mtd: OneNand support for Nomadik 8815 SoC (on NHK8815 board)

Signed-off-by: Alessandro Rubini <rubini@unipv.it>
Acked-by: Andrea Gallo <andrea.gallo@stericsson.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 63 insertions, 0 deletions

diff --git a/arch/arm/mach-nomadik/board-nhk8815.c b/arch/arm/mach-nomadik/board-nhk8815.c
index 59c1dbb686c9..6bfd537d5afb 100644
--- a/arch/arm/mach-nomadik/board-nhk8815.c
+++ b/arch/arm/mach-nomadik/board-nhk8815.c
@@ -24,6 +24,7 @@
 #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>
@@ -112,6 +113,66 @@ static struct platform_device nhk8815_nand_device = {
         .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}
@@ -173,6 +234,7 @@ 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 */
 };
@@ -182,6 +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));