diff options
Diffstat (limited to 'arch/blackfin/mach-bf537/boards/stamp.c')
| -rw-r--r-- | arch/blackfin/mach-bf537/boards/stamp.c | 129 |
1 files changed, 120 insertions, 9 deletions
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c index 671f9d67f23..8482d22321f 100644 --- a/arch/blackfin/mach-bf537/boards/stamp.c +++ b/arch/blackfin/mach-bf537/boards/stamp.c @@ -29,9 +29,12 @@ */ #include <linux/device.h> +#include <linux/kernel.h> #include <linux/platform_device.h> #include <linux/mtd/mtd.h> +#include <linux/mtd/nand.h> #include <linux/mtd/partitions.h> +#include <linux/mtd/plat-ram.h> #include <linux/mtd/physmap.h> #include <linux/spi/spi.h> #include <linux/spi/flash.h> @@ -355,22 +358,100 @@ static struct platform_device net2272_bfin_device = { }; #endif +#if defined(CONFIG_MTD_NAND_PLATFORM) || defined(CONFIG_MTD_NAND_PLATFORM_MODULE) +#ifdef CONFIG_MTD_PARTITIONS +const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL }; + +static struct mtd_partition bfin_plat_nand_partitions[] = { + { + .name = "linux kernel(nand)", + .size = 0x400000, + .offset = 0, + }, { + .name = "file system(nand)", + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, + }, +}; +#endif + +#define BFIN_NAND_PLAT_CLE 2 +#define BFIN_NAND_PLAT_ALE 1 +static void bfin_plat_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) +{ + struct nand_chip *this = mtd->priv; + + if (cmd == NAND_CMD_NONE) + return; + + if (ctrl & NAND_CLE) + writeb(cmd, this->IO_ADDR_W + (1 << BFIN_NAND_PLAT_CLE)); + else + writeb(cmd, this->IO_ADDR_W + (1 << BFIN_NAND_PLAT_ALE)); +} + +#define BFIN_NAND_PLAT_READY GPIO_PF3 +static int bfin_plat_nand_dev_ready(struct mtd_info *mtd) +{ + return gpio_get_value(BFIN_NAND_PLAT_READY); +} + +static struct platform_nand_data bfin_plat_nand_data = { + .chip = { + .chip_delay = 30, +#ifdef CONFIG_MTD_PARTITIONS + .part_probe_types = part_probes, + .partitions = bfin_plat_nand_partitions, + .nr_partitions = ARRAY_SIZE(bfin_plat_nand_partitions), +#endif + }, + .ctrl = { + .cmd_ctrl = bfin_plat_nand_cmd_ctrl, + .dev_ready = bfin_plat_nand_dev_ready, + }, +}; + +#define MAX(x, y) (x > y ? x : y) +static struct resource bfin_plat_nand_resources = { + .start = 0x20212000, + .end = 0x20212000 + (1 << MAX(BFIN_NAND_PLAT_CLE, BFIN_NAND_PLAT_ALE)), + .flags = IORESOURCE_IO, +}; + +static struct platform_device bfin_async_nand_device = { + .name = "gen_nand", + .id = -1, + .num_resources = 1, + .resource = &bfin_plat_nand_resources, + .dev = { + .platform_data = &bfin_plat_nand_data, + }, +}; + +static void bfin_plat_nand_init(void) +{ + gpio_request(BFIN_NAND_PLAT_READY, "bfin_nand_plat"); +} +#else +static void bfin_plat_nand_init(void) {} +#endif + #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE) static struct mtd_partition stamp_partitions[] = { { - .name = "Bootloader", + .name = "bootloader(nor)", .size = 0x40000, .offset = 0, }, { - .name = "Kernel", + .name = "linux kernel(nor)", .size = 0xE0000, .offset = MTDPART_OFS_APPEND, }, { - .name = "RootFS", + .name = "file system(nor)", .size = 0x400000 - 0x40000 - 0xE0000 - 0x10000, .offset = MTDPART_OFS_APPEND, }, { - .name = "MAC Address", + .name = "MAC Address(nor)", .size = MTDPART_SIZ_FULL, .offset = 0x3F0000, .mask_flags = MTD_WRITEABLE, @@ -404,16 +485,16 @@ static struct platform_device stamp_flash_device = { || defined(CONFIG_MTD_M25P80_MODULE) static struct mtd_partition bfin_spi_flash_partitions[] = { { - .name = "bootloader", + .name = "bootloader(spi)", .size = 0x00040000, .offset = 0, .mask_flags = MTD_CAP_ROM }, { - .name = "kernel", + .name = "linux kernel(spi)", .size = 0xe0000, .offset = MTDPART_OFS_APPEND, }, { - .name = "file system", + .name = "file system(spi)", .size = MTDPART_SIZ_FULL, .offset = MTDPART_OFS_APPEND, } @@ -503,6 +584,30 @@ static struct bfin5xx_spi_chip spidev_chip_info = { #if defined(CONFIG_MTD_DATAFLASH) \ || defined(CONFIG_MTD_DATAFLASH_MODULE) + +static struct mtd_partition bfin_spi_dataflash_partitions[] = { + { + .name = "bootloader(spi)", + .size = 0x00040000, + .offset = 0, + .mask_flags = MTD_CAP_ROM + }, { + .name = "linux kernel(spi)", + .size = 0xe0000, + .offset = MTDPART_OFS_APPEND, + }, { + .name = "file system(spi)", + .size = MTDPART_SIZ_FULL, + .offset = MTDPART_OFS_APPEND, + } +}; + +static struct flash_platform_data bfin_spi_dataflash_data = { + .name = "SPI Dataflash", + .parts = bfin_spi_dataflash_partitions, + .nr_parts = ARRAY_SIZE(bfin_spi_dataflash_partitions), +}; + /* DataFlash chip */ static struct bfin5xx_spi_chip data_flash_chip_info = { .enable_dma = 0, /* use dma transfer with this chip*/ @@ -528,9 +633,10 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = { || defined(CONFIG_MTD_DATAFLASH_MODULE) { /* DataFlash chip */ .modalias = "mtd_dataflash", - .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ + .max_speed_hz = 33250000, /* max spi clock (SCK) speed in HZ */ .bus_num = 0, /* Framework bus number */ .chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/ + .platform_data = &bfin_spi_dataflash_data, .controller_data = &data_flash_chip_info, .mode = SPI_MODE_3, }, @@ -780,7 +886,7 @@ static struct platform_device bfin_sport1_uart_device = { #endif #if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE) -#define PATA_INT 55 +#define PATA_INT IRQ_PF5 static struct pata_platform_info bfin_pata_platform_data = { .ioport_shift = 1, @@ -922,6 +1028,10 @@ static struct platform_device *stamp_devices[] __initdata = { &bfin_gpios_device, +#if defined(CONFIG_MTD_NAND_PLATFORM) || defined(CONFIG_MTD_NAND_PLATFORM_MODULE) + &bfin_async_nand_device, +#endif + #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE) &stamp_flash_device, #endif @@ -936,6 +1046,7 @@ static int __init stamp_init(void) ARRAY_SIZE(bfin_i2c_board_info)); #endif + bfin_plat_nand_init(); platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices)); spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info)); |