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omap3: cm-t3517: add support for NAND flash 

add support for NAND flash.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Igor Grinberg 2010-09-21 16:03:12 +00:00 committed by Tony Lindgren
parent 525d75b31b
commit ec34fccd3a
1 changed files with 54 additions and 0 deletions
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54
arch/arm/mach-omap2/board-cm-t3517.c
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@ -29,6 +29,9 @@
#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/rtc-v3020.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@ -38,6 +41,8 @@
#include <plat/common.h>
#include <plat/control.h>
#include <plat/usb.h>
#include <plat/nand.h>
#include <plat/gpmc.h>
#include "mux.h"
@ -143,6 +148,54 @@ static inline int cm_t3517_init_usbh(void)
}
#endif
#if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
#define NAND_BLOCK_SIZE SZ_128K
static struct mtd_partition cm_t3517_nand_partitions[] = {
{
.name = "xloader",
.offset = 0, /* Offset = 0x00000 */
.size = 4 * NAND_BLOCK_SIZE,
.mask_flags = MTD_WRITEABLE
},
{
.name = "uboot",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
.size = 15 * NAND_BLOCK_SIZE,
},
{
.name = "uboot environment",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
.size = 2 * NAND_BLOCK_SIZE,
},
{
.name = "linux",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
.size = 32 * NAND_BLOCK_SIZE,
},
{
.name = "rootfs",
.offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
.size = MTDPART_SIZ_FULL,
},
};
static struct omap_nand_platform_data cm_t3517_nand_data = {
.parts = cm_t3517_nand_partitions,
.nr_parts = ARRAY_SIZE(cm_t3517_nand_partitions),
.dma_channel = -1, /* disable DMA in OMAP NAND driver */
.cs = 0,
};
static void __init cm_t3517_init_nand(void)
{
if (gpmc_nand_init(&cm_t3517_nand_data) < 0)
pr_err("CM-T3517: NAND initialization failed\n");
}
#else
static inline void cm_t3517_init_nand(void) {}
#endif
static struct omap_board_config_kernel cm_t3517_config[] __initdata = {
};
@ -179,6 +232,7 @@ static void __init cm_t3517_init(void)
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
omap_serial_init();
cm_t3517_init_leds();
cm_t3517_init_nand();
cm_t3517_init_rtc();
cm_t3517_init_usbh();
}