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authorLadislav Michl <ladis@linux-mips.org>2009-12-11 16:16:33 -0800
committerTony Lindgren <tony@atomide.com>2009-12-11 16:16:33 -0800
commit414f552ad872e19a7471644317a60f3cbba25ced (patch)
tree441f388dffb45868e3898893aa1b22e2a3a60f59 /arch/arm/mach-omap1/board-fsample.c
parentsmc91x: remove OMAP specific bits (diff)
downloadlinux-dev-414f552ad872e19a7471644317a60f3cbba25ced.tar.xz
linux-dev-414f552ad872e19a7471644317a60f3cbba25ced.zip
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 <ladis@linux-mips.org> Cc: Imre Deak <imre.deak@nokia.com> Cc: Brian Swetland <swetland@google.com> Cc: Kevin Hilman <kjh@hilman.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap1/board-fsample.c')
-rw-r--r--arch/arm/mach-omap1/board-fsample.c50
1 files changed, 37 insertions, 13 deletions
diff --git a/arch/arm/mach-omap1/board-fsample.c b/arch/arm/mach-omap1/board-fsample.c
index 91e7b2f2bc05..7e70c3c08da6 100644
--- a/arch/arm/mach-omap1/board-fsample.c
+++ b/arch/arm/mach-omap1/board-fsample.c
@@ -31,7 +31,6 @@
#include <mach/gpio.h>
#include <plat/mux.h>
#include <plat/fpga.h>
-#include <plat/nand.h>
#include <plat/keypad.h>
#include <plat/common.h>
#include <plat/board.h>
@@ -174,8 +173,40 @@ static struct platform_device nor_device = {
.resource = &nor_resource,
};
-static struct omap_nand_platform_data nand_data = {
- .options = NAND_SAMSUNG_LP_OPTIONS,
+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 FSAMPLE_NAND_RB_GPIO_PIN 62
+
+static int nand_dev_ready(struct mtd_info *mtd)
+{
+ return gpio_get_value(FSAMPLE_NAND_RB_GPIO_PIN);
+}
+
+static const char *part_probes[] = { "cmdlinepart", NULL };
+
+static struct platform_nand_data nand_data = {
+ .chip = {
+ .nr_chips = 1,
+ .chip_offset = 0,
+ .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 = {
@@ -185,7 +216,7 @@ static struct resource nand_resource = {
};
static struct platform_device nand_device = {
- .name = "omapnand",
+ .name = "gen_nand",
.id = 0,
.dev = {
.platform_data = &nand_data,
@@ -243,13 +274,6 @@ static struct platform_device *devices[] __initdata = {
&lcd_device,
};
-#define P2_NAND_RB_GPIO_PIN 62
-
-static int nand_dev_ready(struct omap_nand_platform_data *data)
-{
- return gpio_get_value(P2_NAND_RB_GPIO_PIN);
-}
-
static struct omap_lcd_config fsample_lcd_config __initdata = {
.ctrl_name = "internal",
};
@@ -260,9 +284,9 @@ static struct omap_board_config_kernel fsample_config[] = {
static void __init omap_fsample_init(void)
{
- if (gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0)
+ if (gpio_request(FSAMPLE_NAND_RB_GPIO_PIN, "NAND ready") < 0)
BUG();
- nand_data.dev_ready = nand_dev_ready;
+ gpio_direction_input(FSAMPLE_NAND_RB_GPIO_PIN);
omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
omap_cfg_reg(M8_1610_FLASH_CS2B_WE);