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omap1: Use gen_nand

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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>
This commit is contained in:
Ladislav Michl
2009-12-11 16:16:33 -08:00
committed by Tony Lindgren
parent e2b18e3018
commit 414f552ad8
4 changed files with 152 additions and 51 deletions
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48
arch/arm/mach-omap1/board-perseus2.c
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@@ -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>
@@ -141,8 +140,40 @@ 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 P2_NAND_RB_GPIO_PIN 62
static int nand_dev_ready(struct mtd_info *mtd)
{
return gpio_get_value(P2_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 = {
@@ -152,7 +183,7 @@ static struct resource nand_resource = {
};
static struct platform_device nand_device = {
.name = "omapnand",
.name = "gen_nand",
.id = 0,
.dev = {
.platform_data = &nand_data,
@@ -211,13 +242,6 @@ 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 perseus2_lcd_config __initdata = {
.ctrl_name = "internal",
};
@@ -230,7 +254,7 @@ static void __init omap_perseus2_init(void)
{
if (gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0)
BUG();
nand_data.dev_ready = nand_dev_ready;
gpio_direction_input(P2_NAND_RB_GPIO_PIN);
omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
omap_cfg_reg(M8_1610_FLASH_CS2B_WE);