From 414f552ad872e19a7471644317a60f3cbba25ced Mon Sep 17 00:00:00 2001 From: Ladislav Michl Date: Fri, 11 Dec 2009 16:16:33 -0800 Subject: omap1: Use gen_nand Since omapnand driver never find its way into mainline, switch to gen_nand instead. Following patch is compile tested only, but it is based on code I wrote for NetStar board and runtime tested it there. Signed-off-by: Ladislav Michl Cc: Imre Deak Cc: Brian Swetland Cc: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/mach-omap1/board-h3.c | 56 ++++++++++++++++++++++++++++++------------ 1 file changed, 40 insertions(+), 16 deletions(-) (limited to 'arch/arm/mach-omap1/board-h3.c') diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c index e0aee66e43e6..6a7f9c391cf1 100644 --- a/arch/arm/mach-omap1/board-h3.c +++ b/arch/arm/mach-omap1/board-h3.c @@ -43,7 +43,6 @@ #include #include #include -#include #include #include #include @@ -182,11 +181,43 @@ static struct mtd_partition nand_partitions[] = { }, }; -/* dip switches control NAND chip access: 8 bit, 16 bit, or neither */ -static struct omap_nand_platform_data nand_data = { - .options = NAND_SAMSUNG_LP_OPTIONS, - .parts = nand_partitions, - .nr_parts = ARRAY_SIZE(nand_partitions), +static void nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl) +{ + struct nand_chip *this = mtd->priv; + unsigned long mask; + + if (cmd == NAND_CMD_NONE) + return; + + mask = (ctrl & NAND_CLE) ? 0x02 : 0; + if (ctrl & NAND_ALE) + mask |= 0x04; + writeb(cmd, (unsigned long)this->IO_ADDR_W | mask); +} + +#define H3_NAND_RB_GPIO_PIN 10 + +static int nand_dev_ready(struct mtd_info *mtd) +{ + return gpio_get_value(H3_NAND_RB_GPIO_PIN); +} + +static const char *part_probes[] = { "cmdlinepart", NULL }; + +struct platform_nand_data nand_platdata = { + .chip = { + .nr_chips = 1, + .chip_offset = 0, + .nr_partitions = ARRAY_SIZE(nand_partitions), + .partitions = nand_partitions, + .options = NAND_SAMSUNG_LP_OPTIONS, + .part_probe_types = part_probes, + }, + .ctrl = { + .cmd_ctrl = nand_cmd_ctl, + .dev_ready = nand_dev_ready, + + }, }; static struct resource nand_resource = { @@ -194,10 +225,10 @@ static struct resource nand_resource = { }; static struct platform_device nand_device = { - .name = "omapnand", + .name = "gen_nand", .id = 0, .dev = { - .platform_data = &nand_data, + .platform_data = &nand_platdata, }, .num_resources = 1, .resource = &nand_resource, @@ -342,13 +373,6 @@ static struct i2c_board_info __initdata h3_i2c_board_info[] = { }, }; -#define H3_NAND_RB_GPIO_PIN 10 - -static int nand_dev_ready(struct omap_nand_platform_data *data) -{ - return gpio_get_value(H3_NAND_RB_GPIO_PIN); -} - static void __init h3_init(void) { /* Here we assume the NOR boot config: NOR on CS3 (possibly swapped @@ -366,7 +390,7 @@ static void __init h3_init(void) nand_resource.end += SZ_4K - 1; if (gpio_request(H3_NAND_RB_GPIO_PIN, "NAND ready") < 0) BUG(); - nand_data.dev_ready = nand_dev_ready; + gpio_direction_input(H3_NAND_RB_GPIO_PIN); /* GPIO10 Func_MUX_CTRL reg bit 29:27, Configure V2 to mode1 as GPIO */ /* GPIO10 pullup/down register, Enable pullup on GPIO10 */ -- cgit v1.2.3-59-g8ed1b