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kernel
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linux
[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>
authored by
wanzongshun
and committed by
Russell King
a12370f1
9ee8c9f0
+48
+48
arch/arm/mach-w90x900/mach-w90p910evb.c
+48
arch/arm/mach-w90x900/mach-w90p910evb.c
···
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/physmap.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
···
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#include <mach/map.h>
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#include "cpu.h"
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/*w90p910 evb norflash driver data */
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#define W90P910_FLASH_BASE 0xA0000000
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#define W90P910_FLASH_SIZE 0x400000
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static struct mtd_partition w90p910_flash_partitions[] = {
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{
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.name = "NOR Partition 1 for kernel (960K)",
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.size = 0xF0000,
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.offset = 0x10000,
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},
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{
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.name = "NOR Partition 2 for image (1M)",
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.size = 0x100000,
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.offset = 0x100000,
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},
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{
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.name = "NOR Partition 3 for user (2M)",
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.size = 0x200000,
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.offset = 0x00200000,
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}
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};
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static struct physmap_flash_data w90p910_flash_data = {
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.width = 2,
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.parts = w90p910_flash_partitions,
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.nr_parts = ARRAY_SIZE(w90p910_flash_partitions),
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};
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static struct resource w90p910_flash_resources[] = {
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{
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.start = W90P910_FLASH_BASE,
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.end = W90P910_FLASH_BASE + W90P910_FLASH_SIZE - 1,
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.flags = IORESOURCE_MEM,
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}
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};
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static struct platform_device w90p910_flash_device = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &w90p910_flash_data,
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},
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.resource = w90p910_flash_resources,
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.num_resources = ARRAY_SIZE(w90p910_flash_resources),
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};
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static struct map_desc w90p910_iodesc[] __initdata = {
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};
···
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static struct platform_device *w90p910evb_dev[] __initdata = {
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&w90p910_serial_device,
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&w90p910_flash_device,
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};
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static void __init w90p910evb_map_io(void)