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authorSean MacLennan <smaclennan@pikatech.com>2009-01-09 18:20:11 +0000
committerJosh Boyer <jwboyer@linux.vnet.ibm.com>2009-01-20 08:17:21 -0500
commite275e023aa69bdc6a2f43b86ca3aa93a22e47837 (patch)
tree15e691fe30f323239b3ec2688980c0f2412c815f /arch
parent94ce1c585ed51dd9e72e812117e11f3f236a5399 (diff)
downloadop-kernel-dev-e275e023aa69bdc6a2f43b86ca3aa93a22e47837.zip
op-kernel-dev-e275e023aa69bdc6a2f43b86ca3aa93a22e47837.tar.gz
powerpc/44x: Warp patches for the new NDFC driver
Convert the Warp platform to use the newly merged NDFC driver - warp.dts changed to work with ndfc - warp-nand.c no longer needed - removed obsolete rev A support from cuboot-warp.c Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/boot/cuboot-warp.c43
-rw-r--r--arch/powerpc/boot/dts/warp.dts42
-rw-r--r--arch/powerpc/platforms/44x/Makefile1
-rw-r--r--arch/powerpc/platforms/44x/warp-nand.c135
4 files changed, 41 insertions, 180 deletions
diff --git a/arch/powerpc/boot/cuboot-warp.c b/arch/powerpc/boot/cuboot-warp.c
index 2178021..806df69 100644
--- a/arch/powerpc/boot/cuboot-warp.c
+++ b/arch/powerpc/boot/cuboot-warp.c
@@ -18,57 +18,14 @@
static bd_t bd;
-static void warp_fixup_one_nor(u32 from, u32 to)
-{
- void *devp;
- char name[50];
- u32 v[2];
-
- sprintf(name, "/plb/opb/ebc/nor_flash@0,0/partition@%x", from);
-
- devp = finddevice(name);
- if (!devp)
- return;
-
- if (getprop(devp, "reg", v, sizeof(v)) == sizeof(v)) {
- v[0] = to;
- setprop(devp, "reg", v, sizeof(v));
-
- printf("NOR 64M fixup %x -> %x\r\n", from, to);
- }
-}
-
-
static void warp_fixups(void)
{
ibm440ep_fixup_clocks(66000000, 11059200, 50000000);
ibm4xx_sdram_fixup_memsize();
ibm4xx_fixup_ebc_ranges("/plb/opb/ebc");
dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
-
- /* Fixup for 64M flash on Rev A boards. */
- if (bd.bi_flashsize == 0x4000000) {
- void *devp;
- u32 v[3];
-
- devp = finddevice("/plb/opb/ebc/nor_flash@0,0");
- if (!devp)
- return;
-
- /* Fixup the size */
- if (getprop(devp, "reg", v, sizeof(v)) == sizeof(v)) {
- v[2] = bd.bi_flashsize;
- setprop(devp, "reg", v, sizeof(v));
- }
-
- /* Fixup parition offsets */
- warp_fixup_one_nor(0x300000, 0x3f00000);
- warp_fixup_one_nor(0x340000, 0x3f40000);
- warp_fixup_one_nor(0x380000, 0x3f80000);
- }
}
-
void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
diff --git a/arch/powerpc/boot/dts/warp.dts b/arch/powerpc/boot/dts/warp.dts
index f4e4ba6..7e183ff 100644
--- a/arch/powerpc/boot/dts/warp.dts
+++ b/arch/powerpc/boot/dts/warp.dts
@@ -149,12 +149,17 @@
reg = <0x00000002 0x00004000 0x00000A00>;
};
- nor_flash@0,0 {
+ nor@0,0 {
compatible = "amd,s29gl032a", "cfi-flash";
bank-width = <2>;
reg = <0x00000000 0x00000000 0x00400000>;
#address-cells = <1>;
#size-cells = <1>;
+
+ partition@0 {
+ label = "splash";
+ reg = <0x00000000 0x00020000>;
+ };
partition@300000 {
label = "fpga";
reg = <0x0300000 0x00040000>;
@@ -168,6 +173,41 @@
reg = <0x0380000 0x00080000>;
};
};
+
+ ndfc@1,0 {
+ compatible = "ibm,ndfc";
+ reg = <0x00000001 0x00000000 0x00002000>;
+ ccr = <0x00001000>;
+ bank-settings = <0x80002222>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ nand {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "kernel";
+ reg = <0x00000000 0x00200000>;
+ };
+ partition@200000 {
+ label = "root";
+ reg = <0x00200000 0x03E00000>;
+ };
+ partition@40000000 {
+ label = "persistent";
+ reg = <0x04000000 0x04000000>;
+ };
+ partition@80000000 {
+ label = "persistent1";
+ reg = <0x08000000 0x04000000>;
+ };
+ partition@C0000000 {
+ label = "persistent2";
+ reg = <0x0C000000 0x04000000>;
+ };
+ };
+ };
};
UART0: serial@ef600300 {
diff --git a/arch/powerpc/platforms/44x/Makefile b/arch/powerpc/platforms/44x/Makefile
index 6981331..01f51da 100644
--- a/arch/powerpc/platforms/44x/Makefile
+++ b/arch/powerpc/platforms/44x/Makefile
@@ -3,5 +3,4 @@ obj-$(CONFIG_PPC44x_SIMPLE) += ppc44x_simple.o
obj-$(CONFIG_EBONY) += ebony.o
obj-$(CONFIG_SAM440EP) += sam440ep.o
obj-$(CONFIG_WARP) += warp.o
-obj-$(CONFIG_WARP) += warp-nand.o
obj-$(CONFIG_XILINX_VIRTEX_5_FXT) += virtex.o
diff --git a/arch/powerpc/platforms/44x/warp-nand.c b/arch/powerpc/platforms/44x/warp-nand.c
deleted file mode 100644
index 89ecd76..0000000
--- a/arch/powerpc/platforms/44x/warp-nand.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * PIKA Warp(tm) NAND flash specific routines
- *
- * Copyright (c) 2008 PIKA Technologies
- * Sean MacLennan <smaclennan@pikatech.com>
- */
-
-#include <linux/platform_device.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/ndfc.h>
-#include <linux/of.h>
-#include <asm/machdep.h>
-
-
-#ifdef CONFIG_MTD_NAND_NDFC
-
-#define CS_NAND_0 1 /* use chip select 1 for NAND device 0 */
-
-#define WARP_NAND_FLASH_REG_ADDR 0xD0000000UL
-#define WARP_NAND_FLASH_REG_SIZE 0x2000
-
-static struct resource warp_ndfc = {
- .start = WARP_NAND_FLASH_REG_ADDR,
- .end = WARP_NAND_FLASH_REG_ADDR + WARP_NAND_FLASH_REG_SIZE - 1,
- .flags = IORESOURCE_MEM,
-};
-
-static struct mtd_partition nand_parts[] = {
- {
- .name = "kernel",
- .offset = 0,
- .size = 0x0200000
- },
- {
- .name = "root",
- .offset = 0x0200000,
- .size = 0x3E00000
- },
- {
- .name = "persistent",
- .offset = 0x4000000,
- .size = 0x4000000
- },
- {
- .name = "persistent1",
- .offset = 0x8000000,
- .size = 0x4000000
- },
- {
- .name = "persistent2",
- .offset = 0xC000000,
- .size = 0x4000000
- }
-};
-
-struct ndfc_controller_settings warp_ndfc_settings = {
- .ccr_settings = (NDFC_CCR_BS(CS_NAND_0) | NDFC_CCR_ARAC1),
- .ndfc_erpn = 0,
-};
-
-static struct ndfc_chip_settings warp_chip0_settings = {
- .bank_settings = 0x80002222,
-};
-
-struct platform_nand_ctrl warp_nand_ctrl = {
- .priv = &warp_ndfc_settings,
-};
-
-static struct platform_device warp_ndfc_device = {
- .name = "ndfc-nand",
- .id = 0,
- .dev = {
- .platform_data = &warp_nand_ctrl,
- },
- .num_resources = 1,
- .resource = &warp_ndfc,
-};
-
-/* Do NOT set the ecclayout: let it default so it is correct for both
- * 64M and 256M flash chips.
- */
-static struct platform_nand_chip warp_nand_chip0 = {
- .nr_chips = 1,
- .chip_offset = CS_NAND_0,
- .nr_partitions = ARRAY_SIZE(nand_parts),
- .partitions = nand_parts,
- .chip_delay = 20,
- .priv = &warp_chip0_settings,
-};
-
-static struct platform_device warp_nand_device = {
- .name = "ndfc-chip",
- .id = 0,
- .num_resources = 0,
- .dev = {
- .platform_data = &warp_nand_chip0,
- .parent = &warp_ndfc_device.dev,
- }
-};
-
-static int warp_setup_nand_flash(void)
-{
- struct device_node *np;
-
- /* Try to detect a rev A based on NOR size. */
- np = of_find_compatible_node(NULL, NULL, "cfi-flash");
- if (np) {
- struct property *pp;
-
- pp = of_find_property(np, "reg", NULL);
- if (pp && (pp->length == 12)) {
- u32 *v = pp->value;
- if (v[2] == 0x4000000) {
- /* Rev A = 64M NAND */
- warp_nand_chip0.nr_partitions = 3;
-
- nand_parts[1].size = 0x3000000;
- nand_parts[2].offset = 0x3200000;
- nand_parts[2].size = 0x0e00000;
- }
- }
- of_node_put(np);
- }
-
- platform_device_register(&warp_ndfc_device);
- platform_device_register(&warp_nand_device);
-
- return 0;
-}
-machine_device_initcall(warp, warp_setup_nand_flash);
-
-#endif
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