[ARM] 5393/1: Add W90P910 EVB NOR flash driver

Add W90P910 Evaluate Board NOR flash driver support,
The EV Board default support W19B320ABT7H of Winbond inc.

Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 48 insertions, 0 deletions

diff --git a/arch/arm/mach-w90x900/mach-w90p910evb.c b/arch/arm/mach-w90x900/mach-w90p910evb.c
index 542527019b65..726ff6798a56 100644
--- a/arch/arm/mach-w90x900/mach-w90p910evb.c
+++ b/arch/arm/mach-w90x900/mach-w90p910evb.c
@@ -22,6 +22,7 @@
 #include <linux/timer.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -32,6 +33,52 @@
 #include <mach/map.h>
 
 #include "cpu.h"
+/*w90p910 evb norflash driver data */
+
+#define W90P910_FLASH_BASE      0xA0000000
+#define W90P910_FLASH_SIZE      0x400000
+
+static struct mtd_partition w90p910_flash_partitions[] = {
+        {
+                .name   =       "NOR Partition 1 for kernel (960K)",
+                .size   =       0xF0000,
+                .offset =       0x10000,
+        },
+        {
+                .name   =       "NOR Partition 2 for image (1M)",
+                .size   =       0x100000,
+                .offset =       0x100000,
+        },
+        {
+                .name   =       "NOR Partition 3 for user (2M)",
+                .size   =       0x200000,
+                .offset =       0x00200000,
+        }
+};
+
+static struct physmap_flash_data w90p910_flash_data = {
+        .width          =       2,
+        .parts          =       w90p910_flash_partitions,
+        .nr_parts       =       ARRAY_SIZE(w90p910_flash_partitions),
+};
+
+static struct resource w90p910_flash_resources[] = {
+        {
+                .start  =       W90P910_FLASH_BASE,
+                .end    =       W90P910_FLASH_BASE + W90P910_FLASH_SIZE - 1,
+                .flags  =       IORESOURCE_MEM,
+        }
+};
+
+static struct platform_device w90p910_flash_device = {
+        .name           =       "physmap-flash",
+        .id             =       0,
+        .dev            = {
+                                .platform_data = &w90p910_flash_data,
+                        },
+        .resource       =       w90p910_flash_resources,
+        .num_resources  =       ARRAY_SIZE(w90p910_flash_resources),
+};
 
 static struct map_desc w90p910_iodesc[] __initdata = {
 };
@@ -40,6 +87,7 @@ static struct map_desc w90p910_iodesc[] __initdata = {
 
 static struct platform_device *w90p910evb_dev[] __initdata = {
         &w90p910_serial_device,
+        &w90p910_flash_device,
 };
 
 static void __init w90p910evb_map_io(void)