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>
diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c
index eeafe6e..fa7cece 100644
--- a/arch/arm/mach-omap1/board-h2.c
+++ b/arch/arm/mach-omap1/board-h2.c
@@ -41,7 +41,6 @@
#include <plat/mux.h>
#include <plat/dma.h>
#include <plat/tc.h>
-#include <plat/nand.h>
#include <plat/irda.h>
#include <plat/usb.h>
#include <plat/keypad.h>
@@ -180,11 +179,43 @@
},
};
-/* dip switches control NAND chip access: 8 bit, 16 bit, or neither */
-static struct omap_nand_platform_data h2_nand_data = {
- .options = NAND_SAMSUNG_LP_OPTIONS,
- .parts = h2_nand_partitions,
- .nr_parts = ARRAY_SIZE(h2_nand_partitions),
+static void h2_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 H2_NAND_RB_GPIO_PIN 62
+
+static int h2_nand_dev_ready(struct mtd_info *mtd)
+{
+ return gpio_get_value(H2_NAND_RB_GPIO_PIN);
+}
+
+static const char *h2_part_probes[] = { "cmdlinepart", NULL };
+
+struct platform_nand_data h2_nand_platdata = {
+ .chip = {
+ .nr_chips = 1,
+ .chip_offset = 0,
+ .nr_partitions = ARRAY_SIZE(h2_nand_partitions),
+ .partitions = h2_nand_partitions,
+ .options = NAND_SAMSUNG_LP_OPTIONS,
+ .part_probe_types = h2_part_probes,
+ },
+ .ctrl = {
+ .cmd_ctrl = h2_nand_cmd_ctl,
+ .dev_ready = h2_nand_dev_ready,
+
+ },
};
static struct resource h2_nand_resource = {
@@ -192,10 +223,10 @@
};
static struct platform_device h2_nand_device = {
- .name = "omapnand",
+ .name = "gen_nand",
.id = 0,
.dev = {
- .platform_data = &h2_nand_data,
+ .platform_data = &h2_nand_platdata,
},
.num_resources = 1,
.resource = &h2_nand_resource,
@@ -378,8 +409,6 @@
{ OMAP_TAG_LCD, &h2_lcd_config },
};
-#define H2_NAND_RB_GPIO_PIN 62
-
static void __init h2_init(void)
{
/* Here we assume the NOR boot config: NOR on CS3 (possibly swapped