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Commit a12370f1 authored by wanzongshun's avatar wanzongshun Committed by Russell King
Browse files

[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: default avatarWan ZongShun <mcuos.com@gmail.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 9ee8c9f0

arch/arm/mach-w90x900/mach-w90p910evb.c

+48 −0
Original line number Diff line number Diff line
@@ -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)