diff options
| -rw-r--r-- | arch/arm/mach-pxa/cm-x255.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/cm-x255.c b/arch/arm/mach-pxa/cm-x255.c index 15c5b9dc638..83a4cdf0817 100644 --- a/arch/arm/mach-pxa/cm-x255.c +++ b/arch/arm/mach-pxa/cm-x255.c @@ -12,6 +12,9 @@ #include <linux/platform_device.h> #include <linux/irq.h> #include <linux/gpio.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> +#include <linux/mtd/nand-gpio.h> #include <linux/spi/spi.h> @@ -26,6 +29,11 @@ #include "generic.h" +#define GPIO_NAND_CS (5) +#define GPIO_NAND_ALE (4) +#define GPIO_NAND_CLE (3) +#define GPIO_NAND_RB (10) + static unsigned long cmx255_pin_config[] = { /* AC'97 */ GPIO28_AC97_BITCLK, @@ -134,9 +142,117 @@ static void __init cmx255_init_rtc(void) static inline void cmx255_init_rtc(void) {} #endif +#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE) +static struct mtd_partition cmx255_nor_partitions[] = { + { + .name = "ARMmon", + .size = 0x00030000, + .offset = 0, + .mask_flags = MTD_WRITEABLE /* force read-only */ + } , { + .name = "ARMmon setup block", + .size = 0x00010000, + .offset = MTDPART_OFS_APPEND, + .mask_flags = MTD_WRITEABLE /* force read-only */ + } , { + .name = "kernel", + .size = 0x00160000, + .offset = MTDPART_OFS_APPEND, + } , { + .name = "ramdisk", + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND + } +}; + +static struct physmap_flash_data cmx255_nor_flash_data[] = { + { + .width = 2, /* bankwidth in bytes */ + .parts = cmx255_nor_partitions, + .nr_parts = ARRAY_SIZE(cmx255_nor_partitions) + } +}; + +static struct resource cmx255_nor_resource = { + .start = PXA_CS0_PHYS, + .end = PXA_CS0_PHYS + SZ_8M - 1, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device cmx255_nor = { + .name = "physmap-flash", + .id = -1, + .dev = { + .platform_data = cmx255_nor_flash_data, + }, + .resource = &cmx255_nor_resource, + .num_resources = 1, +}; + +static void __init cmx255_init_nor(void) +{ + platform_device_register(&cmx255_nor); +} +#else +static inline void cmx255_init_nor(void) {} +#endif + +#if defined(CONFIG_MTD_NAND_GPIO) || defined(CONFIG_MTD_NAND_GPIO_MODULE) +static struct resource cmx255_nand_resource[] = { + [0] = { + .start = PXA_CS1_PHYS, + .end = PXA_CS1_PHYS + 11, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = PXA_CS5_PHYS, + .end = PXA_CS5_PHYS + 3, + .flags = IORESOURCE_MEM, + }, +}; + +static struct mtd_partition cmx255_nand_parts[] = { + [0] = { + .name = "cmx255-nand", + .size = MTDPART_SIZ_FULL, + .offset = 0, + }, +}; + +static struct gpio_nand_platdata cmx255_nand_platdata = { + .gpio_nce = GPIO_NAND_CS, + .gpio_cle = GPIO_NAND_CLE, + .gpio_ale = GPIO_NAND_ALE, + .gpio_rdy = GPIO_NAND_RB, + .gpio_nwp = -1, + .parts = cmx255_nand_parts, + .num_parts = ARRAY_SIZE(cmx255_nand_parts), + .chip_delay = 25, +}; + +static struct platform_device cmx255_nand = { + .name = "gpio-nand", + .num_resources = ARRAY_SIZE(cmx255_nand_resource), + .resource = cmx255_nand_resource, + .id = -1, + .dev = { + .platform_data = &cmx255_nand_platdata, + } +}; + +static void __init cmx255_init_nand(void) +{ + platform_device_register(&cmx255_nand); +} +#else +static inline void cmx255_init_nand(void) {} +#endif + void __init cmx255_init(void) { pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx255_pin_config)); cmx255_init_rtc(); + cmx255_init_nor(); + cmx255_init_nand(); } |