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[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>
This commit is contained in:
wanzongshun 2009-02-12 02:57:21 +01:00 committed by Russell King
parent 9ee8c9f012
commit a12370f12f
1 changed files with 48 additions and 0 deletions
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48
arch/arm/mach-w90x900/mach-w90p910evb.c
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@ -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)