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davinci: MMC/SD support for Omapl138-Hawkboard 

This patch adds MMC/SD support for the Hawkboard-L138 system

Signed-off-by: Victor Rodriguez <vm.rod25@gmail.com>
Tested-by: Rene Gonzalez <renegs.2378@gmail.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
This commit is contained in:
Victor Rodriguez 2010-12-27 16:43:11 -06:00 committed by Kevin Hilman
parent fe358d6a04
commit ef782d8d4e
1 changed files with 72 additions and 0 deletions
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72
arch/arm/mach-davinci/board-omapl138-hawk.c
View File

@ -22,6 +22,8 @@
#include <mach/mux.h>
#define HAWKBOARD_PHY_ID "0:07"
#define DA850_HAWK_MMCSD_CD_PIN GPIO_TO_PIN(3, 12)
#define DA850_HAWK_MMCSD_WP_PIN GPIO_TO_PIN(3, 13)
static short omapl138_hawk_mii_pins[] __initdata = {
DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
@ -110,6 +112,74 @@ static struct edma_rsv_info *da850_edma_rsv[2] = {
&da850_edma_cc1_rsv,
};
static const short hawk_mmcsd0_pins[] = {
DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
DA850_GPIO3_12, DA850_GPIO3_13,
-1
};
static int da850_hawk_mmc_get_ro(int index)
{
return gpio_get_value(DA850_HAWK_MMCSD_WP_PIN);
}
static int da850_hawk_mmc_get_cd(int index)
{
return !gpio_get_value(DA850_HAWK_MMCSD_CD_PIN);
}
static struct davinci_mmc_config da850_mmc_config = {
.get_ro = da850_hawk_mmc_get_ro,
.get_cd = da850_hawk_mmc_get_cd,
.wires = 4,
.max_freq = 50000000,
.caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
.version = MMC_CTLR_VERSION_2,
};
static __init void omapl138_hawk_mmc_init(void)
{
int ret;
ret = davinci_cfg_reg_list(hawk_mmcsd0_pins);
if (ret) {
pr_warning("%s: MMC/SD0 mux setup failed: %d\n",
__func__, ret);
return;
}
ret = gpio_request_one(DA850_HAWK_MMCSD_CD_PIN,
GPIOF_DIR_IN, "MMC CD");
if (ret < 0) {
pr_warning("%s: can not open GPIO %d\n",
__func__, DA850_HAWK_MMCSD_CD_PIN);
return;
}
ret = gpio_request_one(DA850_HAWK_MMCSD_WP_PIN,
GPIOF_DIR_IN, "MMC WP");
if (ret < 0) {
pr_warning("%s: can not open GPIO %d\n",
__func__, DA850_HAWK_MMCSD_WP_PIN);
goto mmc_setup_wp_fail;
}
ret = da8xx_register_mmcsd0(&da850_mmc_config);
if (ret) {
pr_warning("%s: MMC/SD0 registration failed: %d\n",
__func__, ret);
goto mmc_setup_mmcsd_fail;
}
return;
mmc_setup_mmcsd_fail:
gpio_free(DA850_HAWK_MMCSD_WP_PIN);
mmc_setup_wp_fail:
gpio_free(DA850_HAWK_MMCSD_CD_PIN);
}
static struct davinci_uart_config omapl138_hawk_uart_config __initdata = {
.enabled_uarts = 0x7,
};
@ -127,6 +197,8 @@ static __init void omapl138_hawk_init(void)
pr_warning("%s: EDMA registration failed: %d\n",
__func__, ret);
omapl138_hawk_mmc_init();
ret = da8xx_register_watchdog();
if (ret)
pr_warning("omapl138_hawk_init: "