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-rw-r--r--arch/arm/mach-nomadik/board-nhk8815.c155
1 files changed, 155 insertions, 0 deletions
diff --git a/arch/arm/mach-nomadik/board-nhk8815.c b/arch/arm/mach-nomadik/board-nhk8815.c
index 79bdea9..6bfd537 100644
--- a/arch/arm/mach-nomadik/board-nhk8815.c
+++ b/arch/arm/mach-nomadik/board-nhk8815.c
@@ -16,12 +16,164 @@
#include <linux/amba/bus.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+#include <linux/io.h>
+#include <asm/sizes.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
+#include <asm/mach/flash.h>
#include <mach/setup.h>
+#include <mach/nand.h>
+#include <mach/fsmc.h>
#include "clock.h"
+/* These adresses span 16MB, so use three individual pages */
+static struct resource nhk8815_nand_resources[] = {
+ {
+ .name = "nand_addr",
+ .start = NAND_IO_ADDR,
+ .end = NAND_IO_ADDR + 0xfff,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .name = "nand_cmd",
+ .start = NAND_IO_CMD,
+ .end = NAND_IO_CMD + 0xfff,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .name = "nand_data",
+ .start = NAND_IO_DATA,
+ .end = NAND_IO_DATA + 0xfff,
+ .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
+ * by the boot ROM, and the bootloader area is somehow oversized...
+ */
+static struct mtd_partition nhk8815_partitions[] = {
+ {
+ .name = "X-Loader(NAND)",
+ .offset = 0,
+ .size = SZ_256K,
+ }, {
+ .name = "MemInit(NAND)",
+ .offset = MTDPART_OFS_APPEND,
+ .size = SZ_256K,
+ }, {
+ .name = "BootLoader(NAND)",
+ .offset = MTDPART_OFS_APPEND,
+ .size = SZ_2M,
+ }, {
+ .name = "Kernel zImage(NAND)",
+ .offset = MTDPART_OFS_APPEND,
+ .size = 3 * SZ_1M,
+ }, {
+ .name = "Root Filesystem(NAND)",
+ .offset = MTDPART_OFS_APPEND,
+ .size = 22 * SZ_1M,
+ }, {
+ .name = "User Filesystem(NAND)",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ }
+};
+
+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 \
+ | NAND_NO_READRDY | NAND_NO_AUTOINCR,
+ .init = nhk8815_nand_init,
+};
+
+static struct platform_device nhk8815_nand_device = {
+ .name = "nomadik_nand",
+ .dev = {
+ .platform_data = &nhk8815_nand_data,
+ },
+ .resource = nhk8815_nand_resources,
+ .num_resources = ARRAY_SIZE(nhk8815_nand_resources),
+};
+
+/* These are the partitions for the OneNand device, different from above */
+static struct mtd_partition nhk8815_onenand_partitions[] = {
+ {
+ .name = "X-Loader(OneNAND)",
+ .offset = 0,
+ .size = SZ_256K,
+ }, {
+ .name = "MemInit(OneNAND)",
+ .offset = MTDPART_OFS_APPEND,
+ .size = SZ_256K,
+ }, {
+ .name = "BootLoader(OneNAND)",
+ .offset = MTDPART_OFS_APPEND,
+ .size = SZ_2M-SZ_256K,
+ }, {
+ .name = "SysImage(OneNAND)",
+ .offset = MTDPART_OFS_APPEND,
+ .size = 4 * SZ_1M,
+ }, {
+ .name = "Root Filesystem(OneNAND)",
+ .offset = MTDPART_OFS_APPEND,
+ .size = 22 * SZ_1M,
+ }, {
+ .name = "User Filesystem(OneNAND)",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ }
+};
+
+static struct flash_platform_data nhk8815_onenand_data = {
+ .parts = nhk8815_onenand_partitions,
+ .nr_parts = ARRAY_SIZE(nhk8815_onenand_partitions),
+};
+
+static struct resource nhk8815_onenand_resource[] = {
+ {
+ .start = 0x30000000,
+ .end = 0x30000000 + SZ_128K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device nhk8815_onenand_device = {
+ .name = "onenand",
+ .id = -1,
+ .dev = {
+ .platform_data = &nhk8815_onenand_data,
+ },
+ .resource = nhk8815_onenand_resource,
+ .num_resources = ARRAY_SIZE(nhk8815_onenand_resource),
+};
+
+static void __init nhk8815_onenand_init(void)
+{
+#ifdef CONFIG_ONENAND
+ /* Set up SMCS0 for OneNand */
+ writel(0x000030db, FSMC_BCR0);
+ writel(0x02100551, FSMC_BTR0);
+#endif
+}
+
#define __MEM_4K_RESOURCE(x) \
.res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM}
@@ -81,6 +233,8 @@ static int __init nhk8815_eth_init(void)
device_initcall(nhk8815_eth_init);
static struct platform_device *nhk8815_platform_devices[] __initdata = {
+ &nhk8815_nand_device,
+ &nhk8815_onenand_device,
&nhk8815_eth_device,
/* will add more devices */
};
@@ -90,6 +244,7 @@ static void __init nhk8815_platform_init(void)
int i;
cpu8815_platform_init();
+ nhk8815_onenand_init();
platform_add_devices(nhk8815_platform_devices,
ARRAY_SIZE(nhk8815_platform_devices));