.flags = (_flags), \
})
-#define CAT25_INFO(_sector_size, _n_sectors, _page_size, _addr_width) \
+#define CAT25_INFO(_sector_size, _n_sectors, _page_size, _addr_width, _flags) \
((kernel_ulong_t)&(struct flash_info) { \
.sector_size = (_sector_size), \
.n_sectors = (_n_sectors), \
.page_size = (_page_size), \
.addr_width = (_addr_width), \
- .flags = M25P_NO_ERASE, \
+ .flags = (_flags), \
})
/* NOTE: double check command sets and memory organization when you add
@@ -732,7 +744,8 @@ static const struct spi_device_id m25p_ids[] = {
{ "en25qh256", INFO(0x1c7019, 0, 64 * 1024, 512, 0) },
/* Everspin */
- { "mr25h256", CAT25_INFO( 32 * 1024, 1, 256, 2) },
+ { "mr25h256", CAT25_INFO( 32 * 1024, 1, 256, 2, M25P_NO_ERASE | M25P_NO_FR) },
+ { "mr25h10", CAT25_INFO(128 * 1024, 1, 256, 3, M25P_NO_ERASE | M25P_NO_FR) },
/* GigaDevice */
{ "gd25q32", INFO(0xc84016, 0, 64 * 1024, 64, SECT_4K) },
@@ -762,6 +775,11 @@ static const struct spi_device_id m25p_ids[] = {
{ "n25q128a13", INFO(0x20ba18, 0, 64 * 1024, 256, 0) },
{ "n25q256a", INFO(0x20ba19, 0, 64 * 1024, 512, SECT_4K) },
+ /* PMC */
+ { "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K_PMC) },
+ { "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_4K_PMC) },
+ { "pm25lq032", INFO(0x7f9d46, 0, 64 * 1024, 64, SECT_4K) },
+
/* Spansion -- single (large) sector size only, at least
* for the chips listed here (without boot sectors).
*/
@@ -840,17 +858,18 @@ static const struct spi_device_id m25p_ids[] = {
{ "w25q32dw", INFO(0xef6016, 0, 64 * 1024, 64, SECT_4K) },
{ "w25x64", INFO(0xef3017, 0, 64 * 1024, 128, SECT_4K) },
{ "w25q64", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) },
+ { "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) },
{ "w25q80", INFO(0xef5014, 0, 64 * 1024, 16, SECT_4K) },
{ "w25q80bl", INFO(0xef4014, 0, 64 * 1024, 16, SECT_4K) },
{ "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) },
{ "w25q256", INFO(0xef4019, 0, 64 * 1024, 512, SECT_4K) },
/* Catalyst / On Semiconductor -- non-JEDEC */
- { "cat25c11", CAT25_INFO( 16, 8, 16, 1) },
- { "cat25c03", CAT25_INFO( 32, 8, 16, 2) },
- { "cat25c09", CAT25_INFO( 128, 8, 32, 2) },
- { "cat25c17", CAT25_INFO( 256, 8, 32, 2) },
- { "cat25128", CAT25_INFO(2048, 8, 64, 2) },
+ { "cat25c11", CAT25_INFO( 16, 8, 16, 1, M25P_NO_ERASE | M25P_NO_FR) },
+ { "cat25c03", CAT25_INFO( 32, 8, 16, 2, M25P_NO_ERASE | M25P_NO_FR) },
+ { "cat25c09", CAT25_INFO( 128, 8, 32, 2, M25P_NO_ERASE | M25P_NO_FR) },
+ { "cat25c17", CAT25_INFO( 256, 8, 32, 2, M25P_NO_ERASE | M25P_NO_FR) },
+ { "cat25128", CAT25_INFO(2048, 8, 64, 2, M25P_NO_ERASE | M25P_NO_FR) },
{ },
};
MODULE_DEVICE_TABLE(spi, m25p_ids);
@@ -920,7 +939,7 @@ static int m25p_probe(struct spi_device *spi)
* a chip ID, try the JEDEC id commands; they'll work for most
* newer chips, even if we don't recognize the particular chip.
*/
- data = spi->dev.platform_data;
+ data = dev_get_platdata(&spi->dev);
if (data && data->type) {
const struct spi_device_id *plat_id;
@@ -972,7 +991,7 @@ static int m25p_probe(struct spi_device *spi)
flash->spi = spi;
mutex_init(&flash->lock);
- dev_set_drvdata(&spi->dev, flash);
+ spi_set_drvdata(spi, flash);
/*
* Atmel, SST and Intel/Numonyx serial flash tend to power
@@ -1014,6 +1033,9 @@ static int m25p_probe(struct spi_device *spi)
if (info->flags & SECT_4K) {
flash->erase_opcode = OPCODE_BE_4K;
flash->mtd.erasesize = 4096;
+ } else if (info->flags & SECT_4K_PMC) {
+ flash->erase_opcode = OPCODE_BE_4K_PMC;
+ flash->mtd.erasesize = 4096;
} else {
flash->erase_opcode = OPCODE_SE;
flash->mtd.erasesize = info->sector_size;
@@ -1028,24 +1050,41 @@ static int m25p_probe(struct spi_device *spi)
flash->mtd.writebufsize = flash->page_size;
flash->fast_read = false;
-#ifdef CONFIG_OF
if (np && of_property_read_bool(np, "m25p,fast-read"))
flash->fast_read = true;
-#endif
#ifdef CONFIG_M25PXX_USE_FAST_READ
flash->fast_read = true;
#endif
+ if (info->flags & M25P_NO_FR)
+ flash->fast_read = false;
+
+ /* Default commands */
+ if (flash->fast_read)
+ flash->read_opcode = OPCODE_FAST_READ;
+ else
+ flash->read_opcode = OPCODE_NORM_READ;
+
+ flash->program_opcode = OPCODE_PP;
if (info->addr_width)
flash->addr_width = info->addr_width;
- else {
+ else if (flash->mtd.size > 0x1000000) {
/* enable 4-byte addressing if the device exceeds 16MiB */
- if (flash->mtd.size > 0x1000000) {
- flash->addr_width = 4;
- set_4byte(flash, info->jedec_id, 1);
+ flash->addr_width = 4;
+ if (JEDEC_MFR(info->jedec_id) == CFI_MFR_AMD) {
+ /* Dedicated 4-byte command set */
+ flash->read_opcode = flash->fast_read ?
+ OPCODE_FAST_READ_4B :
+ OPCODE_NORM_READ_4B;
+ flash->program_opcode = OPCODE_PP_4B;
+ /* No small sector erase for 4-byte command set */
+ flash->erase_opcode = OPCODE_SE_4B;
+ flash->mtd.erasesize = info->sector_size;
} else
- flash->addr_width = 3;
+ set_4byte(flash, info->jedec_id, 1);
+ } else {
+ flash->addr_width = 3;
}
dev_info(&spi->dev, "%s (%lld Kbytes)\n", id->name,
@@ -1080,7 +1119,7 @@ static int m25p_probe(struct spi_device *spi)
static int m25p_remove(struct spi_device *spi)
{
- struct m25p *flash = dev_get_drvdata(&spi->dev);
+ struct m25p *flash = spi_get_drvdata(spi);
int status;
/* Clean up MTD stuff. */
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index 28779b6..0e8cbfe 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -622,7 +622,7 @@ static int add_dataflash_otp(struct spi_device *spi, char *name, int nr_pages,
struct dataflash *priv;
struct mtd_info *device;
struct mtd_part_parser_data ppdata;
- struct flash_platform_data *pdata = spi->dev.platform_data;
+ struct flash_platform_data *pdata = dev_get_platdata(&spi->dev);
char *otp_tag = "";
int err = 0;
@@ -661,7 +661,7 @@ static int add_dataflash_otp(struct spi_device *spi, char *name, int nr_pages,
dev_info(&spi->dev, "%s (%lld KBytes) pagesize %d bytes%s\n",
name, (long long)((device->size + 1023) >> 10),
pagesize, otp_tag);
- dev_set_drvdata(&spi->dev, priv);
+ spi_set_drvdata(spi, priv);
ppdata.of_node = spi->dev.of_node;
err = mtd_device_parse_register(device, NULL, &ppdata,
@@ -671,7 +671,7 @@ static int add_dataflash_otp(struct spi_device *spi, char *name, int nr_pages,
if (!err)
return 0;
- dev_set_drvdata(&spi->dev, NULL);
+ spi_set_drvdata(spi, NULL);
kfree(priv);
return err;
}
@@ -895,14 +895,14 @@ static int dataflash_probe(struct spi_device *spi)
static int dataflash_remove(struct spi_device *spi)
{
- struct dataflash *flash = dev_get_drvdata(&spi->dev);
+ struct dataflash *flash = spi_get_drvdata(spi);
int status;
pr_debug("%s: remove\n", dev_name(&spi->dev));
status = mtd_device_unregister(&flash->mtd);
if (status == 0) {
- dev_set_drvdata(&spi->dev, NULL);
+ spi_set_drvdata(spi, NULL);
kfree(flash);
}
return status;
diff --git a/drivers/mtd/devices/spear_smi.c b/drivers/mtd/devices/spear_smi.c
index 8a82b8b..4238214 100644
--- a/drivers/mtd/devices/spear_smi.c
+++ b/drivers/mtd/devices/spear_smi.c
@@ -550,7 +550,7 @@ static int spear_mtd_read(struct mtd_info *mtd, loff_t from, size_t len,
{
struct spear_snor_flash *flash = get_flash_data(mtd);
struct spear_smi *dev = mtd->priv;
- void *src;
+ void __iomem *src;
u32 ctrlreg1, val;
int ret;
@@ -583,7 +583,7 @@ static int spear_mtd_read(struct mtd_info *mtd, loff_t from, size_t len,
writel(val, dev->io_base + SMI_CR1);
- memcpy_fromio(buf, (u8 *)src, len);
+ memcpy_fromio(buf, src, len);
/* restore ctrl reg1 */
writel(ctrlreg1, dev->io_base + SMI_CR1);
@@ -596,7 +596,7 @@ static int spear_mtd_read(struct mtd_info *mtd, loff_t from, size_t len,
}
static inline int spear_smi_cpy_toio(struct spear_smi *dev, u32 bank,
- void *dest, const void *src, size_t len)
+ void __iomem *dest, const void *src, size_t len)
{
int ret;
u32 ctrlreg1;
@@ -643,7 +643,7 @@ static int spear_mtd_write(struct mtd_info *mtd, loff_t to, size_t len,
{
struct spear_snor_flash *flash = get_flash_data(mtd);
struct spear_smi *dev = mtd->priv;
- void *dest;
+ void __iomem *dest;
u32 page_offset, page_size;
int ret;
@@ -995,14 +995,12 @@ static int spear_smi_probe(struct platform_device *pdev)
ret = spear_smi_setup_banks(pdev, i, pdata->np[i]);
if (ret) {
dev_err(&dev->pdev->dev, "bank setup failed\n");
- goto err_bank_setup;
+ goto err_irq;
}
}
return 0;
-err_bank_setup:
- platform_set_drvdata(pdev, NULL);
err_irq:
clk_disable_unprepare(dev->clk);
err:
@@ -1040,12 +1038,11 @@ static int spear_smi_remove(struct platform_device *pdev)
}
clk_disable_unprepare(dev->clk);
- platform_set_drvdata(pdev, NULL);
return 0;
}
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int spear_smi_suspend(struct device *dev)
{
struct spear_smi *sdev = dev_get_drvdata(dev);
@@ -1068,9 +1065,9 @@ static int spear_smi_resume(struct device *dev)
spear_smi_hw_init(sdev);
return ret;
}
+#endif
static SIMPLE_DEV_PM_OPS(spear_smi_pm_ops, spear_smi_suspend, spear_smi_resume);
-#endif
#ifdef CONFIG_OF
static const struct of_device_id spear_smi_id_table[] = {
@@ -1086,9 +1083,7 @@ static struct platform_driver spear_smi_driver = {
.bus = &platform_bus_type,
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(spear_smi_id_table),
-#ifdef CONFIG_PM
.pm = &spear_smi_pm_ops,
-#endif
},
.probe = spear_smi_probe,
.remove = spear_smi_remove,
diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c
index 8091b01..a42f1f0 100644
--- a/drivers/mtd/devices/sst25l.c
+++ b/drivers/mtd/devices/sst25l.c
@@ -370,9 +370,9 @@ static int sst25l_probe(struct spi_device *spi)
flash->spi = spi;
mutex_init(&flash->lock);
- dev_set_drvdata(&spi->dev, flash);
+ spi_set_drvdata(spi, flash);
- data = spi->dev.platform_data;
+ data = dev_get_platdata(&spi->dev);
if (data && data->name)
flash->mtd.name = data->name;
else
@@ -404,7 +404,7 @@ static int sst25l_probe(struct spi_device *spi)
data ? data->nr_parts : 0);
if (ret) {
kfree(flash);
- dev_set_drvdata(&spi->dev, NULL);
+ spi_set_drvdata(spi, NULL);
return -ENODEV;
}
@@ -413,7 +413,7 @@ static int sst25l_probe(struct spi_device *spi)
static int sst25l_remove(struct spi_device *spi)
{
- struct sst25l_flash *flash = dev_get_drvdata(&spi->dev);
+ struct sst25l_flash *flash = spi_get_drvdata(spi);
int ret;
ret = mtd_device_unregister(&flash->mtd);
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 8b27ca0..310dc7c 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -157,24 +157,6 @@ config MTD_PXA2XX
help
This provides a driver for the NOR flash attached to a PXA2xx chip.
-config MTD_OCTAGON
- tristate "JEDEC Flash device mapped on Octagon 5066 SBC"
- depends on X86 && MTD_JEDEC && MTD_COMPLEX_MAPPINGS
- help
- This provides a 'mapping' driver which supports the way in which
- the flash chips are connected in the Octagon-5066 Single Board
- Computer. More information on the board is available at
- <http://www.octagonsystems.com/products/5066.aspx>.
-
-config MTD_VMAX
- tristate "JEDEC Flash device mapped on Tempustech VMAX SBC301"
- depends on X86 && MTD_JEDEC && MTD_COMPLEX_MAPPINGS
- help
- This provides a 'mapping' driver which supports the way in which
- the flash chips are connected in the Tempustech VMAX SBC301 Single
- Board Computer. More information on the board is available at
- <http://www.tempustech.com/>.
-
config MTD_SCx200_DOCFLASH
tristate "Flash device mapped with DOCCS on NatSemi SCx200"
depends on SCx200 && MTD_CFI
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 9fdbd4b..141c91a 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -16,7 +16,6 @@ obj-$(CONFIG_MTD_ICHXROM) += ichxrom.o
obj-$(CONFIG_MTD_CK804XROM) += ck804xrom.o
obj-$(CONFIG_MTD_TSUNAMI) += tsunami_flash.o
obj-$(CONFIG_MTD_PXA2XX) += pxa2xx-flash.o
-obj-$(CONFIG_MTD_OCTAGON) += octagon-5066.o
obj-$(CONFIG_MTD_PHYSMAP) += physmap.o
obj-$(CONFIG_MTD_PHYSMAP_OF) += physmap_of.o
obj-$(CONFIG_MTD_PISMO) += pismo.o
@@ -28,7 +27,6 @@ obj-$(CONFIG_MTD_SC520CDP) += sc520cdp.o
obj-$(CONFIG_MTD_NETSC520) += netsc520.o
obj-$(CONFIG_MTD_TS5500) += ts5500_flash.o
obj-$(CONFIG_MTD_SUN_UFLASH) += sun_uflash.o
-obj-$(CONFIG_MTD_VMAX) += vmax301.o
obj-$(CONFIG_MTD_SCx200_DOCFLASH)+= scx200_docflash.o
obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o
obj-$(CONFIG_MTD_PCI) += pci.o
diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c
index 319b04a..5434d8d 100644
--- a/drivers/mtd/maps/bfin-async-flash.c
+++ b/drivers/mtd/maps/bfin-async-flash.c
@@ -128,7 +128,7 @@ static const char * const part_probe_types[] = {
static int bfin_flash_probe(struct platform_device *pdev)
{
int ret;
- struct physmap_flash_data *pdata = pdev->dev.platform_data;
+ struct physmap_flash_data *pdata = dev_get_platdata(&pdev->dev);
struct resource *memory = platform_get_resource(pdev, IORESOURCE_MEM, 0);
struct resource *flash_ambctl = platform_get_resource(pdev, IORESOURCE_MEM, 1);
struct async_state *state;
diff --git a/drivers/mtd/maps/cfi_flagadm.c b/drivers/mtd/maps/cfi_flagadm.c
index d16fc9d..d504b3d 100644
--- a/drivers/mtd/maps/cfi_flagadm.c
+++ b/drivers/mtd/maps/cfi_flagadm.c
@@ -55,13 +55,13 @@
#define FLASH_PARTITION3_SIZE 0x001C0000
-struct map_info flagadm_map = {
+static struct map_info flagadm_map = {
.name = "FlagaDM flash device",
.size = FLASH_SIZE,
.bankwidth = 2,
};
-struct mtd_partition flagadm_parts[] = {
+static struct mtd_partition flagadm_parts[] = {
{
.name = "Bootloader",
.offset = FLASH_PARTITION0_ADDR,
@@ -112,7 +112,7 @@ static int __init init_flagadm(void)
return 0;
}
- iounmap((void *)flagadm_map.virt);
+ iounmap((void __iomem *)flagadm_map.virt);
return -ENXIO;
}
@@ -123,8 +123,8 @@ static void __exit cleanup_flagadm(void)
map_destroy(mymtd);
}
if (flagadm_map.virt) {
- iounmap((void *)flagadm_map.virt);
- flagadm_map.virt = 0;
+ iounmap((void __iomem *)flagadm_map.virt);
+ flagadm_map.virt = NULL;
}
}
diff --git a/drivers/mtd/maps/gpio-addr-flash.c b/drivers/mtd/maps/gpio-addr-flash.c
index 5ede282..1adba86 100644
--- a/drivers/mtd/maps/gpio-addr-flash.c
+++ b/drivers/mtd/maps/gpio-addr-flash.c
@@ -196,7 +196,7 @@ static int gpio_flash_probe(struct platform_device *pdev)
struct resource *gpios;
struct async_state *state;
- pdata = pdev->dev.platform_data;
+ pdata = dev_get_platdata(&pdev->dev);
memory = platform_get_resource(pdev, IORESOURCE_MEM, 0);
gpios = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
diff --git a/drivers/mtd/maps/impa7.c b/drivers/mtd/maps/impa7.c
index 4968674..15bbda0 100644
--- a/drivers/mtd/maps/impa7.c
+++ b/drivers/mtd/maps/impa7.c
@@ -79,7 +79,7 @@ static int __init init_impa7(void)
}
simple_map_init(&impa7_map[i]);
- impa7_mtd[i] = 0;
+ impa7_mtd[i] = NULL;
type = rom_probe_types;
for(; !impa7_mtd[i] && *type; type++) {
impa7_mtd[i] = do_map_probe(*type, &impa7_map[i]);
@@ -91,9 +91,9 @@ static int __init init_impa7(void)
mtd_device_parse_register(impa7_mtd[i], NULL, NULL,
partitions,
ARRAY_SIZE(partitions));
+ } else {
+ iounmap((void __iomem *)impa7_map[i].virt);
}
- else
- iounmap((void *)impa7_map[i].virt);
}
return devicesfound == 0 ? -ENXIO : 0;
}
@@ -105,8 +105,8 @@ static void __exit cleanup_impa7(void)
if (impa7_mtd[i]) {
mtd_device_unregister(impa7_mtd[i]);
map_destroy(impa7_mtd[i]);
- iounmap((void *)impa7_map[i].virt);
- impa7_map[i].virt = 0;
+ iounmap((void __iomem *)impa7_map[i].virt);
+ impa7_map[i].virt = NULL;
}
}
}
diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c
index 52b3410..10debfe 100644
--- a/drivers/mtd/maps/ixp4xx.c
+++ b/drivers/mtd/maps/ixp4xx.c
@@ -152,11 +152,9 @@ static const char * const probes[] = { "RedBoot", "cmdlinepart", NULL };
static int ixp4xx_flash_remove(struct platform_device *dev)
{
- struct flash_platform_data *plat = dev->dev.platform_data;
+ struct flash_platform_data *plat = dev_get_platdata(&dev->dev);
struct ixp4xx_flash_info *info = platform_get_drvdata(dev);
- platform_set_drvdata(dev, NULL);
-
if(!info)
return 0;
@@ -180,7 +178,7 @@ static int ixp4xx_flash_remove(struct platform_device *dev)
static int ixp4xx_flash_probe(struct platform_device *dev)
{
- struct flash_platform_data *plat = dev->dev.platform_data;
+ struct flash_platform_data *plat = dev_get_platdata(&dev->dev);
struct ixp4xx_flash_info *info;
struct mtd_part_parser_data ppdata = {
.origin = dev->resource->start,
diff --git a/drivers/mtd/maps/latch-addr-flash.c b/drivers/mtd/maps/latch-addr-flash.c
index ab0fead..98bb5d5 100644
--- a/drivers/mtd/maps/latch-addr-flash.c
+++ b/drivers/mtd/maps/latch-addr-flash.c
@@ -102,9 +102,8 @@ static int latch_addr_flash_remove(struct platform_device *dev)
info = platform_get_drvdata(dev);
if (info == NULL)
return 0;
- platform_set_drvdata(dev, NULL);
- latch_addr_data = dev->dev.platform_data;
+ latch_addr_data = dev_get_platdata(&dev->dev);
if (info->mtd != NULL) {
mtd_device_unregister(info->mtd);
@@ -135,7 +134,7 @@ static int latch_addr_flash_probe(struct platform_device *dev)
int chipsel;
int err;
- latch_addr_data = dev->dev.platform_data;
+ latch_addr_data = dev_get_platdata(&dev->dev);
if (latch_addr_data == NULL)
return -ENODEV;
diff --git a/drivers/mtd/maps/octagon-5066.c b/drivers/mtd/maps/octagon-5066.c
deleted file mode 100644
index 807ac2a..0000000
--- a/drivers/mtd/maps/octagon-5066.c
+++ /dev/null
@@ -1,246 +0,0 @@
-/* ######################################################################
-
- Octagon 5066 MTD Driver.
-
- The Octagon 5066 is a SBC based on AMD's 586-WB running at 133 MHZ. It
- comes with a builtin AMD 29F016 flash chip and a socketed EEPROM that
- is replacable by flash. Both units are mapped through a multiplexer
- into a 32k memory window at 0xe8000. The control register for the
- multiplexing unit is located at IO 0x208 with a bit map of
- 0-5 Page Selection in 32k increments
- 6-7 Device selection:
- 00 SSD off
- 01 SSD 0 (Socket)
- 10 SSD 1 (Flash chip)
- 11 undefined
-
- On each SSD, the first 128k is reserved for use by the bios
- (actually it IS the bios..) This only matters if you are booting off the
- flash, you must not put a file system starting there.
-
- The driver tries to do a detection algorithm to guess what sort of devices
- are plugged into the sockets.
-
- ##################################################################### */
-
-#include <linux/module.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <asm/io.h>
-
-#include <linux/mtd/map.h>
-#include <linux/mtd/mtd.h>
-
-#define WINDOW_START 0xe8000
-#define WINDOW_LENGTH 0x8000
-#define WINDOW_SHIFT 27
-#define WINDOW_MASK 0x7FFF
-#define PAGE_IO 0x208
-
-static volatile char page_n_dev = 0;
-static unsigned long iomapadr;
-static DEFINE_SPINLOCK(oct5066_spin);
-
-/*
- * We use map_priv_1 to identify which device we are.
- */
-
-static void __oct5066_page(struct map_info *map, __u8 byte)
-{
- outb(byte,PAGE_IO);
- page_n_dev = byte;
-}
-
-static inline void oct5066_page(struct map_info *map, unsigned long ofs)
-{
- __u8 byte = map->map_priv_1 | (ofs >> WINDOW_SHIFT);
-
- if (page_n_dev != byte)
- __oct5066_page(map, byte);
-}
-
-
-static map_word oct5066_read8(struct map_info *map, unsigned long ofs)
-{
- map_word ret;
- spin_lock(&oct5066_spin);
- oct5066_page(map, ofs);
- ret.x[0] = readb(iomapadr + (ofs & WINDOW_MASK));
- spin_unlock(&oct5066_spin);
- return ret;
-}
-
-static void oct5066_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
-{
- while(len) {
- unsigned long thislen = len;
- if (len > (WINDOW_LENGTH - (from & WINDOW_MASK)))
- thislen = WINDOW_LENGTH-(from & WINDOW_MASK);
-
- spin_lock(&oct5066_spin);
- oct5066_page(map, from);
- memcpy_fromio(to, iomapadr + from, thislen);
- spin_unlock(&oct5066_spin);
- to += thislen;
- from += thislen;
- len -= thislen;
- }
-}
-
-static void oct5066_write8(struct map_info *map, map_word d, unsigned long adr)
-{
- spin_lock(&oct5066_spin);
- oct5066_page(map, adr);
- writeb(d.x[0], iomapadr + (adr & WINDOW_MASK));
- spin_unlock(&oct5066_spin);
-}
-
-static void oct5066_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
-{
- while(len) {
- unsigned long thislen = len;
- if (len > (WINDOW_LENGTH - (to & WINDOW_MASK)))
- thislen = WINDOW_LENGTH-(to & WINDOW_MASK);
-
- spin_lock(&oct5066_spin);
- oct5066_page(map, to);
- memcpy_toio(iomapadr + to, from, thislen);
- spin_unlock(&oct5066_spin);
- to += thislen;
- from += thislen;
- len -= thislen;
- }
-}
-
-static struct map_info oct5066_map[2] = {
- {
- .name = "Octagon 5066 Socket",
- .phys = NO_XIP,
- .size = 512 * 1024,
- .bankwidth = 1,
- .read = oct5066_read8,
- .copy_from = oct5066_copy_from,
- .write = oct5066_write8,
- .copy_to = oct5066_copy_to,
- .map_priv_1 = 1<<6
- },
- {
- .name = "Octagon 5066 Internal Flash",
- .phys = NO_XIP,
- .size = 2 * 1024 * 1024,
- .bankwidth = 1,
- .read = oct5066_read8,
- .copy_from = oct5066_copy_from,
- .write = oct5066_write8,
- .copy_to = oct5066_copy_to,
- .map_priv_1 = 2<<6
- }
-};
-
-static struct mtd_info *oct5066_mtd[2] = {NULL, NULL};
-
-// OctProbe - Sense if this is an octagon card
-// ---------------------------------------------------------------------
-/* Perform a simple validity test, we map the window select SSD0 and
- change pages while monitoring the window. A change in the window,
- controlled by the PAGE_IO port is a functioning 5066 board. This will
- fail if the thing in the socket is set to a uniform value. */
-static int __init OctProbe(void)
-{
- unsigned int Base = (1 << 6);
- unsigned long I;
- unsigned long Values[10];
- for (I = 0; I != 20; I++)
- {
- outb(Base + (I%10),PAGE_IO);
- if (I < 10)
- {
- // Record the value and check for uniqueness
- Values[I%10] = readl(iomapadr);
- if (I > 0 && Values[I%10] == Values[0])
- return -EAGAIN;
- }
- else
- {
- // Make sure we get the same values on the second pass
- if (Values[I%10] != readl(iomapadr))
- return -EAGAIN;
- }
- }
- return 0;
-}
-
-void cleanup_oct5066(void)
-{
- int i;
- for (i=0; i<2; i++) {
- if (oct5066_mtd[i]) {
- mtd_device_unregister(oct5066_mtd[i]);
- map_destroy(oct5066_mtd[i]);
- }
- }
- iounmap((void *)iomapadr);
- release_region(PAGE_IO, 1);
-}
-
-static int __init init_oct5066(void)
-{
- int i;
- int ret = 0;
-
- // Do an autoprobe sequence
- if (!request_region(PAGE_IO,1,"Octagon SSD")) {
- printk(KERN_NOTICE "5066: Page Register in Use\n");
- return -EAGAIN;
- }
- iomapadr = (unsigned long)ioremap(WINDOW_START, WINDOW_LENGTH);
- if (!iomapadr) {
- printk(KERN_NOTICE "Failed to ioremap memory region\n");
- ret = -EIO;
- goto out_rel;
- }
- if (OctProbe() != 0) {
- printk(KERN_NOTICE "5066: Octagon Probe Failed, is this an Octagon 5066 SBC?\n");
- iounmap((void *)iomapadr);
- ret = -EAGAIN;
- goto out_unmap;
- }
-
- // Print out our little header..
- printk("Octagon 5066 SSD IO:0x%x MEM:0x%x-0x%x\n",PAGE_IO,WINDOW_START,
- WINDOW_START+WINDOW_LENGTH);
-
- for (i=0; i<2; i++) {
- oct5066_mtd[i] = do_map_probe("cfi_probe", &oct5066_map[i]);
- if (!oct5066_mtd[i])
- oct5066_mtd[i] = do_map_probe("jedec", &oct5066_map[i]);
- if (!oct5066_mtd[i])
- oct5066_mtd[i] = do_map_probe("map_ram", &oct5066_map[i]);
- if (!oct5066_mtd[i])
- oct5066_mtd[i] = do_map_probe("map_rom", &oct5066_map[i]);
- if (oct5066_mtd[i]) {
- oct5066_mtd[i]->owner = THIS_MODULE;
- mtd_device_register(oct5066_mtd[i], NULL, 0);
- }
- }
-
- if (!oct5066_mtd[0] && !oct5066_mtd[1]) {
- cleanup_oct5066();
- return -ENXIO;
- }
-
- return 0;
-
- out_unmap:
- iounmap((void *)iomapadr);
- out_rel:
- release_region(PAGE_IO, 1);
- return ret;
-}
-
-module_init(init_oct5066);
-module_exit(cleanup_oct5066);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Jason Gunthorpe <jgg@deltatee.com>, David Woodhouse <dwmw2@infradead.org>");
-MODULE_DESCRIPTION("MTD map driver for Octagon 5066 Single Board Computer");
diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c
index e7a592c..f73cd46 100644
--- a/drivers/mtd/maps/physmap.c
+++ b/drivers/mtd/maps/physmap.c
@@ -40,9 +40,8 @@ static int physmap_flash_remove(struct platform_device *dev)
info = platform_get_drvdata(dev);
if (info == NULL)
return 0;
- platform_set_drvdata(dev, NULL);
- physmap_data = dev->dev.platform_data;
+ physmap_data = dev_get_platdata(&dev->dev);
if (info->cmtd) {
mtd_device_unregister(info->cmtd);
@@ -69,7 +68,7 @@ static void physmap_set_vpp(struct map_info *map, int state)
unsigned long flags;
pdev = (struct platform_device *)map->map_priv_1;
- physmap_data = pdev->dev.platform_data;
+ physmap_data = dev_get_platdata(&pdev->dev);
if (!physmap_data->set_vpp)
return;
@@ -103,7 +102,7 @@ static int physmap_flash_probe(struct platform_device *dev)
int i;
int devices_found = 0;
- physmap_data = dev->dev.platform_data;
+ physmap_data = dev_get_platdata(&dev->dev);
if (physmap_data == NULL)
return -ENODEV;
diff --git a/drivers/mtd/maps/plat-ram.c b/drivers/mtd/maps/plat-ram.c
index 71fdda2..6762716 100644
--- a/drivers/mtd/maps/plat-ram.c
+++ b/drivers/mtd/maps/plat-ram.c
@@ -84,8 +84,6 @@ static int platram_remove(struct platform_device *pdev)
{
struct platram_info *info = to_platram_info(pdev);
- platform_set_drvdata(pdev, NULL);
-
dev_dbg(&pdev->dev, "removing device\n");
if (info == NULL)
@@ -130,13 +128,13 @@ static int platram_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev, "probe entered\n");
- if (pdev->dev.platform_data == NULL) {
+ if (dev_get_platdata(&pdev->dev) == NULL) {
dev_err(&pdev->dev, "no platform data supplied\n");
err = -ENOENT;
goto exit_error;
}
- pdata = pdev->dev.platform_data;
+ pdata = dev_get_platdata(&pdev->dev);
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (info == NULL) {
diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c
index acb1dbc..d210d13 100644
--- a/drivers/mtd/maps/pxa2xx-flash.c
+++ b/drivers/mtd/maps/pxa2xx-flash.c
@@ -49,7 +49,7 @@ static const char * const probes[] = { "RedBoot", "cmdlinepart", NULL };
static int pxa2xx_flash_probe(struct platform_device *pdev)
{
- struct flash_platform_data *flash = pdev->dev.platform_data;
+ struct flash_platform_data *flash = dev_get_platdata(&pdev->dev);
struct pxa2xx_flash_info *info;
struct resource *res;
@@ -107,8 +107,6 @@ static int pxa2xx_flash_remove(struct platform_device *dev)
{
struct pxa2xx_flash_info *info = platform_get_drvdata(dev);
- platform_set_drvdata(dev, NULL);
-
mtd_device_unregister(info->mtd);
map_destroy(info->mtd);
diff --git a/drivers/mtd/maps/rbtx4939-flash.c b/drivers/mtd/maps/rbtx4939-flash.c
index ac02fbf..9352512 100644
--- a/drivers/mtd/maps/rbtx4939-flash.c
+++ b/drivers/mtd/maps/rbtx4939-flash.c
@@ -34,10 +34,9 @@ static int rbtx4939_flash_remove(struct platform_device *dev)
info = platform_get_drvdata(dev);
if (!info)
return 0;
- platform_set_drvdata(dev, NULL);
if (info->mtd) {
- struct rbtx4939_flash_data *pdata = dev->dev.platform_data;
+ struct rbtx4939_flash_data *pdata = dev_get_platdata(&dev->dev);
mtd_device_unregister(info->mtd);
map_destroy(info->mtd);
@@ -57,7 +56,7 @@ static int rbtx4939_flash_probe(struct platform_device *dev)
int err = 0;
unsigned long size;
- pdata = dev->dev.platform_data;
+ pdata = dev_get_platdata(&dev->dev);
if (!pdata)
return -ENODEV;
diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c
index 29e3dca..8fc06bf 100644
--- a/drivers/mtd/maps/sa1100-flash.c
+++ b/drivers/mtd/maps/sa1100-flash.c
@@ -248,7 +248,7 @@ static const char * const part_probes[] = { "cmdlinepart", "RedBoot", NULL };
static int sa1100_mtd_probe(struct platform_device *pdev)
{
- struct flash_platform_data *plat = pdev->dev.platform_data;
+ struct flash_platform_data *plat = dev_get_platdata(&pdev->dev);
struct sa_info *info;
int err;
@@ -277,9 +277,8 @@ static int sa1100_mtd_probe(struct platform_device *pdev)
static int __exit sa1100_mtd_remove(struct platform_device *pdev)
{
struct sa_info *info = platform_get_drvdata(pdev);
- struct flash_platform_data *plat = pdev->dev.platform_data;
+ struct flash_platform_data *plat = dev_get_platdata(&pdev->dev);
- platform_set_drvdata(pdev, NULL);
sa1100_destroy(info, plat);
return 0;
diff --git a/drivers/mtd/maps/vmax301.c b/drivers/mtd/maps/vmax301.c
deleted file mode 100644
index 5e68de7..0000000
--- a/drivers/mtd/maps/vmax301.c
+++ /dev/null
@@ -1,196 +0,0 @@
-/* ######################################################################
-
- Tempustech VMAX SBC301 MTD Driver.
-
- The VMAx 301 is a SBC based on . It
- comes with three builtin AMD 29F016B flash chips and a socket for SRAM or
- more flash. Each unit has it's own 8k mapping into a settable region
- (0xD8000). There are two 8k mappings for each MTD, the first is always set
- to the lower 8k of the device the second is paged. Writing a 16 bit page
- value to anywhere in the first 8k will cause the second 8k to page around.
-
- To boot the device a bios extension must be installed into the first 8k
- of flash that is smart enough to copy itself down, page in the rest of
- itself and begin executing.
-
- ##################################################################### */
-
-#include <linux/module.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <asm/io.h>
-
-#include <linux/mtd/map.h>
-#include <linux/mtd/mtd.h>
-
-
-#define WINDOW_START 0xd8000
-#define WINDOW_LENGTH 0x2000
-#define WINDOW_SHIFT 25
-#define WINDOW_MASK 0x1FFF
-
-/* Actually we could use two spinlocks, but we'd have to have
- more private space in the struct map_info. We lose a little
- performance like this, but we'd probably lose more by having
- the extra indirection from having one of the map->map_priv
- fields pointing to yet another private struct.
-*/
-static DEFINE_SPINLOCK(vmax301_spin);
-
-static void __vmax301_page(struct map_info *map, unsigned long page)
-{
- writew(page, map->map_priv_2 - WINDOW_LENGTH);
- map->map_priv_1 = page;
-}
-
-static inline void vmax301_page(struct map_info *map,
- unsigned long ofs)
-{
- unsigned long page = (ofs >> WINDOW_SHIFT);
- if (map->map_priv_1 != page)
- __vmax301_page(map, page);
-}
-
-static map_word vmax301_read8(struct map_info *map, unsigned long ofs)
-{
- map_word ret;
- spin_lock(&vmax301_spin);
- vmax301_page(map, ofs);
- ret.x[0] = readb(map->map_priv_2 + (ofs & WINDOW_MASK));
- spin_unlock(&vmax301_spin);
- return ret;
-}
-
-static void vmax301_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
-{
- while(len) {
- unsigned long thislen = len;
- if (len > (WINDOW_LENGTH - (from & WINDOW_MASK)))
- thislen = WINDOW_LENGTH-(from & WINDOW_MASK);
- spin_lock(&vmax301_spin);
- vmax301_page(map, from);
- memcpy_fromio(to, map->map_priv_2 + from, thislen);
- spin_unlock(&vmax301_spin);
- to += thislen;
- from += thislen;
- len -= thislen;
- }
-}
-
-static void vmax301_write8(struct map_info *map, map_word d, unsigned long adr)
-{
- spin_lock(&vmax301_spin);
- vmax301_page(map, adr);
- writeb(d.x[0], map->map_priv_2 + (adr & WINDOW_MASK));
- spin_unlock(&vmax301_spin);
-}
-
-static void vmax301_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
-{
- while(len) {
- unsigned long thislen = len;
- if (len > (WINDOW_LENGTH - (to & WINDOW_MASK)))
- thislen = WINDOW_LENGTH-(to & WINDOW_MASK);
-
- spin_lock(&vmax301_spin);
- vmax301_page(map, to);
- memcpy_toio(map->map_priv_2 + to, from, thislen);
- spin_unlock(&vmax301_spin);
- to += thislen;
- from += thislen;
- len -= thislen;
- }
-}
-
-static struct map_info vmax_map[2] = {
- {
- .name = "VMAX301 Internal Flash",
- .phys = NO_XIP,
- .size = 3*2*1024*1024,
- .bankwidth = 1,
- .read = vmax301_read8,
- .copy_from = vmax301_copy_from,
- .write = vmax301_write8,
- .copy_to = vmax301_copy_to,
- .map_priv_1 = WINDOW_START + WINDOW_LENGTH,
- .map_priv_2 = 0xFFFFFFFF
- },
- {
- .name = "VMAX301 Socket",
- .phys = NO_XIP,
- .size = 0,
- .bankwidth = 1,
- .read = vmax301_read8,
- .copy_from = vmax301_copy_from,
- .write = vmax301_write8,
- .copy_to = vmax301_copy_to,
- .map_priv_1 = WINDOW_START + (3*WINDOW_LENGTH),
- .map_priv_2 = 0xFFFFFFFF
- }
-};
-
-static struct mtd_info *vmax_mtd[2] = {NULL, NULL};
-
-static void __exit cleanup_vmax301(void)
-{
- int i;
-
- for (i=0; i<2; i++) {
- if (vmax_mtd[i]) {
- mtd_device_unregister(vmax_mtd[i]);
- map_destroy(vmax_mtd[i]);
- }
- }
- iounmap((void *)vmax_map[0].map_priv_1 - WINDOW_START);
-}
-
-static int __init init_vmax301(void)
-{
- int i;
- unsigned long iomapadr;
- // Print out our little header..
- printk("Tempustech VMAX 301 MEM:0x%x-0x%x\n",WINDOW_START,
- WINDOW_START+4*WINDOW_LENGTH);
-
- iomapadr = (unsigned long)ioremap(WINDOW_START, WINDOW_LENGTH*4);
- if (!iomapadr) {
- printk("Failed to ioremap memory region\n");
- return -EIO;
- }
- /* Put the address in the map's private data area.
- We store the actual MTD IO address rather than the
- address of the first half, because it's used more
- often.
- */
- vmax_map[0].map_priv_2 = iomapadr + WINDOW_START;
- vmax_map[1].map_priv_2 = iomapadr + (3*WINDOW_START);
-
- for (i=0; i<2; i++) {
- vmax_mtd[i] = do_map_probe("cfi_probe", &vmax_map[i]);
- if (!vmax_mtd[i])
- vmax_mtd[i] = do_map_probe("jedec", &vmax_map[i]);
- if (!vmax_mtd[i])
- vmax_mtd[i] = do_map_probe("map_ram", &vmax_map[i]);
- if (!vmax_mtd[i])
- vmax_mtd[i] = do_map_probe("map_rom", &vmax_map[i]);
- if (vmax_mtd[i]) {
- vmax_mtd[i]->owner = THIS_MODULE;
- mtd_device_register(vmax_mtd[i], NULL, 0);
- }
- }
-
- if (!vmax_mtd[0] && !vmax_mtd[1]) {
- iounmap((void *)iomapadr);
- return -ENXIO;
- }
-
- return 0;
-}
-
-module_init(init_vmax301);
-module_exit(cleanup_vmax301);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
-MODULE_DESCRIPTION("MTD map driver for Tempustech VMAX SBC301 board");
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 048c823..5e14d54 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -285,6 +285,16 @@ static DEVICE_ATTR(bitflip_threshold, S_IRUGO | S_IWUSR,
mtd_bitflip_threshold_show,
mtd_bitflip_threshold_store);
+static ssize_t mtd_ecc_step_size_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct mtd_info *mtd = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%u\n", mtd->ecc_step_size);
+
+}
+static DEVICE_ATTR(ecc_step_size, S_IRUGO, mtd_ecc_step_size_show, NULL);
+
static struct attribute *mtd_attrs[] = {
&dev_attr_type.attr,
&dev_attr_flags.attr,
@@ -296,6 +306,7 @@ static struct attribute *mtd_attrs[] = {
&dev_attr_numeraseregions.attr,
&dev_attr_name.attr,
&dev_attr_ecc_strength.attr,
+ &dev_attr_ecc_step_size.attr,
&dev_attr_bitflip_threshold.attr,
NULL,
};
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 3014933..6e732c3 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -516,6 +516,7 @@ static struct mtd_part *allocate_partition(struct mtd_info *master,
}
slave->mtd.ecclayout = master->ecclayout;
+ slave->mtd.ecc_step_size = master->ecc_step_size;
slave->mtd.ecc_strength = master->ecc_strength;
slave->mtd.bitflip_threshold = master->bitflip_threshold;
diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c
index c92f0f6..8b33b26 100644
--- a/drivers/mtd/mtdswap.c
+++ b/drivers/mtd/mtdswap.c
@@ -1425,7 +1425,7 @@ static void mtdswap_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
return;
while ((this_opt = strsep(&parts, ",")) != NULL) {
- if (strict_strtoul(this_opt, 0, &part) < 0)
+ if (kstrtoul(this_opt, 0, &part) < 0)
return;
if (mtd->index == part)
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 50543f1..d885298 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -43,6 +43,7 @@ config MTD_SM_COMMON
config MTD_NAND_DENALI
tristate "Support Denali NAND controller"
+ depends on HAS_DMA
help
Enable support for the Denali NAND controller. This should be
combined with either the PCI or platform drivers to provide device
@@ -75,7 +76,7 @@ config MTD_NAND_DENALI_SCRATCH_REG_ADDR
config MTD_NAND_GPIO
tristate "GPIO NAND Flash driver"
- depends on GPIOLIB && ARM
+ depends on GPIOLIB
help
This enables a GPIO based NAND flash driver.
@@ -354,7 +355,7 @@ config MTD_NAND_ATMEL
config MTD_NAND_PXA3xx
tristate "Support for NAND flash devices on PXA3xx"
- depends on PXA3xx || ARCH_MMP
+ depends on PXA3xx || ARCH_MMP || PLAT_ORION
help
This enables the driver for the NAND flash device found on
PXA3xx processors
@@ -432,13 +433,6 @@ config MTD_NAND_PLATFORM
devices. You will need to provide platform-specific functions
via platform_data.
-config MTD_ALAUDA
- tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
- depends on USB
- help
- These two (and possibly other) Alauda-based cardreaders for
- SmartMedia and xD allow raw flash access.
-
config MTD_NAND_ORION
tristate "NAND Flash support for Marvell Orion SoC"
depends on PLAT_ORION
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index bb81891..542b568 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -31,7 +31,6 @@ obj-$(CONFIG_MTD_NAND_CM_X270) += cmx270_nand.o
obj-$(CONFIG_MTD_NAND_PXA3xx) += pxa3xx_nand.o
obj-$(CONFIG_MTD_NAND_TMIO) += tmio_nand.o
obj-$(CONFIG_MTD_NAND_PLATFORM) += plat_nand.o
-obj-$(CONFIG_MTD_ALAUDA) += alauda.o
obj-$(CONFIG_MTD_NAND_PASEMI) += pasemi_nand.o
obj-$(CONFIG_MTD_NAND_ORION) += orion_nand.o
obj-$(CONFIG_MTD_NAND_FSL_ELBC) += fsl_elbc_nand.o
diff --git a/drivers/mtd/nand/alauda.c b/drivers/mtd/nand/alauda.c
deleted file mode 100644
index 60a0dfd..0000000
--- a/drivers/mtd/nand/alauda.c
+++ /dev/null
@@ -1,723 +0,0 @@
-/*
- * MTD driver for Alauda chips
- *
- * Copyright (C) 2007 Joern Engel <joern@logfs.org>
- *
- * Based on drivers/usb/usb-skeleton.c which is:
- * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
- * and on drivers/usb/storage/alauda.c, which is:
- * (c) 2005 Daniel Drake <dsd@gentoo.org>
- *
- * Idea and initial work by Arnd Bergmann <arnd@arndb.de>
- */
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/kref.h>
-#include <linux/usb.h>
-#include <linux/mutex.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand_ecc.h>
-
-/* Control commands */
-#define ALAUDA_GET_XD_MEDIA_STATUS 0x08
-#define ALAUDA_ACK_XD_MEDIA_CHANGE 0x0a
-#define ALAUDA_GET_XD_MEDIA_SIG 0x86
-
-/* Common prefix */
-#define ALAUDA_BULK_CMD 0x40
-
-/* The two ports */
-#define ALAUDA_PORT_XD 0x00
-#define ALAUDA_PORT_SM 0x01
-
-/* Bulk commands */
-#define ALAUDA_BULK_READ_PAGE 0x84
-#define ALAUDA_BULK_READ_OOB 0x85 /* don't use, there's a chip bug */
-#define ALAUDA_BULK_READ_BLOCK 0x94
-#define ALAUDA_BULK_ERASE_BLOCK 0xa3
-#define ALAUDA_BULK_WRITE_PAGE 0xa4
-#define ALAUDA_BULK_WRITE_BLOCK 0xb4
-#define ALAUDA_BULK_RESET_MEDIA 0xe0
-
-/* Address shifting */
-#define PBA_LO(pba) ((pba & 0xF) << 5)
-#define PBA_HI(pba) (pba >> 3)
-#define PBA_ZONE(pba) (pba >> 11)
-
-#define TIMEOUT HZ
-
-static const struct usb_device_id alauda_table[] = {
- { USB_DEVICE(0x0584, 0x0008) }, /* Fujifilm DPC-R1 */
- { USB_DEVICE(0x07b4, 0x010a) }, /* Olympus MAUSB-10 */
- { }
-};
-MODULE_DEVICE_TABLE(usb, alauda_table);
-
-struct alauda_card {
- u8 id; /* id byte */
- u8 chipshift; /* 1<<chipshift total size */
- u8 pageshift; /* 1<<pageshift page size */
- u8 blockshift; /* 1<<blockshift block size */
-};
-
-struct alauda {
- struct usb_device *dev;
- struct usb_interface *interface;
- struct mtd_info *mtd;
- struct alauda_card *card;
- struct mutex card_mutex;
- u32 pagemask;
- u32 bytemask;
- u32 blockmask;
- unsigned int write_out;
- unsigned int bulk_in;
- unsigned int bulk_out;
- u8 port;
- struct kref kref;
-};
-
-static struct alauda_card alauda_card_ids[] = {
- /* NAND flash */
- { 0x6e, 20, 8, 12}, /* 1 MB */
- { 0xe8, 20, 8, 12}, /* 1 MB */
- { 0xec, 20, 8, 12}, /* 1 MB */
- { 0x64, 21, 8, 12}, /* 2 MB */
- { 0xea, 21, 8, 12}, /* 2 MB */
- { 0x6b, 22, 9, 13}, /* 4 MB */
- { 0xe3, 22, 9, 13}, /* 4 MB */
- { 0xe5, 22, 9, 13}, /* 4 MB */
- { 0xe6, 23, 9, 13}, /* 8 MB */
- { 0x73, 24, 9, 14}, /* 16 MB */
- { 0x75, 25, 9, 14}, /* 32 MB */
- { 0x76, 26, 9, 14}, /* 64 MB */
- { 0x79, 27, 9, 14}, /* 128 MB */
- { 0x71, 28, 9, 14}, /* 256 MB */
-
- /* MASK ROM */
- { 0x5d, 21, 9, 13}, /* 2 MB */
- { 0xd5, 22, 9, 13}, /* 4 MB */
- { 0xd6, 23, 9, 13}, /* 8 MB */
- { 0x57, 24, 9, 13}, /* 16 MB */
- { 0x58, 25, 9, 13}, /* 32 MB */
- { }
-};
-
-static struct alauda_card *get_card(u8 id)
-{
- struct alauda_card *card;
-
- for (card = alauda_card_ids; card->id; card++)
- if (card->id == id)
- return card;
- return NULL;
-}
-
-static void alauda_delete(struct kref *kref)
-{
- struct alauda *al = container_of(kref, struct alauda, kref);
-
- if (al->mtd) {
- mtd_device_unregister(al->mtd);
- kfree(al->mtd);
- }
- usb_put_dev(al->dev);
- kfree(al);
-}
-
-static int alauda_get_media_status(struct alauda *al, void *buf)
-{
- int ret;
-
- mutex_lock(&al->card_mutex);
- ret = usb_control_msg(al->dev, usb_rcvctrlpipe(al->dev, 0),
- ALAUDA_GET_XD_MEDIA_STATUS, 0xc0, 0, 1, buf, 2, HZ);
- mutex_unlock(&al->card_mutex);
- return ret;
-}
-
-static int alauda_ack_media(struct alauda *al)
-{
- int ret;
-
- mutex_lock(&al->card_mutex);
- ret = usb_control_msg(al->dev, usb_sndctrlpipe(al->dev, 0),
- ALAUDA_ACK_XD_MEDIA_CHANGE, 0x40, 0, 1, NULL, 0, HZ);
- mutex_unlock(&al->card_mutex);
- return ret;
-}
-
-static int alauda_get_media_signatures(struct alauda *al, void *buf)
-{
- int ret;
-
- mutex_lock(&al->card_mutex);
- ret = usb_control_msg(al->dev, usb_rcvctrlpipe(al->dev, 0),
- ALAUDA_GET_XD_MEDIA_SIG, 0xc0, 0, 0, buf, 4, HZ);
- mutex_unlock(&al->card_mutex);
- return ret;
-}
-
-static void alauda_reset(struct alauda *al)
-{
- u8 command[] = {
- ALAUDA_BULK_CMD, ALAUDA_BULK_RESET_MEDIA, 0, 0,
- 0, 0, 0, 0, al->port
- };
- mutex_lock(&al->card_mutex);
- usb_bulk_msg(al->dev, al->bulk_out, command, 9, NULL, HZ);
- mutex_unlock(&al->card_mutex);
-}
-
-static void correct_data(void *buf, void *read_ecc,
- int *corrected, int *uncorrected)
-{
- u8 calc_ecc[3];
- int err;
-
- nand_calculate_ecc(NULL, buf, calc_ecc);
- err = nand_correct_data(NULL, buf, read_ecc, calc_ecc);
- if (err) {
- if (err > 0)
- (*corrected)++;
- else
- (*uncorrected)++;
- }
-}
-
-struct alauda_sg_request {
- struct urb *urb[3];
- struct completion comp;
-};
-
-static void alauda_complete(struct urb *urb)
-{
- struct completion *comp = urb->context;
-
- if (comp)
- complete(comp);
-}
-
-static int __alauda_read_page(struct mtd_info *mtd, loff_t from, void *buf,
- void *oob)
-{
- struct alauda_sg_request sg;
- struct alauda *al = mtd->priv;
- u32 pba = from >> al->card->blockshift;
- u32 page = (from >> al->card->pageshift) & al->pagemask;
- u8 command[] = {
- ALAUDA_BULK_CMD, ALAUDA_BULK_READ_PAGE, PBA_HI(pba),
- PBA_ZONE(pba), 0, PBA_LO(pba) + page, 1, 0, al->port
- };
- int i, err;
-
- for (i=0; i<3; i++)
- sg.urb[i] = NULL;
-
- err = -ENOMEM;
- for (i=0; i<3; i++) {
- sg.urb[i] = usb_alloc_urb(0, GFP_NOIO);
- if (!sg.urb[i])
- goto out;
- }
- init_completion(&sg.comp);
- usb_fill_bulk_urb(sg.urb[0], al->dev, al->bulk_out, command, 9,
- alauda_complete, NULL);
- usb_fill_bulk_urb(sg.urb[1], al->dev, al->bulk_in, buf, mtd->writesize,
- alauda_complete, NULL);
- usb_fill_bulk_urb(sg.urb[2], al->dev, al->bulk_in, oob, 16,
- alauda_complete, &sg.comp);
-
- mutex_lock(&al->card_mutex);
- for (i=0; i<3; i++) {
- err = usb_submit_urb(sg.urb[i], GFP_NOIO);
- if (err)
- goto cancel;
- }
- if (!wait_for_completion_timeout(&sg.comp, TIMEOUT)) {
- err = -ETIMEDOUT;
-cancel:
- for (i=0; i<3; i++) {
- usb_kill_urb(sg.urb[i]);
- }
- }
- mutex_unlock(&al->card_mutex);
-
-out:
- usb_free_urb(sg.urb[0]);
- usb_free_urb(sg.urb[1]);
- usb_free_urb(sg.urb[2]);
- return err;
-}
-
-static int alauda_read_page(struct mtd_info *mtd, loff_t from,
- void *buf, u8 *oob, int *corrected, int *uncorrected)
-{
- int err;
-
- err = __alauda_read_page(mtd, from, buf, oob);
- if (err)
- return err;
- correct_data(buf, oob+13, corrected, uncorrected);
- correct_data(buf+256, oob+8, corrected, uncorrected);
- return 0;
-}
-
-static int alauda_write_page(struct mtd_info *mtd, loff_t to, void *buf,
- void *oob)
-{
- struct alauda_sg_request sg;
- struct alauda *al = mtd->priv;
- u32 pba = to >> al->card->blockshift;
- u32 page = (to >> al->card->pageshift) & al->pagemask;
- u8 command[] = {
- ALAUDA_BULK_CMD, ALAUDA_BULK_WRITE_PAGE, PBA_HI(pba),
- PBA_ZONE(pba), 0, PBA_LO(pba) + page, 32, 0, al->port
- };
- int i, err;
-
- for (i=0; i<3; i++)
- sg.urb[i] = NULL;
-
- err = -ENOMEM;
- for (i=0; i<3; i++) {
- sg.urb[i] = usb_alloc_urb(0, GFP_NOIO);
- if (!sg.urb[i])
- goto out;
- }
- init_completion(&sg.comp);
- usb_fill_bulk_urb(sg.urb[0], al->dev, al->bulk_out, command, 9,
- alauda_complete, NULL);
- usb_fill_bulk_urb(sg.urb[1], al->dev, al->write_out, buf,mtd->writesize,
- alauda_complete, NULL);
- usb_fill_bulk_urb(sg.urb[2], al->dev, al->write_out, oob, 16,
- alauda_complete, &sg.comp);
-
- mutex_lock(&al->card_mutex);
- for (i=0; i<3; i++) {
- err = usb_submit_urb(sg.urb[i], GFP_NOIO);
- if (err)
- goto cancel;
- }
- if (!wait_for_completion_timeout(&sg.comp, TIMEOUT)) {
- err = -ETIMEDOUT;
-cancel:
- for (i=0; i<3; i++) {
- usb_kill_urb(sg.urb[i]);
- }
- }
- mutex_unlock(&al->card_mutex);
-
-out:
- usb_free_urb(sg.urb[0]);
- usb_free_urb(sg.urb[1]);
- usb_free_urb(sg.urb[2]);
- return err;
-}
-
-static int alauda_erase_block(struct mtd_info *mtd, loff_t ofs)
-{
- struct alauda_sg_request sg;
- struct alauda *al = mtd->priv;
- u32 pba = ofs >> al->card->blockshift;
- u8 command[] = {
- ALAUDA_BULK_CMD, ALAUDA_BULK_ERASE_BLOCK, PBA_HI(pba),
- PBA_ZONE(pba), 0, PBA_LO(pba), 0x02, 0, al->port
- };
- u8 buf[2];
- int i, err;
-
- for (i=0; i<2; i++)
- sg.urb[i] = NULL;
-
- err = -ENOMEM;
- for (i=0; i<2; i++) {
- sg.urb[i] = usb_alloc_urb(0, GFP_NOIO);
- if (!sg.urb[i])
- goto out;
- }
- init_completion(&sg.comp);
- usb_fill_bulk_urb(sg.urb[0], al->dev, al->bulk_out, command, 9,
- alauda_complete, NULL);
- usb_fill_bulk_urb(sg.urb[1], al->dev, al->bulk_in, buf, 2,
- alauda_complete, &sg.comp);
-
- mutex_lock(&al->card_mutex);
- for (i=0; i<2; i++) {
- err = usb_submit_urb(sg.urb[i], GFP_NOIO);
- if (err)
- goto cancel;
- }
- if (!wait_for_completion_timeout(&sg.comp, TIMEOUT)) {
- err = -ETIMEDOUT;
-cancel:
- for (i=0; i<2; i++) {
- usb_kill_urb(sg.urb[i]);
- }
- }
- mutex_unlock(&al->card_mutex);
-
-out:
- usb_free_urb(sg.urb[0]);
- usb_free_urb(sg.urb[1]);
- return err;
-}
-
-static int alauda_read_oob(struct mtd_info *mtd, loff_t from, void *oob)
-{
- static u8 ignore_buf[512]; /* write only */
-
- return __alauda_read_page(mtd, from, ignore_buf, oob);
-}
-
-static int alauda_isbad(struct mtd_info *mtd, loff_t ofs)
-{
- u8 oob[16];
- int err;
-
- err = alauda_read_oob(mtd, ofs, oob);
- if (err)
- return err;
-
- /* A block is marked bad if two or more bits are zero */
- return hweight8(oob[5]) >= 7 ? 0 : 1;
-}
-
-static int alauda_bounce_read(struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char *buf)
-{
- struct alauda *al = mtd->priv;
- void *bounce_buf;
- int err, corrected=0, uncorrected=0;
-
- bounce_buf = kmalloc(mtd->writesize, GFP_KERNEL);
- if (!bounce_buf)
- return -ENOMEM;
-
- *retlen = len;
- while (len) {
- u8 oob[16];
- size_t byte = from & al->bytemask;
- size_t cplen = min(len, mtd->writesize - byte);
-
- err = alauda_read_page(mtd, from, bounce_buf, oob,
- &corrected, &uncorrected);
- if (err)
- goto out;
-
- memcpy(buf, bounce_buf + byte, cplen);
- buf += cplen;
- from += cplen;
- len -= cplen;
- }
- err = 0;
- if (corrected)
- err = 1; /* return max_bitflips per ecc step */
- if (uncorrected)
- err = -EBADMSG;
-out:
- kfree(bounce_buf);
- return err;
-}
-
-static int alauda_read(struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char *buf)
-{
- struct alauda *al = mtd->priv;
- int err, corrected=0, uncorrected=0;
-
- if ((from & al->bytemask) || (len & al->bytemask))
- return alauda_bounce_read(mtd, from, len, retlen, buf);
-
- *retlen = len;
- while (len) {
- u8 oob[16];
-
- err = alauda_read_page(mtd, from, buf, oob,
- &corrected, &uncorrected);
- if (err)
- return err;
-
- buf += mtd->writesize;
- from += mtd->writesize;
- len -= mtd->writesize;
- }
- err = 0;
- if (corrected)
- err = 1; /* return max_bitflips per ecc step */
- if (uncorrected)
- err = -EBADMSG;
- return err;
-}
-
-static int alauda_write(struct mtd_info *mtd, loff_t to, size_t len,
- size_t *retlen, const u_char *buf)
-{
- struct alauda *al = mtd->priv;
- int err;
-
- if ((to & al->bytemask) || (len & al->bytemask))
- return -EINVAL;
-
- *retlen = len;
- while (len) {
- u32 page = (to >> al->card->pageshift) & al->pagemask;
- u8 oob[16] = { 'h', 'e', 'l', 'l', 'o', 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
-
- /* don't write to bad blocks */
- if (page == 0) {
- err = alauda_isbad(mtd, to);
- if (err) {
- return -EIO;
- }
- }
- nand_calculate_ecc(mtd, buf, &oob[13]);
- nand_calculate_ecc(mtd, buf+256, &oob[8]);
-
- err = alauda_write_page(mtd, to, (void*)buf, oob);
- if (err)
- return err;
-
- buf += mtd->writesize;
- to += mtd->writesize;
- len -= mtd->writesize;
- }
- return 0;
-}
-
-static int __alauda_erase(struct mtd_info *mtd, struct erase_info *instr)
-{
- struct alauda *al = mtd->priv;
- u32 ofs = instr->addr;
- u32 len = instr->len;
- int err;
-
- if ((ofs & al->blockmask) || (len & al->blockmask))
- return -EINVAL;
-
- while (len) {
- /* don't erase bad blocks */
- err = alauda_isbad(mtd, ofs);
- if (err > 0)
- err = -EIO;
- if (err < 0)
- return err;
-
- err = alauda_erase_block(mtd, ofs);
- if (err < 0)
- return err;
-
- ofs += mtd->erasesize;
- len -= mtd->erasesize;
- }
- return 0;
-}
-
-static int alauda_erase(struct mtd_info *mtd, struct erase_info *instr)
-{
- int err;
-
- err = __alauda_erase(mtd, instr);
- instr->state = err ? MTD_ERASE_FAILED : MTD_ERASE_DONE;
- mtd_erase_callback(instr);
- return err;
-}
-
-static int alauda_init_media(struct alauda *al)
-{
- u8 buf[4], *b0=buf, *b1=buf+1;
- struct alauda_card *card;
- struct mtd_info *mtd;
- int err;
-
- mtd = kzalloc(sizeof(*mtd), GFP_KERNEL);
- if (!mtd)
- return -ENOMEM;
-
- for (;;) {
- err = alauda_get_media_status(al, buf);
- if (err < 0)
- goto error;
- if (*b0 & 0x10)
- break;
- msleep(20);
- }
-
- err = alauda_ack_media(al);
- if (err)
- goto error;
-
- msleep(10);
-
- err = alauda_get_media_status(al, buf);
- if (err < 0)
- goto error;
-
- if (*b0 != 0x14) {
- /* media not ready */
- err = -EIO;
- goto error;
- }
- err = alauda_get_media_signatures(al, buf);
- if (err < 0)
- goto error;
-
- card = get_card(*b1);
- if (!card) {
- printk(KERN_ERR"Alauda: unknown card id %02x\n", *b1);
- err = -EIO;
- goto error;
- }
- printk(KERN_INFO"pagesize=%x\nerasesize=%x\nsize=%xMiB\n",
- 1<<card->pageshift, 1<<card->blockshift,
- 1<<(card->chipshift-20));
- al->card = card;
- al->pagemask = (1 << (card->blockshift - card->pageshift)) - 1;
- al->bytemask = (1 << card->pageshift) - 1;
- al->blockmask = (1 << card->blockshift) - 1;
-
- mtd->name = "alauda";
- mtd->size = 1<<card->chipshift;
- mtd->erasesize = 1<<card->blockshift;
- mtd->writesize = 1<<card->pageshift;
- mtd->type = MTD_NANDFLASH;
- mtd->flags = MTD_CAP_NANDFLASH;
- mtd->_read = alauda_read;
- mtd->_write = alauda_write;
- mtd->_erase = alauda_erase;
- mtd->_block_isbad = alauda_isbad;
- mtd->priv = al;
- mtd->owner = THIS_MODULE;
- mtd->ecc_strength = 1;
-
- err = mtd_device_register(mtd, NULL, 0);
- if (err) {
- err = -ENFILE;
- goto error;
- }
-
- al->mtd = mtd;
- alauda_reset(al); /* no clue whether this is necessary */
- return 0;
-error:
- kfree(mtd);
- return err;
-}
-
-static int alauda_check_media(struct alauda *al)
-{
- u8 buf[2], *b0 = buf, *b1 = buf+1;
- int err;
-
- err = alauda_get_media_status(al, buf);
- if (err < 0)
- return err;
-
- if ((*b1 & 0x01) == 0) {
- /* door open */
- return -EIO;
- }
- if ((*b0 & 0x80) || ((*b0 & 0x1F) == 0x10)) {
- /* no media ? */
- return -EIO;
- }
- if (*b0 & 0x08) {
- /* media change ? */
- return alauda_init_media(al);
- }
- return 0;
-}
-
-static int alauda_probe(struct usb_interface *interface,
- const struct usb_device_id *id)
-{
- struct alauda *al;
- struct usb_host_interface *iface;
- struct usb_endpoint_descriptor *ep,
- *ep_in=NULL, *ep_out=NULL, *ep_wr=NULL;
- int i, err = -ENOMEM;
-
- al = kzalloc(2*sizeof(*al), GFP_KERNEL);
- if (!al)
- goto error;
-
- kref_init(&al->kref);
- usb_set_intfdata(interface, al);
-
- al->dev = usb_get_dev(interface_to_usbdev(interface));
- al->interface = interface;
-
- iface = interface->cur_altsetting;
- for (i = 0; i < iface->desc.bNumEndpoints; ++i) {
- ep = &iface->endpoint[i].desc;
-
- if (usb_endpoint_is_bulk_in(ep)) {
- ep_in = ep;
- } else if (usb_endpoint_is_bulk_out(ep)) {
- if (i==0)
- ep_wr = ep;
- else
- ep_out = ep;
- }
- }
- err = -EIO;
- if (!ep_wr || !ep_in || !ep_out)
- goto error;
-
- al->write_out = usb_sndbulkpipe(al->dev,
- usb_endpoint_num(ep_wr));
- al->bulk_in = usb_rcvbulkpipe(al->dev,
- usb_endpoint_num(ep_in));
- al->bulk_out = usb_sndbulkpipe(al->dev,
- usb_endpoint_num(ep_out));
-
- /* second device is identical up to now */
- memcpy(al+1, al, sizeof(*al));
-
- mutex_init(&al[0].card_mutex);
- mutex_init(&al[1].card_mutex);
-
- al[0].port = ALAUDA_PORT_XD;
- al[1].port = ALAUDA_PORT_SM;
-
- dev_info(&interface->dev, "alauda probed\n");
- alauda_check_media(al);
- alauda_check_media(al+1);
-
- return 0;
-
-error:
- if (al)
- kref_put(&al->kref, alauda_delete);
- return err;
-}
-
-static void alauda_disconnect(struct usb_interface *interface)
-{
- struct alauda *al;
-
- al = usb_get_intfdata(interface);
- usb_set_intfdata(interface, NULL);
-
- /* FIXME: prevent more I/O from starting */
-
- /* decrement our usage count */
- if (al)
- kref_put(&al->kref, alauda_delete);
-
- dev_info(&interface->dev, "alauda gone");
-}
-
-static struct usb_driver alauda_driver = {
- .name = "alauda",
- .probe = alauda_probe,
- .disconnect = alauda_disconnect,
- .id_table = alauda_table,
-};
-
-module_usb_driver(alauda_driver);
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c
index f1d71cd..8611eb4 100644
--- a/drivers/mtd/nand/ams-delta.c
+++ b/drivers/mtd/nand/ams-delta.c
@@ -258,7 +258,6 @@ static int ams_delta_init(struct platform_device *pdev)
out_mtd:
gpio_free_array(_mandatory_gpio, ARRAY_SIZE(_mandatory_gpio));
out_gpio:
- platform_set_drvdata(pdev, NULL);
gpio_free(AMS_DELTA_GPIO_PIN_NAND_RB);
iounmap(io_base);
out_free:
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 2d23d29..060feea 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -18,6 +18,9 @@
* Add Programmable Multibit ECC support for various AT91 SoC
* © Copyright 2012 ATMEL, Hong Xu
*
+ * Add Nand Flash Controller support for SAMA5 SoC
+ * © Copyright 2013 ATMEL, Josh Wu (josh.wu@atmel.com)
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
@@ -37,13 +40,12 @@
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
+#include <linux/delay.h>
#include <linux/dmaengine.h>
#include <linux/gpio.h>
+#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/platform_data/atmel.h>
-#include <linux/pinctrl/consumer.h>
-
-#include <mach/cpu.h>
static int use_dma = 1;
module_param(use_dma, int, 0);
@@ -58,6 +60,7 @@ module_param(on_flash_bbt, int, 0);
__raw_writel((value), add + ATMEL_ECC_##reg)
#include "atmel_nand_ecc.h" /* Hardware ECC registers */
+#include "atmel_nand_nfc.h" /* Nand Flash Controller definition */
/* oob layout for large page size
* bad block info is on bytes 0 and 1
@@ -85,6 +88,23 @@ static struct nand_ecclayout atmel_oobinfo_small = {
},
};
+struct atmel_nfc {
+ void __iomem *base_cmd_regs;
+ void __iomem *hsmc_regs;
+ void __iomem *sram_bank0;
+ dma_addr_t sram_bank0_phys;
+ bool use_nfc_sram;
+ bool write_by_sram;
+
+ bool is_initialized;
+ struct completion comp_nfc;
+
+ /* Point to the sram bank which include readed data via NFC */
+ void __iomem *data_in_sram;
+ bool will_write_sram;
+};
+static struct atmel_nfc nand_nfc;
+
struct atmel_nand_host {
struct nand_chip nand_chip;
struct mtd_info mtd;
@@ -97,6 +117,8 @@ struct atmel_nand_host {
struct completion comp;
struct dma_chan *dma_chan;
+ struct atmel_nfc *nfc;
+
bool has_pmecc;
u8 pmecc_corr_cap;
u16 pmecc_sector_size;
@@ -128,11 +150,6 @@ struct atmel_nand_host {
static struct nand_ecclayout atmel_pmecc_oobinfo;
-static int cpu_has_dma(void)
-{
- return cpu_is_at91sam9rl() || cpu_is_at91sam9g45();
-}
-
/*
* Enable NAND.
*/
@@ -186,21 +203,103 @@ static int atmel_nand_device_ready(struct mtd_info *mtd)
!!host->board.rdy_pin_active_low;
}
+/* Set up for hardware ready pin and enable pin. */
+static int atmel_nand_set_enable_ready_pins(struct mtd_info *mtd)
+{
+ struct nand_chip *chip = mtd->priv;
+ struct atmel_nand_host *host = chip->priv;
+ int res = 0;
+
+ if (gpio_is_valid(host->board.rdy_pin)) {
+ res = devm_gpio_request(host->dev,
+ host->board.rdy_pin, "nand_rdy");
+ if (res < 0) {
+ dev_err(host->dev,
+ "can't request rdy gpio %d\n",
+ host->board.rdy_pin);
+ return res;
+ }
+
+ res = gpio_direction_input(host->board.rdy_pin);
+ if (res < 0) {
+ dev_err(host->dev,
+ "can't request input direction rdy gpio %d\n",
+ host->board.rdy_pin);
+ return res;
+ }
+
+ chip->dev_ready = atmel_nand_device_ready;
+ }
+
+ if (gpio_is_valid(host->board.enable_pin)) {
+ res = devm_gpio_request(host->dev,
+ host->board.enable_pin, "nand_enable");
+ if (res < 0) {
+ dev_err(host->dev,
+ "can't request enable gpio %d\n",
+ host->board.enable_pin);
+ return res;
+ }
+
+ res = gpio_direction_output(host->board.enable_pin, 1);
+ if (res < 0) {
+ dev_err(host->dev,
+ "can't request output direction enable gpio %d\n",
+ host->board.enable_pin);
+ return res;
+ }
+ }
+
+ return res;
+}
+
+static void memcpy32_fromio(void *trg, const void __iomem *src, size_t size)
+{
+ int i;
+ u32 *t = trg;
+ const __iomem u32 *s = src;
+
+ for (i = 0; i < (size >> 2); i++)
+ *t++ = readl_relaxed(s++);
+}
+
+static void memcpy32_toio(void __iomem *trg, const void *src, int size)
+{
+ int i;
+ u32 __iomem *t = trg;
+ const u32 *s = src;
+
+ for (i = 0; i < (size >> 2); i++)
+ writel_relaxed(*s++, t++);
+}
+
/*
* Minimal-overhead PIO for data access.
*/
static void atmel_read_buf8(struct mtd_info *mtd, u8 *buf, int len)
{
struct nand_chip *nand_chip = mtd->priv;
+ struct atmel_nand_host *host = nand_chip->priv;
- __raw_readsb(nand_chip->IO_ADDR_R, buf, len);
+ if (host->nfc && host->nfc->use_nfc_sram && host->nfc->data_in_sram) {
+ memcpy32_fromio(buf, host->nfc->data_in_sram, len);
+ host->nfc->data_in_sram += len;
+ } else {
+ __raw_readsb(nand_chip->IO_ADDR_R, buf, len);
+ }
}
static void atmel_read_buf16(struct mtd_info *mtd, u8 *buf, int len)
{
struct nand_chip *nand_chip = mtd->priv;
+ struct atmel_nand_host *host = nand_chip->priv;
- __raw_readsw(nand_chip->IO_ADDR_R, buf, len / 2);
+ if (host->nfc && host->nfc->use_nfc_sram && host->nfc->data_in_sram) {
+ memcpy32_fromio(buf, host->nfc->data_in_sram, len);
+ host->nfc->data_in_sram += len;
+ } else {
+ __raw_readsw(nand_chip->IO_ADDR_R, buf, len / 2);
+ }
}
static void atmel_write_buf8(struct mtd_info *mtd, const u8 *buf, int len)
@@ -222,6 +321,40 @@ static void dma_complete_func(void *completion)
complete(completion);
}
+static int nfc_set_sram_bank(struct atmel_nand_host *host, unsigned int bank)
+{
+ /* NFC only has two banks. Must be 0 or 1 */
+ if (bank > 1)
+ return -EINVAL;
+
+ if (bank) {
+ /* Only for a 2k-page or lower flash, NFC can handle 2 banks */
+ if (host->mtd.writesize > 2048)
+ return -EINVAL;
+ nfc_writel(host->nfc->hsmc_regs, BANK, ATMEL_HSMC_NFC_BANK1);
+ } else {
+ nfc_writel(host->nfc->hsmc_regs, BANK, ATMEL_HSMC_NFC_BANK0);
+ }
+
+ return 0;
+}
+
+static uint nfc_get_sram_off(struct atmel_nand_host *host)
+{
+ if (nfc_readl(host->nfc->hsmc_regs, BANK) & ATMEL_HSMC_NFC_BANK1)
+ return NFC_SRAM_BANK1_OFFSET;
+ else
+ return 0;
+}
+
+static dma_addr_t nfc_sram_phys(struct atmel_nand_host *host)
+{
+ if (nfc_readl(host->nfc->hsmc_regs, BANK) & ATMEL_HSMC_NFC_BANK1)
+ return host->nfc->sram_bank0_phys + NFC_SRAM_BANK1_OFFSET;
+ else
+ return host->nfc->sram_bank0_phys;
+}
+
static int atmel_nand_dma_op(struct mtd_info *mtd, void *buf, int len,
int is_read)
{
@@ -235,6 +368,7 @@ static int atmel_nand_dma_op(struct mtd_info *mtd, void *buf, int len,
void *p = buf;
int err = -EIO;
enum dma_data_direction dir = is_read ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
+ struct atmel_nfc *nfc = host->nfc;
if (buf >= high_memory)
goto err_buf;
@@ -251,11 +385,20 @@ static int atmel_nand_dma_op(struct mtd_info *mtd, void *buf, int len,
}
if (is_read) {
- dma_src_addr = host->io_phys;
+ if (nfc && nfc->data_in_sram)
+ dma_src_addr = nfc_sram_phys(host) + (nfc->data_in_sram
+ - (nfc->sram_bank0 + nfc_get_sram_off(host)));
+ else
+ dma_src_addr = host->io_phys;
+
dma_dst_addr = phys_addr;
} else {
dma_src_addr = phys_addr;
- dma_dst_addr = host->io_phys;
+
+ if (nfc && nfc->write_by_sram)
+ dma_dst_addr = nfc_sram_phys(host);
+ else
+ dma_dst_addr = host->io_phys;
}
tx = dma_dev->device_prep_dma_memcpy(host->dma_chan, dma_dst_addr,
@@ -278,6 +421,10 @@ static int atmel_nand_dma_op(struct mtd_info *mtd, void *buf, int len,
dma_async_issue_pending(host->dma_chan);
wait_for_completion(&host->comp);
+ if (is_read && nfc && nfc->data_in_sram)
+ /* After read data from SRAM, need to increase the position */
+ nfc->data_in_sram += len;
+
err = 0;
err_dma:
@@ -366,43 +513,34 @@ static void __iomem *pmecc_get_alpha_to(struct atmel_nand_host *host)
table_size * sizeof(int16_t);
}
-static void pmecc_data_free(struct atmel_nand_host *host)
-{
- kfree(host->pmecc_partial_syn);
- kfree(host->pmecc_si);
- kfree(host->pmecc_lmu);
- kfree(host->pmecc_smu);
- kfree(host->pmecc_mu);
- kfree(host->pmecc_dmu);
- kfree(host->pmecc_delta);
-}
-
static int pmecc_data_alloc(struct atmel_nand_host *host)
{
const int cap = host->pmecc_corr_cap;
+ int size;
+
+ size = (2 * cap + 1) * sizeof(int16_t);
+ host->pmecc_partial_syn = devm_kzalloc(host->dev, size, GFP_KERNEL);
+ host->pmecc_si = devm_kzalloc(host->dev, size, GFP_KERNEL);
+ host->pmecc_lmu = devm_kzalloc(host->dev,
+ (cap + 1) * sizeof(int16_t), GFP_KERNEL);
+ host->pmecc_smu = devm_kzalloc(host->dev,
+ (cap + 2) * size, GFP_KERNEL);
+
+ size = (cap + 1) * sizeof(int);
+ host->pmecc_mu = devm_kzalloc(host->dev, size, GFP_KERNEL);
+ host->pmecc_dmu = devm_kzalloc(host->dev, size, GFP_KERNEL);
+ host->pmecc_delta = devm_kzalloc(host->dev, size, GFP_KERNEL);
+
+ if (!host->pmecc_partial_syn ||
+ !host->pmecc_si ||
+ !host->pmecc_lmu ||
+ !host->pmecc_smu ||
+ !host->pmecc_mu ||
+ !host->pmecc_dmu ||
+ !host->pmecc_delta)
+ return -ENOMEM;
- host->pmecc_partial_syn = kzalloc((2 * cap + 1) * sizeof(int16_t),
- GFP_KERNEL);
- host->pmecc_si = kzalloc((2 * cap + 1) * sizeof(int16_t), GFP_KERNEL);
- host->pmecc_lmu = kzalloc((cap + 1) * sizeof(int16_t), GFP_KERNEL);
- host->pmecc_smu = kzalloc((cap + 2) * (2 * cap + 1) * sizeof(int16_t),
- GFP_KERNEL);
- host->pmecc_mu = kzalloc((cap + 1) * sizeof(int), GFP_KERNEL);
- host->pmecc_dmu = kzalloc((cap + 1) * sizeof(int), GFP_KERNEL);
- host->pmecc_delta = kzalloc((cap + 1) * sizeof(int), GFP_KERNEL);
-
- if (host->pmecc_partial_syn &&
- host->pmecc_si &&
- host->pmecc_lmu &&
- host->pmecc_smu &&
- host->pmecc_mu &&
- host->pmecc_dmu &&
- host->pmecc_delta)
- return 0;
-
- /* error happened */
- pmecc_data_free(host);
- return -ENOMEM;
+ return 0;
}
static void pmecc_gen_syndrome(struct mtd_info *mtd, int sector)
@@ -763,6 +901,30 @@ normal_check:
return total_err;
}
+static void pmecc_enable(struct atmel_nand_host *host, int ecc_op)
+{
+ u32 val;
+
+ if (ecc_op != NAND_ECC_READ && ecc_op != NAND_ECC_WRITE) {
+ dev_err(host->dev, "atmel_nand: wrong pmecc operation type!");
+ return;
+ }
+
+ pmecc_writel(host->ecc, CTRL, PMECC_CTRL_RST);
+ pmecc_writel(host->ecc, CTRL, PMECC_CTRL_DISABLE);
+ val = pmecc_readl_relaxed(host->ecc, CFG);
+
+ if (ecc_op == NAND_ECC_READ)
+ pmecc_writel(host->ecc, CFG, (val & ~PMECC_CFG_WRITE_OP)
+ | PMECC_CFG_AUTO_ENABLE);
+ else
+ pmecc_writel(host->ecc, CFG, (val | PMECC_CFG_WRITE_OP)
+ & ~PMECC_CFG_AUTO_ENABLE);
+
+ pmecc_writel(host->ecc, CTRL, PMECC_CTRL_ENABLE);
+ pmecc_writel(host->ecc, CTRL, PMECC_CTRL_DATA);
+}
+
static int atmel_nand_pmecc_read_page(struct mtd_info *mtd,
struct nand_chip *chip, uint8_t *buf, int oob_required, int page)
{
@@ -774,13 +936,8 @@ static int atmel_nand_pmecc_read_page(struct mtd_info *mtd,
unsigned long end_time;
int bitflips = 0;
- pmecc_writel(host->ecc, CTRL, PMECC_CTRL_RST);
- pmecc_writel(host->ecc, CTRL, PMECC_CTRL_DISABLE);
- pmecc_writel(host->ecc, CFG, (pmecc_readl_relaxed(host->ecc, CFG)
- & ~PMECC_CFG_WRITE_OP) | PMECC_CFG_AUTO_ENABLE);
-
- pmecc_writel(host->ecc, CTRL, PMECC_CTRL_ENABLE);
- pmecc_writel(host->ecc, CTRL, PMECC_CTRL_DATA);
+ if (!host->nfc || !host->nfc->use_nfc_sram)
+ pmecc_enable(host, NAND_ECC_READ);
chip->read_buf(mtd, buf, eccsize);
chip->read_buf(mtd, oob, mtd->oobsize);
@@ -813,16 +970,10 @@ static int atmel_nand_pmecc_write_page(struct mtd_info *mtd,
int i, j;
unsigned long end_time;
- pmecc_writel(host->ecc, CTRL, PMECC_CTRL_RST);
- pmecc_writel(host->ecc, CTRL, PMECC_CTRL_DISABLE);
-
- pmecc_writel(host->ecc, CFG, (pmecc_readl_relaxed(host->ecc, CFG) |
- PMECC_CFG_WRITE_OP) & ~PMECC_CFG_AUTO_ENABLE);
-
- pmecc_writel(host->ecc, CTRL, PMECC_CTRL_ENABLE);
- pmecc_writel(host->ecc, CTRL, PMECC_CTRL_DATA);
-
- chip->write_buf(mtd, (u8 *)buf, mtd->writesize);
+ if (!host->nfc || !host->nfc->write_by_sram) {
+ pmecc_enable(host, NAND_ECC_WRITE);
+ chip->write_buf(mtd, (u8 *)buf, mtd->writesize);
+ }
end_time = jiffies + msecs_to_jiffies(PMECC_MAX_TIMEOUT_MS);
while ((pmecc_readl_relaxed(host->ecc, SR) & PMECC_SR_BUSY)) {
@@ -967,11 +1118,11 @@ static int pmecc_choose_ecc(struct atmel_nand_host *host,
host->pmecc_corr_cap = 2;
else if (*cap <= 4)
host->pmecc_corr_cap = 4;
- else if (*cap < 8)
+ else if (*cap <= 8)
host->pmecc_corr_cap = 8;
- else if (*cap < 12)
+ else if (*cap <= 12)
host->pmecc_corr_cap = 12;
- else if (*cap < 24)
+ else if (*cap <= 24)
host->pmecc_corr_cap = 24;
else
return -EINVAL;
@@ -1002,7 +1153,7 @@ static int __init atmel_pmecc_nand_init_params(struct platform_device *pdev,
return err_no;
}
- if (cap != host->pmecc_corr_cap ||
+ if (cap > host->pmecc_corr_cap ||
sector_size != host->pmecc_sector_size)
dev_info(host->dev, "WARNING: Be Caution! Using different PMECC parameters from Nand ONFI ECC reqirement.\n");
@@ -1023,27 +1174,28 @@ static int __init atmel_pmecc_nand_init_params(struct platform_device *pdev,
return 0;
}
- host->ecc = ioremap(regs->start, resource_size(regs));
- if (host->ecc == NULL) {
+ host->ecc = devm_ioremap_resource(&pdev->dev, regs);
+ if (IS_ERR(host->ecc)) {
dev_err(host->dev, "ioremap failed\n");
- err_no = -EIO;
- goto err_pmecc_ioremap;
+ err_no = PTR_ERR(host->ecc);
+ goto err;
}
regs_pmerr = platform_get_resource(pdev, IORESOURCE_MEM, 2);
- regs_rom = platform_get_resource(pdev, IORESOURCE_MEM, 3);
- if (regs_pmerr && regs_rom) {
- host->pmerrloc_base = ioremap(regs_pmerr->start,
- resource_size(regs_pmerr));
- host->pmecc_rom_base = ioremap(regs_rom->start,
- resource_size(regs_rom));
+ host->pmerrloc_base = devm_ioremap_resource(&pdev->dev, regs_pmerr);
+ if (IS_ERR(host->pmerrloc_base)) {
+ dev_err(host->dev,
+ "Can not get I/O resource for PMECC ERRLOC controller!\n");
+ err_no = PTR_ERR(host->pmerrloc_base);
+ goto err;
}
- if (!host->pmerrloc_base || !host->pmecc_rom_base) {
- dev_err(host->dev,
- "Can not get I/O resource for PMECC ERRLOC controller or ROM!\n");
- err_no = -EIO;
- goto err_pmloc_ioremap;
+ regs_rom = platform_get_resource(pdev, IORESOURCE_MEM, 3);
+ host->pmecc_rom_base = devm_ioremap_resource(&pdev->dev, regs_rom);
+ if (IS_ERR(host->pmecc_rom_base)) {
+ dev_err(host->dev, "Can not get I/O resource for ROM!\n");
+ err_no = PTR_ERR(host->pmecc_rom_base);
+ goto err;
}
/* ECC is calculated for the whole page (1 step) */
@@ -1052,7 +1204,8 @@ static int __init atmel_pmecc_nand_init_params(struct platform_device *pdev,
/* set ECC page size and oob layout */
switch (mtd->writesize) {
case 2048:
- host->pmecc_degree = PMECC_GF_DIMENSION_13;
+ host->pmecc_degree = (sector_size == 512) ?
+ PMECC_GF_DIMENSION_13 : PMECC_GF_DIMENSION_14;
host->pmecc_cw_len = (1 << host->pmecc_degree) - 1;
host->pmecc_sector_number = mtd->writesize / sector_size;
host->pmecc_bytes_per_sector = pmecc_get_ecc_bytes(
@@ -1068,7 +1221,7 @@ static int __init atmel_pmecc_nand_init_params(struct platform_device *pdev,
if (nand_chip->ecc.bytes > mtd->oobsize - 2) {
dev_err(host->dev, "No room for ECC bytes\n");
err_no = -EINVAL;
- goto err_no_ecc_room;
+ goto err;
}
pmecc_config_ecc_layout(&atmel_pmecc_oobinfo,
mtd->oobsize,
@@ -1093,7 +1246,7 @@ static int __init atmel_pmecc_nand_init_params(struct platform_device *pdev,
if (err_no) {
dev_err(host->dev,
"Cannot allocate memory for PMECC computation!\n");
- goto err_pmecc_data_alloc;
+ goto err;
}
nand_chip->ecc.read_page = atmel_nand_pmecc_read_page;
@@ -1103,15 +1256,7 @@ static int __init atmel_pmecc_nand_init_params(struct platform_device *pdev,
return 0;
-err_pmecc_data_alloc:
-err_no_ecc_room:
-err_pmloc_ioremap:
- iounmap(host->ecc);
- if (host->pmerrloc_base)
- iounmap(host->pmerrloc_base);
- if (host->pmecc_rom_base)
- iounmap(host->pmecc_rom_base);
-err_pmecc_ioremap:
+err:
return err_no;
}
@@ -1174,10 +1319,9 @@ static int atmel_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip,
* Workaround: Reset the parity registers before reading the
* actual data.
*/
- if (cpu_is_at32ap7000()) {
- struct atmel_nand_host *host = chip->priv;
+ struct atmel_nand_host *host = chip->priv;
+ if (host->board.need_reset_workaround)
ecc_writel(host->ecc, CR, ATMEL_ECC_RST);
- }
/* read the page */
chip->read_buf(mtd, p, eccsize);
@@ -1298,11 +1442,11 @@ static int atmel_nand_correct(struct mtd_info *mtd, u_char *dat,
*/
static void atmel_nand_hwctl(struct mtd_info *mtd, int mode)
{
- if (cpu_is_at32ap7000()) {
- struct nand_chip *nand_chip = mtd->priv;
- struct atmel_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd->priv;
+ struct atmel_nand_host *host = nand_chip->priv;
+
+ if (host->board.need_reset_workaround)
ecc_writel(host->ecc, CR, ATMEL_ECC_RST);
- }
}
#if defined(CONFIG_OF)
@@ -1337,6 +1481,8 @@ static int atmel_of_init_port(struct atmel_nand_host *host,
board->on_flash_bbt = of_get_nand_on_flash_bbt(np);
+ board->has_dma = of_property_read_bool(np, "atmel,nand-has-dma");
+
if (of_get_nand_bus_width(np) == 16)
board->bus_width_16 = 1;
@@ -1348,6 +1494,9 @@ static int atmel_of_init_port(struct atmel_nand_host *host,
host->has_pmecc = of_property_read_bool(np, "atmel,has-pmecc");
+ /* load the nfc driver if there is */
+ of_platform_populate(np, NULL, NULL, host->dev);
+
if (!(board->ecc_mode == NAND_ECC_HW) || !host->has_pmecc)
return 0; /* Not using PMECC */
@@ -1414,10 +1563,10 @@ static int __init atmel_hw_nand_init_params(struct platform_device *pdev,
return 0;
}
- host->ecc = ioremap(regs->start, resource_size(regs));
- if (host->ecc == NULL) {
+ host->ecc = devm_ioremap_resource(&pdev->dev, regs);
+ if (IS_ERR(host->ecc)) {
dev_err(host->dev, "ioremap failed\n");
- return -EIO;
+ return PTR_ERR(host->ecc);
}
/* ECC is calculated for the whole page (1 step) */
@@ -1459,6 +1608,382 @@ static int __init atmel_hw_nand_init_params(struct platform_device *pdev,
return 0;
}
+/* SMC interrupt service routine */
+static irqreturn_t hsmc_interrupt(int irq, void *dev_id)
+{
+ struct atmel_nand_host *host = dev_id;
+ u32 status, mask, pending;
+ irqreturn_t ret = IRQ_HANDLED;
+
+ status = nfc_readl(host->nfc->hsmc_regs, SR);
+ mask = nfc_readl(host->nfc->hsmc_regs, IMR);
+ pending = status & mask;
+
+ if (pending & NFC_SR_XFR_DONE) {
+ complete(&host->nfc->comp_nfc);
+ nfc_writel(host->nfc->hsmc_regs, IDR, NFC_SR_XFR_DONE);
+ } else if (pending & NFC_SR_RB_EDGE) {
+ complete(&host->nfc->comp_nfc);
+ nfc_writel(host->nfc->hsmc_regs, IDR, NFC_SR_RB_EDGE);
+ } else if (pending & NFC_SR_CMD_DONE) {
+ complete(&host->nfc->comp_nfc);
+ nfc_writel(host->nfc->hsmc_regs, IDR, NFC_SR_CMD_DONE);
+ } else {
+ ret = IRQ_NONE;
+ }
+
+ return ret;
+}
+
+/* NFC(Nand Flash Controller) related functions */
+static int nfc_wait_interrupt(struct atmel_nand_host *host, u32 flag)
+{
+ unsigned long timeout;
+ init_completion(&host->nfc->comp_nfc);
+
+ /* Enable interrupt that need to wait for */
+ nfc_writel(host->nfc->hsmc_regs, IER, flag);
+
+ timeout = wait_for_completion_timeout(&host->nfc->comp_nfc,
+ msecs_to_jiffies(NFC_TIME_OUT_MS));
+ if (timeout)
+ return 0;
+
+ /* Time out to wait for the interrupt */
+ dev_err(host->dev, "Time out to wait for interrupt: 0x%08x\n", flag);
+ return -ETIMEDOUT;
+}
+
+static int nfc_send_command(struct atmel_nand_host *host,
+ unsigned int cmd, unsigned int addr, unsigned char cycle0)
+{
+ unsigned long timeout;
+ dev_dbg(host->dev,
+ "nfc_cmd: 0x%08x, addr1234: 0x%08x, cycle0: 0x%02x\n",
+ cmd, addr, cycle0);
+
+ timeout = jiffies + msecs_to_jiffies(NFC_TIME_OUT_MS);
+ while (nfc_cmd_readl(NFCADDR_CMD_NFCBUSY, host->nfc->base_cmd_regs)
+ & NFCADDR_CMD_NFCBUSY) {
+ if (time_after(jiffies, timeout)) {
+ dev_err(host->dev,
+ "Time out to wait CMD_NFCBUSY ready!\n");
+ return -ETIMEDOUT;
+ }
+ }
+ nfc_writel(host->nfc->hsmc_regs, CYCLE0, cycle0);
+ nfc_cmd_addr1234_writel(cmd, addr, host->nfc->base_cmd_regs);
+ return nfc_wait_interrupt(host, NFC_SR_CMD_DONE);
+}
+
+static int nfc_device_ready(struct mtd_info *mtd)
+{
+ struct nand_chip *nand_chip = mtd->priv;
+ struct atmel_nand_host *host = nand_chip->priv;
+ if (!nfc_wait_interrupt(host, NFC_SR_RB_EDGE))
+ return 1;
+ return 0;
+}
+
+static void nfc_select_chip(struct mtd_info *mtd, int chip)
+{
+ struct nand_chip *nand_chip = mtd->priv;
+ struct atmel_nand_host *host = nand_chip->priv;
+
+ if (chip == -1)
+ nfc_writel(host->nfc->hsmc_regs, CTRL, NFC_CTRL_DISABLE);
+ else
+ nfc_writel(host->nfc->hsmc_regs, CTRL, NFC_CTRL_ENABLE);
+}
+
+static int nfc_make_addr(struct mtd_info *mtd, int column, int page_addr,
+ unsigned int *addr1234, unsigned int *cycle0)
+{
+ struct nand_chip *chip = mtd->priv;
+
+ int acycle = 0;
+ unsigned char addr_bytes[8];
+ int index = 0, bit_shift;
+
+ BUG_ON(addr1234 == NULL || cycle0 == NULL);
+
+ *cycle0 = 0;
+ *addr1234 = 0;
+
+ if (column != -1) {
+ if (chip->options & NAND_BUSWIDTH_16)
+ column >>= 1;
+ addr_bytes[acycle++] = column & 0xff;
+ if (mtd->writesize > 512)
+ addr_bytes[acycle++] = (column >> 8) & 0xff;
+ }
+
+ if (page_addr != -1) {
+ addr_bytes[acycle++] = page_addr & 0xff;
+ addr_bytes[acycle++] = (page_addr >> 8) & 0xff;
+ if (chip->chipsize > (128 << 20))
+ addr_bytes[acycle++] = (page_addr >> 16) & 0xff;
+ }
+
+ if (acycle > 4)
+ *cycle0 = addr_bytes[index++];
+
+ for (bit_shift = 0; index < acycle; bit_shift += 8)
+ *addr1234 += addr_bytes[index++] << bit_shift;
+
+ /* return acycle in cmd register */
+ return acycle << NFCADDR_CMD_ACYCLE_BIT_POS;
+}
+
+static void nfc_nand_command(struct mtd_info *mtd, unsigned int command,
+ int column, int page_addr)
+{
+ struct nand_chip *chip = mtd->priv;
+ struct atmel_nand_host *host = chip->priv;
+ unsigned long timeout;
+ unsigned int nfc_addr_cmd = 0;
+
+ unsigned int cmd1 = command << NFCADDR_CMD_CMD1_BIT_POS;
+
+ /* Set default settings: no cmd2, no addr cycle. read from nand */
+ unsigned int cmd2 = 0;
+ unsigned int vcmd2 = 0;
+ int acycle = NFCADDR_CMD_ACYCLE_NONE;
+ int csid = NFCADDR_CMD_CSID_3;
+ int dataen = NFCADDR_CMD_DATADIS;
+ int nfcwr = NFCADDR_CMD_NFCRD;
+ unsigned int addr1234 = 0;
+ unsigned int cycle0 = 0;
+ bool do_addr = true;
+ host->nfc->data_in_sram = NULL;
+
+ dev_dbg(host->dev, "%s: cmd = 0x%02x, col = 0x%08x, page = 0x%08x\n",
+ __func__, command, column, page_addr);
+
+ switch (command) {
+ case NAND_CMD_RESET:
+ nfc_addr_cmd = cmd1 | acycle | csid | dataen | nfcwr;
+ nfc_send_command(host, nfc_addr_cmd, addr1234, cycle0);
+ udelay(chip->chip_delay);
+
+ nfc_nand_command(mtd, NAND_CMD_STATUS, -1, -1);
+ timeout = jiffies + msecs_to_jiffies(NFC_TIME_OUT_MS);
+ while (!(chip->read_byte(mtd) & NAND_STATUS_READY)) {
+ if (time_after(jiffies, timeout)) {
+ dev_err(host->dev,
+ "Time out to wait status ready!\n");
+ break;
+ }
+ }
+ return;
+ case NAND_CMD_STATUS:
+ do_addr = false;
+ break;
+ case NAND_CMD_PARAM:
+ case NAND_CMD_READID:
+ do_addr = false;
+ acycle = NFCADDR_CMD_ACYCLE_1;
+ if (column != -1)
+ addr1234 = column;
+ break;
+ case NAND_CMD_RNDOUT:
+ cmd2 = NAND_CMD_RNDOUTSTART << NFCADDR_CMD_CMD2_BIT_POS;
+ vcmd2 = NFCADDR_CMD_VCMD2;
+ break;
+ case NAND_CMD_READ0:
+ case NAND_CMD_READOOB:
+ if (command == NAND_CMD_READOOB) {
+ column += mtd->writesize;
+ command = NAND_CMD_READ0; /* only READ0 is valid */
+ cmd1 = command << NFCADDR_CMD_CMD1_BIT_POS;
+ }
+ if (host->nfc->use_nfc_sram) {
+ /* Enable Data transfer to sram */
+ dataen = NFCADDR_CMD_DATAEN;
+
+ /* Need enable PMECC now, since NFC will transfer
+ * data in bus after sending nfc read command.
+ */
+ if (chip->ecc.mode == NAND_ECC_HW && host->has_pmecc)
+ pmecc_enable(host, NAND_ECC_READ);
+ }
+
+ cmd2 = NAND_CMD_READSTART << NFCADDR_CMD_CMD2_BIT_POS;
+ vcmd2 = NFCADDR_CMD_VCMD2;
+ break;
+ /* For prgramming command, the cmd need set to write enable */
+ case NAND_CMD_PAGEPROG:
+ case NAND_CMD_SEQIN:
+ case NAND_CMD_RNDIN:
+ nfcwr = NFCADDR_CMD_NFCWR;
+ if (host->nfc->will_write_sram && command == NAND_CMD_SEQIN)
+ dataen = NFCADDR_CMD_DATAEN;
+ break;
+ default:
+ break;
+ }
+
+ if (do_addr)
+ acycle = nfc_make_addr(mtd, column, page_addr, &addr1234,
+ &cycle0);
+
+ nfc_addr_cmd = cmd1 | cmd2 | vcmd2 | acycle | csid | dataen | nfcwr;
+ nfc_send_command(host, nfc_addr_cmd, addr1234, cycle0);
+
+ if (dataen == NFCADDR_CMD_DATAEN)
+ if (nfc_wait_interrupt(host, NFC_SR_XFR_DONE))
+ dev_err(host->dev, "something wrong, No XFR_DONE interrupt comes.\n");
+
+ /*
+ * Program and erase have their own busy handlers status, sequential
+ * in, and deplete1 need no delay.
+ */
+ switch (command) {
+ case NAND_CMD_CACHEDPROG:
+ case NAND_CMD_PAGEPROG:
+ case NAND_CMD_ERASE1:
+ case NAND_CMD_ERASE2:
+ case NAND_CMD_RNDIN:
+ case NAND_CMD_STATUS:
+ case NAND_CMD_RNDOUT:
+ case NAND_CMD_SEQIN:
+ case NAND_CMD_READID:
+ return;
+
+ case NAND_CMD_READ0:
+ if (dataen == NFCADDR_CMD_DATAEN) {
+ host->nfc->data_in_sram = host->nfc->sram_bank0 +
+ nfc_get_sram_off(host);
+ return;
+ }
+ /* fall through */
+ default:
+ nfc_wait_interrupt(host, NFC_SR_RB_EDGE);
+ }
+}
+
+static int nfc_sram_write_page(struct mtd_info *mtd, struct nand_chip *chip,
+ uint32_t offset, int data_len, const uint8_t *buf,
+ int oob_required, int page, int cached, int raw)
+{
+ int cfg, len;
+ int status = 0;
+ struct atmel_nand_host *host = chip->priv;
+ void __iomem *sram = host->nfc->sram_bank0 + nfc_get_sram_off(host);
+
+ /* Subpage write is not supported */
+ if (offset || (data_len < mtd->writesize))
+ return -EINVAL;
+
+ cfg = nfc_readl(host->nfc->hsmc_regs, CFG);
+ len = mtd->writesize;
+
+ if (unlikely(raw)) {
+ len += mtd->oobsize;
+ nfc_writel(host->nfc->hsmc_regs, CFG, cfg | NFC_CFG_WSPARE);
+ } else
+ nfc_writel(host->nfc->hsmc_regs, CFG, cfg & ~NFC_CFG_WSPARE);
+
+ /* Copy page data to sram that will write to nand via NFC */
+ if (use_dma) {
+ if (atmel_nand_dma_op(mtd, (void *)buf, len, 0) != 0)
+ /* Fall back to use cpu copy */
+ memcpy32_toio(sram, buf, len);
+ } else {
+ memcpy32_toio(sram, buf, len);
+ }
+
+ if (chip->ecc.mode == NAND_ECC_HW && host->has_pmecc)
+ /*
+ * When use NFC sram, need set up PMECC before send
+ * NAND_CMD_SEQIN command. Since when the nand command
+ * is sent, nfc will do transfer from sram and nand.
+ */
+ pmecc_enable(host, NAND_ECC_WRITE);
+
+ host->nfc->will_write_sram = true;
+ chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0x00, page);
+ host->nfc->will_write_sram = false;
+
+ if (likely(!raw))
+ /* Need to write ecc into oob */
+ status = chip->ecc.write_page(mtd, chip, buf, oob_required);
+
+ if (status < 0)
+ return status;
+
+ chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+ status = chip->waitfunc(mtd, chip);
+
+ if ((status & NAND_STATUS_FAIL) && (chip->errstat))
+ status = chip->errstat(mtd, chip, FL_WRITING, status, page);
+
+ if (status & NAND_STATUS_FAIL)
+ return -EIO;
+
+ return 0;
+}
+
+static int nfc_sram_init(struct mtd_info *mtd)
+{
+ struct nand_chip *chip = mtd->priv;
+ struct atmel_nand_host *host = chip->priv;
+ int res = 0;
+
+ /* Initialize the NFC CFG register */
+ unsigned int cfg_nfc = 0;
+
+ /* set page size and oob layout */
+ switch (mtd->writesize) {
+ case 512:
+ cfg_nfc = NFC_CFG_PAGESIZE_512;
+ break;
+ case 1024:
+ cfg_nfc = NFC_CFG_PAGESIZE_1024;
+ break;
+ case 2048:
+ cfg_nfc = NFC_CFG_PAGESIZE_2048;
+ break;
+ case 4096:
+ cfg_nfc = NFC_CFG_PAGESIZE_4096;
+ break;
+ case 8192:
+ cfg_nfc = NFC_CFG_PAGESIZE_8192;
+ break;
+ default:
+ dev_err(host->dev, "Unsupported page size for NFC.\n");
+ res = -ENXIO;
+ return res;
+ }
+
+ /* oob bytes size = (NFCSPARESIZE + 1) * 4
+ * Max support spare size is 512 bytes. */
+ cfg_nfc |= (((mtd->oobsize / 4) - 1) << NFC_CFG_NFC_SPARESIZE_BIT_POS
+ & NFC_CFG_NFC_SPARESIZE);
+ /* default set a max timeout */
+ cfg_nfc |= NFC_CFG_RSPARE |
+ NFC_CFG_NFC_DTOCYC | NFC_CFG_NFC_DTOMUL;
+
+ nfc_writel(host->nfc->hsmc_regs, CFG, cfg_nfc);
+
+ host->nfc->will_write_sram = false;
+ nfc_set_sram_bank(host, 0);
+
+ /* Use Write page with NFC SRAM only for PMECC or ECC NONE. */
+ if (host->nfc->write_by_sram) {
+ if ((chip->ecc.mode == NAND_ECC_HW && host->has_pmecc) ||
+ chip->ecc.mode == NAND_ECC_NONE)
+ chip->write_page = nfc_sram_write_page;
+ else
+ host->nfc->write_by_sram = false;
+ }
+
+ dev_info(host->dev, "Using NFC Sram read %s\n",
+ host->nfc->write_by_sram ? "and write" : "");
+ return 0;
+}
+
+static struct platform_driver atmel_nand_nfc_driver;
/*
* Probe for the NAND device.
*/
@@ -1469,30 +1994,27 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
struct nand_chip *nand_chip;
struct resource *mem;
struct mtd_part_parser_data ppdata = {};
- int res;
- struct pinctrl *pinctrl;
-
- mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mem) {
- printk(KERN_ERR "atmel_nand: can't get I/O resource mem\n");
- return -ENXIO;
- }
+ int res, irq;
/* Allocate memory for the device structure (and zero it) */
- host = kzalloc(sizeof(struct atmel_nand_host), GFP_KERNEL);
+ host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL);
if (!host) {
printk(KERN_ERR "atmel_nand: failed to allocate device structure.\n");
return -ENOMEM;
}
- host->io_phys = (dma_addr_t)mem->start;
+ res = platform_driver_register(&atmel_nand_nfc_driver);
+ if (res)
+ dev_err(&pdev->dev, "atmel_nand: can't register NFC driver\n");
- host->io_base = ioremap(mem->start, resource_size(mem));
- if (host->io_base == NULL) {
- printk(KERN_ERR "atmel_nand: ioremap failed\n");
- res = -EIO;
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ host->io_base = devm_ioremap_resource(&pdev->dev, mem);
+ if (IS_ERR(host->io_base)) {
+ dev_err(&pdev->dev, "atmel_nand: ioremap resource failed\n");
+ res = PTR_ERR(host->io_base);
goto err_nand_ioremap;
}
+ host->io_phys = (dma_addr_t)mem->start;
mtd = &host->mtd;
nand_chip = &host->nand_chip;
@@ -1500,9 +2022,9 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
if (pdev->dev.of_node) {
res = atmel_of_init_port(host, pdev->dev.of_node);
if (res)
- goto err_ecc_ioremap;
+ goto err_nand_ioremap;
} else {
- memcpy(&host->board, pdev->dev.platform_data,
+ memcpy(&host->board, dev_get_platdata(&pdev->dev),
sizeof(struct atmel_nand_data));
}
@@ -1513,51 +2035,36 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
/* Set address of NAND IO lines */
nand_chip->IO_ADDR_R = host->io_base;
nand_chip->IO_ADDR_W = host->io_base;
- nand_chip->cmd_ctrl = atmel_nand_cmd_ctrl;
- pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
- if (IS_ERR(pinctrl)) {
- dev_err(host->dev, "Failed to request pinctrl\n");
- res = PTR_ERR(pinctrl);
- goto err_ecc_ioremap;
- }
+ if (nand_nfc.is_initialized) {
+ /* NFC driver is probed and initialized */
+ host->nfc = &nand_nfc;
- if (gpio_is_valid(host->board.rdy_pin)) {
- res = gpio_request(host->board.rdy_pin, "nand_rdy");
- if (res < 0) {
- dev_err(&pdev->dev,
- "can't request rdy gpio %d\n",
- host->board.rdy_pin);
- goto err_ecc_ioremap;
- }
+ nand_chip->select_chip = nfc_select_chip;
+ nand_chip->dev_ready = nfc_device_ready;
+ nand_chip->cmdfunc = nfc_nand_command;
- res = gpio_direction_input(host->board.rdy_pin);
- if (res < 0) {
- dev_err(&pdev->dev,
- "can't request input direction rdy gpio %d\n",
- host->board.rdy_pin);
- goto err_ecc_ioremap;
+ /* Initialize the interrupt for NFC */
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(host->dev, "Cannot get HSMC irq!\n");
+ res = irq;
+ goto err_nand_ioremap;
}
- nand_chip->dev_ready = atmel_nand_device_ready;
- }
-
- if (gpio_is_valid(host->board.enable_pin)) {
- res = gpio_request(host->board.enable_pin, "nand_enable");
- if (res < 0) {
- dev_err(&pdev->dev,
- "can't request enable gpio %d\n",
- host->board.enable_pin);
- goto err_ecc_ioremap;
+ res = devm_request_irq(&pdev->dev, irq, hsmc_interrupt,
+ 0, "hsmc", host);
+ if (res) {
+ dev_err(&pdev->dev, "Unable to request HSMC irq %d\n",
+ irq);
+ goto err_nand_ioremap;
}
+ } else {
+ res = atmel_nand_set_enable_ready_pins(mtd);
+ if (res)
+ goto err_nand_ioremap;
- res = gpio_direction_output(host->board.enable_pin, 1);
- if (res < 0) {
- dev_err(&pdev->dev,
- "can't request output direction enable gpio %d\n",
- host->board.enable_pin);
- goto err_ecc_ioremap;
- }
+ nand_chip->cmd_ctrl = atmel_nand_cmd_ctrl;
}
nand_chip->ecc.mode = host->board.ecc_mode;
@@ -1573,7 +2080,8 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
atmel_nand_enable(host);
if (gpio_is_valid(host->board.det_pin)) {
- res = gpio_request(host->board.det_pin, "nand_det");
+ res = devm_gpio_request(&pdev->dev,
+ host->board.det_pin, "nand_det");
if (res < 0) {
dev_err(&pdev->dev,
"can't request det gpio %d\n",
@@ -1601,7 +2109,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
nand_chip->bbt_options |= NAND_BBT_USE_FLASH;
}
- if (!cpu_has_dma())
+ if (!host->board.has_dma)
use_dma = 0;
if (use_dma) {
@@ -1637,6 +2145,15 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
goto err_hw_ecc;
}
+ /* initialize the nfc configuration register */
+ if (host->nfc && host->nfc->use_nfc_sram) {
+ res = nfc_sram_init(mtd);
+ if (res) {
+ host->nfc->use_nfc_sram = false;
+ dev_err(host->dev, "Disable use nfc sram for data transfer.\n");
+ }
+ }
+
/* second phase scan */
if (nand_scan_tail(mtd)) {
res = -ENXIO;
@@ -1651,27 +2168,16 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
return res;
err_scan_tail:
- if (host->has_pmecc && host->nand_chip.ecc.mode == NAND_ECC_HW) {
+ if (host->has_pmecc && host->nand_chip.ecc.mode == NAND_ECC_HW)
pmecc_writel(host->ecc, CTRL, PMECC_CTRL_DISABLE);
- pmecc_data_free(host);
- }
- if (host->ecc)
- iounmap(host->ecc);
- if (host->pmerrloc_base)
- iounmap(host->pmerrloc_base);
- if (host->pmecc_rom_base)
- iounmap(host->pmecc_rom_base);
err_hw_ecc:
err_scan_ident:
err_no_card:
atmel_nand_disable(host);
- platform_set_drvdata(pdev, NULL);
if (host->dma_chan)
dma_release_channel(host->dma_chan);
-err_ecc_ioremap:
- iounmap(host->io_base);
err_nand_ioremap:
- kfree(host);
+ platform_driver_unregister(&atmel_nand_nfc_driver);
return res;
}
@@ -1691,30 +2197,12 @@ static int __exit atmel_nand_remove(struct platform_device *pdev)
pmecc_writel(host->ecc, CTRL, PMECC_CTRL_DISABLE);
pmerrloc_writel(host->pmerrloc_base, ELDIS,
PMERRLOC_DISABLE);
- pmecc_data_free(host);
}
- if (gpio_is_valid(host->board.det_pin))
- gpio_free(host->board.det_pin);
-
- if (gpio_is_valid(host->board.enable_pin))
- gpio_free(host->board.enable_pin);
-
- if (gpio_is_valid(host->board.rdy_pin))
- gpio_free(host->board.rdy_pin);
-
- if (host->ecc)
- iounmap(host->ecc);
- if (host->pmecc_rom_base)
- iounmap(host->pmecc_rom_base);
- if (host->pmerrloc_base)
- iounmap(host->pmerrloc_base);
-
if (host->dma_chan)
dma_release_channel(host->dma_chan);
- iounmap(host->io_base);
- kfree(host);
+ platform_driver_unregister(&atmel_nand_nfc_driver);
return 0;
}
@@ -1728,6 +2216,59 @@ static const struct of_device_id atmel_nand_dt_ids[] = {
MODULE_DEVICE_TABLE(of, atmel_nand_dt_ids);
#endif
+static int atmel_nand_nfc_probe(struct platform_device *pdev)
+{
+ struct atmel_nfc *nfc = &nand_nfc;
+ struct resource *nfc_cmd_regs, *nfc_hsmc_regs, *nfc_sram;
+
+ nfc_cmd_regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ nfc->base_cmd_regs = devm_ioremap_resource(&pdev->dev, nfc_cmd_regs);
+ if (IS_ERR(nfc->base_cmd_regs))
+ return PTR_ERR(nfc->base_cmd_regs);
+
+ nfc_hsmc_regs = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ nfc->hsmc_regs = devm_ioremap_resource(&pdev->dev, nfc_hsmc_regs);
+ if (IS_ERR(nfc->hsmc_regs))
+ return PTR_ERR(nfc->hsmc_regs);
+
+ nfc_sram = platform_get_resource(pdev, IORESOURCE_MEM, 2);
+ if (nfc_sram) {
+ nfc->sram_bank0 = devm_ioremap_resource(&pdev->dev, nfc_sram);
+ if (IS_ERR(nfc->sram_bank0)) {
+ dev_warn(&pdev->dev, "Fail to ioremap the NFC sram with error: %ld. So disable NFC sram.\n",
+ PTR_ERR(nfc->sram_bank0));
+ } else {
+ nfc->use_nfc_sram = true;
+ nfc->sram_bank0_phys = (dma_addr_t)nfc_sram->start;
+
+ if (pdev->dev.of_node)
+ nfc->write_by_sram = of_property_read_bool(
+ pdev->dev.of_node,
+ "atmel,write-by-sram");
+ }
+ }
+
+ nfc->is_initialized = true;
+ dev_info(&pdev->dev, "NFC is probed.\n");
+ return 0;
+}
+
+#if defined(CONFIG_OF)
+static struct of_device_id atmel_nand_nfc_match[] = {
+ { .compatible = "atmel,sama5d3-nfc" },
+ { /* sentinel */ }
+};
+#endif
+
+static struct platform_driver atmel_nand_nfc_driver = {
+ .driver = {
+ .name = "atmel_nand_nfc",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(atmel_nand_nfc_match),
+ },
+ .probe = atmel_nand_nfc_probe,
+};
+
static struct platform_driver atmel_nand_driver = {
.remove = __exit_p(atmel_nand_remove),
.driver = {
diff --git a/drivers/mtd/nand/atmel_nand_nfc.h b/drivers/mtd/nand/atmel_nand_nfc.h
new file mode 100644
index 0000000..4efd117
--- /dev/null
+++ b/drivers/mtd/nand/atmel_nand_nfc.h
@@ -0,0 +1,98 @@
+/*
+ * Atmel Nand Flash Controller (NFC) - System peripherals regsters.
+ * Based on SAMA5D3 datasheet.
+ *
+ * © Copyright 2013 Atmel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef ATMEL_NAND_NFC_H
+#define ATMEL_NAND_NFC_H
+
+/*
+ * HSMC NFC registers
+ */
+#define ATMEL_HSMC_NFC_CFG 0x00 /* NFC Configuration Register */
+#define NFC_CFG_PAGESIZE (7 << 0)
+#define NFC_CFG_PAGESIZE_512 (0 << 0)
+#define NFC_CFG_PAGESIZE_1024 (1 << 0)
+#define NFC_CFG_PAGESIZE_2048 (2 << 0)
+#define NFC_CFG_PAGESIZE_4096 (3 << 0)
+#define NFC_CFG_PAGESIZE_8192 (4 << 0)
+#define NFC_CFG_WSPARE (1 << 8)
+#define NFC_CFG_RSPARE (1 << 9)
+#define NFC_CFG_NFC_DTOCYC (0xf << 16)
+#define NFC_CFG_NFC_DTOMUL (0x7 << 20)
+#define NFC_CFG_NFC_SPARESIZE (0x7f << 24)
+#define NFC_CFG_NFC_SPARESIZE_BIT_POS 24
+
+#define ATMEL_HSMC_NFC_CTRL 0x04 /* NFC Control Register */
+#define NFC_CTRL_ENABLE (1 << 0)
+#define NFC_CTRL_DISABLE (1 << 1)
+
+#define ATMEL_HSMC_NFC_SR 0x08 /* NFC Status Register */
+#define NFC_SR_XFR_DONE (1 << 16)
+#define NFC_SR_CMD_DONE (1 << 17)
+#define NFC_SR_RB_EDGE (1 << 24)
+
+#define ATMEL_HSMC_NFC_IER 0x0c
+#define ATMEL_HSMC_NFC_IDR 0x10
+#define ATMEL_HSMC_NFC_IMR 0x14
+#define ATMEL_HSMC_NFC_CYCLE0 0x18 /* NFC Address Cycle Zero */
+#define ATMEL_HSMC_NFC_ADDR_CYCLE0 (0xff)
+
+#define ATMEL_HSMC_NFC_BANK 0x1c /* NFC Bank Register */
+#define ATMEL_HSMC_NFC_BANK0 (0 << 0)
+#define ATMEL_HSMC_NFC_BANK1 (1 << 0)
+
+#define nfc_writel(addr, reg, value) \
+ writel((value), (addr) + ATMEL_HSMC_NFC_##reg)
+
+#define nfc_readl(addr, reg) \
+ readl_relaxed((addr) + ATMEL_HSMC_NFC_##reg)
+
+/*
+ * NFC Address Command definitions
+ */
+#define NFCADDR_CMD_CMD1 (0xff << 2) /* Command for Cycle 1 */
+#define NFCADDR_CMD_CMD1_BIT_POS 2
+#define NFCADDR_CMD_CMD2 (0xff << 10) /* Command for Cycle 2 */
+#define NFCADDR_CMD_CMD2_BIT_POS 10
+#define NFCADDR_CMD_VCMD2 (0x1 << 18) /* Valid Cycle 2 Command */
+#define NFCADDR_CMD_ACYCLE (0x7 << 19) /* Number of Address required */
+#define NFCADDR_CMD_ACYCLE_NONE (0x0 << 19)
+#define NFCADDR_CMD_ACYCLE_1 (0x1 << 19)
+#define NFCADDR_CMD_ACYCLE_2 (0x2 << 19)
+#define NFCADDR_CMD_ACYCLE_3 (0x3 << 19)
+#define NFCADDR_CMD_ACYCLE_4 (0x4 << 19)
+#define NFCADDR_CMD_ACYCLE_5 (0x5 << 19)
+#define NFCADDR_CMD_ACYCLE_BIT_POS 19
+#define NFCADDR_CMD_CSID (0x7 << 22) /* Chip Select Identifier */
+#define NFCADDR_CMD_CSID_0 (0x0 << 22)
+#define NFCADDR_CMD_CSID_1 (0x1 << 22)
+#define NFCADDR_CMD_CSID_2 (0x2 << 22)
+#define NFCADDR_CMD_CSID_3 (0x3 << 22)
+#define NFCADDR_CMD_CSID_4 (0x4 << 22)
+#define NFCADDR_CMD_CSID_5 (0x5 << 22)
+#define NFCADDR_CMD_CSID_6 (0x6 << 22)
+#define NFCADDR_CMD_CSID_7 (0x7 << 22)
+#define NFCADDR_CMD_DATAEN (0x1 << 25) /* Data Transfer Enable */
+#define NFCADDR_CMD_DATADIS (0x0 << 25) /* Data Transfer Disable */
+#define NFCADDR_CMD_NFCRD (0x0 << 26) /* NFC Read Enable */
+#define NFCADDR_CMD_NFCWR (0x1 << 26) /* NFC Write Enable */
+#define NFCADDR_CMD_NFCBUSY (0x1 << 27) /* NFC Busy */
+
+#define nfc_cmd_addr1234_writel(cmd, addr1234, nfc_base) \
+ writel((addr1234), (cmd) + nfc_base)
+
+#define nfc_cmd_readl(bitstatus, nfc_base) \
+ readl_relaxed((bitstatus) + nfc_base)
+
+#define NFC_TIME_OUT_MS 100
+#define NFC_SRAM_BANK1_OFFSET 0x1200
+
+#endif
diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c
index 217459d..ae8dd7c 100644
--- a/drivers/mtd/nand/au1550nd.c
+++ b/drivers/mtd/nand/au1550nd.c
@@ -411,7 +411,7 @@ static int au1550nd_probe(struct platform_device *pdev)
struct resource *r;
int ret, cs;
- pd = pdev->dev.platform_data;
+ pd = dev_get_platdata(&pdev->dev);
if (!pd) {
dev_err(&pdev->dev, "missing platform data\n");
return -ENODEV;
diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c
index 776df36..2c42e12 100644
--- a/drivers/mtd/nand/bf5xx_nand.c
+++ b/drivers/mtd/nand/bf5xx_nand.c
@@ -171,7 +171,7 @@ static struct bf5xx_nand_info *to_nand_info(struct platform_device *pdev)
static struct bf5xx_nand_platform *to_nand_plat(struct platform_device *pdev)
{
- return pdev->dev.platform_data;
+ return dev_get_platdata(&pdev->dev);
}
/*
@@ -671,8 +671,6 @@ static int bf5xx_nand_remove(struct platform_device *pdev)
{
struct bf5xx_nand_info *info = to_nand_info(pdev);
- platform_set_drvdata(pdev, NULL);
-
/* first thing we need to do is release all our mtds
* and their partitions, then go through freeing the
* resources used
@@ -832,7 +830,6 @@ static int bf5xx_nand_probe(struct platform_device *pdev)
out_err_nand_scan:
bf5xx_nand_dma_remove(info);
out_err_hw_init:
- platform_set_drvdata(pdev, NULL);
kfree(info);
out_err_kzalloc:
peripheral_free_list(bfin_nfc_pin_req);
diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c
index 2cdeab8..d469a9a 100644
--- a/drivers/mtd/nand/cs553x_nand.c
+++ b/drivers/mtd/nand/cs553x_nand.c
@@ -197,7 +197,7 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr)
}
/* Allocate memory for MTD device structure and private data */
- new_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
+ new_mtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
if (!new_mtd) {
printk(KERN_WARNING "Unable to allocate CS553X NAND MTD device structure.\n");
err = -ENOMEM;
@@ -207,10 +207,6 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr)
/* Get pointer to private data */
this = (struct nand_chip *)(&new_mtd[1]);
- /* Initialize structures */
- memset(new_mtd, 0, sizeof(struct mtd_info));
- memset(this, 0, sizeof(struct nand_chip));
-
/* Link the private data with the MTD structure */
new_mtd->priv = this;
new_mtd->owner = THIS_MODULE;
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index c3e15a5..b77a01e 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -530,7 +530,7 @@ MODULE_DEVICE_TABLE(of, davinci_nand_of_match);
static struct davinci_nand_pdata
*nand_davinci_get_pdata(struct platform_device *pdev)
{
- if (!pdev->dev.platform_data && pdev->dev.of_node) {
+ if (!dev_get_platdata(&pdev->dev) && pdev->dev.of_node) {
struct davinci_nand_pdata *pdata;
const char *mode;
u32 prop;
@@ -575,13 +575,13 @@ static struct davinci_nand_pdata
pdata->bbt_options = NAND_BBT_USE_FLASH;
}
- return pdev->dev.platform_data;
+ return dev_get_platdata(&pdev->dev);
}
#else
static struct davinci_nand_pdata
*nand_davinci_get_pdata(struct platform_device *pdev)
{
- return pdev->dev.platform_data;
+ return dev_get_platdata(&pdev->dev);
}
#endif
@@ -623,11 +623,14 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
goto err_nomem;
}
- vaddr = devm_request_and_ioremap(&pdev->dev, res1);
- base = devm_request_and_ioremap(&pdev->dev, res2);
- if (!vaddr || !base) {
- dev_err(&pdev->dev, "ioremap failed\n");
- ret = -EADDRNOTAVAIL;
+ vaddr = devm_ioremap_resource(&pdev->dev, res1);
+ if (IS_ERR(vaddr)) {
+ ret = PTR_ERR(vaddr);
+ goto err_ioremap;
+ }
+ base = devm_ioremap_resource(&pdev->dev, res2);
+ if (IS_ERR(base)) {
+ ret = PTR_ERR(base);
goto err_ioremap;
}
diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 0c8bb6b..2ed2bb3 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -1520,7 +1520,7 @@ int denali_init(struct denali_nand_info *denali)
* so just let controller do 15bit ECC for MLC and 8bit ECC for
* SLC if possible.
* */
- if (denali->nand.cellinfo & 0xc &&
+ if (denali->nand.cellinfo & NAND_CI_CELLTYPE_MSK &&
(denali->mtd.oobsize > (denali->bbtskipbytes +
ECC_15BITS * (denali->mtd.writesize /
ECC_SECTOR_SIZE)))) {
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index 81fa578..eaa3c29 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -46,13 +46,13 @@ static unsigned long __initdata doc_locations[] = {
0xfffd8000, 0xfffda000, 0xfffdc000, 0xfffde000,
0xfffe0000, 0xfffe2000, 0xfffe4000, 0xfffe6000,
0xfffe8000, 0xfffea000, 0xfffec000, 0xfffee000,
-#else /* CONFIG_MTD_DOCPROBE_HIGH */
+#else
0xc8000, 0xca000, 0xcc000, 0xce000,
0xd0000, 0xd2000, 0xd4000, 0xd6000,
0xd8000, 0xda000, 0xdc000, 0xde000,
0xe0000, 0xe2000, 0xe4000, 0xe6000,
0xe8000, 0xea000, 0xec000, 0xee000,
-#endif /* CONFIG_MTD_DOCPROBE_HIGH */
+#endif
#endif
0xffffffff };
diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c
index fa25e7a..548db23 100644
--- a/drivers/mtd/nand/docg4.c
+++ b/drivers/mtd/nand/docg4.c
@@ -1093,7 +1093,6 @@ static int docg4_block_markbad(struct mtd_info *mtd, loff_t ofs)
struct nand_chip *nand = mtd->priv;
struct docg4_priv *doc = nand->priv;
struct nand_bbt_descr *bbtd = nand->badblock_pattern;
- int block = (int)(ofs >> nand->bbt_erase_shift);
int page = (int)(ofs >> nand->page_shift);
uint32_t g4_addr = mtd_to_docg4_address(page, 0);
@@ -1108,9 +1107,6 @@ static int docg4_block_markbad(struct mtd_info *mtd, loff_t ofs)
if (buf == NULL)
return -ENOMEM;
- /* update bbt in memory */
- nand->bbt[block / 4] |= 0x01 << ((block & 0x03) * 2);
-
/* write bit-wise negation of pattern to oob buffer */
memset(nand->oob_poi, 0xff, mtd->oobsize);
for (i = 0; i < bbtd->len; i++)
@@ -1120,8 +1116,6 @@ static int docg4_block_markbad(struct mtd_info *mtd, loff_t ofs)
write_page_prologue(mtd, g4_addr);
docg4_write_page(mtd, nand, buf, 1);
ret = pageprog(mtd);
- if (!ret)
- mtd->ecc_stats.badblocks++;
kfree(buf);
@@ -1368,7 +1362,6 @@ static int __init probe_docg4(struct platform_device *pdev)
struct nand_chip *nand = mtd->priv;
struct docg4_priv *doc = nand->priv;
nand_release(mtd); /* deletes partitions and mtd devices */
- platform_set_drvdata(pdev, NULL);
free_bch(doc->bch);
kfree(mtd);
}
@@ -1380,7 +1373,6 @@ static int __exit cleanup_docg4(struct platform_device *pdev)
{
struct docg4_priv *doc = platform_get_drvdata(pdev);
nand_release(doc->mtd);
- platform_set_drvdata(pdev, NULL);
free_bch(doc->bch);
kfree(doc->mtd);
iounmap(doc->virtadr);
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index f1f7f12..317a771 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -823,7 +823,7 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
/* set up nand options */
chip->bbt_options = NAND_BBT_USE_FLASH;
-
+ chip->options = NAND_NO_SUBPAGE_WRITE;
if (ioread32be(&ifc->cspr_cs[priv->bank].cspr) & CSPR_PORT_SIZE_16) {
chip->read_byte = fsl_ifc_read_byte16;
@@ -908,7 +908,6 @@ static int fsl_ifc_chip_remove(struct fsl_ifc_mtd *priv)
ifc_nand_ctrl->chips[priv->bank] = NULL;
dev_set_drvdata(priv->dev, NULL);
- kfree(priv);
return 0;
}
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
index 911e243..3dc1a75 100644
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -889,6 +889,24 @@ static int fsmc_nand_probe_config_dt(struct platform_device *pdev,
if (of_get_property(np, "nand-skip-bbtscan", NULL))
pdata->options = NAND_SKIP_BBTSCAN;
+ pdata->nand_timings = devm_kzalloc(&pdev->dev,
+ sizeof(*pdata->nand_timings), GFP_KERNEL);
+ if (!pdata->nand_timings) {
+ dev_err(&pdev->dev, "no memory for nand_timing\n");
+ return -ENOMEM;
+ }
+ of_property_read_u8_array(np, "timings", (u8 *)pdata->nand_timings,
+ sizeof(*pdata->nand_timings));
+
+ /* Set default NAND bank to 0 */
+ pdata->bank = 0;
+ if (!of_property_read_u32(np, "bank", &val)) {
+ if (val > 3) {
+ dev_err(&pdev->dev, "invalid bank %u\n", val);
+ return -EINVAL;
+ }
+ pdata->bank = val;
+ }
return 0;
}
#else
@@ -940,9 +958,6 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_data");
- if (!res)
- return -EINVAL;
-
host->data_va = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(host->data_va))
return PTR_ERR(host->data_va);
@@ -950,25 +965,16 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
host->data_pa = (dma_addr_t)res->start;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_addr");
- if (!res)
- return -EINVAL;
-
host->addr_va = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(host->addr_va))
return PTR_ERR(host->addr_va);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_cmd");
- if (!res)
- return -EINVAL;
-
host->cmd_va = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(host->cmd_va))
return PTR_ERR(host->cmd_va);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fsmc_regs");
- if (!res)
- return -EINVAL;
-
host->regs_va = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(host->regs_va))
return PTR_ERR(host->regs_va);
@@ -1174,8 +1180,6 @@ static int fsmc_nand_remove(struct platform_device *pdev)
{
struct fsmc_nand_data *host = platform_get_drvdata(pdev);
- platform_set_drvdata(pdev, NULL);
-
if (host) {
nand_release(&host->mtd);
@@ -1190,7 +1194,7 @@ static int fsmc_nand_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int fsmc_nand_suspend(struct device *dev)
{
struct fsmc_nand_data *host = dev_get_drvdata(dev);
@@ -1210,9 +1214,9 @@ static int fsmc_nand_resume(struct device *dev)
}
return 0;
}
+#endif
static SIMPLE_DEV_PM_OPS(fsmc_nand_pm_ops, fsmc_nand_suspend, fsmc_nand_resume);
-#endif
#ifdef CONFIG_OF
static const struct of_device_id fsmc_nand_id_table[] = {
@@ -1229,9 +1233,7 @@ static struct platform_driver fsmc_nand_driver = {
.owner = THIS_MODULE,
.name = "fsmc-nand",
.of_match_table = of_match_ptr(fsmc_nand_id_table),
-#ifdef CONFIG_PM
.pm = &fsmc_nand_pm_ops,
-#endif
},
};
diff --git a/drivers/mtd/nand/gpio.c b/drivers/mtd/nand/gpio.c
index 89065dd..e826f89 100644
--- a/drivers/mtd/nand/gpio.c
+++ b/drivers/mtd/nand/gpio.c
@@ -17,6 +17,7 @@
*/
#include <linux/kernel.h>
+#include <linux/err.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
@@ -86,59 +87,11 @@ static void gpio_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
gpio_nand_dosync(gpiomtd);
}
-static void gpio_nand_writebuf(struct mtd_info *mtd, const u_char *buf, int len)
-{
- struct nand_chip *this = mtd->priv;
-
- iowrite8_rep(this->IO_ADDR_W, buf, len);
-}
-
-static void gpio_nand_readbuf(struct mtd_info *mtd, u_char *buf, int len)
-{
- struct nand_chip *this = mtd->priv;
-
- ioread8_rep(this->IO_ADDR_R, buf, len);
-}
-
-static void gpio_nand_writebuf16(struct mtd_info *mtd, const u_char *buf,
- int len)
-{
- struct nand_chip *this = mtd->priv;
-
- if (IS_ALIGNED((unsigned long)buf, 2)) {
- iowrite16_rep(this->IO_ADDR_W, buf, len>>1);
- } else {
- int i;
- unsigned short *ptr = (unsigned short *)buf;
-
- for (i = 0; i < len; i += 2, ptr++)
- writew(*ptr, this->IO_ADDR_W);
- }
-}
-
-static void gpio_nand_readbuf16(struct mtd_info *mtd, u_char *buf, int len)
-{
- struct nand_chip *this = mtd->priv;
-
- if (IS_ALIGNED((unsigned long)buf, 2)) {
- ioread16_rep(this->IO_ADDR_R, buf, len>>1);
- } else {
- int i;
- unsigned short *ptr = (unsigned short *)buf;
-
- for (i = 0; i < len; i += 2, ptr++)
- *ptr = readw(this->IO_ADDR_R);
- }
-}
-
static int gpio_nand_devready(struct mtd_info *mtd)
{
struct gpiomtd *gpiomtd = gpio_nand_getpriv(mtd);
- if (gpio_is_valid(gpiomtd->plat.gpio_rdy))
- return gpio_get_value(gpiomtd->plat.gpio_rdy);
-
- return 1;
+ return gpio_get_value(gpiomtd->plat.gpio_rdy);
}
#ifdef CONFIG_OF
@@ -153,6 +106,9 @@ static int gpio_nand_get_config_of(const struct device *dev,
{
u32 val;
+ if (!dev->of_node)
+ return -ENODEV;
+
if (!of_property_read_u32(dev->of_node, "bank-width", &val)) {
if (val == 2) {
plat->options |= NAND_BUSWIDTH_16;
@@ -211,8 +167,8 @@ static inline int gpio_nand_get_config(const struct device *dev,
if (!ret)
return ret;
- if (dev->platform_data) {
- memcpy(plat, dev->platform_data, sizeof(*plat));
+ if (dev_get_platdata(dev)) {
+ memcpy(plat, dev_get_platdata(dev), sizeof(*plat));
return 0;
}
@@ -230,145 +186,100 @@ gpio_nand_get_io_sync(struct platform_device *pdev)
return platform_get_resource(pdev, IORESOURCE_MEM, 1);
}
-static int gpio_nand_remove(struct platform_device *dev)
+static int gpio_nand_remove(struct platform_device *pdev)
{
- struct gpiomtd *gpiomtd = platform_get_drvdata(dev);
- struct resource *res;
+ struct gpiomtd *gpiomtd = platform_get_drvdata(pdev);
nand_release(&gpiomtd->mtd_info);
- res = gpio_nand_get_io_sync(dev);
- iounmap(gpiomtd->io_sync);
- if (res)
- release_mem_region(res->start, resource_size(res));
-
- res = platform_get_resource(dev, IORESOURCE_MEM, 0);
- iounmap(gpiomtd->nand_chip.IO_ADDR_R);
- release_mem_region(res->start, resource_size(res));
-
if (gpio_is_valid(gpiomtd->plat.gpio_nwp))
gpio_set_value(gpiomtd->plat.gpio_nwp, 0);
gpio_set_value(gpiomtd->plat.gpio_nce, 1);
- gpio_free(gpiomtd->plat.gpio_cle);
- gpio_free(gpiomtd->plat.gpio_ale);
- gpio_free(gpiomtd->plat.gpio_nce);
- if (gpio_is_valid(gpiomtd->plat.gpio_nwp))
- gpio_free(gpiomtd->plat.gpio_nwp);
- if (gpio_is_valid(gpiomtd->plat.gpio_rdy))
- gpio_free(gpiomtd->plat.gpio_rdy);
-
return 0;
}
-static void __iomem *request_and_remap(struct resource *res, size_t size,
- const char *name, int *err)
-{
- void __iomem *ptr;
-
- if (!request_mem_region(res->start, resource_size(res), name)) {
- *err = -EBUSY;
- return NULL;
- }
-
- ptr = ioremap(res->start, size);
- if (!ptr) {
- release_mem_region(res->start, resource_size(res));
- *err = -ENOMEM;
- }
- return ptr;
-}
-
-static int gpio_nand_probe(struct platform_device *dev)
+static int gpio_nand_probe(struct platform_device *pdev)
{
struct gpiomtd *gpiomtd;
- struct nand_chip *this;
- struct resource *res0, *res1;
+ struct nand_chip *chip;
+ struct resource *res;
struct mtd_part_parser_data ppdata = {};
int ret = 0;
- if (!dev->dev.of_node && !dev->dev.platform_data)
- return -EINVAL;
-
- res0 = platform_get_resource(dev, IORESOURCE_MEM, 0);
- if (!res0)
+ if (!pdev->dev.of_node && !dev_get_platdata(&pdev->dev))
return -EINVAL;
- gpiomtd = devm_kzalloc(&dev->dev, sizeof(*gpiomtd), GFP_KERNEL);
- if (gpiomtd == NULL) {
- dev_err(&dev->dev, "failed to create NAND MTD\n");
+ gpiomtd = devm_kzalloc(&pdev->dev, sizeof(*gpiomtd), GFP_KERNEL);
+ if (!gpiomtd) {
+ dev_err(&pdev->dev, "failed to create NAND MTD\n");
return -ENOMEM;
}
- this = &gpiomtd->nand_chip;
- this->IO_ADDR_R = request_and_remap(res0, 2, "NAND", &ret);
- if (!this->IO_ADDR_R) {
- dev_err(&dev->dev, "unable to map NAND\n");
- goto err_map;
- }
+ chip = &gpiomtd->nand_chip;
- res1 = gpio_nand_get_io_sync(dev);
- if (res1) {
- gpiomtd->io_sync = request_and_remap(res1, 4, "NAND sync", &ret);
- if (!gpiomtd->io_sync) {
- dev_err(&dev->dev, "unable to map sync NAND\n");
- goto err_sync;
- }
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ chip->IO_ADDR_R = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(chip->IO_ADDR_R))
+ return PTR_ERR(chip->IO_ADDR_R);
+
+ res = gpio_nand_get_io_sync(pdev);
+ if (res) {
+ gpiomtd->io_sync = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(gpiomtd->io_sync))
+ return PTR_ERR(gpiomtd->io_sync);
}
- ret = gpio_nand_get_config(&dev->dev, &gpiomtd->plat);
+ ret = gpio_nand_get_config(&pdev->dev, &gpiomtd->plat);
if (ret)
- goto err_nce;
+ return ret;
- ret = gpio_request(gpiomtd->plat.gpio_nce, "NAND NCE");
+ ret = devm_gpio_request(&pdev->dev, gpiomtd->plat.gpio_nce, "NAND NCE");
if (ret)
- goto err_nce;
+ return ret;
gpio_direction_output(gpiomtd->plat.gpio_nce, 1);
+
if (gpio_is_valid(gpiomtd->plat.gpio_nwp)) {
- ret = gpio_request(gpiomtd->plat.gpio_nwp, "NAND NWP");
+ ret = devm_gpio_request(&pdev->dev, gpiomtd->plat.gpio_nwp,
+ "NAND NWP");
if (ret)
- goto err_nwp;
- gpio_direction_output(gpiomtd->plat.gpio_nwp, 1);
+ return ret;
}
- ret = gpio_request(gpiomtd->plat.gpio_ale, "NAND ALE");
+
+ ret = devm_gpio_request(&pdev->dev, gpiomtd->plat.gpio_ale, "NAND ALE");
if (ret)
- goto err_ale;
+ return ret;
gpio_direction_output(gpiomtd->plat.gpio_ale, 0);
- ret = gpio_request(gpiomtd->plat.gpio_cle, "NAND CLE");
+
+ ret = devm_gpio_request(&pdev->dev, gpiomtd->plat.gpio_cle, "NAND CLE");
if (ret)
- goto err_cle;
+ return ret;
gpio_direction_output(gpiomtd->plat.gpio_cle, 0);
+
if (gpio_is_valid(gpiomtd->plat.gpio_rdy)) {
- ret = gpio_request(gpiomtd->plat.gpio_rdy, "NAND RDY");
+ ret = devm_gpio_request(&pdev->dev, gpiomtd->plat.gpio_rdy,
+ "NAND RDY");
if (ret)
- goto err_rdy;
+ return ret;
gpio_direction_input(gpiomtd->plat.gpio_rdy);
+ chip->dev_ready = gpio_nand_devready;
}
+ chip->IO_ADDR_W = chip->IO_ADDR_R;
+ chip->ecc.mode = NAND_ECC_SOFT;
+ chip->options = gpiomtd->plat.options;
+ chip->chip_delay = gpiomtd->plat.chip_delay;
+ chip->cmd_ctrl = gpio_nand_cmd_ctrl;
- this->IO_ADDR_W = this->IO_ADDR_R;
- this->ecc.mode = NAND_ECC_SOFT;
- this->options = gpiomtd->plat.options;
- this->chip_delay = gpiomtd->plat.chip_delay;
-
- /* install our routines */
- this->cmd_ctrl = gpio_nand_cmd_ctrl;
- this->dev_ready = gpio_nand_devready;
+ gpiomtd->mtd_info.priv = chip;
+ gpiomtd->mtd_info.owner = THIS_MODULE;
- if (this->options & NAND_BUSWIDTH_16) {
- this->read_buf = gpio_nand_readbuf16;
- this->write_buf = gpio_nand_writebuf16;
- } else {
- this->read_buf = gpio_nand_readbuf;
- this->write_buf = gpio_nand_writebuf;
- }
+ platform_set_drvdata(pdev, gpiomtd);
- /* set the mtd private data for the nand driver */
- gpiomtd->mtd_info.priv = this;
- gpiomtd->mtd_info.owner = THIS_MODULE;
+ if (gpio_is_valid(gpiomtd->plat.gpio_nwp))
+ gpio_direction_output(gpiomtd->plat.gpio_nwp, 1);
if (nand_scan(&gpiomtd->mtd_info, 1)) {
- dev_err(&dev->dev, "no nand chips found?\n");
ret = -ENXIO;
goto err_wp;
}
@@ -377,38 +288,17 @@ static int gpio_nand_probe(struct platform_device *dev)
gpiomtd->plat.adjust_parts(&gpiomtd->plat,
gpiomtd->mtd_info.size);
- ppdata.of_node = dev->dev.of_node;
+ ppdata.of_node = pdev->dev.of_node;
ret = mtd_device_parse_register(&gpiomtd->mtd_info, NULL, &ppdata,
gpiomtd->plat.parts,
gpiomtd->plat.num_parts);
- if (ret)
- goto err_wp;
- platform_set_drvdata(dev, gpiomtd);
-
- return 0;
+ if (!ret)
+ return 0;
err_wp:
if (gpio_is_valid(gpiomtd->plat.gpio_nwp))
gpio_set_value(gpiomtd->plat.gpio_nwp, 0);
- if (gpio_is_valid(gpiomtd->plat.gpio_rdy))
- gpio_free(gpiomtd->plat.gpio_rdy);
-err_rdy:
- gpio_free(gpiomtd->plat.gpio_cle);
-err_cle:
- gpio_free(gpiomtd->plat.gpio_ale);
-err_ale:
- if (gpio_is_valid(gpiomtd->plat.gpio_nwp))
- gpio_free(gpiomtd->plat.gpio_nwp);
-err_nwp:
- gpio_free(gpiomtd->plat.gpio_nce);
-err_nce:
- iounmap(gpiomtd->io_sync);
- if (res1)
- release_mem_region(res1->start, resource_size(res1));
-err_sync:
- iounmap(gpiomtd->nand_chip.IO_ADDR_R);
- release_mem_region(res0->start, resource_size(res0));
-err_map:
+
return ret;
}
@@ -417,6 +307,7 @@ static struct platform_driver gpio_nand_driver = {
.remove = gpio_nand_remove,
.driver = {
.name = "gpio-nand",
+ .owner = THIS_MODULE,
.of_match_table = of_match_ptr(gpio_nand_id_table),
},
};
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 25ecfa1..59ab069 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -26,7 +26,6 @@
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/mtd/partitions.h>
-#include <linux/pinctrl/consumer.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_mtd.h>
@@ -112,7 +111,131 @@ static inline bool gpmi_check_ecc(struct gpmi_nand_data *this)
return true;
}
-int common_nfc_set_geometry(struct gpmi_nand_data *this)
+/*
+ * If we can get the ECC information from the nand chip, we do not
+ * need to calculate them ourselves.
+ *
+ * We may have available oob space in this case.
+ */
+static bool set_geometry_by_ecc_info(struct gpmi_nand_data *this)
+{
+ struct bch_geometry *geo = &this->bch_geometry;
+ struct mtd_info *mtd = &this->mtd;
+ struct nand_chip *chip = mtd->priv;
+ struct nand_oobfree *of = gpmi_hw_ecclayout.oobfree;
+ unsigned int block_mark_bit_offset;
+
+ if (!(chip->ecc_strength_ds > 0 && chip->ecc_step_ds > 0))
+ return false;
+
+ switch (chip->ecc_step_ds) {
+ case SZ_512:
+ geo->gf_len = 13;
+ break;
+ case SZ_1K:
+ geo->gf_len = 14;
+ break;
+ default:
+ dev_err(this->dev,
+ "unsupported nand chip. ecc bits : %d, ecc size : %d\n",
+ chip->ecc_strength_ds, chip->ecc_step_ds);
+ return false;
+ }
+ geo->ecc_chunk_size = chip->ecc_step_ds;
+ geo->ecc_strength = round_up(chip->ecc_strength_ds, 2);
+ if (!gpmi_check_ecc(this))
+ return false;
+
+ /* Keep the C >= O */
+ if (geo->ecc_chunk_size < mtd->oobsize) {
+ dev_err(this->dev,
+ "unsupported nand chip. ecc size: %d, oob size : %d\n",
+ chip->ecc_step_ds, mtd->oobsize);
+ return false;
+ }
+
+ /* The default value, see comment in the legacy_set_geometry(). */
+ geo->metadata_size = 10;
+
+ geo->ecc_chunk_count = mtd->writesize / geo->ecc_chunk_size;
+
+ /*
+ * Now, the NAND chip with 2K page(data chunk is 512byte) shows below:
+ *
+ * | P |
+ * |<----------------------------------------------------->|
+ * | |
+ * | (Block Mark) |
+ * | P' | | | |
+ * |<-------------------------------------------->| D | | O' |
+ * | |<---->| |<--->|
+ * V V V V V
+ * +---+----------+-+----------+-+----------+-+----------+-+-----+
+ * | M | data |E| data |E| data |E| data |E| |
+ * +---+----------+-+----------+-+----------+-+----------+-+-----+
+ * ^ ^
+ * | O |
+ * |<------------>|
+ * | |
+ *
+ * P : the page size for BCH module.
+ * E : The ECC strength.
+ * G : the length of Galois Field.
+ * N : The chunk count of per page.
+ * M : the metasize of per page.
+ * C : the ecc chunk size, aka the "data" above.
+ * P': the nand chip's page size.
+ * O : the nand chip's oob size.
+ * O': the free oob.
+ *
+ * The formula for P is :
+ *
+ * E * G * N
+ * P = ------------ + P' + M
+ * 8
+ *
+ * The position of block mark moves forward in the ECC-based view
+ * of page, and the delta is:
+ *
+ * E * G * (N - 1)
+ * D = (---------------- + M)
+ * 8
+ *
+ * Please see the comment in legacy_set_geometry().
+ * With the condition C >= O , we still can get same result.
+ * So the bit position of the physical block mark within the ECC-based
+ * view of the page is :
+ * (P' - D) * 8
+ */
+ geo->page_size = mtd->writesize + geo->metadata_size +
+ (geo->gf_len * geo->ecc_strength * geo->ecc_chunk_count) / 8;
+
+ /* The available oob size we have. */
+ if (geo->page_size < mtd->writesize + mtd->oobsize) {
+ of->offset = geo->page_size - mtd->writesize;
+ of->length = mtd->oobsize - of->offset;
+ }
+
+ geo->payload_size = mtd->writesize;
+
+ geo->auxiliary_status_offset = ALIGN(geo->metadata_size, 4);
+ geo->auxiliary_size = ALIGN(geo->metadata_size, 4)
+ + ALIGN(geo->ecc_chunk_count, 4);
+
+ if (!this->swap_block_mark)
+ return true;
+
+ /* For bit swap. */
+ block_mark_bit_offset = mtd->writesize * 8 -
+ (geo->ecc_strength * geo->gf_len * (geo->ecc_chunk_count - 1)
+ + geo->metadata_size * 8);
+
+ geo->block_mark_byte_offset = block_mark_bit_offset / 8;
+ geo->block_mark_bit_offset = block_mark_bit_offset % 8;
+ return true;
+}
+
+static int legacy_set_geometry(struct gpmi_nand_data *this)
{
struct bch_geometry *geo = &this->bch_geometry;
struct mtd_info *mtd = &this->mtd;
@@ -224,6 +347,11 @@ int common_nfc_set_geometry(struct gpmi_nand_data *this)
return 0;
}
+int common_nfc_set_geometry(struct gpmi_nand_data *this)
+{
+ return set_geometry_by_ecc_info(this) ? 0 : legacy_set_geometry(this);
+}
+
struct dma_chan *get_dma_chan(struct gpmi_nand_data *this)
{
int chipnr = this->current_chip;
@@ -355,7 +483,7 @@ static int acquire_register_block(struct gpmi_nand_data *this,
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, res_name);
if (!r) {
pr_err("Can't get resource for %s\n", res_name);
- return -ENXIO;
+ return -ENODEV;
}
p = ioremap(r->start, resource_size(r));
@@ -396,7 +524,7 @@ static int acquire_bch_irq(struct gpmi_nand_data *this, irq_handler_t irq_h)
r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, res_name);
if (!r) {
pr_err("Can't get resource for %s\n", res_name);
- return -ENXIO;
+ return -ENODEV;
}
err = request_irq(r->start, irq_h, 0, res_name, this);
@@ -473,12 +601,14 @@ static int gpmi_get_clks(struct gpmi_nand_data *this)
struct resources *r = &this->resources;
char **extra_clks = NULL;
struct clk *clk;
- int i;
+ int err, i;
/* The main clock is stored in the first. */
r->clock[0] = clk_get(this->dev, "gpmi_io");
- if (IS_ERR(r->clock[0]))
+ if (IS_ERR(r->clock[0])) {
+ err = PTR_ERR(r->clock[0]);
goto err_clock;
+ }
/* Get extra clocks */
if (GPMI_IS_MX6Q(this))
@@ -491,8 +621,10 @@ static int gpmi_get_clks(struct gpmi_nand_data *this)
break;
clk = clk_get(this->dev, extra_clks[i - 1]);
- if (IS_ERR(clk))
+ if (IS_ERR(clk)) {
+ err = PTR_ERR(clk);
goto err_clock;
+ }
r->clock[i] = clk;
}
@@ -511,12 +643,11 @@ static int gpmi_get_clks(struct gpmi_nand_data *this)
err_clock:
dev_dbg(this->dev, "failed in finding the clocks.\n");
gpmi_put_clks(this);
- return -ENOMEM;
+ return err;
}
static int acquire_resources(struct gpmi_nand_data *this)
{
- struct pinctrl *pinctrl;
int ret;
ret = acquire_register_block(this, GPMI_NAND_GPMI_REGS_ADDR_RES_NAME);
@@ -535,19 +666,12 @@ static int acquire_resources(struct gpmi_nand_data *this)
if (ret)
goto exit_dma_channels;
- pinctrl = devm_pinctrl_get_select_default(&this->pdev->dev);
- if (IS_ERR(pinctrl)) {
- ret = PTR_ERR(pinctrl);
- goto exit_pin;
- }
-
ret = gpmi_get_clks(this);
if (ret)
goto exit_clock;
return 0;
exit_clock:
-exit_pin:
release_dma_channels(this);
exit_dma_channels:
release_bch_irq(this);
@@ -1153,43 +1277,31 @@ static int gpmi_block_markbad(struct mtd_info *mtd, loff_t ofs)
{
struct nand_chip *chip = mtd->priv;
struct gpmi_nand_data *this = chip->priv;
- int block, ret = 0;
+ int ret = 0;
uint8_t *block_mark;
int column, page, status, chipnr;
- /* Get block number */
- block = (int)(ofs >> chip->bbt_erase_shift);
- if (chip->bbt)
- chip->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1);
+ chipnr = (int)(ofs >> chip->chip_shift);
+ chip->select_chip(mtd, chipnr);
- /* Do we have a flash based bad block table ? */
- if (chip->bbt_options & NAND_BBT_USE_FLASH)
- ret = nand_update_bbt(mtd, ofs);
- else {
- chipnr = (int)(ofs >> chip->chip_shift);
- chip->select_chip(mtd, chipnr);
+ column = this->swap_block_mark ? mtd->writesize : 0;
- column = this->swap_block_mark ? mtd->writesize : 0;
+ /* Write the block mark. */
+ block_mark = this->data_buffer_dma;
+ block_mark[0] = 0; /* bad block marker */
- /* Write the block mark. */
- block_mark = this->data_buffer_dma;
- block_mark[0] = 0; /* bad block marker */
+ /* Shift to get page */
+ page = (int)(ofs >> chip->page_shift);
- /* Shift to get page */
- page = (int)(ofs >> chip->page_shift);
+ chip->cmdfunc(mtd, NAND_CMD_SEQIN, column, page);
+ chip->write_buf(mtd, block_mark, 1);
+ chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
- chip->cmdfunc(mtd, NAND_CMD_SEQIN, column, page);
- chip->write_buf(mtd, block_mark, 1);
- chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+ status = chip->waitfunc(mtd, chip);
+ if (status & NAND_STATUS_FAIL)
+ ret = -EIO;
- status = chip->waitfunc(mtd, chip);
- if (status & NAND_STATUS_FAIL)
- ret = -EIO;
-
- chip->select_chip(mtd, -1);
- }
- if (!ret)
- mtd->ecc_stats.badblocks++;
+ chip->select_chip(mtd, -1);
return ret;
}
@@ -1469,19 +1581,22 @@ static int gpmi_pre_bbt_scan(struct gpmi_nand_data *this)
if (ret)
return ret;
- /* Adjust the ECC strength according to the chip. */
- this->nand.ecc.strength = this->bch_geometry.ecc_strength;
- this->mtd.ecc_strength = this->bch_geometry.ecc_strength;
- this->mtd.bitflip_threshold = this->bch_geometry.ecc_strength;
-
/* NAND boot init, depends on the gpmi_set_geometry(). */
return nand_boot_init(this);
}
-static int gpmi_scan_bbt(struct mtd_info *mtd)
+static void gpmi_nfc_exit(struct gpmi_nand_data *this)
{
+ nand_release(&this->mtd);
+ gpmi_free_dma_buffer(this);
+}
+
+static int gpmi_init_last(struct gpmi_nand_data *this)
+{
+ struct mtd_info *mtd = &this->mtd;
struct nand_chip *chip = mtd->priv;
- struct gpmi_nand_data *this = chip->priv;
+ struct nand_ecc_ctrl *ecc = &chip->ecc;
+ struct bch_geometry *bch_geo = &this->bch_geometry;
int ret;
/* Prepare for the BBT scan. */
@@ -1489,6 +1604,16 @@ static int gpmi_scan_bbt(struct mtd_info *mtd)
if (ret)
return ret;
+ /* Init the nand_ecc_ctrl{} */
+ ecc->read_page = gpmi_ecc_read_page;
+ ecc->write_page = gpmi_ecc_write_page;
+ ecc->read_oob = gpmi_ecc_read_oob;
+ ecc->write_oob = gpmi_ecc_write_oob;
+ ecc->mode = NAND_ECC_HW;
+ ecc->size = bch_geo->ecc_chunk_size;
+ ecc->strength = bch_geo->ecc_strength;
+ ecc->layout = &gpmi_hw_ecclayout;
+
/*
* Can we enable the extra features? such as EDO or Sync mode.
*
@@ -1497,14 +1622,7 @@ static int gpmi_scan_bbt(struct mtd_info *mtd)
*/
gpmi_extra_init(this);
- /* use the default BBT implementation */
- return nand_default_bbt(mtd);
-}
-
-static void gpmi_nfc_exit(struct gpmi_nand_data *this)
-{
- nand_release(&this->mtd);
- gpmi_free_dma_buffer(this);
+ return 0;
}
static int gpmi_nfc_init(struct gpmi_nand_data *this)
@@ -1530,33 +1648,33 @@ static int gpmi_nfc_init(struct gpmi_nand_data *this)
chip->read_byte = gpmi_read_byte;
chip->read_buf = gpmi_read_buf;
chip->write_buf = gpmi_write_buf;
- chip->ecc.read_page = gpmi_ecc_read_page;
- chip->ecc.write_page = gpmi_ecc_write_page;
- chip->ecc.read_oob = gpmi_ecc_read_oob;
- chip->ecc.write_oob = gpmi_ecc_write_oob;
- chip->scan_bbt = gpmi_scan_bbt;
chip->badblock_pattern = &gpmi_bbt_descr;
chip->block_markbad = gpmi_block_markbad;
chip->options |= NAND_NO_SUBPAGE_WRITE;
- chip->ecc.mode = NAND_ECC_HW;
- chip->ecc.size = 1;
- chip->ecc.strength = 8;
- chip->ecc.layout = &gpmi_hw_ecclayout;
if (of_get_nand_on_flash_bbt(this->dev->of_node))
chip->bbt_options |= NAND_BBT_USE_FLASH | NAND_BBT_NO_OOB;
- /* Allocate a temporary DMA buffer for reading ID in the nand_scan() */
+ /*
+ * Allocate a temporary DMA buffer for reading ID in the
+ * nand_scan_ident().
+ */
this->bch_geometry.payload_size = 1024;
this->bch_geometry.auxiliary_size = 128;
ret = gpmi_alloc_dma_buffer(this);
if (ret)
goto err_out;
- ret = nand_scan(mtd, 1);
- if (ret) {
- pr_err("Chip scan failed\n");
+ ret = nand_scan_ident(mtd, 1, NULL);
+ if (ret)
+ goto err_out;
+
+ ret = gpmi_init_last(this);
+ if (ret)
+ goto err_out;
+
+ ret = nand_scan_tail(mtd);
+ if (ret)
goto err_out;
- }
ppdata.of_node = this->pdev->dev.of_node;
ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
@@ -1601,7 +1719,7 @@ static int gpmi_nand_probe(struct platform_device *pdev)
pdev->id_entry = of_id->data;
} else {
pr_err("Failed to find the right device id.\n");
- return -ENOMEM;
+ return -ENODEV;
}
this = kzalloc(sizeof(*this), GFP_KERNEL);
@@ -1633,7 +1751,6 @@ static int gpmi_nand_probe(struct platform_device *pdev)
exit_nfc_init:
release_resources(this);
exit_acquire_resources:
- platform_set_drvdata(pdev, NULL);
dev_err(this->dev, "driver registration failed: %d\n", ret);
kfree(this);
@@ -1646,7 +1763,6 @@ static int gpmi_nand_remove(struct platform_device *pdev)
gpmi_nfc_exit(this);
release_resources(this);
- platform_set_drvdata(pdev, NULL);
kfree(this);
return 0;
}
diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c
index b76460e..a264b88 100644
--- a/drivers/mtd/nand/jz4740_nand.c
+++ b/drivers/mtd/nand/jz4740_nand.c
@@ -411,7 +411,7 @@ static int jz_nand_probe(struct platform_device *pdev)
struct jz_nand *nand;
struct nand_chip *chip;
struct mtd_info *mtd;
- struct jz_nand_platform_data *pdata = pdev->dev.platform_data;
+ struct jz_nand_platform_data *pdata = dev_get_platdata(&pdev->dev);
size_t chipnr, bank_idx;
uint8_t nand_maf_id = 0, nand_dev_id = 0;
@@ -538,7 +538,6 @@ err_unclaim_banks:
err_gpio_busy:
if (pdata && gpio_is_valid(pdata->busy_gpio))
gpio_free(pdata->busy_gpio);
- platform_set_drvdata(pdev, NULL);
err_iounmap_mmio:
jz_nand_iounmap_resource(nand->mem, nand->base);
err_free:
@@ -549,7 +548,7 @@ err_free:
static int jz_nand_remove(struct platform_device *pdev)
{
struct jz_nand *nand = platform_get_drvdata(pdev);
- struct jz_nand_platform_data *pdata = pdev->dev.platform_data;
+ struct jz_nand_platform_data *pdata = dev_get_platdata(&pdev->dev);
size_t i;
nand_release(&nand->mtd);
@@ -570,7 +569,6 @@ static int jz_nand_remove(struct platform_device *pdev)
jz_nand_iounmap_resource(nand->mem, nand->base);
- platform_set_drvdata(pdev, NULL);
kfree(nand);
return 0;
diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c
index fd1df5e..f4dd2a8 100644
--- a/drivers/mtd/nand/lpc32xx_mlc.c
+++ b/drivers/mtd/nand/lpc32xx_mlc.c
@@ -696,7 +696,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
}
lpc32xx_wp_disable(host);
- host->pdata = pdev->dev.platform_data;
+ host->pdata = dev_get_platdata(&pdev->dev);
nand_chip->priv = host; /* link the private data structures */
mtd->priv = nand_chip;
@@ -828,7 +828,6 @@ err_exit3:
err_exit2:
clk_disable(host->clk);
clk_put(host->clk);
- platform_set_drvdata(pdev, NULL);
err_exit1:
lpc32xx_wp_enable(host);
gpio_free(host->ncfg->wp_gpio);
@@ -851,7 +850,6 @@ static int lpc32xx_nand_remove(struct platform_device *pdev)
clk_disable(host->clk);
clk_put(host->clk);
- platform_set_drvdata(pdev, NULL);
lpc32xx_wp_enable(host);
gpio_free(host->ncfg->wp_gpio);
diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c
index be94ed5..add7570 100644
--- a/drivers/mtd/nand/lpc32xx_slc.c
+++ b/drivers/mtd/nand/lpc32xx_slc.c
@@ -798,7 +798,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
}
lpc32xx_wp_disable(host);
- host->pdata = pdev->dev.platform_data;
+ host->pdata = dev_get_platdata(&pdev->dev);
mtd = &host->mtd;
chip = &host->nand_chip;
@@ -936,7 +936,6 @@ err_exit3:
err_exit2:
clk_disable(host->clk);
clk_put(host->clk);
- platform_set_drvdata(pdev, NULL);
err_exit1:
lpc32xx_wp_enable(host);
gpio_free(host->ncfg->wp_gpio);
@@ -963,7 +962,6 @@ static int lpc32xx_nand_remove(struct platform_device *pdev)
clk_disable(host->clk);
clk_put(host->clk);
- platform_set_drvdata(pdev, NULL);
lpc32xx_wp_enable(host);
gpio_free(host->ncfg->wp_gpio);
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 07e5784..ce8242b 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -266,7 +266,7 @@ static struct nand_ecclayout nandv2_hw_eccoob_4k = {
}
};
-static const char const *part_probes[] = {
+static const char * const part_probes[] = {
"cmdlinepart", "RedBoot", "ofpart", NULL };
static void memcpy32_fromio(void *trg, const void __iomem *src, size_t size)
@@ -1432,7 +1432,8 @@ static int mxcnd_probe(struct platform_device *pdev)
err = mxcnd_probe_dt(host);
if (err > 0) {
- struct mxc_nand_platform_data *pdata = pdev->dev.platform_data;
+ struct mxc_nand_platform_data *pdata =
+ dev_get_platdata(&pdev->dev);
if (pdata) {
host->pdata = *pdata;
host->devtype_data = (struct mxc_nand_devtype_data *)
@@ -1446,8 +1447,6 @@ static int mxcnd_probe(struct platform_device *pdev)
if (host->devtype_data->needs_ip) {
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENODEV;
host->regs_ip = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(host->regs_ip))
return PTR_ERR(host->regs_ip);
@@ -1457,9 +1456,6 @@ static int mxcnd_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
}
- if (!res)
- return -ENODEV;
-
host->base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(host->base))
return PTR_ERR(host->base);
@@ -1578,8 +1574,6 @@ static int mxcnd_remove(struct platform_device *pdev)
{
struct mxc_nand_host *host = platform_get_drvdata(pdev);
- platform_set_drvdata(pdev, NULL);
-
nand_release(&host->mtd);
return 0;
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index dfcd0a5..7ed4841 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -108,13 +108,13 @@ static int check_offs_len(struct mtd_info *mtd,
int ret = 0;
/* Start address must align on block boundary */
- if (ofs & ((1 << chip->phys_erase_shift) - 1)) {
+ if (ofs & ((1ULL << chip->phys_erase_shift) - 1)) {
pr_debug("%s: unaligned address\n", __func__);
ret = -EINVAL;
}
/* Length must align on block boundary */
- if (len & ((1 << chip->phys_erase_shift) - 1)) {
+ if (len & ((1ULL << chip->phys_erase_shift) - 1)) {
pr_debug("%s: length not block aligned\n", __func__);
ret = -EINVAL;
}
@@ -211,11 +211,9 @@ static void nand_select_chip(struct mtd_info *mtd, int chipnr)
*/
static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
{
- int i;
struct nand_chip *chip = mtd->priv;
- for (i = 0; i < len; i++)
- writeb(buf[i], chip->IO_ADDR_W);
+ iowrite8_rep(chip->IO_ADDR_W, buf, len);
}
/**
@@ -228,11 +226,9 @@ static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
*/
static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
{
- int i;
struct nand_chip *chip = mtd->priv;
- for (i = 0; i < len; i++)
- buf[i] = readb(chip->IO_ADDR_R);
+ ioread8_rep(chip->IO_ADDR_R, buf, len);
}
/**
@@ -245,14 +241,10 @@ static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
*/
static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
{
- int i;
struct nand_chip *chip = mtd->priv;
u16 *p = (u16 *) buf;
- len >>= 1;
-
- for (i = 0; i < len; i++)
- writew(p[i], chip->IO_ADDR_W);
+ iowrite16_rep(chip->IO_ADDR_W, p, len >> 1);
}
/**
@@ -265,13 +257,10 @@ static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
*/
static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len)
{
- int i;
struct nand_chip *chip = mtd->priv;
u16 *p = (u16 *) buf;
- len >>= 1;
- for (i = 0; i < len; i++)
- p[i] = readw(chip->IO_ADDR_R);
+ ioread16_rep(chip->IO_ADDR_R, p, len >> 1);
}
/**
@@ -335,80 +324,88 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
}
/**
- * nand_default_block_markbad - [DEFAULT] mark a block bad
+ * nand_default_block_markbad - [DEFAULT] mark a block bad via bad block marker
* @mtd: MTD device structure
* @ofs: offset from device start
*
* This is the default implementation, which can be overridden by a hardware
- * specific driver. We try operations in the following order, according to our
- * bbt_options (NAND_BBT_NO_OOB_BBM and NAND_BBT_USE_FLASH):
+ * specific driver. It provides the details for writing a bad block marker to a
+ * block.
+ */
+static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
+{
+ struct nand_chip *chip = mtd->priv;
+ struct mtd_oob_ops ops;
+ uint8_t buf[2] = { 0, 0 };
+ int ret = 0, res, i = 0;
+
+ ops.datbuf = NULL;
+ ops.oobbuf = buf;
+ ops.ooboffs = chip->badblockpos;
+ if (chip->options & NAND_BUSWIDTH_16) {
+ ops.ooboffs &= ~0x01;
+ ops.len = ops.ooblen = 2;
+ } else {
+ ops.len = ops.ooblen = 1;
+ }
+ ops.mode = MTD_OPS_PLACE_OOB;
+
+ /* Write to first/last page(s) if necessary */
+ if (chip->bbt_options & NAND_BBT_SCANLASTPAGE)
+ ofs += mtd->erasesize - mtd->writesize;
+ do {
+ res = nand_do_write_oob(mtd, ofs, &ops);
+ if (!ret)
+ ret = res;
+
+ i++;
+ ofs += mtd->writesize;
+ } while ((chip->bbt_options & NAND_BBT_SCAN2NDPAGE) && i < 2);
+
+ return ret;
+}
+
+/**
+ * nand_block_markbad_lowlevel - mark a block bad
+ * @mtd: MTD device structure
+ * @ofs: offset from device start
+ *
+ * This function performs the generic NAND bad block marking steps (i.e., bad
+ * block table(s) and/or marker(s)). We only allow the hardware driver to
+ * specify how to write bad block markers to OOB (chip->block_markbad).
+ *
+ * We try operations in the following order:
* (1) erase the affected block, to allow OOB marker to be written cleanly
- * (2) update in-memory BBT
- * (3) write bad block marker to OOB area of affected block
- * (4) update flash-based BBT
- * Note that we retain the first error encountered in (3) or (4), finish the
+ * (2) write bad block marker to OOB area of affected block (unless flag
+ * NAND_BBT_NO_OOB_BBM is present)
+ * (3) update the BBT
+ * Note that we retain the first error encountered in (2) or (3), finish the
* procedures, and dump the error in the end.
*/
-static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
+static int nand_block_markbad_lowlevel(struct mtd_info *mtd, loff_t ofs)
{
struct nand_chip *chip = mtd->priv;
- uint8_t buf[2] = { 0, 0 };
- int block, res, ret = 0, i = 0;
- int write_oob = !(chip->bbt_options & NAND_BBT_NO_OOB_BBM);
+ int res, ret = 0;
- if (write_oob) {
+ if (!(chip->bbt_options & NAND_BBT_NO_OOB_BBM)) {
struct erase_info einfo;
/* Attempt erase before marking OOB */
memset(&einfo, 0, sizeof(einfo));
einfo.mtd = mtd;
einfo.addr = ofs;
- einfo.len = 1 << chip->phys_erase_shift;
+ einfo.len = 1ULL << chip->phys_erase_shift;
nand_erase_nand(mtd, &einfo, 0);
- }
-
- /* Get block number */
- block = (int)(ofs >> chip->bbt_erase_shift);
- /* Mark block bad in memory-based BBT */
- if (chip->bbt)
- chip->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1);
-
- /* Write bad block marker to OOB */
- if (write_oob) {
- struct mtd_oob_ops ops;
- loff_t wr_ofs = ofs;
+ /* Write bad block marker to OOB */
nand_get_device(mtd, FL_WRITING);
-
- ops.datbuf = NULL;
- ops.oobbuf = buf;
- ops.ooboffs = chip->badblockpos;
- if (chip->options & NAND_BUSWIDTH_16) {
- ops.ooboffs &= ~0x01;
- ops.len = ops.ooblen = 2;
- } else {
- ops.len = ops.ooblen = 1;
- }
- ops.mode = MTD_OPS_PLACE_OOB;
-
- /* Write to first/last page(s) if necessary */
- if (chip->bbt_options & NAND_BBT_SCANLASTPAGE)
- wr_ofs += mtd->erasesize - mtd->writesize;
- do {
- res = nand_do_write_oob(mtd, wr_ofs, &ops);
- if (!ret)
- ret = res;
-
- i++;
- wr_ofs += mtd->writesize;
- } while ((chip->bbt_options & NAND_BBT_SCAN2NDPAGE) && i < 2);
-
+ ret = chip->block_markbad(mtd, ofs);
nand_release_device(mtd);
}
- /* Update flash-based bad block table */
- if (chip->bbt_options & NAND_BBT_USE_FLASH) {
- res = nand_update_bbt(mtd, ofs);
+ /* Mark block bad in BBT */
+ if (chip->bbt) {
+ res = nand_markbad_bbt(mtd, ofs);
if (!ret)
ret = res;
}
@@ -1983,13 +1980,14 @@ static int nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
* nand_write_subpage_hwecc - [REPLACABLE] hardware ECC based subpage write
* @mtd: mtd info structure
* @chip: nand chip info structure
- * @column: column address of subpage within the page
+ * @offset: column address of subpage within the page
* @data_len: data length
+ * @buf: data buffer
* @oob_required: must write chip->oob_poi to OOB
*/
static int nand_write_subpage_hwecc(struct mtd_info *mtd,
struct nand_chip *chip, uint32_t offset,
- uint32_t data_len, const uint8_t *data_buf,
+ uint32_t data_len, const uint8_t *buf,
int oob_required)
{
uint8_t *oob_buf = chip->oob_poi;
@@ -2008,20 +2006,20 @@ static int nand_write_subpage_hwecc(struct mtd_info *mtd,
chip->ecc.hwctl(mtd, NAND_ECC_WRITE);
/* write data (untouched subpages already masked by 0xFF) */
- chip->write_buf(mtd, data_buf, ecc_size);
+ chip->write_buf(mtd, buf, ecc_size);
/* mask ECC of un-touched subpages by padding 0xFF */
if ((step < start_step) || (step > end_step))
memset(ecc_calc, 0xff, ecc_bytes);
else
- chip->ecc.calculate(mtd, data_buf, ecc_calc);
+ chip->ecc.calculate(mtd, buf, ecc_calc);
/* mask OOB of un-touched subpages by padding 0xFF */
/* if oob_required, preserve OOB metadata of written subpage */
if (!oob_required || (step < start_step) || (step > end_step))
memset(oob_buf, 0xff, oob_bytes);
- data_buf += ecc_size;
+ buf += ecc_size;
ecc_calc += ecc_bytes;
oob_buf += oob_bytes;
}
@@ -2633,7 +2631,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
}
/* Increment page address and decrement length */
- len -= (1 << chip->phys_erase_shift);
+ len -= (1ULL << chip->phys_erase_shift);
page += pages_per_block;
/* Check, if we cross a chip boundary */
@@ -2694,7 +2692,6 @@ static int nand_block_isbad(struct mtd_info *mtd, loff_t offs)
*/
static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs)
{
- struct nand_chip *chip = mtd->priv;
int ret;
ret = nand_block_isbad(mtd, ofs);
@@ -2705,7 +2702,7 @@ static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs)
return ret;
}
- return chip->block_markbad(mtd, ofs);
+ return nand_block_markbad_lowlevel(mtd, ofs);
}
/**
@@ -2720,7 +2717,9 @@ static int nand_onfi_set_features(struct mtd_info *mtd, struct nand_chip *chip,
{
int status;
- if (!chip->onfi_version)
+ if (!chip->onfi_version ||
+ !(le16_to_cpu(chip->onfi_params.opt_cmd)
+ & ONFI_OPT_CMD_SET_GET_FEATURES))
return -EINVAL;
chip->cmdfunc(mtd, NAND_CMD_SET_FEATURES, addr, -1);
@@ -2741,7 +2740,9 @@ static int nand_onfi_set_features(struct mtd_info *mtd, struct nand_chip *chip,
static int nand_onfi_get_features(struct mtd_info *mtd, struct nand_chip *chip,
int addr, uint8_t *subfeature_param)
{
- if (!chip->onfi_version)
+ if (!chip->onfi_version ||
+ !(le16_to_cpu(chip->onfi_params.opt_cmd)
+ & ONFI_OPT_CMD_SET_GET_FEATURES))
return -EINVAL;
/* clear the sub feature parameters */
@@ -2793,7 +2794,15 @@ static void nand_set_defaults(struct nand_chip *chip, int busw)
if (!chip->select_chip)
chip->select_chip = nand_select_chip;
- if (!chip->read_byte)
+
+ /* set for ONFI nand */
+ if (!chip->onfi_set_features)
+ chip->onfi_set_features = nand_onfi_set_features;
+ if (!chip->onfi_get_features)
+ chip->onfi_get_features = nand_onfi_get_features;
+
+ /* If called twice, pointers that depend on busw may need to be reset */
+ if (!chip->read_byte || chip->read_byte == nand_read_byte)
chip->read_byte = busw ? nand_read_byte16 : nand_read_byte;
if (!chip->read_word)
chip->read_word = nand_read_word;
@@ -2801,9 +2810,9 @@ static void nand_set_defaults(struct nand_chip *chip, int busw)
chip->block_bad = nand_block_bad;
if (!chip->block_markbad)
chip->block_markbad = nand_default_block_markbad;
- if (!chip->write_buf)
+ if (!chip->write_buf || chip->write_buf == nand_write_buf)
chip->write_buf = busw ? nand_write_buf16 : nand_write_buf;
- if (!chip->read_buf)
+ if (!chip->read_buf || chip->read_buf == nand_read_buf)
chip->read_buf = busw ? nand_read_buf16 : nand_read_buf;
if (!chip->scan_bbt)
chip->scan_bbt = nand_default_bbt;
@@ -2846,6 +2855,78 @@ static u16 onfi_crc16(u16 crc, u8 const *p, size_t len)
return crc;
}
+/* Parse the Extended Parameter Page. */
+static int nand_flash_detect_ext_param_page(struct mtd_info *mtd,
+ struct nand_chip *chip, struct nand_onfi_params *p)
+{
+ struct onfi_ext_param_page *ep;
+ struct onfi_ext_section *s;
+ struct onfi_ext_ecc_info *ecc;
+ uint8_t *cursor;
+ int ret = -EINVAL;
+ int len;
+ int i;
+
+ len = le16_to_cpu(p->ext_param_page_length) * 16;
+ ep = kmalloc(len, GFP_KERNEL);
+ if (!ep) {
+ ret = -ENOMEM;
+ goto ext_out;
+ }
+
+ /* Send our own NAND_CMD_PARAM. */
+ chip->cmdfunc(mtd, NAND_CMD_PARAM, 0, -1);
+
+ /* Use the Change Read Column command to skip the ONFI param pages. */
+ chip->cmdfunc(mtd, NAND_CMD_RNDOUT,
+ sizeof(*p) * p->num_of_param_pages , -1);
+
+ /* Read out the Extended Parameter Page. */
+ chip->read_buf(mtd, (uint8_t *)ep, len);
+ if ((onfi_crc16(ONFI_CRC_BASE, ((uint8_t *)ep) + 2, len - 2)
+ != le16_to_cpu(ep->crc))) {
+ pr_debug("fail in the CRC.\n");
+ goto ext_out;
+ }
+
+ /*
+ * Check the signature.
+ * Do not strictly follow the ONFI spec, maybe changed in future.
+ */
+ if (strncmp(ep->sig, "EPPS", 4)) {
+ pr_debug("The signature is invalid.\n");
+ goto ext_out;
+ }
+
+ /* find the ECC section. */
+ cursor = (uint8_t *)(ep + 1);
+ for (i = 0; i < ONFI_EXT_SECTION_MAX; i++) {
+ s = ep->sections + i;
+ if (s->type == ONFI_SECTION_TYPE_2)
+ break;
+ cursor += s->length * 16;
+ }
+ if (i == ONFI_EXT_SECTION_MAX) {
+ pr_debug("We can not find the ECC section.\n");
+ goto ext_out;
+ }
+
+ /* get the info we want. */
+ ecc = (struct onfi_ext_ecc_info *)cursor;
+
+ if (ecc->codeword_size) {
+ chip->ecc_strength_ds = ecc->ecc_bits;
+ chip->ecc_step_ds = 1 << ecc->codeword_size;
+ }
+
+ pr_info("ONFI extended param page detected.\n");
+ return 0;
+
+ext_out:
+ kfree(ep);
+ return ret;
+}
+
/*
* Check if the NAND chip is ONFI compliant, returns 1 if it is, 0 otherwise.
*/
@@ -2907,9 +2988,31 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
mtd->oobsize = le16_to_cpu(p->spare_bytes_per_page);
chip->chipsize = le32_to_cpu(p->blocks_per_lun);
chip->chipsize *= (uint64_t)mtd->erasesize * p->lun_count;
- *busw = 0;
- if (le16_to_cpu(p->features) & 1)
+
+ if (onfi_feature(chip) & ONFI_FEATURE_16_BIT_BUS)
*busw = NAND_BUSWIDTH_16;
+ else
+ *busw = 0;
+
+ if (p->ecc_bits != 0xff) {
+ chip->ecc_strength_ds = p->ecc_bits;
+ chip->ecc_step_ds = 512;
+ } else if (chip->onfi_version >= 21 &&
+ (onfi_feature(chip) & ONFI_FEATURE_EXT_PARAM_PAGE)) {
+
+ /*
+ * The nand_flash_detect_ext_param_page() uses the
+ * Change Read Column command which maybe not supported
+ * by the chip->cmdfunc. So try to update the chip->cmdfunc
+ * now. We do not replace user supplied command function.
+ */
+ if (mtd->writesize > 512 && chip->cmdfunc == nand_command)
+ chip->cmdfunc = nand_command_lp;
+
+ /* The Extended Parameter Page is supported since ONFI 2.1. */
+ if (nand_flash_detect_ext_param_page(mtd, chip, p))
+ pr_info("Failed to detect the extended param page.\n");
+ }
pr_info("ONFI flash detected\n");
return 1;
@@ -3086,6 +3189,22 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
extid >>= 2;
/* Get buswidth information */
*busw = (extid & 0x01) ? NAND_BUSWIDTH_16 : 0;
+
+ /*
+ * Toshiba 24nm raw SLC (i.e., not BENAND) have 32B OOB per
+ * 512B page. For Toshiba SLC, we decode the 5th/6th byte as
+ * follows:
+ * - ID byte 6, bits[2:0]: 100b -> 43nm, 101b -> 32nm,
+ * 110b -> 24nm
+ * - ID byte 5, bit[7]: 1 -> BENAND, 0 -> raw SLC
+ */
+ if (id_len >= 6 && id_data[0] == NAND_MFR_TOSHIBA &&
+ !(chip->cellinfo & NAND_CI_CELLTYPE_MSK) &&
+ (id_data[5] & 0x7) == 0x6 /* 24nm */ &&
+ !(id_data[4] & 0x80) /* !BENAND */) {
+ mtd->oobsize = 32 * mtd->writesize >> 9;
+ }
+
}
}
@@ -3172,6 +3291,8 @@ static bool find_full_id_nand(struct mtd_info *mtd, struct nand_chip *chip,
chip->cellinfo = id_data[2];
chip->chipsize = (uint64_t)type->chipsize << 20;
chip->options |= type->options;
+ chip->ecc_strength_ds = NAND_ECC_STRENGTH(type);
+ chip->ecc_step_ds = NAND_ECC_STEP(type);
*busw = type->options & NAND_BUSWIDTH_16;
@@ -3446,12 +3567,6 @@ int nand_scan_tail(struct mtd_info *mtd)
if (!chip->write_page)
chip->write_page = nand_write_page;
- /* set for ONFI nand */
- if (!chip->onfi_set_features)
- chip->onfi_set_features = nand_onfi_set_features;
- if (!chip->onfi_get_features)
- chip->onfi_get_features = nand_onfi_get_features;
-
/*
* Check ECC mode, default to software if 3byte/512byte hardware ECC is
* selected and we have 256 byte pagesize fallback to software ECC
@@ -3674,6 +3789,7 @@ int nand_scan_tail(struct mtd_info *mtd)
/* propagate ecc info to mtd_info */
mtd->ecclayout = chip->ecc.layout;
mtd->ecc_strength = chip->ecc.strength;
+ mtd->ecc_step_size = chip->ecc.size;
/*
* Initialize bitflip_threshold to its default prior scan_bbt() call.
* scan_bbt() might invoke mtd_read(), thus bitflip_threshold must be
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index 2672643..bc06196 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -71,6 +71,30 @@
#include <linux/export.h>
#include <linux/string.h>
+#define BBT_BLOCK_GOOD 0x00
+#define BBT_BLOCK_WORN 0x01
+#define BBT_BLOCK_RESERVED 0x02
+#define BBT_BLOCK_FACTORY_BAD 0x03
+
+#define BBT_ENTRY_MASK 0x03
+#define BBT_ENTRY_SHIFT 2
+
+static int nand_update_bbt(struct mtd_info *mtd, loff_t offs);
+
+static inline uint8_t bbt_get_entry(struct nand_chip *chip, int block)
+{
+ uint8_t entry = chip->bbt[block >> BBT_ENTRY_SHIFT];
+ entry >>= (block & BBT_ENTRY_MASK) * 2;
+ return entry & BBT_ENTRY_MASK;
+}
+
+static inline void bbt_mark_entry(struct nand_chip *chip, int block,
+ uint8_t mark)
+{
+ uint8_t msk = (mark & BBT_ENTRY_MASK) << ((block & BBT_ENTRY_MASK) * 2);
+ chip->bbt[block >> BBT_ENTRY_SHIFT] |= msk;
+}
+
static int check_pattern_no_oob(uint8_t *buf, struct nand_bbt_descr *td)
{
if (memcmp(buf, td->pattern, td->len))
@@ -86,33 +110,17 @@ static int check_pattern_no_oob(uint8_t *buf, struct nand_bbt_descr *td)
* @td: search pattern descriptor
*
* Check for a pattern at the given place. Used to search bad block tables and
- * good / bad block identifiers. If the SCAN_EMPTY option is set then check, if
- * all bytes except the pattern area contain 0xff.
+ * good / bad block identifiers.
*/
static int check_pattern(uint8_t *buf, int len, int paglen, struct nand_bbt_descr *td)
{
- int end = 0;
- uint8_t *p = buf;
-
if (td->options & NAND_BBT_NO_OOB)
return check_pattern_no_oob(buf, td);
- end = paglen + td->offs;
- if (td->options & NAND_BBT_SCANEMPTY)
- if (memchr_inv(p, 0xff, end))
- return -1;
- p += end;
-
/* Compare the pattern */
- if (memcmp(p, td->pattern, td->len))
+ if (memcmp(buf + paglen + td->offs, td->pattern, td->len))
return -1;
- if (td->options & NAND_BBT_SCANEMPTY) {
- p += td->len;
- end += td->len;
- if (memchr_inv(p, 0xff, len - end))
- return -1;
- }
return 0;
}
@@ -159,7 +167,7 @@ static u32 add_marker_len(struct nand_bbt_descr *td)
* @page: the starting page
* @num: the number of bbt descriptors to read
* @td: the bbt describtion table
- * @offs: offset in the memory table
+ * @offs: block number offset in the table
*
* Read the bad block table starting from page.
*/
@@ -209,14 +217,16 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
/* Analyse data */
for (i = 0; i < len; i++) {
uint8_t dat = buf[i];
- for (j = 0; j < 8; j += bits, act += 2) {
+ for (j = 0; j < 8; j += bits, act++) {
uint8_t tmp = (dat >> j) & msk;
if (tmp == msk)
continue;
if (reserved_block_code && (tmp == reserved_block_code)) {
pr_info("nand_read_bbt: reserved block at 0x%012llx\n",
- (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
- this->bbt[offs + (act >> 3)] |= 0x2 << (act & 0x06);
+ (loff_t)(offs + act) <<
+ this->bbt_erase_shift);
+ bbt_mark_entry(this, offs + act,
+ BBT_BLOCK_RESERVED);
mtd->ecc_stats.bbtblocks++;
continue;
}
@@ -225,12 +235,15 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
* move this message to pr_debug.
*/
pr_info("nand_read_bbt: bad block at 0x%012llx\n",
- (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
+ (loff_t)(offs + act) <<
+ this->bbt_erase_shift);
/* Factory marked bad or worn out? */
if (tmp == 0)
- this->bbt[offs + (act >> 3)] |= 0x3 << (act & 0x06);
+ bbt_mark_entry(this, offs + act,
+ BBT_BLOCK_FACTORY_BAD);
else
- this->bbt[offs + (act >> 3)] |= 0x1 << (act & 0x06);
+ bbt_mark_entry(this, offs + act,
+ BBT_BLOCK_WORN);
mtd->ecc_stats.badblocks++;
}
}
@@ -265,7 +278,7 @@ static int read_abs_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
td, offs);
if (res)
return res;
- offs += this->chipsize >> (this->bbt_erase_shift + 2);
+ offs += this->chipsize >> this->bbt_erase_shift;
}
} else {
res = read_bbt(mtd, buf, td->pages[0],
@@ -478,22 +491,12 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
else
numpages = 1;
- if (!(bd->options & NAND_BBT_SCANEMPTY)) {
- /* We need only read few bytes from the OOB area */
- scanlen = 0;
- readlen = bd->len;
- } else {
- /* Full page content should be read */
- scanlen = mtd->writesize + mtd->oobsize;
- readlen = numpages * mtd->writesize;
- }
+ /* We need only read few bytes from the OOB area */
+ scanlen = 0;
+ readlen = bd->len;
if (chip == -1) {
- /*
- * Note that numblocks is 2 * (real numblocks) here, see i+=2
- * below as it makes shifting and masking less painful
- */
- numblocks = mtd->size >> (this->bbt_erase_shift - 1);
+ numblocks = mtd->size >> this->bbt_erase_shift;
startblock = 0;
from = 0;
} else {
@@ -502,16 +505,16 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
chip + 1, this->numchips);
return -EINVAL;
}
- numblocks = this->chipsize >> (this->bbt_erase_shift - 1);
+ numblocks = this->chipsize >> this->bbt_erase_shift;
startblock = chip * numblocks;
numblocks += startblock;
- from = (loff_t)startblock << (this->bbt_erase_shift - 1);
+ from = (loff_t)startblock << this->bbt_erase_shift;
}
if (this->bbt_options & NAND_BBT_SCANLASTPAGE)
from += mtd->erasesize - (mtd->writesize * numpages);
- for (i = startblock; i < numblocks;) {
+ for (i = startblock; i < numblocks; i++) {
int ret;
BUG_ON(bd->options & NAND_BBT_NO_OOB);
@@ -526,13 +529,12 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
return ret;
if (ret) {
- this->bbt[i >> 3] |= 0x03 << (i & 0x6);
+ bbt_mark_entry(this, i, BBT_BLOCK_FACTORY_BAD);
pr_warn("Bad eraseblock %d at 0x%012llx\n",
- i >> 1, (unsigned long long)from);
+ i, (unsigned long long)from);
mtd->ecc_stats.badblocks++;
}
- i += 2;
from += (1 << this->bbt_erase_shift);
}
return 0;
@@ -655,9 +657,9 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
{
struct nand_chip *this = mtd->priv;
struct erase_info einfo;
- int i, j, res, chip = 0;
+ int i, res, chip = 0;
int bits, startblock, dir, page, offs, numblocks, sft, sftmsk;
- int nrchips, bbtoffs, pageoffs, ooboffs;
+ int nrchips, pageoffs, ooboffs;
uint8_t msk[4];
uint8_t rcode = td->reserved_block_code;
size_t retlen, len = 0;
@@ -713,10 +715,9 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
for (i = 0; i < td->maxblocks; i++) {
int block = startblock + dir * i;
/* Check, if the block is bad */
- switch ((this->bbt[block >> 2] >>
- (2 * (block & 0x03))) & 0x03) {
- case 0x01:
- case 0x03:
+ switch (bbt_get_entry(this, block)) {
+ case BBT_BLOCK_WORN:
+ case BBT_BLOCK_FACTORY_BAD:
continue;
}
page = block <<
@@ -748,8 +749,6 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
default: return -EINVAL;
}
- bbtoffs = chip * (numblocks >> 2);
-
to = ((loff_t)page) << this->page_shift;
/* Must we save the block contents? */
@@ -814,16 +813,12 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
buf[ooboffs + td->veroffs] = td->version[chip];
/* Walk through the memory table */
- for (i = 0; i < numblocks;) {
+ for (i = 0; i < numblocks; i++) {
uint8_t dat;
- dat = this->bbt[bbtoffs + (i >> 2)];
- for (j = 0; j < 4; j++, i++) {
- int sftcnt = (i << (3 - sft)) & sftmsk;
- /* Do not store the reserved bbt blocks! */
- buf[offs + (i >> sft)] &=
- ~(msk[dat & 0x03] << sftcnt);
- dat >>= 2;
- }
+ int sftcnt = (i << (3 - sft)) & sftmsk;
+ dat = bbt_get_entry(this, chip * numblocks + i);
+ /* Do not store the reserved bbt blocks! */
+ buf[offs + (i >> sft)] &= ~(msk[dat] << sftcnt);
}
memset(&einfo, 0, sizeof(einfo));
@@ -865,7 +860,6 @@ static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *b
{
struct nand_chip *this = mtd->priv;
- bd->options &= ~NAND_BBT_SCANEMPTY;
return create_bbt(mtd, this->buffers->databuf, bd, -1);
}
@@ -1009,7 +1003,7 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
{
struct nand_chip *this = mtd->priv;
int i, j, chips, block, nrblocks, update;
- uint8_t oldval, newval;
+ uint8_t oldval;
/* Do we have a bbt per chip? */
if (td->options & NAND_BBT_PERCHIP) {
@@ -1026,12 +1020,12 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
if (td->pages[i] == -1)
continue;
block = td->pages[i] >> (this->bbt_erase_shift - this->page_shift);
- block <<= 1;
- oldval = this->bbt[(block >> 3)];
- newval = oldval | (0x2 << (block & 0x06));
- this->bbt[(block >> 3)] = newval;
- if ((oldval != newval) && td->reserved_block_code)
- nand_update_bbt(mtd, (loff_t)block << (this->bbt_erase_shift - 1));
+ oldval = bbt_get_entry(this, block);
+ bbt_mark_entry(this, block, BBT_BLOCK_RESERVED);
+ if ((oldval != BBT_BLOCK_RESERVED) &&
+ td->reserved_block_code)
+ nand_update_bbt(mtd, (loff_t)block <<
+ this->bbt_erase_shift);
continue;
}
update = 0;
@@ -1039,14 +1033,12 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
block = ((i + 1) * nrblocks) - td->maxblocks;
else
block = i * nrblocks;
- block <<= 1;
for (j = 0; j < td->maxblocks; j++) {
- oldval = this->bbt[(block >> 3)];
- newval = oldval | (0x2 << (block & 0x06));
- this->bbt[(block >> 3)] = newval;
- if (oldval != newval)
+ oldval = bbt_get_entry(this, block);
+ bbt_mark_entry(this, block, BBT_BLOCK_RESERVED);
+ if (oldval != BBT_BLOCK_RESERVED)
update = 1;
- block += 2;
+ block++;
}
/*
* If we want reserved blocks to be recorded to flash, and some
@@ -1054,7 +1046,8 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
* bbts. This should only happen once.
*/
if (update && td->reserved_block_code)
- nand_update_bbt(mtd, (loff_t)(block - 2) << (this->bbt_erase_shift - 1));
+ nand_update_bbt(mtd, (loff_t)(block - 1) <<
+ this->bbt_erase_shift);
}
}
@@ -1180,13 +1173,13 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
}
/**
- * nand_update_bbt - [NAND Interface] update bad block table(s)
+ * nand_update_bbt - update bad block table(s)
* @mtd: MTD device structure
* @offs: the offset of the newly marked block
*
* The function updates the bad block table(s).
*/
-int nand_update_bbt(struct mtd_info *mtd, loff_t offs)
+static int nand_update_bbt(struct mtd_info *mtd, loff_t offs)
{
struct nand_chip *this = mtd->priv;
int len, res = 0;
@@ -1356,28 +1349,47 @@ int nand_default_bbt(struct mtd_info *mtd)
int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
{
struct nand_chip *this = mtd->priv;
- int block;
- uint8_t res;
+ int block, res;
- /* Get block number * 2 */
- block = (int)(offs >> (this->bbt_erase_shift - 1));
- res = (this->bbt[block >> 3] >> (block & 0x06)) & 0x03;
+ block = (int)(offs >> this->bbt_erase_shift);
+ res = bbt_get_entry(this, block);
pr_debug("nand_isbad_bbt(): bbt info for offs 0x%08x: "
"(block %d) 0x%02x\n",
- (unsigned int)offs, block >> 1, res);
+ (unsigned int)offs, block, res);
- switch ((int)res) {
- case 0x00:
+ switch (res) {
+ case BBT_BLOCK_GOOD:
return 0;
- case 0x01:
+ case BBT_BLOCK_WORN:
return 1;
- case 0x02:
+ case BBT_BLOCK_RESERVED:
return allowbbt ? 0 : 1;
}
return 1;
}
+/**
+ * nand_markbad_bbt - [NAND Interface] Mark a block bad in the BBT
+ * @mtd: MTD device structure
+ * @offs: offset of the bad block
+ */
+int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs)
+{
+ struct nand_chip *this = mtd->priv;
+ int block, ret = 0;
+
+ block = (int)(offs >> this->bbt_erase_shift);
+
+ /* Mark bad block in memory */
+ bbt_mark_entry(this, block, BBT_BLOCK_WORN);
+
+ /* Update flash-based bad block table */
+ if (this->bbt_options & NAND_BBT_USE_FLASH)
+ ret = nand_update_bbt(mtd, offs);
+
+ return ret;
+}
+
EXPORT_SYMBOL(nand_scan_bbt);
EXPORT_SYMBOL(nand_default_bbt);
-EXPORT_SYMBOL_GPL(nand_update_bbt);
diff --git a/drivers/mtd/nand/nand_ids.c b/drivers/mtd/nand/nand_ids.c
index 683813a..a87b0a3 100644
--- a/drivers/mtd/nand/nand_ids.c
+++ b/drivers/mtd/nand/nand_ids.c
@@ -33,16 +33,16 @@ struct nand_flash_dev nand_flash_ids[] = {
*/
{"TC58NVG2S0F 4G 3.3V 8-bit",
{ .id = {0x98, 0xdc, 0x90, 0x26, 0x76, 0x15, 0x01, 0x08} },
- SZ_4K, SZ_512, SZ_256K, 0, 8, 224},
+ SZ_4K, SZ_512, SZ_256K, 0, 8, 224, NAND_ECC_INFO(4, SZ_512) },
{"TC58NVG3S0F 8G 3.3V 8-bit",
{ .id = {0x98, 0xd3, 0x90, 0x26, 0x76, 0x15, 0x02, 0x08} },
- SZ_4K, SZ_1K, SZ_256K, 0, 8, 232},
+ SZ_4K, SZ_1K, SZ_256K, 0, 8, 232, NAND_ECC_INFO(4, SZ_512) },
{"TC58NVG5D2 32G 3.3V 8-bit",
{ .id = {0x98, 0xd7, 0x94, 0x32, 0x76, 0x56, 0x09, 0x00} },
- SZ_8K, SZ_4K, SZ_1M, 0, 8, 640},
+ SZ_8K, SZ_4K, SZ_1M, 0, 8, 640, NAND_ECC_INFO(40, SZ_1K) },
{"TC58NVG6D2 64G 3.3V 8-bit",
{ .id = {0x98, 0xde, 0x94, 0x82, 0x76, 0x56, 0x04, 0x20} },
- SZ_8K, SZ_8K, SZ_2M, 0, 8, 640},
+ SZ_8K, SZ_8K, SZ_2M, 0, 8, 640, NAND_ECC_INFO(40, SZ_1K) },
LEGACY_ID_NAND("NAND 4MiB 5V 8-bit", 0x6B, 4, SZ_8K, SP_OPTIONS),
LEGACY_ID_NAND("NAND 4MiB 3,3V 8-bit", 0xE3, 4, SZ_8K, SP_OPTIONS),
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index cb38f3d..bdc1d15 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -205,7 +205,7 @@ MODULE_PARM_DESC(bch, "Enable BCH ecc and set how many bits should "
/* Calculate the page offset in flash RAM image by (row, column) address */
#define NS_RAW_OFFSET(ns) \
- (((ns)->regs.row << (ns)->geom.pgshift) + ((ns)->regs.row * (ns)->geom.oobsz) + (ns)->regs.column)
+ (((ns)->regs.row * (ns)->geom.pgszoob) + (ns)->regs.column)
/* Calculate the OOB offset in flash RAM image by (row, column) address */
#define NS_RAW_OFFSET_OOB(ns) (NS_RAW_OFFSET(ns) + ns->geom.pgsz)
@@ -336,7 +336,6 @@ struct nandsim {
uint pgsec; /* number of pages per sector */
uint secshift; /* bits number in sector size */
uint pgshift; /* bits number in page size */
- uint oobshift; /* bits number in OOB size */
uint pgaddrbytes; /* bytes per page address */
uint secaddrbytes; /* bytes per sector address */
uint idbytes; /* the number ID bytes that this chip outputs */
@@ -363,7 +362,7 @@ struct nandsim {
/* Fields needed when using a cache file */
struct file *cfile; /* Open file */
- unsigned char *pages_written; /* Which pages have been written */
+ unsigned long *pages_written; /* Which pages have been written */
void *file_buf;
struct page *held_pages[NS_MAX_HELD_PAGES];
int held_cnt;
@@ -586,7 +585,8 @@ static int alloc_device(struct nandsim *ns)
err = -EINVAL;
goto err_close;
}
- ns->pages_written = vzalloc(ns->geom.pgnum);
+ ns->pages_written = vzalloc(BITS_TO_LONGS(ns->geom.pgnum) *
+ sizeof(unsigned long));
if (!ns->pages_written) {
NS_ERR("alloc_device: unable to allocate pages written array\n");
err = -ENOMEM;
@@ -653,9 +653,7 @@ static void free_device(struct nandsim *ns)
static char *get_partition_name(int i)
{
- char buf[64];
- sprintf(buf, "NAND simulator partition %d", i);
- return kstrdup(buf, GFP_KERNEL);
+ return kasprintf(GFP_KERNEL, "NAND simulator partition %d", i);
}
/*
@@ -690,7 +688,6 @@ static int init_nandsim(struct mtd_info *mtd)
ns->geom.totszoob = ns->geom.totsz + (uint64_t)ns->geom.pgnum * ns->geom.oobsz;
ns->geom.secshift = ffs(ns->geom.secsz) - 1;
ns->geom.pgshift = chip->page_shift;
- ns->geom.oobshift = ffs(ns->geom.oobsz) - 1;
ns->geom.pgsec = ns->geom.secsz / ns->geom.pgsz;
ns->geom.secszoob = ns->geom.secsz + ns->geom.oobsz * ns->geom.pgsec;
ns->options = 0;
@@ -761,12 +758,6 @@ static int init_nandsim(struct mtd_info *mtd)
ns->nbparts += 1;
}
- /* Detect how many ID bytes the NAND chip outputs */
- for (i = 0; nand_flash_ids[i].name != NULL; i++) {
- if (second_id_byte != nand_flash_ids[i].dev_id)
- continue;
- }
-
if (ns->busw == 16)
NS_WARN("16-bit flashes support wasn't tested\n");
@@ -780,7 +771,7 @@ static int init_nandsim(struct mtd_info *mtd)
printk("bus width: %u\n", ns->busw);
printk("bits in sector size: %u\n", ns->geom.secshift);
printk("bits in page size: %u\n", ns->geom.pgshift);
- printk("bits in OOB size: %u\n", ns->geom.oobshift);
+ printk("bits in OOB size: %u\n", ffs(ns->geom.oobsz) - 1);
printk("flash size with OOB: %llu KiB\n",
(unsigned long long)ns->geom.totszoob >> 10);
printk("page address bytes: %u\n", ns->geom.pgaddrbytes);
@@ -1442,7 +1433,7 @@ static inline u_char *NS_PAGE_BYTE_OFF(struct nandsim *ns)
return NS_GET_PAGE(ns)->byte + ns->regs.column + ns->regs.off;
}
-int do_read_error(struct nandsim *ns, int num)
+static int do_read_error(struct nandsim *ns, int num)
{
unsigned int page_no = ns->regs.row;
@@ -1454,7 +1445,7 @@ int do_read_error(struct nandsim *ns, int num)
return 0;
}
-void do_bit_flips(struct nandsim *ns, int num)
+static void do_bit_flips(struct nandsim *ns, int num)
{
if (bitflips && prandom_u32() < (1 << 22)) {
int flips = 1;
@@ -1479,7 +1470,7 @@ static void read_page(struct nandsim *ns, int num)
union ns_mem *mypage;
if (ns->cfile) {
- if (!ns->pages_written[ns->regs.row]) {
+ if (!test_bit(ns->regs.row, ns->pages_written)) {
NS_DBG("read_page: page %d not written\n", ns->regs.row);
memset(ns->buf.byte, 0xFF, num);
} else {
@@ -1490,7 +1481,7 @@ static void read_page(struct nandsim *ns, int num)
ns->regs.row, ns->regs.column + ns->regs.off);
if (do_read_error(ns, num))
return;
- pos = (loff_t)ns->regs.row * ns->geom.pgszoob + ns->regs.column + ns->regs.off;
+ pos = (loff_t)NS_RAW_OFFSET(ns) + ns->regs.off;
tx = read_file(ns, ns->cfile, ns->buf.byte, num, pos);
if (tx != num) {
NS_ERR("read_page: read error for page %d ret %ld\n", ns->regs.row, (long)tx);
@@ -1525,9 +1516,9 @@ static void erase_sector(struct nandsim *ns)
if (ns->cfile) {
for (i = 0; i < ns->geom.pgsec; i++)
- if (ns->pages_written[ns->regs.row + i]) {
+ if (__test_and_clear_bit(ns->regs.row + i,
+ ns->pages_written)) {
NS_DBG("erase_sector: freeing page %d\n", ns->regs.row + i);
- ns->pages_written[ns->regs.row + i] = 0;
}
return;
}
@@ -1559,8 +1550,8 @@ static int prog_page(struct nandsim *ns, int num)
NS_DBG("prog_page: writing page %d\n", ns->regs.row);
pg_off = ns->file_buf + ns->regs.column + ns->regs.off;
- off = (loff_t)ns->regs.row * ns->geom.pgszoob + ns->regs.column + ns->regs.off;
- if (!ns->pages_written[ns->regs.row]) {
+ off = (loff_t)NS_RAW_OFFSET(ns) + ns->regs.off;
+ if (!test_bit(ns->regs.row, ns->pages_written)) {
all = 1;
memset(ns->file_buf, 0xff, ns->geom.pgszoob);
} else {
@@ -1580,7 +1571,7 @@ static int prog_page(struct nandsim *ns, int num)
NS_ERR("prog_page: write error for page %d ret %ld\n", ns->regs.row, (long)tx);
return -1;
}
- ns->pages_written[ns->regs.row] = 1;
+ __set_bit(ns->regs.row, ns->pages_written);
} else {
tx = write_file(ns, ns->cfile, pg_off, num, off);
if (tx != num) {
diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c
index cd6be2e..5211515 100644
--- a/drivers/mtd/nand/nuc900_nand.c
+++ b/drivers/mtd/nand/nuc900_nand.c
@@ -324,8 +324,6 @@ static int nuc900_nand_remove(struct platform_device *pdev)
kfree(nuc900_nand);
- platform_set_drvdata(pdev, NULL);
-
return 0;
}
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 81b80af..4ecf0e5f 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -154,7 +154,7 @@ static struct nand_ecclayout omap_oobinfo;
*/
static uint8_t scan_ff_pattern[] = { 0xff };
static struct nand_bbt_descr bb_descrip_flashbased = {
- .options = NAND_BBT_SCANEMPTY | NAND_BBT_SCANALLPAGES,
+ .options = NAND_BBT_SCANALLPAGES,
.offs = 0,
.len = 1,
.pattern = scan_ff_pattern,
@@ -1831,7 +1831,7 @@ static int omap_nand_probe(struct platform_device *pdev)
struct resource *res;
struct mtd_part_parser_data ppdata = {};
- pdata = pdev->dev.platform_data;
+ pdata = dev_get_platdata(&pdev->dev);
if (pdata == NULL) {
dev_err(&pdev->dev, "platform data missing\n");
return -ENODEV;
@@ -2087,7 +2087,6 @@ static int omap_nand_remove(struct platform_device *pdev)
mtd);
omap3_free_bch(&info->mtd);
- platform_set_drvdata(pdev, NULL);
if (info->dma)
dma_release_channel(info->dma);
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index 8fbd002..a393a5b 100644
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -130,8 +130,9 @@ static int __init orion_nand_probe(struct platform_device *pdev)
if (!of_property_read_u32(pdev->dev.of_node,
"chip-delay", &val))
board->chip_delay = (u8)val;
- } else
- board = pdev->dev.platform_data;
+ } else {
+ board = dev_get_platdata(&pdev->dev);
+ }
mtd->priv = nc;
mtd->owner = THIS_MODULE;
@@ -186,7 +187,6 @@ no_dev:
clk_disable_unprepare(clk);
clk_put(clk);
}
- platform_set_drvdata(pdev, NULL);
iounmap(io_base);
no_res:
kfree(nc);
diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
index c004566..cad4cdc 100644
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -30,7 +30,7 @@ static const char *part_probe_types[] = { "cmdlinepart", NULL };
*/
static int plat_nand_probe(struct platform_device *pdev)
{
- struct platform_nand_data *pdata = pdev->dev.platform_data;
+ struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev);
struct mtd_part_parser_data ppdata;
struct plat_nand_data *data;
struct resource *res;
@@ -122,7 +122,6 @@ static int plat_nand_probe(struct platform_device *pdev)
out:
if (pdata->ctrl.remove)
pdata->ctrl.remove(pdev);
- platform_set_drvdata(pdev, NULL);
iounmap(data->io_base);
out_release_io:
release_mem_region(res->start, resource_size(res));
@@ -137,7 +136,7 @@ out_free:
static int plat_nand_remove(struct platform_device *pdev)
{
struct plat_nand_data *data = platform_get_drvdata(pdev);
- struct platform_nand_data *pdata = pdev->dev.platform_data;
+ struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev);
struct resource *res;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index dec80ca..5db900d 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -25,7 +25,14 @@
#include <linux/of.h>
#include <linux/of_device.h>
+#if defined(CONFIG_ARCH_PXA) || defined(CONFIG_ARCH_MMP)
+#define ARCH_HAS_DMA
+#endif
+
+#ifdef ARCH_HAS_DMA
#include <mach/dma.h>
+#endif
+
#include <linux/platform_data/mtd-nand-pxa3xx.h>
#define CHIP_DELAY_TIMEOUT (2 * HZ/10)
@@ -80,6 +87,7 @@
#define NDSR_RDDREQ (0x1 << 1)
#define NDSR_WRCMDREQ (0x1)
+#define NDCB0_LEN_OVRD (0x1 << 28)
#define NDCB0_ST_ROW_EN (0x1 << 26)
#define NDCB0_AUTO_RS (0x1 << 25)
#define NDCB0_CSEL (0x1 << 24)
@@ -123,9 +131,13 @@ enum {
STATE_READY,
};
+enum pxa3xx_nand_variant {
+ PXA3XX_NAND_VARIANT_PXA,
+ PXA3XX_NAND_VARIANT_ARMADA370,
+};
+
struct pxa3xx_nand_host {
struct nand_chip chip;
- struct pxa3xx_nand_cmdset *cmdset;
struct mtd_info *mtd;
void *info_data;
@@ -139,10 +151,6 @@ struct pxa3xx_nand_host {
unsigned int row_addr_cycles;
size_t read_id_bytes;
- /* cached register value */
- uint32_t reg_ndcr;
- uint32_t ndtr0cs0;
- uint32_t ndtr1cs0;
};
struct pxa3xx_nand_info {
@@ -171,9 +179,16 @@ struct pxa3xx_nand_info {
struct pxa3xx_nand_host *host[NUM_CHIP_SELECT];
unsigned int state;
+ /*
+ * This driver supports NFCv1 (as found in PXA SoC)
+ * and NFCv2 (as found in Armada 370/XP SoC).
+ */
+ enum pxa3xx_nand_variant variant;
+
int cs;
int use_ecc; /* use HW ECC ? */
int use_dma; /* use DMA ? */
+ int use_spare; /* use spare ? */
int is_ready;
unsigned int page_size; /* page size of attached chip */
@@ -181,33 +196,22 @@ struct pxa3xx_nand_info {
unsigned int oob_size;
int retcode;
+ /* cached register value */
+ uint32_t reg_ndcr;
+ uint32_t ndtr0cs0;
+ uint32_t ndtr1cs0;
+
/* generated NDCBx register values */
uint32_t ndcb0;
uint32_t ndcb1;
uint32_t ndcb2;
+ uint32_t ndcb3;
};
static bool use_dma = 1;
module_param(use_dma, bool, 0444);
MODULE_PARM_DESC(use_dma, "enable DMA for data transferring to/from NAND HW");
-/*
- * Default NAND flash controller configuration setup by the
- * bootloader. This configuration is used only when pdata->keep_config is set
- */
-static struct pxa3xx_nand_cmdset default_cmdset = {
- .read1 = 0x3000,
- .read2 = 0x0050,
- .program = 0x1080,
- .read_status = 0x0070,
- .read_id = 0x0090,
- .erase = 0xD060,
- .reset = 0x00FF,
- .lock = 0x002A,
- .unlock = 0x2423,
- .lock_status = 0x007A,
-};
-
static struct pxa3xx_nand_timing timing[] = {
{ 40, 80, 60, 100, 80, 100, 90000, 400, 40, },
{ 10, 0, 20, 40, 30, 40, 11123, 110, 10, },
@@ -230,8 +234,6 @@ static struct pxa3xx_nand_flash builtin_flash_types[] = {
/* Define a default flash type setting serve as flash detecting only */
#define DEFAULT_FLASH_TYPE (&builtin_flash_types[0])
-const char *mtd_names[] = {"pxa3xx_nand-0", "pxa3xx_nand-1", NULL};
-
#define NDTR0_tCH(c) (min((c), 7) << 19)
#define NDTR0_tCS(c) (min((c), 7) << 16)
#define NDTR0_tWH(c) (min((c), 7) << 11)
@@ -264,8 +266,8 @@ static void pxa3xx_nand_set_timing(struct pxa3xx_nand_host *host,
NDTR1_tWHR(ns2cycle(t->tWHR, nand_clk)) |
NDTR1_tAR(ns2cycle(t->tAR, nand_clk));
- host->ndtr0cs0 = ndtr0;
- host->ndtr1cs0 = ndtr1;
+ info->ndtr0cs0 = ndtr0;
+ info->ndtr1cs0 = ndtr1;
nand_writel(info, NDTR0CS0, ndtr0);
nand_writel(info, NDTR1CS0, ndtr1);
}
@@ -273,7 +275,7 @@ static void pxa3xx_nand_set_timing(struct pxa3xx_nand_host *host,
static void pxa3xx_set_datasize(struct pxa3xx_nand_info *info)
{
struct pxa3xx_nand_host *host = info->host[info->cs];
- int oob_enable = host->reg_ndcr & NDCR_SPARE_EN;
+ int oob_enable = info->reg_ndcr & NDCR_SPARE_EN;
info->data_size = host->page_size;
if (!oob_enable) {
@@ -299,12 +301,25 @@ static void pxa3xx_set_datasize(struct pxa3xx_nand_info *info)
*/
static void pxa3xx_nand_start(struct pxa3xx_nand_info *info)
{
- struct pxa3xx_nand_host *host = info->host[info->cs];
uint32_t ndcr;
- ndcr = host->reg_ndcr;
- ndcr |= info->use_ecc ? NDCR_ECC_EN : 0;
- ndcr |= info->use_dma ? NDCR_DMA_EN : 0;
+ ndcr = info->reg_ndcr;
+
+ if (info->use_ecc)
+ ndcr |= NDCR_ECC_EN;
+ else
+ ndcr &= ~NDCR_ECC_EN;
+
+ if (info->use_dma)
+ ndcr |= NDCR_DMA_EN;
+ else
+ ndcr &= ~NDCR_DMA_EN;
+
+ if (info->use_spare)
+ ndcr |= NDCR_SPARE_EN;
+ else
+ ndcr &= ~NDCR_SPARE_EN;
+
ndcr |= NDCR_ND_RUN;
/* clear status bits and run */
@@ -333,7 +348,8 @@ static void pxa3xx_nand_stop(struct pxa3xx_nand_info *info)
nand_writel(info, NDSR, NDSR_MASK);
}
-static void enable_int(struct pxa3xx_nand_info *info, uint32_t int_mask)
+static void __maybe_unused
+enable_int(struct pxa3xx_nand_info *info, uint32_t int_mask)
{
uint32_t ndcr;
@@ -373,6 +389,7 @@ static void handle_data_pio(struct pxa3xx_nand_info *info)
}
}
+#ifdef ARCH_HAS_DMA
static void start_data_dma(struct pxa3xx_nand_info *info)
{
struct pxa_dma_desc *desc = info->data_desc;
@@ -419,6 +436,10 @@ static void pxa3xx_nand_data_dma_irq(int channel, void *data)
enable_int(info, NDCR_INT_MASK);
nand_writel(info, NDSR, NDSR_WRDREQ | NDSR_RDDREQ);
}
+#else
+static void start_data_dma(struct pxa3xx_nand_info *info)
+{}
+#endif
static irqreturn_t pxa3xx_nand_irq(int irq, void *devid)
{
@@ -467,9 +488,22 @@ static irqreturn_t pxa3xx_nand_irq(int irq, void *devid)
nand_writel(info, NDSR, NDSR_WRCMDREQ);
status &= ~NDSR_WRCMDREQ;
info->state = STATE_CMD_HANDLE;
+
+ /*
+ * Command buffer registers NDCB{0-2} (and optionally NDCB3)
+ * must be loaded by writing directly either 12 or 16
+ * bytes directly to NDCB0, four bytes at a time.
+ *
+ * Direct write access to NDCB1, NDCB2 and NDCB3 is ignored
+ * but each NDCBx register can be read.
+ */
nand_writel(info, NDCB0, info->ndcb0);
nand_writel(info, NDCB0, info->ndcb1);
nand_writel(info, NDCB0, info->ndcb2);
+
+ /* NDCB3 register is available in NFCv2 (Armada 370/XP SoC) */
+ if (info->variant == PXA3XX_NAND_VARIANT_ARMADA370)
+ nand_writel(info, NDCB0, info->ndcb3);
}
/* clear NDSR to let the controller exit the IRQ */
@@ -491,7 +525,6 @@ static inline int is_buf_blank(uint8_t *buf, size_t len)
static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
uint16_t column, int page_addr)
{
- uint16_t cmd;
int addr_cycle, exec_cmd;
struct pxa3xx_nand_host *host;
struct mtd_info *mtd;
@@ -506,6 +539,8 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
info->buf_count = 0;
info->oob_size = 0;
info->use_ecc = 0;
+ info->use_spare = 1;
+ info->use_dma = (use_dma) ? 1 : 0;
info->is_ready = 0;
info->retcode = ERR_NONE;
if (info->cs != 0)
@@ -520,12 +555,16 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
case NAND_CMD_READOOB:
pxa3xx_set_datasize(info);
break;
+ case NAND_CMD_PARAM:
+ info->use_spare = 0;
+ break;
case NAND_CMD_SEQIN:
exec_cmd = 0;
break;
default:
info->ndcb1 = 0;
info->ndcb2 = 0;
+ info->ndcb3 = 0;
break;
}
@@ -535,21 +574,17 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
switch (command) {
case NAND_CMD_READOOB:
case NAND_CMD_READ0:
- cmd = host->cmdset->read1;
+ info->buf_start = column;
+ info->ndcb0 |= NDCB0_CMD_TYPE(0)
+ | addr_cycle
+ | NAND_CMD_READ0;
+
if (command == NAND_CMD_READOOB)
- info->buf_start = mtd->writesize + column;
- else
- info->buf_start = column;
+ info->buf_start += mtd->writesize;
- if (unlikely(host->page_size < PAGE_CHUNK_SIZE))
- info->ndcb0 |= NDCB0_CMD_TYPE(0)
- | addr_cycle
- | (cmd & NDCB0_CMD1_MASK);
- else
- info->ndcb0 |= NDCB0_CMD_TYPE(0)
- | NDCB0_DBC
- | addr_cycle
- | cmd;
+ /* Second command setting for large pages */
+ if (host->page_size >= PAGE_CHUNK_SIZE)
+ info->ndcb0 |= NDCB0_DBC | (NAND_CMD_READSTART << 8);
case NAND_CMD_SEQIN:
/* small page addr setting */
@@ -580,49 +615,58 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
break;
}
- cmd = host->cmdset->program;
info->ndcb0 |= NDCB0_CMD_TYPE(0x1)
| NDCB0_AUTO_RS
| NDCB0_ST_ROW_EN
| NDCB0_DBC
- | cmd
+ | (NAND_CMD_PAGEPROG << 8)
+ | NAND_CMD_SEQIN
| addr_cycle;
break;
+ case NAND_CMD_PARAM:
+ info->buf_count = 256;
+ info->ndcb0 |= NDCB0_CMD_TYPE(0)
+ | NDCB0_ADDR_CYC(1)
+ | NDCB0_LEN_OVRD
+ | command;
+ info->ndcb1 = (column & 0xFF);
+ info->ndcb3 = 256;
+ info->data_size = 256;
+ break;
+
case NAND_CMD_READID:
- cmd = host->cmdset->read_id;
info->buf_count = host->read_id_bytes;
info->ndcb0 |= NDCB0_CMD_TYPE(3)
| NDCB0_ADDR_CYC(1)
- | cmd;
+ | command;
+ info->ndcb1 = (column & 0xFF);
info->data_size = 8;
break;
case NAND_CMD_STATUS:
- cmd = host->cmdset->read_status;
info->buf_count = 1;
info->ndcb0 |= NDCB0_CMD_TYPE(4)
| NDCB0_ADDR_CYC(1)
- | cmd;
+ | command;
info->data_size = 8;
break;
case NAND_CMD_ERASE1:
- cmd = host->cmdset->erase;
info->ndcb0 |= NDCB0_CMD_TYPE(2)
| NDCB0_AUTO_RS
| NDCB0_ADDR_CYC(3)
| NDCB0_DBC
- | cmd;
+ | (NAND_CMD_ERASE2 << 8)
+ | NAND_CMD_ERASE1;
info->ndcb1 = page_addr;
info->ndcb2 = 0;
break;
case NAND_CMD_RESET:
- cmd = host->cmdset->reset;
info->ndcb0 |= NDCB0_CMD_TYPE(5)
- | cmd;
+ | command;
break;
@@ -652,7 +696,7 @@ static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
* "byte" address into a "word" address appropriate
* for indexing a word-oriented device
*/
- if (host->reg_ndcr & NDCR_DWIDTH_M)
+ if (info->reg_ndcr & NDCR_DWIDTH_M)
column /= 2;
/*
@@ -662,8 +706,8 @@ static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
*/
if (info->cs != host->cs) {
info->cs = host->cs;
- nand_writel(info, NDTR0CS0, host->ndtr0cs0);
- nand_writel(info, NDTR1CS0, host->ndtr1cs0);
+ nand_writel(info, NDTR0CS0, info->ndtr0cs0);
+ nand_writel(info, NDTR1CS0, info->ndtr1cs0);
}
info->state = STATE_PREPARED;
@@ -803,7 +847,7 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info,
const struct pxa3xx_nand_flash *f)
{
struct platform_device *pdev = info->pdev;
- struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data;
+ struct pxa3xx_nand_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct pxa3xx_nand_host *host = info->host[info->cs];
uint32_t ndcr = 0x0; /* enable all interrupts */
@@ -818,7 +862,6 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info,
}
/* calculate flash information */
- host->cmdset = &default_cmdset;
host->page_size = f->page_size;
host->read_id_bytes = (f->page_size == 2048) ? 4 : 2;
@@ -840,7 +883,7 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info,
ndcr |= NDCR_RD_ID_CNT(host->read_id_bytes);
ndcr |= NDCR_SPARE_EN; /* enable spare by default */
- host->reg_ndcr = ndcr;
+ info->reg_ndcr = ndcr;
pxa3xx_nand_set_timing(host, f->timing);
return 0;
@@ -863,12 +906,9 @@ static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info)
host->read_id_bytes = 2;
}
- host->reg_ndcr = ndcr & ~NDCR_INT_MASK;
- host->cmdset = &default_cmdset;
-
- host->ndtr0cs0 = nand_readl(info, NDTR0CS0);
- host->ndtr1cs0 = nand_readl(info, NDTR1CS0);
-
+ info->reg_ndcr = ndcr & ~NDCR_INT_MASK;
+ info->ndtr0cs0 = nand_readl(info, NDTR0CS0);
+ info->ndtr1cs0 = nand_readl(info, NDTR1CS0);
return 0;
}
@@ -878,6 +918,7 @@ static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info)
*/
#define MAX_BUFF_SIZE PAGE_SIZE
+#ifdef ARCH_HAS_DMA
static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info)
{
struct platform_device *pdev = info->pdev;
@@ -912,6 +953,32 @@ static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info)
return 0;
}
+static void pxa3xx_nand_free_buff(struct pxa3xx_nand_info *info)
+{
+ struct platform_device *pdev = info->pdev;
+ if (use_dma) {
+ pxa_free_dma(info->data_dma_ch);
+ dma_free_coherent(&pdev->dev, MAX_BUFF_SIZE,
+ info->data_buff, info->data_buff_phys);
+ } else {
+ kfree(info->data_buff);
+ }
+}
+#else
+static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info)
+{
+ info->data_buff = kmalloc(MAX_BUFF_SIZE, GFP_KERNEL);
+ if (info->data_buff == NULL)
+ return -ENOMEM;
+ return 0;
+}
+
+static void pxa3xx_nand_free_buff(struct pxa3xx_nand_info *info)
+{
+ kfree(info->data_buff);
+}
+#endif
+
static int pxa3xx_nand_sensing(struct pxa3xx_nand_info *info)
{
struct mtd_info *mtd;
@@ -934,7 +1001,7 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd)
struct pxa3xx_nand_host *host = mtd->priv;
struct pxa3xx_nand_info *info = host->info_data;
struct platform_device *pdev = info->pdev;
- struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data;
+ struct pxa3xx_nand_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct nand_flash_dev pxa3xx_flash_ids[2], *def = NULL;
const struct pxa3xx_nand_flash *f = NULL;
struct nand_chip *chip = mtd->priv;
@@ -1003,7 +1070,7 @@ KEEP_CONFIG:
chip->ecc.size = host->page_size;
chip->ecc.strength = 1;
- if (host->reg_ndcr & NDCR_DWIDTH_M)
+ if (info->reg_ndcr & NDCR_DWIDTH_M)
chip->options |= NAND_BUSWIDTH_16;
if (nand_scan_ident(mtd, 1, def))
@@ -1019,8 +1086,6 @@ KEEP_CONFIG:
host->row_addr_cycles = 3;
else
host->row_addr_cycles = 2;
-
- mtd->name = mtd_names[0];
return nand_scan_tail(mtd);
}
@@ -1034,13 +1099,11 @@ static int alloc_nand_resource(struct platform_device *pdev)
struct resource *r;
int ret, irq, cs;
- pdata = pdev->dev.platform_data;
- info = kzalloc(sizeof(*info) + (sizeof(*mtd) +
- sizeof(*host)) * pdata->num_cs, GFP_KERNEL);
- if (!info) {
- dev_err(&pdev->dev, "failed to allocate memory\n");
+ pdata = dev_get_platdata(&pdev->dev);
+ info = devm_kzalloc(&pdev->dev, sizeof(*info) + (sizeof(*mtd) +
+ sizeof(*host)) * pdata->num_cs, GFP_KERNEL);
+ if (!info)
return -ENOMEM;
- }
info->pdev = pdev;
for (cs = 0; cs < pdata->num_cs; cs++) {
@@ -1069,72 +1132,64 @@ static int alloc_nand_resource(struct platform_device *pdev)
spin_lock_init(&chip->controller->lock);
init_waitqueue_head(&chip->controller->wq);
- info->clk = clk_get(&pdev->dev, NULL);
+ info->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(info->clk)) {
dev_err(&pdev->dev, "failed to get nand clock\n");
- ret = PTR_ERR(info->clk);
- goto fail_free_mtd;
+ return PTR_ERR(info->clk);
}
- clk_enable(info->clk);
-
- /*
- * This is a dirty hack to make this driver work from devicetree
- * bindings. It can be removed once we have a prober DMA controller
- * framework for DT.
- */
- if (pdev->dev.of_node && cpu_is_pxa3xx()) {
- info->drcmr_dat = 97;
- info->drcmr_cmd = 99;
- } else {
- r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
- if (r == NULL) {
- dev_err(&pdev->dev, "no resource defined for data DMA\n");
- ret = -ENXIO;
- goto fail_put_clk;
- }
- info->drcmr_dat = r->start;
+ ret = clk_prepare_enable(info->clk);
+ if (ret < 0)
+ return ret;
- r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
- if (r == NULL) {
- dev_err(&pdev->dev, "no resource defined for command DMA\n");
- ret = -ENXIO;
- goto fail_put_clk;
+ if (use_dma) {
+ /*
+ * This is a dirty hack to make this driver work from
+ * devicetree bindings. It can be removed once we have
+ * a prober DMA controller framework for DT.
+ */
+ if (pdev->dev.of_node &&
+ of_machine_is_compatible("marvell,pxa3xx")) {
+ info->drcmr_dat = 97;
+ info->drcmr_cmd = 99;
+ } else {
+ r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (r == NULL) {
+ dev_err(&pdev->dev,
+ "no resource defined for data DMA\n");
+ ret = -ENXIO;
+ goto fail_disable_clk;
+ }
+ info->drcmr_dat = r->start;
+
+ r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+ if (r == NULL) {
+ dev_err(&pdev->dev,
+ "no resource defined for cmd DMA\n");
+ ret = -ENXIO;
+ goto fail_disable_clk;
+ }
+ info->drcmr_cmd = r->start;
}
- info->drcmr_cmd = r->start;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "no IRQ resource defined\n");
ret = -ENXIO;
- goto fail_put_clk;
+ goto fail_disable_clk;
}
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (r == NULL) {
- dev_err(&pdev->dev, "no IO memory resource defined\n");
- ret = -ENODEV;
- goto fail_put_clk;
- }
-
- r = request_mem_region(r->start, resource_size(r), pdev->name);
- if (r == NULL) {
- dev_err(&pdev->dev, "failed to request memory resource\n");
- ret = -EBUSY;
- goto fail_put_clk;
- }
-
- info->mmio_base = ioremap(r->start, resource_size(r));
- if (info->mmio_base == NULL) {
- dev_err(&pdev->dev, "ioremap() failed\n");
- ret = -ENODEV;
- goto fail_free_res;
+ info->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(info->mmio_base)) {
+ ret = PTR_ERR(info->mmio_base);
+ goto fail_disable_clk;
}
info->mmio_phys = r->start;
ret = pxa3xx_nand_init_buff(info);
if (ret)
- goto fail_free_io;
+ goto fail_disable_clk;
/* initialize all interrupts to be disabled */
disable_int(info, NDSR_MASK);
@@ -1152,21 +1207,9 @@ static int alloc_nand_resource(struct platform_device *pdev)
fail_free_buf:
free_irq(irq, info);
- if (use_dma) {
- pxa_free_dma(info->data_dma_ch);
- dma_free_coherent(&pdev->dev, MAX_BUFF_SIZE,
- info->data_buff, info->data_buff_phys);
- } else
- kfree(info->data_buff);
-fail_free_io:
- iounmap(info->mmio_base);
-fail_free_res:
- release_mem_region(r->start, resource_size(r));
-fail_put_clk:
- clk_disable(info->clk);
- clk_put(info->clk);
-fail_free_mtd:
- kfree(info);
+ pxa3xx_nand_free_buff(info);
+fail_disable_clk:
+ clk_disable_unprepare(info->clk);
return ret;
}
@@ -1174,44 +1217,48 @@ static int pxa3xx_nand_remove(struct platform_device *pdev)
{
struct pxa3xx_nand_info *info = platform_get_drvdata(pdev);
struct pxa3xx_nand_platform_data *pdata;
- struct resource *r;
int irq, cs;
if (!info)
return 0;
- pdata = pdev->dev.platform_data;
- platform_set_drvdata(pdev, NULL);
+ pdata = dev_get_platdata(&pdev->dev);
irq = platform_get_irq(pdev, 0);
if (irq >= 0)
free_irq(irq, info);
- if (use_dma) {
- pxa_free_dma(info->data_dma_ch);
- dma_free_writecombine(&pdev->dev, MAX_BUFF_SIZE,
- info->data_buff, info->data_buff_phys);
- } else
- kfree(info->data_buff);
-
- iounmap(info->mmio_base);
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(r->start, resource_size(r));
+ pxa3xx_nand_free_buff(info);
- clk_disable(info->clk);
- clk_put(info->clk);
+ clk_disable_unprepare(info->clk);
for (cs = 0; cs < pdata->num_cs; cs++)
nand_release(info->host[cs]->mtd);
- kfree(info);
return 0;
}
#ifdef CONFIG_OF
static struct of_device_id pxa3xx_nand_dt_ids[] = {
- { .compatible = "marvell,pxa3xx-nand" },
+ {
+ .compatible = "marvell,pxa3xx-nand",
+ .data = (void *)PXA3XX_NAND_VARIANT_PXA,
+ },
+ {
+ .compatible = "marvell,armada370-nand",
+ .data = (void *)PXA3XX_NAND_VARIANT_ARMADA370,
+ },
{}
};
-MODULE_DEVICE_TABLE(of, i2c_pxa_dt_ids);
+MODULE_DEVICE_TABLE(of, pxa3xx_nand_dt_ids);
+
+static enum pxa3xx_nand_variant
+pxa3xx_nand_get_variant(struct platform_device *pdev)
+{
+ const struct of_device_id *of_id =
+ of_match_device(pxa3xx_nand_dt_ids, &pdev->dev);
+ if (!of_id)
+ return PXA3XX_NAND_VARIANT_PXA;
+ return (enum pxa3xx_nand_variant)of_id->data;
+}
static int pxa3xx_nand_probe_dt(struct platform_device *pdev)
{
@@ -1251,11 +1298,18 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
struct pxa3xx_nand_info *info;
int ret, cs, probe_success;
+#ifndef ARCH_HAS_DMA
+ if (use_dma) {
+ use_dma = 0;
+ dev_warn(&pdev->dev,
+ "This platform can't do DMA on this device\n");
+ }
+#endif
ret = pxa3xx_nand_probe_dt(pdev);
if (ret)
return ret;
- pdata = pdev->dev.platform_data;
+ pdata = dev_get_platdata(&pdev->dev);
if (!pdata) {
dev_err(&pdev->dev, "no platform data defined\n");
return -ENODEV;
@@ -1268,10 +1322,14 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
}
info = platform_get_drvdata(pdev);
+ info->variant = pxa3xx_nand_get_variant(pdev);
probe_success = 0;
for (cs = 0; cs < pdata->num_cs; cs++) {
+ struct mtd_info *mtd = info->host[cs]->mtd;
+
+ mtd->name = pdev->name;
info->cs = cs;
- ret = pxa3xx_nand_scan(info->host[cs]->mtd);
+ ret = pxa3xx_nand_scan(mtd);
if (ret) {
dev_warn(&pdev->dev, "failed to scan nand at cs %d\n",
cs);
@@ -1279,7 +1337,7 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
}
ppdata.of_node = pdev->dev.of_node;
- ret = mtd_device_parse_register(info->host[cs]->mtd, NULL,
+ ret = mtd_device_parse_register(mtd, NULL,
&ppdata, pdata->parts[cs],
pdata->nr_parts[cs]);
if (!ret)
@@ -1302,7 +1360,7 @@ static int pxa3xx_nand_suspend(struct platform_device *pdev, pm_message_t state)
struct mtd_info *mtd;
int cs;
- pdata = pdev->dev.platform_data;
+ pdata = dev_get_platdata(&pdev->dev);
if (info->state) {
dev_err(&pdev->dev, "driver busy, state = %d\n", info->state);
return -EAGAIN;
@@ -1323,7 +1381,7 @@ static int pxa3xx_nand_resume(struct platform_device *pdev)
struct mtd_info *mtd;
int cs;
- pdata = pdev->dev.platform_data;
+ pdata = dev_get_platdata(&pdev->dev);
/* We don't want to handle interrupt without calling mtd routine */
disable_int(info, NDCR_INT_MASK);
diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c
index 4495f85..9dcf02d 100644
--- a/drivers/mtd/nand/r852.c
+++ b/drivers/mtd/nand/r852.c
@@ -229,7 +229,7 @@ static void r852_do_dma(struct r852_device *dev, uint8_t *buf, int do_read)
/*
* Program data lines of the nand chip to send data to it
*/
-void r852_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
+static void r852_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
{
struct r852_device *dev = r852_get_dev(mtd);
uint32_t reg;
@@ -261,7 +261,7 @@ void r852_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
/*
* Read data lines of the nand chip to retrieve data
*/
-void r852_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
+static void r852_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
{
struct r852_device *dev = r852_get_dev(mtd);
uint32_t reg;
@@ -312,7 +312,7 @@ static uint8_t r852_read_byte(struct mtd_info *mtd)
/*
* Control several chip lines & send commands
*/
-void r852_cmdctl(struct mtd_info *mtd, int dat, unsigned int ctrl)
+static void r852_cmdctl(struct mtd_info *mtd, int dat, unsigned int ctrl)
{
struct r852_device *dev = r852_get_dev(mtd);
@@ -357,7 +357,7 @@ void r852_cmdctl(struct mtd_info *mtd, int dat, unsigned int ctrl)
* Wait till card is ready.
* based on nand_wait, but returns errors on DMA error
*/
-int r852_wait(struct mtd_info *mtd, struct nand_chip *chip)
+static int r852_wait(struct mtd_info *mtd, struct nand_chip *chip)
{
struct r852_device *dev = chip->priv;
@@ -386,7 +386,7 @@ int r852_wait(struct mtd_info *mtd, struct nand_chip *chip)
* Check if card is ready
*/
-int r852_ready(struct mtd_info *mtd)
+static int r852_ready(struct mtd_info *mtd)
{
struct r852_device *dev = r852_get_dev(mtd);
return !(r852_read_reg(dev, R852_CARD_STA) & R852_CARD_STA_BUSY);
@@ -397,7 +397,7 @@ int r852_ready(struct mtd_info *mtd)
* Set ECC engine mode
*/
-void r852_ecc_hwctl(struct mtd_info *mtd, int mode)
+static void r852_ecc_hwctl(struct mtd_info *mtd, int mode)
{
struct r852_device *dev = r852_get_dev(mtd);
@@ -429,7 +429,7 @@ void r852_ecc_hwctl(struct mtd_info *mtd, int mode)
* Calculate ECC, only used for writes
*/
-int r852_ecc_calculate(struct mtd_info *mtd, const uint8_t *dat,
+static int r852_ecc_calculate(struct mtd_info *mtd, const uint8_t *dat,
uint8_t *ecc_code)
{
struct r852_device *dev = r852_get_dev(mtd);
@@ -461,7 +461,7 @@ int r852_ecc_calculate(struct mtd_info *mtd, const uint8_t *dat,
* Correct the data using ECC, hw did almost everything for us
*/
-int r852_ecc_correct(struct mtd_info *mtd, uint8_t *dat,
+static int r852_ecc_correct(struct mtd_info *mtd, uint8_t *dat,
uint8_t *read_ecc, uint8_t *calc_ecc)
{
uint16_t ecc_reg;
@@ -529,7 +529,7 @@ static int r852_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
* Start the nand engine
*/
-void r852_engine_enable(struct r852_device *dev)
+static void r852_engine_enable(struct r852_device *dev)
{
if (r852_read_reg_dword(dev, R852_HW) & R852_HW_UNKNOWN) {
r852_write_reg(dev, R852_CTL, R852_CTL_RESET | R852_CTL_ON);
@@ -547,7 +547,7 @@ void r852_engine_enable(struct r852_device *dev)
* Stop the nand engine
*/
-void r852_engine_disable(struct r852_device *dev)
+static void r852_engine_disable(struct r852_device *dev)
{
r852_write_reg_dword(dev, R852_HW, 0);
r852_write_reg(dev, R852_CTL, R852_CTL_RESET);
@@ -557,7 +557,7 @@ void r852_engine_disable(struct r852_device *dev)
* Test if card is present
*/
-void r852_card_update_present(struct r852_device *dev)
+static void r852_card_update_present(struct r852_device *dev)
{
unsigned long flags;
uint8_t reg;
@@ -572,7 +572,7 @@ void r852_card_update_present(struct r852_device *dev)
* Update card detection IRQ state according to current card state
* which is read in r852_card_update_present
*/
-void r852_update_card_detect(struct r852_device *dev)
+static void r852_update_card_detect(struct r852_device *dev)
{
int card_detect_reg = r852_read_reg(dev, R852_CARD_IRQ_ENABLE);
dev->card_unstable = 0;
@@ -586,8 +586,8 @@ void r852_update_card_detect(struct r852_device *dev)
r852_write_reg(dev, R852_CARD_IRQ_ENABLE, card_detect_reg);
}
-ssize_t r852_media_type_show(struct device *sys_dev,
- struct device_attribute *attr, char *buf)
+static ssize_t r852_media_type_show(struct device *sys_dev,
+ struct device_attribute *attr, char *buf)
{
struct mtd_info *mtd = container_of(sys_dev, struct mtd_info, dev);
struct r852_device *dev = r852_get_dev(mtd);
@@ -597,11 +597,11 @@ ssize_t r852_media_type_show(struct device *sys_dev,
return strlen(data);
}
-DEVICE_ATTR(media_type, S_IRUGO, r852_media_type_show, NULL);
+static DEVICE_ATTR(media_type, S_IRUGO, r852_media_type_show, NULL);
/* Detect properties of card in slot */
-void r852_update_media_status(struct r852_device *dev)
+static void r852_update_media_status(struct r852_device *dev)
{
uint8_t reg;
unsigned long flags;
@@ -630,7 +630,7 @@ void r852_update_media_status(struct r852_device *dev)
* Register the nand device
* Called when the card is detected
*/
-int r852_register_nand_device(struct r852_device *dev)
+static int r852_register_nand_device(struct r852_device *dev)
{
dev->mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL);
@@ -668,7 +668,7 @@ error1:
* Unregister the card
*/
-void r852_unregister_nand_device(struct r852_device *dev)
+static void r852_unregister_nand_device(struct r852_device *dev)
{
if (!dev->card_registred)
return;
@@ -682,7 +682,7 @@ void r852_unregister_nand_device(struct r852_device *dev)
}
/* Card state updater */
-void r852_card_detect_work(struct work_struct *work)
+static void r852_card_detect_work(struct work_struct *work)
{
struct r852_device *dev =
container_of(work, struct r852_device, card_detect_work.work);
@@ -821,7 +821,7 @@ out:
return ret;
}
-int r852_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
+static int r852_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
{
int error;
struct nand_chip *chip;
@@ -961,7 +961,7 @@ error1:
return error;
}
-void r852_remove(struct pci_dev *pci_dev)
+static void r852_remove(struct pci_dev *pci_dev)
{
struct r852_device *dev = pci_get_drvdata(pci_dev);
@@ -992,7 +992,7 @@ void r852_remove(struct pci_dev *pci_dev)
pci_disable_device(pci_dev);
}
-void r852_shutdown(struct pci_dev *pci_dev)
+static void r852_shutdown(struct pci_dev *pci_dev)
{
struct r852_device *dev = pci_get_drvdata(pci_dev);
@@ -1002,7 +1002,7 @@ void r852_shutdown(struct pci_dev *pci_dev)
pci_disable_device(pci_dev);
}
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int r852_suspend(struct device *device)
{
struct r852_device *dev = pci_get_drvdata(to_pci_dev(device));
@@ -1055,9 +1055,6 @@ static int r852_resume(struct device *device)
r852_update_card_detect(dev);
return 0;
}
-#else
-#define r852_suspend NULL
-#define r852_resume NULL
#endif
static const struct pci_device_id r852_pci_id_tbl[] = {
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index d65afd2..d65cbe9 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -150,7 +150,7 @@ static struct s3c2410_nand_info *to_nand_info(struct platform_device *dev)
static struct s3c2410_platform_nand *to_nand_plat(struct platform_device *dev)
{
- return dev->dev.platform_data;
+ return dev_get_platdata(&dev->dev);
}
static inline int allow_clk_suspend(struct s3c2410_nand_info *info)
@@ -697,8 +697,6 @@ static int s3c24xx_nand_remove(struct platform_device *pdev)
{
struct s3c2410_nand_info *info = to_nand_info(pdev);
- platform_set_drvdata(pdev, NULL);
-
if (info == NULL)
return 0;
diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index e57e18e..a3c84eb 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -137,7 +137,7 @@ static void flctl_setup_dma(struct sh_flctl *flctl)
dma_cap_mask_t mask;
struct dma_slave_config cfg;
struct platform_device *pdev = flctl->pdev;
- struct sh_flctl_platform_data *pdata = pdev->dev.platform_data;
+ struct sh_flctl_platform_data *pdata = dev_get_platdata(&pdev->dev);
int ret;
if (!pdata)
@@ -1131,7 +1131,7 @@ static int flctl_probe(struct platform_device *pdev)
if (pdev->dev.of_node)
pdata = flctl_parse_dt(&pdev->dev);
else
- pdata = pdev->dev.platform_data;
+ pdata = dev_get_platdata(&pdev->dev);
if (!pdata) {
dev_err(&pdev->dev, "no setup data defined\n");
diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c
index 127bc42..87908d7 100644
--- a/drivers/mtd/nand/sharpsl.c
+++ b/drivers/mtd/nand/sharpsl.c
@@ -112,7 +112,7 @@ static int sharpsl_nand_probe(struct platform_device *pdev)
struct resource *r;
int err = 0;
struct sharpsl_nand *sharpsl;
- struct sharpsl_nand_platform_data *data = pdev->dev.platform_data;
+ struct sharpsl_nand_platform_data *data = dev_get_platdata(&pdev->dev);
if (!data) {
dev_err(&pdev->dev, "no platform data!\n");
@@ -194,7 +194,6 @@ err_add:
nand_release(&sharpsl->mtd);
err_scan:
- platform_set_drvdata(pdev, NULL);
iounmap(sharpsl->io);
err_ioremap:
err_get_res:
@@ -212,8 +211,6 @@ static int sharpsl_nand_remove(struct platform_device *pdev)
/* Release resources, unregister device */
nand_release(&sharpsl->mtd);
- platform_set_drvdata(pdev, NULL);
-
iounmap(sharpsl->io);
/* Free the MTD device structure */
diff --git a/drivers/mtd/nand/sm_common.c b/drivers/mtd/nand/sm_common.c
index e8181ed..e06b5e5 100644
--- a/drivers/mtd/nand/sm_common.c
+++ b/drivers/mtd/nand/sm_common.c
@@ -42,7 +42,7 @@ static int sm_block_markbad(struct mtd_info *mtd, loff_t ofs)
{
struct mtd_oob_ops ops;
struct sm_oob oob;
- int ret, error = 0;
+ int ret;
memset(&oob, -1, SM_OOB_SIZE);
oob.block_status = 0x0F;
@@ -61,11 +61,10 @@ static int sm_block_markbad(struct mtd_info *mtd, loff_t ofs)
printk(KERN_NOTICE
"sm_common: can't mark sector at %i as bad\n",
(int)ofs);
- error = -EIO;
- } else
- mtd->ecc_stats.badblocks++;
+ return -EIO;
+ }
- return error;
+ return 0;
}
static struct nand_flash_dev nand_smartmedia_flash_ids[] = {
diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c
index 508e9e0..396530d 100644
--- a/drivers/mtd/nand/tmio_nand.c
+++ b/drivers/mtd/nand/tmio_nand.c
@@ -357,7 +357,7 @@ static void tmio_hw_stop(struct platform_device *dev, struct tmio_nand *tmio)
static int tmio_probe(struct platform_device *dev)
{
- struct tmio_nand_data *data = dev->dev.platform_data;
+ struct tmio_nand_data *data = dev_get_platdata(&dev->dev);
struct resource *fcr = platform_get_resource(dev,
IORESOURCE_MEM, 0);
struct resource *ccr = platform_get_resource(dev,
diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c
index 7ed654c..235714a 100644
--- a/drivers/mtd/nand/txx9ndfmc.c
+++ b/drivers/mtd/nand/txx9ndfmc.c
@@ -87,7 +87,7 @@ static struct platform_device *mtd_to_platdev(struct mtd_info *mtd)
static void __iomem *ndregaddr(struct platform_device *dev, unsigned int reg)
{
struct txx9ndfmc_drvdata *drvdata = platform_get_drvdata(dev);
- struct txx9ndfmc_platform_data *plat = dev->dev.platform_data;
+ struct txx9ndfmc_platform_data *plat = dev_get_platdata(&dev->dev);
return drvdata->base + (reg << plat->shift);
}
@@ -138,7 +138,7 @@ static void txx9ndfmc_cmd_ctrl(struct mtd_info *mtd, int cmd,
struct nand_chip *chip = mtd->priv;
struct txx9ndfmc_priv *txx9_priv = chip->priv;
struct platform_device *dev = txx9_priv->dev;
- struct txx9ndfmc_platform_data *plat = dev->dev.platform_data;
+ struct txx9ndfmc_platform_data *plat = dev_get_platdata(&dev->dev);
if (ctrl & NAND_CTRL_CHANGE) {
u32 mcr = txx9ndfmc_read(dev, TXX9_NDFMCR);
@@ -225,7 +225,7 @@ static void txx9ndfmc_enable_hwecc(struct mtd_info *mtd, int mode)
static void txx9ndfmc_initialize(struct platform_device *dev)
{
- struct txx9ndfmc_platform_data *plat = dev->dev.platform_data;
+ struct txx9ndfmc_platform_data *plat = dev_get_platdata(&dev->dev);
struct txx9ndfmc_drvdata *drvdata = platform_get_drvdata(dev);
int tmout = 100;
@@ -274,19 +274,17 @@ static int txx9ndfmc_nand_scan(struct mtd_info *mtd)
static int __init txx9ndfmc_probe(struct platform_device *dev)
{
- struct txx9ndfmc_platform_data *plat = dev->dev.platform_data;
+ struct txx9ndfmc_platform_data *plat = dev_get_platdata(&dev->dev);
int hold, spw;
int i;
struct txx9ndfmc_drvdata *drvdata;
unsigned long gbusclk = plat->gbus_clock;
struct resource *res;
- res = platform_get_resource(dev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENODEV;
drvdata = devm_kzalloc(&dev->dev, sizeof(*drvdata), GFP_KERNEL);
if (!drvdata)
return -ENOMEM;
+ res = platform_get_resource(dev, IORESOURCE_MEM, 0);
drvdata->base = devm_ioremap_resource(&dev->dev, res);
if (IS_ERR(drvdata->base))
return PTR_ERR(drvdata->base);
@@ -387,7 +385,6 @@ static int __exit txx9ndfmc_remove(struct platform_device *dev)
struct txx9ndfmc_drvdata *drvdata = platform_get_drvdata(dev);
int i;
- platform_set_drvdata(dev, NULL);
if (!drvdata)
return 0;
for (i = 0; i < MAX_TXX9NDFMC_DEV; i++) {
diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c
index 553d6d6..d64f8c3 100644
--- a/drivers/mtd/ofpart.c
+++ b/drivers/mtd/ofpart.c
@@ -20,6 +20,11 @@
#include <linux/slab.h>
#include <linux/mtd/partitions.h>
+static bool node_has_compatible(struct device_node *pp)
+{
+ return of_get_property(pp, "compatible", NULL);
+}
+
static int parse_ofpart_partitions(struct mtd_info *master,
struct mtd_partition **pparts,
struct mtd_part_parser_data *data)
@@ -38,10 +43,13 @@ static int parse_ofpart_partitions(struct mtd_info *master,
return 0;
/* First count the subnodes */
- pp = NULL;
nr_parts = 0;
- while ((pp = of_get_next_child(node, pp)))
+ for_each_child_of_node(node, pp) {
+ if (node_has_compatible(pp))
+ continue;
+
nr_parts++;
+ }
if (nr_parts == 0)
return 0;
@@ -50,13 +58,15 @@ static int parse_ofpart_partitions(struct mtd_info *master,
if (!*pparts)
return -ENOMEM;
- pp = NULL;
i = 0;
- while ((pp = of_get_next_child(node, pp))) {
+ for_each_child_of_node(node, pp) {
const __be32 *reg;
int len;
int a_cells, s_cells;
+ if (node_has_compatible(pp))
+ continue;
+
reg = of_get_property(pp, "reg", &len);
if (!reg) {
nr_parts--;
diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c
index 9f11562..63699ff 100644
--- a/drivers/mtd/onenand/generic.c
+++ b/drivers/mtd/onenand/generic.c
@@ -38,7 +38,7 @@ struct onenand_info {
static int generic_onenand_probe(struct platform_device *pdev)
{
struct onenand_info *info;
- struct onenand_platform_data *pdata = pdev->dev.platform_data;
+ struct onenand_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct resource *res = pdev->resource;
unsigned long size = resource_size(res);
int err;
@@ -94,8 +94,6 @@ static int generic_onenand_remove(struct platform_device *pdev)
struct resource *res = pdev->resource;
unsigned long size = resource_size(res);
- platform_set_drvdata(pdev, NULL);
-
if (info) {
onenand_release(&info->mtd);
release_mem_region(res->start, size);
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index d98b198..558071b 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -639,7 +639,7 @@ static int omap2_onenand_probe(struct platform_device *pdev)
struct resource *res;
struct mtd_part_parser_data ppdata = {};
- pdata = pdev->dev.platform_data;
+ pdata = dev_get_platdata(&pdev->dev);
if (pdata == NULL) {
dev_err(&pdev->dev, "platform data missing\n");
return -ENODEV;
@@ -810,7 +810,6 @@ static int omap2_onenand_remove(struct platform_device *pdev)
if (c->dma_channel != -1)
omap_free_dma(c->dma_channel);
omap2_onenand_shutdown(pdev);
- platform_set_drvdata(pdev, NULL);
if (c->gpio_irq) {
free_irq(gpio_to_irq(c->gpio_irq), c);
gpio_free(c->gpio_irq);
diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c
index 66fe3b7..08d0085 100644
--- a/drivers/mtd/onenand/onenand_bbt.c
+++ b/drivers/mtd/onenand/onenand_bbt.c
@@ -133,7 +133,6 @@ static inline int onenand_memory_bbt (struct mtd_info *mtd, struct nand_bbt_desc
{
struct onenand_chip *this = mtd->priv;
- bd->options &= ~NAND_BBT_SCANEMPTY;
return create_bbt(mtd, this->page_buf, bd, -1);
}
diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c
index 2cf7408..df7400d 100644
--- a/drivers/mtd/onenand/samsung.c
+++ b/drivers/mtd/onenand/samsung.c
@@ -867,7 +867,7 @@ static int s3c_onenand_probe(struct platform_device *pdev)
struct resource *r;
int size, err;
- pdata = pdev->dev.platform_data;
+ pdata = dev_get_platdata(&pdev->dev);
/* No need to check pdata. the platform data is optional */
size = sizeof(struct mtd_info) + sizeof(struct onenand_chip);
@@ -1073,7 +1073,6 @@ static int s3c_onenand_remove(struct platform_device *pdev)
release_mem_region(onenand->base_res->start,
resource_size(onenand->base_res));
- platform_set_drvdata(pdev, NULL);
kfree(onenand->oob_buf);
kfree(onenand->page_buf);
kfree(onenand);
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index f9d5615..4b8e895 100644
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -22,7 +22,7 @@
-struct workqueue_struct *cache_flush_workqueue;
+static struct workqueue_struct *cache_flush_workqueue;
static int cache_timeout = 1000;
module_param(cache_timeout, int, S_IRUGO);
@@ -41,7 +41,7 @@ struct sm_sysfs_attribute {
int len;
};
-ssize_t sm_attr_show(struct device *dev, struct device_attribute *attr,
+static ssize_t sm_attr_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct sm_sysfs_attribute *sm_attr =
@@ -54,7 +54,7 @@ ssize_t sm_attr_show(struct device *dev, struct device_attribute *attr,
#define NUM_ATTRIBUTES 1
#define SM_CIS_VENDOR_OFFSET 0x59
-struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl)
+static struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl)
{
struct attribute_group *attr_group;
struct attribute **attributes;
@@ -107,7 +107,7 @@ error1:
return NULL;
}
-void sm_delete_sysfs_attributes(struct sm_ftl *ftl)
+static void sm_delete_sysfs_attributes(struct sm_ftl *ftl)
{
struct attribute **attributes = ftl->disk_attributes->attrs;
int i;
@@ -571,7 +571,7 @@ static const uint8_t cis_signature[] = {
};
/* Find out media parameters.
* This ideally has to be based on nand id, but for now device size is enough */
-int sm_get_media_info(struct sm_ftl *ftl, struct mtd_info *mtd)
+static int sm_get_media_info(struct sm_ftl *ftl, struct mtd_info *mtd)
{
int i;
int size_in_megs = mtd->size / (1024 * 1024);
@@ -878,7 +878,7 @@ static int sm_init_zone(struct sm_ftl *ftl, int zone_num)
}
/* Get and automatically initialize an FTL mapping for one zone */
-struct ftl_zone *sm_get_zone(struct sm_ftl *ftl, int zone_num)
+static struct ftl_zone *sm_get_zone(struct sm_ftl *ftl, int zone_num)
{
struct ftl_zone *zone;
int error;
@@ -899,7 +899,7 @@ struct ftl_zone *sm_get_zone(struct sm_ftl *ftl, int zone_num)
/* ----------------- cache handling ------------------------------------------*/
/* Initialize the one block cache */
-void sm_cache_init(struct sm_ftl *ftl)
+static void sm_cache_init(struct sm_ftl *ftl)
{
ftl->cache_data_invalid_bitmap = 0xFFFFFFFF;
ftl->cache_clean = 1;
@@ -909,7 +909,7 @@ void sm_cache_init(struct sm_ftl *ftl)
}
/* Put sector in one block cache */
-void sm_cache_put(struct sm_ftl *ftl, char *buffer, int boffset)
+static void sm_cache_put(struct sm_ftl *ftl, char *buffer, int boffset)
{
memcpy(ftl->cache_data + boffset, buffer, SM_SECTOR_SIZE);
clear_bit(boffset / SM_SECTOR_SIZE, &ftl->cache_data_invalid_bitmap);
@@ -917,7 +917,7 @@ void sm_cache_put(struct sm_ftl *ftl, char *buffer, int boffset)
}
/* Read a sector from the cache */
-int sm_cache_get(struct sm_ftl *ftl, char *buffer, int boffset)
+static int sm_cache_get(struct sm_ftl *ftl, char *buffer, int boffset)
{
if (test_bit(boffset / SM_SECTOR_SIZE,
&ftl->cache_data_invalid_bitmap))
@@ -928,7 +928,7 @@ int sm_cache_get(struct sm_ftl *ftl, char *buffer, int boffset)
}
/* Write the cache to hardware */
-int sm_cache_flush(struct sm_ftl *ftl)
+static int sm_cache_flush(struct sm_ftl *ftl)
{
struct ftl_zone *zone;
@@ -1274,10 +1274,10 @@ static struct mtd_blktrans_ops sm_ftl_ops = {
static __init int sm_module_init(void)
{
int error = 0;
- cache_flush_workqueue = create_freezable_workqueue("smflush");
- if (IS_ERR(cache_flush_workqueue))
- return PTR_ERR(cache_flush_workqueue);
+ cache_flush_workqueue = create_freezable_workqueue("smflush");
+ if (!cache_flush_workqueue)
+ return -ENOMEM;
error = register_mtd_blktrans(&sm_ftl_ops);
if (error)
diff --git a/drivers/mtd/tests/Makefile b/drivers/mtd/tests/Makefile
index bd0065c0..937a829 100644
--- a/drivers/mtd/tests/Makefile
+++ b/drivers/mtd/tests/Makefile
@@ -7,3 +7,12 @@ obj-$(CONFIG_MTD_TESTS) += mtd_subpagetest.o
obj-$(CONFIG_MTD_TESTS) += mtd_torturetest.o
obj-$(CONFIG_MTD_TESTS) += mtd_nandecctest.o
obj-$(CONFIG_MTD_TESTS) += mtd_nandbiterrs.o
+
+mtd_oobtest-objs := oobtest.o mtd_test.o
+mtd_pagetest-objs := pagetest.o mtd_test.o
+mtd_readtest-objs := readtest.o mtd_test.o
+mtd_speedtest-objs := speedtest.o mtd_test.o
+mtd_stresstest-objs := stresstest.o mtd_test.o
+mtd_subpagetest-objs := subpagetest.o mtd_test.o
+mtd_torturetest-objs := torturetest.o mtd_test.o
+mtd_nandbiterrs-objs := nandbiterrs.o mtd_test.o
diff --git a/drivers/mtd/tests/mtd_test.c b/drivers/mtd/tests/mtd_test.c
new file mode 100644
index 0000000..c818a63
--- /dev/null
+++ b/drivers/mtd/tests/mtd_test.c
@@ -0,0 +1,114 @@
+#define pr_fmt(fmt) "mtd_test: " fmt
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/printk.h>
+
+#include "mtd_test.h"
+
+int mtdtest_erase_eraseblock(struct mtd_info *mtd, unsigned int ebnum)
+{
+ int err;
+ struct erase_info ei;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ memset(&ei, 0, sizeof(struct erase_info));
+ ei.mtd = mtd;
+ ei.addr = addr;
+ ei.len = mtd->erasesize;
+
+ err = mtd_erase(mtd, &ei);
+ if (err) {
+ pr_info("error %d while erasing EB %d\n", err, ebnum);
+ return err;
+ }
+
+ if (ei.state == MTD_ERASE_FAILED) {
+ pr_info("some erase error occurred at EB %d\n", ebnum);
+ return -EIO;
+ }
+ return 0;
+}
+
+static int is_block_bad(struct mtd_info *mtd, unsigned int ebnum)
+{
+ int ret;
+ loff_t addr = ebnum * mtd->erasesize;
+
+ ret = mtd_block_isbad(mtd, addr);
+ if (ret)
+ pr_info("block %d is bad\n", ebnum);
+
+ return ret;
+}
+
+int mtdtest_scan_for_bad_eraseblocks(struct mtd_info *mtd, unsigned char *bbt,
+ unsigned int eb, int ebcnt)
+{
+ int i, bad = 0;
+
+ if (!mtd_can_have_bb(mtd))
+ return 0;
+
+ pr_info("scanning for bad eraseblocks\n");
+ for (i = 0; i < ebcnt; ++i) {
+ bbt[i] = is_block_bad(mtd, eb + i) ? 1 : 0;
+ if (bbt[i])
+ bad += 1;
+ cond_resched();
+ }
+ pr_info("scanned %d eraseblocks, %d are bad\n", i, bad);
+
+ return 0;
+}
+
+int mtdtest_erase_good_eraseblocks(struct mtd_info *mtd, unsigned char *bbt,
+ unsigned int eb, int ebcnt)
+{
+ int err;
+ unsigned int i;
+
+ for (i = 0; i < ebcnt; ++i) {
+ if (bbt[i])
+ continue;
+ err = mtdtest_erase_eraseblock(mtd, eb + i);
+ if (err)
+ return err;
+ cond_resched();
+ }
+
+ return 0;
+}
+
+int mtdtest_read(struct mtd_info *mtd, loff_t addr, size_t size, void *buf)
+{
+ size_t read;
+ int err;
+
+ err = mtd_read(mtd, addr, size, &read, buf);
+ /* Ignore corrected ECC errors */
+ if (mtd_is_bitflip(err))
+ err = 0;
+ if (!err && read != size)
+ err = -EIO;
+ if (err)
+ pr_err("error: read failed at %#llx\n", addr);
+
+ return err;
+}
+
+int mtdtest_write(struct mtd_info *mtd, loff_t addr, size_t size,
+ const void *buf)
+{
+ size_t written;
+ int err;
+
+ err = mtd_write(mtd, addr, size, &written, buf);
+ if (!err && written != size)
+ err = -EIO;
+ if (err)
+ pr_err("error: write failed at %#llx\n", addr);
+
+ return err;
+}
diff --git a/drivers/mtd/tests/mtd_test.h b/drivers/mtd/tests/mtd_test.h
new file mode 100644
index 0000000..f437c77
--- /dev/null
+++ b/drivers/mtd/tests/mtd_test.h
@@ -0,0 +1,11 @@
+#include <linux/mtd/mtd.h>
+
+int mtdtest_erase_eraseblock(struct mtd_info *mtd, unsigned int ebnum);
+int mtdtest_scan_for_bad_eraseblocks(struct mtd_info *mtd, unsigned char *bbt,
+ unsigned int eb, int ebcnt);
+int mtdtest_erase_good_eraseblocks(struct mtd_info *mtd, unsigned char *bbt,
+ unsigned int eb, int ebcnt);
+
+int mtdtest_read(struct mtd_info *mtd, loff_t addr, size_t size, void *buf);
+int mtdtest_write(struct mtd_info *mtd, loff_t addr, size_t size,
+ const void *buf);
diff --git a/drivers/mtd/tests/mtd_nandbiterrs.c b/drivers/mtd/tests/nandbiterrs.c
index 207bf9a..3cd3aab 100644
--- a/drivers/mtd/tests/mtd_nandbiterrs.c
+++ b/drivers/mtd/tests/nandbiterrs.c
@@ -49,6 +49,7 @@
#include <linux/err.h>
#include <linux/mtd/nand.h>
#include <linux/slab.h>
+#include "mtd_test.h"
static int dev;
module_param(dev, int, S_IRUGO);
@@ -98,47 +99,13 @@ static uint8_t hash(unsigned offset)
return c;
}
-static int erase_block(void)
-{
- int err;
- struct erase_info ei;
- loff_t addr = eraseblock * mtd->erasesize;
-
- pr_info("erase_block\n");
-
- memset(&ei, 0, sizeof(struct erase_info));
- ei.mtd = mtd;
- ei.addr = addr;
- ei.len = mtd->erasesize;
-
- err = mtd_erase(mtd, &ei);
- if (err || ei.state == MTD_ERASE_FAILED) {
- pr_err("error %d while erasing\n", err);
- if (!err)
- err = -EIO;
- return err;
- }
-
- return 0;
-}
-
/* Writes wbuffer to page */
static int write_page(int log)
{
- int err = 0;
- size_t written;
-
if (log)
pr_info("write_page\n");
- err = mtd_write(mtd, offset, mtd->writesize, &written, wbuffer);
- if (err || written != mtd->writesize) {
- pr_err("error: write failed at %#llx\n", (long long)offset);
- if (!err)
- err = -EIO;
- }
-
- return err;
+ return mtdtest_write(mtd, offset, mtd->writesize, wbuffer);
}
/* Re-writes the data area while leaving the OOB alone. */
@@ -415,7 +382,7 @@ static int __init mtd_nandbiterrs_init(void)
goto exit_rbuffer;
}
- err = erase_block();
+ err = mtdtest_erase_eraseblock(mtd, eraseblock);
if (err)
goto exit_error;
@@ -428,7 +395,7 @@ static int __init mtd_nandbiterrs_init(void)
goto exit_error;
/* We leave the block un-erased in case of test failure. */
- err = erase_block();
+ err = mtdtest_erase_eraseblock(mtd, eraseblock);
if (err)
goto exit_error;
diff --git a/drivers/mtd/tests/mtd_oobtest.c b/drivers/mtd/tests/oobtest.c
index 3e24b37..ff35c46 100644
--- a/drivers/mtd/tests/mtd_oobtest.c
+++ b/drivers/mtd/tests/oobtest.c
@@ -31,6 +31,8 @@
#include <linux/sched.h>
#include <linux/random.h>
+#include "mtd_test.h"
+
static int dev = -EINVAL;
module_param(dev, int, S_IRUGO);
MODULE_PARM_DESC(dev, "MTD device number to use");
@@ -49,49 +51,6 @@ static int use_len_max;
static int vary_offset;
static struct rnd_state rnd_state;
-static int erase_eraseblock(int ebnum)
-{
- int err;
- struct erase_info ei;
- loff_t addr = ebnum * mtd->erasesize;
-
- memset(&ei, 0, sizeof(struct erase_info));
- ei.mtd = mtd;
- ei.addr = addr;
- ei.len = mtd->erasesize;
-
- err = mtd_erase(mtd, &ei);
- if (err) {
- pr_err("error %d while erasing EB %d\n", err, ebnum);
- return err;
- }
-
- if (ei.state == MTD_ERASE_FAILED) {
- pr_err("some erase error occurred at EB %d\n", ebnum);
- return -EIO;
- }
-
- return 0;
-}
-
-static int erase_whole_device(void)
-{
- int err;
- unsigned int i;
-
- pr_info("erasing whole device\n");
- for (i = 0; i < ebcnt; ++i) {
- if (bbt[i])
- continue;
- err = erase_eraseblock(i);
- if (err)
- return err;
- cond_resched();
- }
- pr_info("erased %u eraseblocks\n", i);
- return 0;
-}
-
static void do_vary_offset(void)
{
use_len -= 1;
@@ -304,38 +263,6 @@ static int verify_all_eraseblocks(void)
return 0;
}
-static int is_block_bad(int ebnum)
-{
- int ret;
- loff_t addr = ebnum * mtd->erasesize;
-
- ret = mtd_block_isbad(mtd, addr);
- if (ret)
- pr_info("block %d is bad\n", ebnum);
- return ret;
-}
-
-static int scan_for_bad_eraseblocks(void)
-{
- int i, bad = 0;
-
- bbt = kmalloc(ebcnt, GFP_KERNEL);
- if (!bbt) {
- pr_err("error: cannot allocate memory\n");
- return -ENOMEM;
- }
-
- pr_info("scanning for bad eraseblocks\n");
- for (i = 0; i < ebcnt; ++i) {
- bbt[i] = is_block_bad(i) ? 1 : 0;
- if (bbt[i])
- bad += 1;
- cond_resched();
- }
- pr_info("scanned %d eraseblocks, %d are bad\n", i, bad);
- return 0;
-}
-
static int __init mtd_oobtest_init(void)
{
int err = 0;
@@ -380,17 +307,16 @@ static int __init mtd_oobtest_init(void)
err = -ENOMEM;
readbuf = kmalloc(mtd->erasesize, GFP_KERNEL);
- if (!readbuf) {
- pr_err("error: cannot allocate memory\n");
+ if (!readbuf)
goto out;
- }
writebuf = kmalloc(mtd->erasesize, GFP_KERNEL);
- if (!writebuf) {
- pr_err("error: cannot allocate memory\n");
+ if (!writebuf)
+ goto out;
+ bbt = kzalloc(ebcnt, GFP_KERNEL);
+ if (!bbt)
goto out;
- }
- err = scan_for_bad_eraseblocks();
+ err = mtdtest_scan_for_bad_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
@@ -402,7 +328,7 @@ static int __init mtd_oobtest_init(void)
/* First test: write all OOB, read it back and verify */
pr_info("test 1 of 5\n");
- err = erase_whole_device();
+ err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
@@ -422,7 +348,7 @@ static int __init mtd_oobtest_init(void)
*/
pr_info("test 2 of 5\n");
- err = erase_whole_device();
+ err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
@@ -452,7 +378,7 @@ static int __init mtd_oobtest_init(void)
*/
pr_info("test 3 of 5\n");
- err = erase_whole_device();
+ err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
@@ -485,7 +411,7 @@ static int __init mtd_oobtest_init(void)
/* Fourth test: try to write off end of device */
pr_info("test 4 of 5\n");
- err = erase_whole_device();
+ err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
@@ -577,7 +503,7 @@ static int __init mtd_oobtest_init(void)
errcnt += 1;
}
- err = erase_eraseblock(ebcnt - 1);
+ err = mtdtest_erase_eraseblock(mtd, ebcnt - 1);
if (err)
goto out;
@@ -626,7 +552,7 @@ static int __init mtd_oobtest_init(void)
pr_info("test 5 of 5\n");
/* Erase all eraseblocks */
- err = erase_whole_device();
+ err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
diff --git a/drivers/mtd/tests/mtd_pagetest.c b/drivers/mtd/tests/pagetest.c
index 0c1140b..44b96e9 100644
--- a/drivers/mtd/tests/mtd_pagetest.c
+++ b/drivers/mtd/tests/pagetest.c
@@ -31,6 +31,8 @@
#include <linux/sched.h>
#include <linux/random.h>
+#include "mtd_test.h"
+
static int dev = -EINVAL;
module_param(dev, int, S_IRUGO);
MODULE_PARM_DESC(dev, "MTD device number to use");
@@ -48,52 +50,18 @@ static int pgcnt;
static int errcnt;
static struct rnd_state rnd_state;
-static int erase_eraseblock(int ebnum)
-{
- int err;
- struct erase_info ei;
- loff_t addr = ebnum * mtd->erasesize;
-
- memset(&ei, 0, sizeof(struct erase_info));
- ei.mtd = mtd;
- ei.addr = addr;
- ei.len = mtd->erasesize;
-
- err = mtd_erase(mtd, &ei);
- if (err) {
- pr_err("error %d while erasing EB %d\n", err, ebnum);
- return err;
- }
-
- if (ei.state == MTD_ERASE_FAILED) {
- pr_err("some erase error occurred at EB %d\n",
- ebnum);
- return -EIO;
- }
-
- return 0;
-}
-
static int write_eraseblock(int ebnum)
{
- int err = 0;
- size_t written;
loff_t addr = ebnum * mtd->erasesize;
prandom_bytes_state(&rnd_state, writebuf, mtd->erasesize);
cond_resched();
- err = mtd_write(mtd, addr, mtd->erasesize, &written, writebuf);
- if (err || written != mtd->erasesize)
- pr_err("error: write failed at %#llx\n",
- (long long)addr);
-
- return err;
+ return mtdtest_write(mtd, addr, mtd->erasesize, writebuf);
}
static int verify_eraseblock(int ebnum)
{
uint32_t j;
- size_t read;
int err = 0, i;
loff_t addr0, addrn;
loff_t addr = ebnum * mtd->erasesize;
@@ -109,31 +77,16 @@ static int verify_eraseblock(int ebnum)
prandom_bytes_state(&rnd_state, writebuf, mtd->erasesize);
for (j = 0; j < pgcnt - 1; ++j, addr += pgsize) {
/* Do a read to set the internal dataRAMs to different data */
- err = mtd_read(mtd, addr0, bufsize, &read, twopages);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != bufsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)addr0);
+ err = mtdtest_read(mtd, addr0, bufsize, twopages);
+ if (err)
return err;
- }
- err = mtd_read(mtd, addrn - bufsize, bufsize, &read, twopages);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != bufsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)(addrn - bufsize));
+ err = mtdtest_read(mtd, addrn - bufsize, bufsize, twopages);
+ if (err)
return err;
- }
memset(twopages, 0, bufsize);
- err = mtd_read(mtd, addr, bufsize, &read, twopages);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != bufsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)addr);
+ err = mtdtest_read(mtd, addr, bufsize, twopages);
+ if (err)
break;
- }
if (memcmp(twopages, writebuf + (j * pgsize), bufsize)) {
pr_err("error: verify failed at %#llx\n",
(long long)addr);
@@ -145,31 +98,16 @@ static int verify_eraseblock(int ebnum)
struct rnd_state old_state = rnd_state;
/* Do a read to set the internal dataRAMs to different data */
- err = mtd_read(mtd, addr0, bufsize, &read, twopages);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != bufsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)addr0);
+ err = mtdtest_read(mtd, addr0, bufsize, twopages);
+ if (err)
return err;
- }
- err = mtd_read(mtd, addrn - bufsize, bufsize, &read, twopages);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != bufsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)(addrn - bufsize));
+ err = mtdtest_read(mtd, addrn - bufsize, bufsize, twopages);
+ if (err)
return err;
- }
memset(twopages, 0, bufsize);
- err = mtd_read(mtd, addr, bufsize, &read, twopages);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != bufsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)addr);
+ err = mtdtest_read(mtd, addr, bufsize, twopages);
+ if (err)
return err;
- }
memcpy(boundary, writebuf + mtd->erasesize - pgsize, pgsize);
prandom_bytes_state(&rnd_state, boundary + pgsize, pgsize);
if (memcmp(twopages, boundary, bufsize)) {
@@ -184,17 +122,14 @@ static int verify_eraseblock(int ebnum)
static int crosstest(void)
{
- size_t read;
int err = 0, i;
loff_t addr, addr0, addrn;
unsigned char *pp1, *pp2, *pp3, *pp4;
pr_info("crosstest\n");
pp1 = kmalloc(pgsize * 4, GFP_KERNEL);
- if (!pp1) {
- pr_err("error: cannot allocate memory\n");
+ if (!pp1)
return -ENOMEM;
- }
pp2 = pp1 + pgsize;
pp3 = pp2 + pgsize;
pp4 = pp3 + pgsize;
@@ -210,24 +145,16 @@ static int crosstest(void)
/* Read 2nd-to-last page to pp1 */
addr = addrn - pgsize - pgsize;
- err = mtd_read(mtd, addr, pgsize, &read, pp1);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)addr);
+ err = mtdtest_read(mtd, addr, pgsize, pp1);
+ if (err) {
kfree(pp1);
return err;
}
/* Read 3rd-to-last page to pp1 */
addr = addrn - pgsize - pgsize - pgsize;
- err = mtd_read(mtd, addr, pgsize, &read, pp1);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)addr);
+ err = mtdtest_read(mtd, addr, pgsize, pp1);
+ if (err) {
kfree(pp1);
return err;
}
@@ -235,12 +162,8 @@ static int crosstest(void)
/* Read first page to pp2 */
addr = addr0;
pr_info("reading page at %#llx\n", (long long)addr);
- err = mtd_read(mtd, addr, pgsize, &read, pp2);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)addr);
+ err = mtdtest_read(mtd, addr, pgsize, pp2);
+ if (err) {
kfree(pp1);
return err;
}
@@ -248,12 +171,8 @@ static int crosstest(void)
/* Read last page to pp3 */
addr = addrn - pgsize;
pr_info("reading page at %#llx\n", (long long)addr);
- err = mtd_read(mtd, addr, pgsize, &read, pp3);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)addr);
+ err = mtdtest_read(mtd, addr, pgsize, pp3);
+ if (err) {
kfree(pp1);
return err;
}
@@ -261,12 +180,8 @@ static int crosstest(void)
/* Read first page again to pp4 */
addr = addr0;
pr_info("reading page at %#llx\n", (long long)addr);
- err = mtd_read(mtd, addr, pgsize, &read, pp4);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)addr);
+ err = mtdtest_read(mtd, addr, pgsize, pp4);
+ if (err) {
kfree(pp1);
return err;
}
@@ -285,7 +200,6 @@ static int crosstest(void)
static int erasecrosstest(void)
{
- size_t read, written;
int err = 0, i, ebnum, ebnum2;
loff_t addr0;
char *readbuf = twopages;
@@ -304,30 +218,22 @@ static int erasecrosstest(void)
ebnum2 -= 1;
pr_info("erasing block %d\n", ebnum);
- err = erase_eraseblock(ebnum);
+ err = mtdtest_erase_eraseblock(mtd, ebnum);
if (err)
return err;
pr_info("writing 1st page of block %d\n", ebnum);
prandom_bytes_state(&rnd_state, writebuf, pgsize);
strcpy(writebuf, "There is no data like this!");
- err = mtd_write(mtd, addr0, pgsize, &written, writebuf);
- if (err || written != pgsize) {
- pr_info("error: write failed at %#llx\n",
- (long long)addr0);
- return err ? err : -1;
- }
+ err = mtdtest_write(mtd, addr0, pgsize, writebuf);
+ if (err)
+ return err;
pr_info("reading 1st page of block %d\n", ebnum);
memset(readbuf, 0, pgsize);
- err = mtd_read(mtd, addr0, pgsize, &read, readbuf);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)addr0);
- return err ? err : -1;
- }
+ err = mtdtest_read(mtd, addr0, pgsize, readbuf);
+ if (err)
+ return err;
pr_info("verifying 1st page of block %d\n", ebnum);
if (memcmp(writebuf, readbuf, pgsize)) {
@@ -337,35 +243,27 @@ static int erasecrosstest(void)
}
pr_info("erasing block %d\n", ebnum);
- err = erase_eraseblock(ebnum);
+ err = mtdtest_erase_eraseblock(mtd, ebnum);
if (err)
return err;
pr_info("writing 1st page of block %d\n", ebnum);
prandom_bytes_state(&rnd_state, writebuf, pgsize);
strcpy(writebuf, "There is no data like this!");
- err = mtd_write(mtd, addr0, pgsize, &written, writebuf);
- if (err || written != pgsize) {
- pr_err("error: write failed at %#llx\n",
- (long long)addr0);
- return err ? err : -1;
- }
+ err = mtdtest_write(mtd, addr0, pgsize, writebuf);
+ if (err)
+ return err;
pr_info("erasing block %d\n", ebnum2);
- err = erase_eraseblock(ebnum2);
+ err = mtdtest_erase_eraseblock(mtd, ebnum2);
if (err)
return err;
pr_info("reading 1st page of block %d\n", ebnum);
memset(readbuf, 0, pgsize);
- err = mtd_read(mtd, addr0, pgsize, &read, readbuf);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)addr0);
- return err ? err : -1;
- }
+ err = mtdtest_read(mtd, addr0, pgsize, readbuf);
+ if (err)
+ return err;
pr_info("verifying 1st page of block %d\n", ebnum);
if (memcmp(writebuf, readbuf, pgsize)) {
@@ -381,7 +279,6 @@ static int erasecrosstest(void)
static int erasetest(void)
{
- size_t read, written;
int err = 0, i, ebnum, ok = 1;
loff_t addr0;
@@ -395,33 +292,25 @@ static int erasetest(void)
}
pr_info("erasing block %d\n", ebnum);
- err = erase_eraseblock(ebnum);
+ err = mtdtest_erase_eraseblock(mtd, ebnum);
if (err)
return err;
pr_info("writing 1st page of block %d\n", ebnum);
prandom_bytes_state(&rnd_state, writebuf, pgsize);
- err = mtd_write(mtd, addr0, pgsize, &written, writebuf);
- if (err || written != pgsize) {
- pr_err("error: write failed at %#llx\n",
- (long long)addr0);
- return err ? err : -1;
- }
+ err = mtdtest_write(mtd, addr0, pgsize, writebuf);
+ if (err)
+ return err;
pr_info("erasing block %d\n", ebnum);
- err = erase_eraseblock(ebnum);
+ err = mtdtest_erase_eraseblock(mtd, ebnum);
if (err)
return err;
pr_info("reading 1st page of block %d\n", ebnum);
- err = mtd_read(mtd, addr0, pgsize, &read, twopages);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)addr0);
- return err ? err : -1;
- }
+ err = mtdtest_read(mtd, addr0, pgsize, twopages);
+ if (err)
+ return err;
pr_info("verifying 1st page of block %d is all 0xff\n",
ebnum);
@@ -440,38 +329,6 @@ static int erasetest(void)
return err;
}
-static int is_block_bad(int ebnum)
-{
- loff_t addr = ebnum * mtd->erasesize;
- int ret;
-
- ret = mtd_block_isbad(mtd, addr);
- if (ret)
- pr_info("block %d is bad\n", ebnum);
- return ret;
-}
-
-static int scan_for_bad_eraseblocks(void)
-{
- int i, bad = 0;
-
- bbt = kzalloc(ebcnt, GFP_KERNEL);
- if (!bbt) {
- pr_err("error: cannot allocate memory\n");
- return -ENOMEM;
- }
-
- pr_info("scanning for bad eraseblocks\n");
- for (i = 0; i < ebcnt; ++i) {
- bbt[i] = is_block_bad(i) ? 1 : 0;
- if (bbt[i])
- bad += 1;
- cond_resched();
- }
- pr_info("scanned %d eraseblocks, %d are bad\n", i, bad);
- return 0;
-}
-
static int __init mtd_pagetest_init(void)
{
int err = 0;
@@ -516,36 +373,28 @@ static int __init mtd_pagetest_init(void)
err = -ENOMEM;
bufsize = pgsize * 2;
writebuf = kmalloc(mtd->erasesize, GFP_KERNEL);
- if (!writebuf) {
- pr_err("error: cannot allocate memory\n");
+ if (!writebuf)
goto out;
- }
twopages = kmalloc(bufsize, GFP_KERNEL);
- if (!twopages) {
- pr_err("error: cannot allocate memory\n");
+ if (!twopages)
goto out;
- }
boundary = kmalloc(bufsize, GFP_KERNEL);
- if (!boundary) {
- pr_err("error: cannot allocate memory\n");
+ if (!boundary)
goto out;
- }
- err = scan_for_bad_eraseblocks();
+ bbt = kzalloc(ebcnt, GFP_KERNEL);
+ if (!bbt)
+ goto out;
+ err = mtdtest_scan_for_bad_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
/* Erase all eraseblocks */
pr_info("erasing whole device\n");
- for (i = 0; i < ebcnt; ++i) {
- if (bbt[i])
- continue;
- err = erase_eraseblock(i);
- if (err)
- goto out;
- cond_resched();
- }
- pr_info("erased %u eraseblocks\n", i);
+ err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
+ if (err)
+ goto out;
+ pr_info("erased %u eraseblocks\n", ebcnt);
/* Write all eraseblocks */
prandom_seed_state(&rnd_state, 1);
diff --git a/drivers/mtd/tests/mtd_readtest.c b/drivers/mtd/tests/readtest.c
index 266de04..626e66d 100644
--- a/drivers/mtd/tests/mtd_readtest.c
+++ b/drivers/mtd/tests/readtest.c
@@ -29,6 +29,8 @@
#include <linux/slab.h>
#include <linux/sched.h>
+#include "mtd_test.h"
+
static int dev = -EINVAL;
module_param(dev, int, S_IRUGO);
MODULE_PARM_DESC(dev, "MTD device number to use");
@@ -44,7 +46,6 @@ static int pgcnt;
static int read_eraseblock_by_page(int ebnum)
{
- size_t read;
int i, ret, err = 0;
loff_t addr = ebnum * mtd->erasesize;
void *buf = iobuf;
@@ -52,16 +53,10 @@ static int read_eraseblock_by_page(int ebnum)
for (i = 0; i < pgcnt; i++) {
memset(buf, 0 , pgsize);
- ret = mtd_read(mtd, addr, pgsize, &read, buf);
- if (ret == -EUCLEAN)
- ret = 0;
- if (ret || read != pgsize) {
- pr_err("error: read failed at %#llx\n",
- (long long)addr);
+ ret = mtdtest_read(mtd, addr, pgsize, buf);
+ if (ret) {
if (!err)
err = ret;
- if (!err)
- err = -EINVAL;
}
if (mtd->oobsize) {
struct mtd_oob_ops ops;
@@ -127,41 +122,6 @@ static void dump_eraseblock(int ebnum)
}
}
-static int is_block_bad(int ebnum)
-{
- loff_t addr = ebnum * mtd->erasesize;
- int ret;
-
- ret = mtd_block_isbad(mtd, addr);
- if (ret)
- pr_info("block %d is bad\n", ebnum);
- return ret;
-}
-
-static int scan_for_bad_eraseblocks(void)
-{
- int i, bad = 0;
-
- bbt = kzalloc(ebcnt, GFP_KERNEL);
- if (!bbt) {
- pr_err("error: cannot allocate memory\n");
- return -ENOMEM;
- }
-
- if (!mtd_can_have_bb(mtd))
- return 0;
-
- pr_info("scanning for bad eraseblocks\n");
- for (i = 0; i < ebcnt; ++i) {
- bbt[i] = is_block_bad(i) ? 1 : 0;
- if (bbt[i])
- bad += 1;
- cond_resched();
- }
- pr_info("scanned %d eraseblocks, %d are bad\n", i, bad);
- return 0;
-}
-
static int __init mtd_readtest_init(void)
{
uint64_t tmp;
@@ -204,17 +164,16 @@ static int __init mtd_readtest_init(void)
err = -ENOMEM;
iobuf = kmalloc(mtd->erasesize, GFP_KERNEL);
- if (!iobuf) {
- pr_err("error: cannot allocate memory\n");
+ if (!iobuf)
goto out;
- }
iobuf1 = kmalloc(mtd->erasesize, GFP_KERNEL);
- if (!iobuf1) {
- pr_err("error: cannot allocate memory\n");
+ if (!iobuf1)
goto out;
- }
- err = scan_for_bad_eraseblocks();
+ bbt = kzalloc(ebcnt, GFP_KERNEL);
+ if (!bbt)
+ goto out;
+ err = mtdtest_scan_for_bad_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/speedtest.c
index a6ce9c1..87ff6a2 100644
--- a/drivers/mtd/tests/mtd_speedtest.c
+++ b/drivers/mtd/tests/speedtest.c
@@ -30,6 +30,8 @@
#include <linux/sched.h>
#include <linux/random.h>
+#include "mtd_test.h"
+
static int dev = -EINVAL;
module_param(dev, int, S_IRUGO);
MODULE_PARM_DESC(dev, "MTD device number to use");
@@ -49,33 +51,6 @@ static int pgcnt;
static int goodebcnt;
static struct timeval start, finish;
-
-static int erase_eraseblock(int ebnum)
-{
- int err;
- struct erase_info ei;
- loff_t addr = ebnum * mtd->erasesize;
-
- memset(&ei, 0, sizeof(struct erase_info));
- ei.mtd = mtd;
- ei.addr = addr;
- ei.len = mtd->erasesize;
-
- err = mtd_erase(mtd, &ei);
- if (err) {
- pr_err("error %d while erasing EB %d\n", err, ebnum);
- return err;
- }
-
- if (ei.state == MTD_ERASE_FAILED) {
- pr_err("some erase error occurred at EB %d\n",
- ebnum);
- return -EIO;
- }
-
- return 0;
-}
-
static int multiblock_erase(int ebnum, int blocks)
{
int err;
@@ -103,54 +78,23 @@ static int multiblock_erase(int ebnum, int blocks)
return 0;
}
-static int erase_whole_device(void)
-{
- int err;
- unsigned int i;
-
- for (i = 0; i < ebcnt; ++i) {
- if (bbt[i])
- continue;
- err = erase_eraseblock(i);
- if (err)
- return err;
- cond_resched();
- }
- return 0;
-}
-
static int write_eraseblock(int ebnum)
{
- size_t written;
- int err = 0;
loff_t addr = ebnum * mtd->erasesize;
- err = mtd_write(mtd, addr, mtd->erasesize, &written, iobuf);
- if (err || written != mtd->erasesize) {
- pr_err("error: write failed at %#llx\n", addr);
- if (!err)
- err = -EINVAL;
- }
-
- return err;
+ return mtdtest_write(mtd, addr, mtd->erasesize, iobuf);
}
static int write_eraseblock_by_page(int ebnum)
{
- size_t written;
int i, err = 0;
loff_t addr = ebnum * mtd->erasesize;
void *buf = iobuf;
for (i = 0; i < pgcnt; i++) {
- err = mtd_write(mtd, addr, pgsize, &written, buf);
- if (err || written != pgsize) {
- pr_err("error: write failed at %#llx\n",
- addr);
- if (!err)
- err = -EINVAL;
+ err = mtdtest_write(mtd, addr, pgsize, buf);
+ if (err)
break;
- }
addr += pgsize;
buf += pgsize;
}
@@ -160,74 +104,41 @@ static int write_eraseblock_by_page(int ebnum)
static int write_eraseblock_by_2pages(int ebnum)
{
- size_t written, sz = pgsize * 2;
+ size_t sz = pgsize * 2;
int i, n = pgcnt / 2, err = 0;
loff_t addr = ebnum * mtd->erasesize;
void *buf = iobuf;
for (i = 0; i < n; i++) {
- err = mtd_write(mtd, addr, sz, &written, buf);
- if (err || written != sz) {
- pr_err("error: write failed at %#llx\n",
- addr);
- if (!err)
- err = -EINVAL;
+ err = mtdtest_write(mtd, addr, sz, buf);
+ if (err)
return err;
- }
addr += sz;
buf += sz;
}
- if (pgcnt % 2) {
- err = mtd_write(mtd, addr, pgsize, &written, buf);
- if (err || written != pgsize) {
- pr_err("error: write failed at %#llx\n",
- addr);
- if (!err)
- err = -EINVAL;
- }
- }
+ if (pgcnt % 2)
+ err = mtdtest_write(mtd, addr, pgsize, buf);
return err;
}
static int read_eraseblock(int ebnum)
{
- size_t read;
- int err = 0;
loff_t addr = ebnum * mtd->erasesize;
- err = mtd_read(mtd, addr, mtd->erasesize, &read, iobuf);
- /* Ignore corrected ECC errors */
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != mtd->erasesize) {
- pr_err("error: read failed at %#llx\n", addr);
- if (!err)
- err = -EINVAL;
- }
-
- return err;
+ return mtdtest_read(mtd, addr, mtd->erasesize, iobuf);
}
static int read_eraseblock_by_page(int ebnum)
{
- size_t read;
int i, err = 0;
loff_t addr = ebnum * mtd->erasesize;
void *buf = iobuf;
for (i = 0; i < pgcnt; i++) {
- err = mtd_read(mtd, addr, pgsize, &read, buf);
- /* Ignore corrected ECC errors */
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
- pr_err("error: read failed at %#llx\n",
- addr);
- if (!err)
- err = -EINVAL;
+ err = mtdtest_read(mtd, addr, pgsize, buf);
+ if (err)
break;
- }
addr += pgsize;
buf += pgsize;
}
@@ -237,53 +148,24 @@ static int read_eraseblock_by_page(int ebnum)
static int read_eraseblock_by_2pages(int ebnum)
{
- size_t read, sz = pgsize * 2;
+ size_t sz = pgsize * 2;
int i, n = pgcnt / 2, err = 0;
loff_t addr = ebnum * mtd->erasesize;
void *buf = iobuf;
for (i = 0; i < n; i++) {
- err = mtd_read(mtd, addr, sz, &read, buf);
- /* Ignore corrected ECC errors */
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != sz) {
- pr_err("error: read failed at %#llx\n",
- addr);
- if (!err)
- err = -EINVAL;
+ err = mtdtest_read(mtd, addr, sz, buf);
+ if (err)
return err;
- }
addr += sz;
buf += sz;
}
- if (pgcnt % 2) {
- err = mtd_read(mtd, addr, pgsize, &read, buf);
- /* Ignore corrected ECC errors */
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
- pr_err("error: read failed at %#llx\n",
- addr);
- if (!err)
- err = -EINVAL;
- }
- }
+ if (pgcnt % 2)
+ err = mtdtest_read(mtd, addr, pgsize, buf);
return err;
}
-static int is_block_bad(int ebnum)
-{
- loff_t addr = ebnum * mtd->erasesize;
- int ret;
-
- ret = mtd_block_isbad(mtd, addr);
- if (ret)
- pr_info("block %d is bad\n", ebnum);
- return ret;
-}
-
static inline void start_timing(void)
{
do_gettimeofday(&start);
@@ -308,32 +190,6 @@ static long calc_speed(void)
return k;
}
-static int scan_for_bad_eraseblocks(void)
-{
- int i, bad = 0;
-
- bbt = kzalloc(ebcnt, GFP_KERNEL);
- if (!bbt) {
- pr_err("error: cannot allocate memory\n");
- return -ENOMEM;
- }
-
- if (!mtd_can_have_bb(mtd))
- goto out;
-
- pr_info("scanning for bad eraseblocks\n");
- for (i = 0; i < ebcnt; ++i) {
- bbt[i] = is_block_bad(i) ? 1 : 0;
- if (bbt[i])
- bad += 1;
- cond_resched();
- }
- pr_info("scanned %d eraseblocks, %d are bad\n", i, bad);
-out:
- goodebcnt = ebcnt - bad;
- return 0;
-}
-
static int __init mtd_speedtest_init(void)
{
int err, i, blocks, j, k;
@@ -384,18 +240,23 @@ static int __init mtd_speedtest_init(void)
err = -ENOMEM;
iobuf = kmalloc(mtd->erasesize, GFP_KERNEL);
- if (!iobuf) {
- pr_err("error: cannot allocate memory\n");
+ if (!iobuf)
goto out;
- }
prandom_bytes(iobuf, mtd->erasesize);
- err = scan_for_bad_eraseblocks();
+ bbt = kzalloc(ebcnt, GFP_KERNEL);
+ if (!bbt)
+ goto out;
+ err = mtdtest_scan_for_bad_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
+ for (i = 0; i < ebcnt; i++) {
+ if (!bbt[i])
+ goodebcnt++;
+ }
- err = erase_whole_device();
+ err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
@@ -429,7 +290,7 @@ static int __init mtd_speedtest_init(void)
speed = calc_speed();
pr_info("eraseblock read speed is %ld KiB/s\n", speed);
- err = erase_whole_device();
+ err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
@@ -463,7 +324,7 @@ static int __init mtd_speedtest_init(void)
speed = calc_speed();
pr_info("page read speed is %ld KiB/s\n", speed);
- err = erase_whole_device();
+ err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
@@ -500,14 +361,9 @@ static int __init mtd_speedtest_init(void)
/* Erase all eraseblocks */
pr_info("Testing erase speed\n");
start_timing();
- for (i = 0; i < ebcnt; ++i) {
- if (bbt[i])
- continue;
- err = erase_eraseblock(i);
- if (err)
- goto out;
- cond_resched();
- }
+ err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
+ if (err)
+ goto out;
stop_timing();
speed = calc_speed();
pr_info("erase speed is %ld KiB/s\n", speed);
diff --git a/drivers/mtd/tests/mtd_stresstest.c b/drivers/mtd/tests/stresstest.c
index 787f539..c9d42cc 100644
--- a/drivers/mtd/tests/mtd_stresstest.c
+++ b/drivers/mtd/tests/stresstest.c
@@ -31,6 +31,8 @@
#include <linux/vmalloc.h>
#include <linux/random.h>
+#include "mtd_test.h"
+
static int dev = -EINVAL;
module_param(dev, int, S_IRUGO);
MODULE_PARM_DESC(dev, "MTD device number to use");
@@ -81,49 +83,11 @@ static int rand_len(int offs)
return len;
}
-static int erase_eraseblock(int ebnum)
-{
- int err;
- struct erase_info ei;
- loff_t addr = ebnum * mtd->erasesize;
-
- memset(&ei, 0, sizeof(struct erase_info));
- ei.mtd = mtd;
- ei.addr = addr;
- ei.len = mtd->erasesize;
-
- err = mtd_erase(mtd, &ei);
- if (unlikely(err)) {
- pr_err("error %d while erasing EB %d\n", err, ebnum);
- return err;
- }
-
- if (unlikely(ei.state == MTD_ERASE_FAILED)) {
- pr_err("some erase error occurred at EB %d\n",
- ebnum);
- return -EIO;
- }
-
- return 0;
-}
-
-static int is_block_bad(int ebnum)
-{
- loff_t addr = ebnum * mtd->erasesize;
- int ret;
-
- ret = mtd_block_isbad(mtd, addr);
- if (ret)
- pr_info("block %d is bad\n", ebnum);
- return ret;
-}
-
static int do_read(void)
{
- size_t read;
int eb = rand_eb();
int offs = rand_offs();
- int len = rand_len(offs), err;
+ int len = rand_len(offs);
loff_t addr;
if (bbt[eb + 1]) {
@@ -133,28 +97,17 @@ static int do_read(void)
len = mtd->erasesize - offs;
}
addr = eb * mtd->erasesize + offs;
- err = mtd_read(mtd, addr, len, &read, readbuf);
- if (mtd_is_bitflip(err))
- err = 0;
- if (unlikely(err || read != len)) {
- pr_err("error: read failed at 0x%llx\n",
- (long long)addr);
- if (!err)
- err = -EINVAL;
- return err;
- }
- return 0;
+ return mtdtest_read(mtd, addr, len, readbuf);
}
static int do_write(void)
{
int eb = rand_eb(), offs, err, len;
- size_t written;
loff_t addr;
offs = offsets[eb];
if (offs >= mtd->erasesize) {
- err = erase_eraseblock(eb);
+ err = mtdtest_erase_eraseblock(mtd, eb);
if (err)
return err;
offs = offsets[eb] = 0;
@@ -165,21 +118,16 @@ static int do_write(void)
if (bbt[eb + 1])
len = mtd->erasesize - offs;
else {
- err = erase_eraseblock(eb + 1);
+ err = mtdtest_erase_eraseblock(mtd, eb + 1);
if (err)
return err;
offsets[eb + 1] = 0;
}
}
addr = eb * mtd->erasesize + offs;
- err = mtd_write(mtd, addr, len, &written, writebuf);
- if (unlikely(err || written != len)) {
- pr_err("error: write failed at 0x%llx\n",
- (long long)addr);
- if (!err)
- err = -EINVAL;
+ err = mtdtest_write(mtd, addr, len, writebuf);
+ if (unlikely(err))
return err;
- }
offs += len;
while (offs > mtd->erasesize) {
offsets[eb++] = mtd->erasesize;
@@ -197,30 +145,6 @@ static int do_operation(void)
return do_write();
}
-static int scan_for_bad_eraseblocks(void)
-{
- int i, bad = 0;
-
- bbt = kzalloc(ebcnt, GFP_KERNEL);
- if (!bbt) {
- pr_err("error: cannot allocate memory\n");
- return -ENOMEM;
- }
-
- if (!mtd_can_have_bb(mtd))
- return 0;
-
- pr_info("scanning for bad eraseblocks\n");
- for (i = 0; i < ebcnt; ++i) {
- bbt[i] = is_block_bad(i) ? 1 : 0;
- if (bbt[i])
- bad += 1;
- cond_resched();
- }
- pr_info("scanned %d eraseblocks, %d are bad\n", i, bad);
- return 0;
-}
-
static int __init mtd_stresstest_init(void)
{
int err;
@@ -276,15 +200,16 @@ static int __init mtd_stresstest_init(void)
readbuf = vmalloc(bufsize);
writebuf = vmalloc(bufsize);
offsets = kmalloc(ebcnt * sizeof(int), GFP_KERNEL);
- if (!readbuf || !writebuf || !offsets) {
- pr_err("error: cannot allocate memory\n");
+ if (!readbuf || !writebuf || !offsets)
goto out;
- }
for (i = 0; i < ebcnt; i++)
offsets[i] = mtd->erasesize;
prandom_bytes(writebuf, bufsize);
- err = scan_for_bad_eraseblocks();
+ bbt = kzalloc(ebcnt, GFP_KERNEL);
+ if (!bbt)
+ goto out;
+ err = mtdtest_scan_for_bad_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
diff --git a/drivers/mtd/tests/mtd_subpagetest.c b/drivers/mtd/tests/subpagetest.c
index aade56f..e2c0adf 100644
--- a/drivers/mtd/tests/mtd_subpagetest.c
+++ b/drivers/mtd/tests/subpagetest.c
@@ -30,6 +30,8 @@
#include <linux/sched.h>
#include <linux/random.h>
+#include "mtd_test.h"
+
static int dev = -EINVAL;
module_param(dev, int, S_IRUGO);
MODULE_PARM_DESC(dev, "MTD device number to use");
@@ -51,50 +53,6 @@ static inline void clear_data(unsigned char *buf, size_t len)
memset(buf, 0, len);
}
-static int erase_eraseblock(int ebnum)
-{
- int err;
- struct erase_info ei;
- loff_t addr = ebnum * mtd->erasesize;
-
- memset(&ei, 0, sizeof(struct erase_info));
- ei.mtd = mtd;
- ei.addr = addr;
- ei.len = mtd->erasesize;
-
- err = mtd_erase(mtd, &ei);
- if (err) {
- pr_err("error %d while erasing EB %d\n", err, ebnum);
- return err;
- }
-
- if (ei.state == MTD_ERASE_FAILED) {
- pr_err("some erase error occurred at EB %d\n",
- ebnum);
- return -EIO;
- }
-
- return 0;
-}
-
-static int erase_whole_device(void)
-{
- int err;
- unsigned int i;
-
- pr_info("erasing whole device\n");
- for (i = 0; i < ebcnt; ++i) {
- if (bbt[i])
- continue;
- err = erase_eraseblock(i);
- if (err)
- return err;
- cond_resched();
- }
- pr_info("erased %u eraseblocks\n", i);
- return 0;
-}
-
static int write_eraseblock(int ebnum)
{
size_t written;
@@ -317,38 +275,6 @@ static int verify_all_eraseblocks_ff(void)
return 0;
}
-static int is_block_bad(int ebnum)
-{
- loff_t addr = ebnum * mtd->erasesize;
- int ret;
-
- ret = mtd_block_isbad(mtd, addr);
- if (ret)
- pr_info("block %d is bad\n", ebnum);
- return ret;
-}
-
-static int scan_for_bad_eraseblocks(void)
-{
- int i, bad = 0;
-
- bbt = kzalloc(ebcnt, GFP_KERNEL);
- if (!bbt) {
- pr_err("error: cannot allocate memory\n");
- return -ENOMEM;
- }
-
- pr_info("scanning for bad eraseblocks\n");
- for (i = 0; i < ebcnt; ++i) {
- bbt[i] = is_block_bad(i) ? 1 : 0;
- if (bbt[i])
- bad += 1;
- cond_resched();
- }
- pr_info("scanned %d eraseblocks, %d are bad\n", i, bad);
- return 0;
-}
-
static int __init mtd_subpagetest_init(void)
{
int err = 0;
@@ -393,21 +319,20 @@ static int __init mtd_subpagetest_init(void)
err = -ENOMEM;
bufsize = subpgsize * 32;
writebuf = kmalloc(bufsize, GFP_KERNEL);
- if (!writebuf) {
- pr_info("error: cannot allocate memory\n");
+ if (!writebuf)
goto out;
- }
readbuf = kmalloc(bufsize, GFP_KERNEL);
- if (!readbuf) {
- pr_info("error: cannot allocate memory\n");
+ if (!readbuf)
+ goto out;
+ bbt = kzalloc(ebcnt, GFP_KERNEL);
+ if (!bbt)
goto out;
- }
- err = scan_for_bad_eraseblocks();
+ err = mtdtest_scan_for_bad_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
- err = erase_whole_device();
+ err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
@@ -439,7 +364,7 @@ static int __init mtd_subpagetest_init(void)
}
pr_info("verified %u eraseblocks\n", i);
- err = erase_whole_device();
+ err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
@@ -477,7 +402,7 @@ static int __init mtd_subpagetest_init(void)
}
pr_info("verified %u eraseblocks\n", i);
- err = erase_whole_device();
+ err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
diff --git a/drivers/mtd/tests/mtd_torturetest.c b/drivers/mtd/tests/torturetest.c
index 3a9f6a6..eeab969 100644
--- a/drivers/mtd/tests/mtd_torturetest.c
+++ b/drivers/mtd/tests/torturetest.c
@@ -32,6 +32,7 @@
#include <linux/mtd/mtd.h>
#include <linux/slab.h>
#include <linux/sched.h>
+#include "mtd_test.h"
#define RETRIES 3
@@ -93,35 +94,6 @@ static inline void stop_timing(void)
}
/*
- * Erase eraseblock number @ebnum.
- */
-static inline int erase_eraseblock(int ebnum)
-{
- int err;
- struct erase_info ei;
- loff_t addr = ebnum * mtd->erasesize;
-
- memset(&ei, 0, sizeof(struct erase_info));
- ei.mtd = mtd;
- ei.addr = addr;
- ei.len = mtd->erasesize;
-
- err = mtd_erase(mtd, &ei);
- if (err) {
- pr_err("error %d while erasing EB %d\n", err, ebnum);
- return err;
- }
-
- if (ei.state == MTD_ERASE_FAILED) {
- pr_err("some erase error occurred at EB %d\n",
- ebnum);
- return -EIO;
- }
-
- return 0;
-}
-
-/*
* Check that the contents of eraseblock number @enbum is equivalent to the
* @buf buffer.
*/
@@ -208,7 +180,7 @@ static inline int write_pattern(int ebnum, void *buf)
static int __init tort_init(void)
{
int err = 0, i, infinite = !cycles_count;
- int *bad_ebs;
+ unsigned char *bad_ebs;
printk(KERN_INFO "\n");
printk(KERN_INFO "=================================================\n");
@@ -265,7 +237,7 @@ static int __init tort_init(void)
if (!check_buf)
goto out_patt_FF;
- bad_ebs = kcalloc(ebcnt, sizeof(*bad_ebs), GFP_KERNEL);
+ bad_ebs = kzalloc(ebcnt, GFP_KERNEL);
if (!bad_ebs)
goto out_check_buf;
@@ -283,40 +255,16 @@ static int __init tort_init(void)
}
}
- /*
- * Check if there is a bad eraseblock among those we are going to test.
- */
- if (mtd_can_have_bb(mtd)) {
- for (i = eb; i < eb + ebcnt; i++) {
- err = mtd_block_isbad(mtd, (loff_t)i * mtd->erasesize);
-
- if (err < 0) {
- pr_info("block_isbad() returned %d "
- "for EB %d\n", err, i);
- goto out;
- }
-
- if (err) {
- pr_err("EB %d is bad. Skip it.\n", i);
- bad_ebs[i - eb] = 1;
- }
- }
- }
+ err = mtdtest_scan_for_bad_eraseblocks(mtd, bad_ebs, eb, ebcnt);
+ if (err)
+ goto out;
start_timing();
while (1) {
int i;
void *patt;
- /* Erase all eraseblocks */
- for (i = eb; i < eb + ebcnt; i++) {
- if (bad_ebs[i - eb])
- continue;
- err = erase_eraseblock(i);
- if (err)
- goto out;
- cond_resched();
- }
+ mtdtest_erase_good_eraseblocks(mtd, bad_ebs, eb, ebcnt);
/* Check if the eraseblocks contain only 0xFF bytes */
if (check) {
diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h
index 211ff67..95fc482 100644
--- a/include/linux/mtd/bbm.h
+++ b/include/linux/mtd/bbm.h
@@ -93,8 +93,6 @@ struct nand_bbt_descr {
#define NAND_BBT_CREATE_EMPTY 0x00000400
/* Search good / bad pattern through all pages of a block */
#define NAND_BBT_SCANALLPAGES 0x00000800
-/* Scan block empty during good / bad block scan */
-#define NAND_BBT_SCANEMPTY 0x00001000
/* Write bbt if neccecary */
#define NAND_BBT_WRITE 0x00002000
/* Read and write back block contents when writing bbt */
diff --git a/include/linux/mtd/fsmc.h b/include/linux/mtd/fsmc.h
index d6ed61e..c8be32e 100644
--- a/include/linux/mtd/fsmc.h
+++ b/include/linux/mtd/fsmc.h
@@ -137,6 +137,7 @@ enum access_mode {
/**
* fsmc_nand_platform_data - platform specific NAND controller config
+ * @nand_timings: timing setup for the physical NAND interface
* @partitions: partition table for the platform, use a default fallback
* if this is NULL
* @nr_partitions: the number of partitions in the previous entry
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index a5cf4e8..f9bfe52 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -173,6 +173,9 @@ struct mtd_info {
/* ECC layout structure pointer - read only! */
struct nand_ecclayout *ecclayout;
+ /* the ecc step size. */
+ unsigned int ecc_step_size;
+
/* max number of correctible bit errors per ecc step */
unsigned int ecc_strength;
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index ab63634..ac8e89d 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -56,7 +56,7 @@ extern int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
* is supported now. If you add a chip with bigger oobsize/page
* adjust this accordingly.
*/
-#define NAND_MAX_OOBSIZE 640
+#define NAND_MAX_OOBSIZE 744
#define NAND_MAX_PAGESIZE 8192
/*
@@ -202,6 +202,10 @@ typedef enum {
/* Keep gcc happy */
struct nand_chip;
+/* ONFI features */
+#define ONFI_FEATURE_16_BIT_BUS (1 << 0)
+#define ONFI_FEATURE_EXT_PARAM_PAGE (1 << 7)
+
/* ONFI timing mode, used in both asynchronous and synchronous mode */
#define ONFI_TIMING_MODE_0 (1 << 0)
#define ONFI_TIMING_MODE_1 (1 << 1)
@@ -217,6 +221,9 @@ struct nand_chip;
/* ONFI subfeature parameters length */
#define ONFI_SUBFEATURE_PARAM_LEN 4
+/* ONFI optional commands SET/GET FEATURES supported? */
+#define ONFI_OPT_CMD_SET_GET_FEATURES (1 << 2)
+
struct nand_onfi_params {
/* rev info and features block */
/* 'O' 'N' 'F' 'I' */
@@ -224,7 +231,10 @@ struct nand_onfi_params {
__le16 revision;
__le16 features;
__le16 opt_cmd;
- u8 reserved[22];
+ u8 reserved0[2];
+ __le16 ext_param_page_length; /* since ONFI 2.1 */
+ u8 num_of_param_pages; /* since ONFI 2.1 */
+ u8 reserved1[17];
/* manufacturer information block */
char manufacturer[12];
@@ -281,6 +291,40 @@ struct nand_onfi_params {
#define ONFI_CRC_BASE 0x4F4E
+/* Extended ECC information Block Definition (since ONFI 2.1) */
+struct onfi_ext_ecc_info {
+ u8 ecc_bits;
+ u8 codeword_size;
+ __le16 bb_per_lun;
+ __le16 block_endurance;
+ u8 reserved[2];
+} __packed;
+
+#define ONFI_SECTION_TYPE_0 0 /* Unused section. */
+#define ONFI_SECTION_TYPE_1 1 /* for additional sections. */
+#define ONFI_SECTION_TYPE_2 2 /* for ECC information. */
+struct onfi_ext_section {
+ u8 type;
+ u8 length;
+} __packed;
+
+#define ONFI_EXT_SECTION_MAX 8
+
+/* Extended Parameter Page Definition (since ONFI 2.1) */
+struct onfi_ext_param_page {
+ __le16 crc;
+ u8 sig[4]; /* 'E' 'P' 'P' 'S' */
+ u8 reserved0[10];
+ struct onfi_ext_section sections[ONFI_EXT_SECTION_MAX];
+
+ /*
+ * The actual size of the Extended Parameter Page is in
+ * @ext_param_page_length of nand_onfi_params{}.
+ * The following are the variable length sections.
+ * So we do not add any fields below. Please see the ONFI spec.
+ */
+} __packed;
+
/**
* struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared among independent devices
* @lock: protection lock
@@ -390,8 +434,8 @@ struct nand_buffers {
* @write_buf: [REPLACEABLE] write data from the buffer to the chip
* @read_buf: [REPLACEABLE] read data from the chip into the buffer
* @select_chip: [REPLACEABLE] select chip nr
- * @block_bad: [REPLACEABLE] check, if the block is bad
- * @block_markbad: [REPLACEABLE] mark the block bad
+ * @block_bad: [REPLACEABLE] check if a block is bad, using OOB markers
+ * @block_markbad: [REPLACEABLE] mark a block bad
* @cmd_ctrl: [BOARDSPECIFIC] hardwarespecific function for controlling
* ALE/CLE/nCE. Also used to write command and address
* @init_size: [BOARDSPECIFIC] hardwarespecific function for setting
@@ -434,6 +478,12 @@ struct nand_buffers {
* bad block marker position; i.e., BBM == 11110111b is
* not bad when badblockbits == 7
* @cellinfo: [INTERN] MLC/multichip data from chip ident
+ * @ecc_strength_ds: [INTERN] ECC correctability from the datasheet.
+ * Minimum amount of bit errors per @ecc_step_ds guaranteed
+ * to be correctable. If unknown, set to zero.
+ * @ecc_step_ds: [INTERN] ECC step required by the @ecc_strength_ds,
+ * also from the datasheet. It is the recommended ECC step
+ * size, if known; if unknown, set to zero.
* @numchips: [INTERN] number of physical chips
* @chipsize: [INTERN] the size of one chip for multichip arrays
* @pagemask: [INTERN] page number mask = number of (pages / chip) - 1
@@ -510,6 +560,8 @@ struct nand_chip {
unsigned int pagebuf_bitflips;
int subpagesize;
uint8_t cellinfo;
+ uint16_t ecc_strength_ds;
+ uint16_t ecc_step_ds;
int badblockpos;
int badblockbits;
@@ -576,6 +628,11 @@ struct nand_chip {
{ .name = (nm), {{ .dev_id = (devid) }}, .chipsize = (chipsz), \
.options = (opts) }
+#define NAND_ECC_INFO(_strength, _step) \
+ { .strength_ds = (_strength), .step_ds = (_step) }
+#define NAND_ECC_STRENGTH(type) ((type)->ecc.strength_ds)
+#define NAND_ECC_STEP(type) ((type)->ecc.step_ds)
+
/**
* struct nand_flash_dev - NAND Flash Device ID Structure
* @name: a human-readable name of the NAND chip
@@ -593,6 +650,12 @@ struct nand_chip {
* @options: stores various chip bit options
* @id_len: The valid length of the @id.
* @oobsize: OOB size
+ * @ecc.strength_ds: The ECC correctability from the datasheet, same as the
+ * @ecc_strength_ds in nand_chip{}.
+ * @ecc.step_ds: The ECC step required by the @ecc.strength_ds, same as the
+ * @ecc_step_ds in nand_chip{}, also from the datasheet.
+ * For example, the "4bit ECC for each 512Byte" can be set with
+ * NAND_ECC_INFO(4, 512).
*/
struct nand_flash_dev {
char *name;
@@ -609,6 +672,10 @@ struct nand_flash_dev {
unsigned int options;
uint16_t id_len;
uint16_t oobsize;
+ struct {
+ uint16_t strength_ds;
+ uint16_t step_ds;
+ } ecc;
};
/**
@@ -625,8 +692,8 @@ extern struct nand_flash_dev nand_flash_ids[];
extern struct nand_manufacturers nand_manuf_ids[];
extern int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd);
-extern int nand_update_bbt(struct mtd_info *mtd, loff_t offs);
extern int nand_default_bbt(struct mtd_info *mtd);
+extern int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs);
extern int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt);
extern int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
int allowbbt);
@@ -708,6 +775,12 @@ struct platform_nand_chip *get_platform_nandchip(struct mtd_info *mtd)
return chip->priv;
}
+/* return the supported features. */
+static inline int onfi_feature(struct nand_chip *chip)
+{
+ return chip->onfi_version ? le16_to_cpu(chip->onfi_params.features) : 0;
+}
+
/* return the supported asynchronous timing mode. */
static inline int onfi_get_async_timing_mode(struct nand_chip *chip)
{
diff --git a/include/linux/platform_data/atmel.h b/include/linux/platform_data/atmel.h
index 6a293b7..cea9f701 100644
--- a/include/linux/platform_data/atmel.h
+++ b/include/linux/platform_data/atmel.h
@@ -71,6 +71,10 @@ struct atmel_nand_data {
u8 on_flash_bbt; /* bbt on flash */
struct mtd_partition *parts;
unsigned int num_parts;
+ bool has_dma; /* support dma transfer */
+
+ /* default is false, only for at32ap7000 chip is true */
+ bool need_reset_workaround;
};
/* Serial */
diff --git a/include/linux/platform_data/mtd-nand-pxa3xx.h b/include/linux/platform_data/mtd-nand-pxa3xx.h
index c42f39f..ffb8019 100644
--- a/include/linux/platform_data/mtd-nand-pxa3xx.h
+++ b/include/linux/platform_data/mtd-nand-pxa3xx.h
@@ -16,19 +16,6 @@ struct pxa3xx_nand_timing {
unsigned int tAR; /* ND_ALE low to ND_nRE low delay */
};
-struct pxa3xx_nand_cmdset {
- uint16_t read1;
- uint16_t read2;
- uint16_t program;
- uint16_t read_status;
- uint16_t read_id;
- uint16_t erase;
- uint16_t reset;
- uint16_t lock;
- uint16_t unlock;
- uint16_t lock_status;
-};
-
struct pxa3xx_nand_flash {
char *name;
uint32_t chip_id;
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