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>
diff --git a/arch/sh/boards/mach-kfr2r09/setup.c b/arch/sh/boards/mach-kfr2r09/setup.c
index 1355080..bdb10c2 100644
--- a/arch/sh/boards/mach-kfr2r09/setup.c
+++ b/arch/sh/boards/mach-kfr2r09/setup.c
@@ -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 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_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 @@
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);