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sh: kfr2r09 board support - NAND flash 

This patch adds support for the NAND flash chip
attached to CS4 on the KFR2R09 board. The device is
driven by the platform device driver "onenand-flash".

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2009-08-06 14:58:43 +00:00 committed by Paul Mundt
parent 9f26e659d8
commit 33893d7aa0
1 changed files with 23 additions and 0 deletions
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23
arch/sh/boards/mach-kfr2r09/setup.c
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@ -11,6 +11,7 @@
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/onenand.h>
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/gpio.h>
@ -62,6 +63,21 @@ static struct platform_device kfr2r09_nor_flash_device = {
},
};
static struct resource kfr2r09_nand_flash_resources[] = {
[0] = {
.name = "NAND Flash",
.start = 0x10000000,
.end = 0x1001ffff,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device kfr2r09_nand_flash_device = {
.name = "onenand-flash",
.resource = kfr2r09_nand_flash_resources,
.num_resources = ARRAY_SIZE(kfr2r09_nand_flash_resources),
};
static struct sh_keysc_info kfr2r09_sh_keysc_info = {
.mode = SH_KEYSC_MODE_1, /* KEYOUT0->4, KEYIN0->4 */
.scan_timing = 3,
@ -161,12 +177,15 @@ static struct platform_device kfr2r09_sh_lcdc_device = {
static struct platform_device *kfr2r09_devices[] __initdata = {
&kfr2r09_nor_flash_device,
&kfr2r09_nand_flash_device,
&kfr2r09_sh_keysc_device,
&kfr2r09_sh_lcdc_device,
};
#define BSC_CS0BCR 0xfec10004
#define BSC_CS0WCR 0xfec10024
#define BSC_CS4BCR 0xfec10010
#define BSC_CS4WCR 0xfec10030
static int __init kfr2r09_devices_setup(void)
{
@ -178,6 +197,10 @@ static int __init kfr2r09_devices_setup(void)
ctrl_outl(0x36db0400, BSC_CS0BCR);
ctrl_outl(0x00000500, BSC_CS0WCR);
/* setup NAND flash at CS4 */
ctrl_outl(0x36db0400, BSC_CS4BCR);
ctrl_outl(0x00000500, BSC_CS4WCR);
/* setup KEYSC pins */
gpio_request(GPIO_FN_KEYOUT0, NULL);
gpio_request(GPIO_FN_KEYOUT1, NULL);