summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-nomadik
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-19 12:47:41 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-19 12:47:41 -0800
commitca2a88f56aa385890c7fd4ce9d2722b0848ca990 (patch)
tree935fd9cec938677d6529db203f24d803ed5f0b19 /arch/arm/mach-nomadik
parent3935e89505a1c3ab3f3b0c7ef0eae54124f48905 (diff)
parentd4d4f1bf6a343b25220fdcdf559fd593dd3e25a7 (diff)
downloadop-kernel-dev-ca2a88f56aa385890c7fd4ce9d2722b0848ca990.zip
op-kernel-dev-ca2a88f56aa385890c7fd4ce9d2722b0848ca990.tar.gz
Merge tag 'for-linus-20121219' of git://git.infradead.org/linux-mtd
Pull MTD updates from David Woodhouse: - Various cleanups especially in NAND tests - Add support for NAND flash on BCMA bus - DT support for sh_flctl and denali NAND drivers - Kill obsolete/superceded drivers (fortunet, nomadik_nand) - Fix JFFS2 locking bug in ENOMEM failure path - New SPI flash chips, as usual - Support writing in 'reliable mode' for DiskOnChip G4 - Debugfs support in nandsim * tag 'for-linus-20121219' of git://git.infradead.org/linux-mtd: (96 commits) mtd: nand: typo in nand_id_has_period() comments mtd: nand/gpio: use io{read,write}*_rep accessors mtd: block2mtd: throttle writes by calling balance_dirty_pages_ratelimited. mtd: nand: gpmi: reset BCH earlier, too, to avoid NAND startup problems mtd: nand/docg4: fix and improve read of factory bbt mtd: nand/docg4: reserve bb marker area in ecclayout mtd: nand/docg4: add support for writing in reliable mode mtd: mxc_nand: reorder part_probes to let cmdline override other sources mtd: mxc_nand: fix unbalanced clk_disable() in error path mtd: nandsim: Introduce debugfs infrastructure mtd: physmap_of: error checking to prevent a NULL pointer dereference mtg: docg3: potential divide by zero in doc_write_oob() mtd: bcm47xxnflash: writing support mtd: tests/read: initialize buffer for whole next page mtd: at91: atmel_nand: return bit flips for the PMECC read_page() mtd: fix recovery after failed write-buffer operation in cfi_cmdset_0002.c mtd: nand: onfi need to be probed in 8 bits mode mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus width mtd: nand: print flash size during detection mted: nand_wait_ready timeout fix ...
Diffstat (limited to 'arch/arm/mach-nomadik')
-rw-r--r--arch/arm/mach-nomadik/board-nhk8815.c71
-rw-r--r--arch/arm/mach-nomadik/include/mach/fsmc.h29
2 files changed, 39 insertions, 61 deletions
diff --git a/arch/arm/mach-nomadik/board-nhk8815.c b/arch/arm/mach-nomadik/board-nhk8815.c
index 5ccdf53..98167a4 100644
--- a/arch/arm/mach-nomadik/board-nhk8815.c
+++ b/arch/arm/mach-nomadik/board-nhk8815.c
@@ -19,6 +19,7 @@
#include <linux/gpio.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
+#include <linux/mtd/fsmc.h>
#include <linux/mtd/onenand.h>
#include <linux/mtd/partitions.h>
#include <linux/i2c.h>
@@ -33,7 +34,6 @@
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/time.h>
-#include <mach/fsmc.h>
#include <mach/irqs.h>
#include "cpu-8815.h"
@@ -42,39 +42,34 @@
#define SRC_CR_INIT_MASK 0x00007fff
#define SRC_CR_INIT_VAL 0x2aaa8000
+#define ALE_OFF 0x1000000
+#define CLE_OFF 0x800000
+
/* These addresses span 16MB, so use three individual pages */
static struct resource nhk8815_nand_resources[] = {
{
+ .name = "nand_data",
+ .start = 0x40000000,
+ .end = 0x40000000 + SZ_16K - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
.name = "nand_addr",
- .start = NAND_IO_ADDR,
- .end = NAND_IO_ADDR + 0xfff,
+ .start = 0x40000000 + ALE_OFF,
+ .end = 0x40000000 +ALE_OFF + SZ_16K - 1,
.flags = IORESOURCE_MEM,
}, {
.name = "nand_cmd",
- .start = NAND_IO_CMD,
- .end = NAND_IO_CMD + 0xfff,
+ .start = 0x40000000 + CLE_OFF,
+ .end = 0x40000000 + CLE_OFF + SZ_16K - 1,
.flags = IORESOURCE_MEM,
}, {
- .name = "nand_data",
- .start = NAND_IO_DATA,
- .end = NAND_IO_DATA + 0xfff,
+ .name = "fsmc_regs",
+ .start = NOMADIK_FSMC_BASE,
+ .end = NOMADIK_FSMC_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
- }
+ },
};
-static int nhk8815_nand_init(void)
-{
- /* FSMC setup for nand chip select (8-bit nand in 8815NHK) */
- writel(0x0000000E, FSMC_PCR(0));
- writel(0x000D0A00, FSMC_PMEM(0));
- writel(0x00100A00, FSMC_PATT(0));
-
- /* enable access to the chip select area */
- writel(readl(FSMC_PCR(0)) | 0x04, FSMC_PCR(0));
-
- return 0;
-}
-
/*
* These partitions are the same as those used in the 2.6.20 release
* shipped by the vendor; the first two partitions are mandated
@@ -108,20 +103,28 @@ static struct mtd_partition nhk8815_partitions[] = {
}
};
-static struct nomadik_nand_platform_data nhk8815_nand_data = {
- .parts = nhk8815_partitions,
- .nparts = ARRAY_SIZE(nhk8815_partitions),
- .options = NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING,
- .init = nhk8815_nand_init,
+static struct fsmc_nand_timings nhk8815_nand_timings = {
+ .thiz = 0,
+ .thold = 0x10,
+ .twait = 0x0A,
+ .tset = 0,
+};
+
+static struct fsmc_nand_platform_data nhk8815_nand_platform_data = {
+ .nand_timings = &nhk8815_nand_timings,
+ .partitions = nhk8815_partitions,
+ .nr_partitions = ARRAY_SIZE(nhk8815_partitions),
+ .width = FSMC_NAND_BW8,
};
static struct platform_device nhk8815_nand_device = {
- .name = "nomadik_nand",
- .dev = {
- .platform_data = &nhk8815_nand_data,
+ .name = "fsmc-nand",
+ .id = -1,
+ .resource = nhk8815_nand_resources,
+ .num_resources = ARRAY_SIZE(nhk8815_nand_resources),
+ .dev = {
+ .platform_data = &nhk8815_nand_platform_data,
},
- .resource = nhk8815_nand_resources,
- .num_resources = ARRAY_SIZE(nhk8815_nand_resources),
};
/* These are the partitions for the OneNand device, different from above */
@@ -176,6 +179,10 @@ static struct platform_device nhk8815_onenand_device = {
.num_resources = ARRAY_SIZE(nhk8815_onenand_resource),
};
+/* bus control reg. and bus timing reg. for CS0..CS3 */
+#define FSMC_BCR(x) (NOMADIK_FSMC_VA + (x << 3))
+#define FSMC_BTR(x) (NOMADIK_FSMC_VA + (x << 3) + 0x04)
+
static void __init nhk8815_onenand_init(void)
{
#ifdef CONFIG_MTD_ONENAND
diff --git a/arch/arm/mach-nomadik/include/mach/fsmc.h b/arch/arm/mach-nomadik/include/mach/fsmc.h
deleted file mode 100644
index 8c2c051..0000000
--- a/arch/arm/mach-nomadik/include/mach/fsmc.h
+++ /dev/null
@@ -1,29 +0,0 @@
-
-/* Definitions for the Nomadik FSMC "Flexible Static Memory controller" */
-
-#ifndef __ASM_ARCH_FSMC_H
-#define __ASM_ARCH_FSMC_H
-
-#include <mach/hardware.h>
-/*
- * Register list
- */
-
-/* bus control reg. and bus timing reg. for CS0..CS3 */
-#define FSMC_BCR(x) (NOMADIK_FSMC_VA + (x << 3))
-#define FSMC_BTR(x) (NOMADIK_FSMC_VA + (x << 3) + 0x04)
-
-/* PC-card and NAND:
- * PCR = control register
- * PMEM = memory timing
- * PATT = attribute timing
- * PIO = I/O timing
- * PECCR = ECC result
- */
-#define FSMC_PCR(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x00)
-#define FSMC_PMEM(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x08)
-#define FSMC_PATT(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x0c)
-#define FSMC_PIO(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x10)
-#define FSMC_PECCR(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x14)
-
-#endif /* __ASM_ARCH_FSMC_H */
OpenPOWER on IntegriCloud