diff options
Diffstat (limited to 'arch/sh/boards/renesas')
| -rw-r--r-- | arch/sh/boards/renesas/migor/setup.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/arch/sh/boards/renesas/migor/setup.c b/arch/sh/boards/renesas/migor/setup.c index 44d9b5675ec..bc7a4cec127 100644 --- a/arch/sh/boards/renesas/migor/setup.c +++ b/arch/sh/boards/renesas/migor/setup.c @@ -12,6 +12,7 @@ #include <linux/interrupt.h> #include <linux/input.h> #include <linux/mtd/physmap.h> +#include <linux/mtd/nand.h> #include <asm/machvec.h> #include <asm/io.h> #include <asm/sh_keysc.h> @@ -122,10 +123,77 @@ static struct platform_device migor_nor_flash_device = { }, }; +static struct mtd_partition migor_nand_flash_partitions[] = { + { + .name = "nanddata1", + .offset = 0x0, + .size = 512 * 1024 * 1024, + }, + { + .name = "nanddata2", + .offset = MTDPART_OFS_APPEND, + .size = 512 * 1024 * 1024, + }, +}; + +static void migor_nand_flash_cmd_ctl(struct mtd_info *mtd, int cmd, + unsigned int ctrl) +{ + struct nand_chip *chip = mtd->priv; + + if (cmd == NAND_CMD_NONE) + return; + + if (ctrl & NAND_CLE) + writeb(cmd, chip->IO_ADDR_W + 0x00400000); + else if (ctrl & NAND_ALE) + writeb(cmd, chip->IO_ADDR_W + 0x00800000); + else + writeb(cmd, chip->IO_ADDR_W); +} + +static int migor_nand_flash_ready(struct mtd_info *mtd) +{ + return ctrl_inb(PORT_PADR) & 0x02; /* PTA1 */ +} + +struct platform_nand_data migor_nand_flash_data = { + .chip = { + .nr_chips = 1, + .partitions = migor_nand_flash_partitions, + .nr_partitions = ARRAY_SIZE(migor_nand_flash_partitions), + .chip_delay = 20, + .part_probe_types = (const char *[]) { "cmdlinepart", NULL }, + }, + .ctrl = { + .dev_ready = migor_nand_flash_ready, + .cmd_ctrl = migor_nand_flash_cmd_ctl, + }, +}; + +static struct resource migor_nand_flash_resources[] = { + [0] = { + .name = "NAND Flash", + .start = 0x18000000, + .end = 0x18ffffff, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device migor_nand_flash_device = { + .name = "gen_nand", + .resource = migor_nand_flash_resources, + .num_resources = ARRAY_SIZE(migor_nand_flash_resources), + .dev = { + .platform_data = &migor_nand_flash_data, + } +}; + static struct platform_device *migor_devices[] __initdata = { &smc91x_eth_device, &sh_keysc_device, &migor_nor_flash_device, + &migor_nand_flash_device, }; static int __init migor_devices_setup(void) @@ -146,6 +214,11 @@ static void __init migor_setup(char **cmdline_p) ctrl_outw(ctrl_inw(PORT_HIZCRA) & ~0x4000, PORT_HIZCRA); ctrl_outw(ctrl_inw(PORT_HIZCRC) & ~0xc000, PORT_HIZCRC); ctrl_outl(ctrl_inl(MSTPCR2) & ~0x00004000, MSTPCR2); + + /* NAND Flash */ + ctrl_outw(ctrl_inw(PORT_PXCR) & 0x0fff, PORT_PXCR); + ctrl_outl((ctrl_inl(BSC_CS6ABCR) & ~0x00000600) | 0x00000200, + BSC_CS6ABCR); } static struct sh_machine_vector mv_migor __initmv = { |