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authorVictor Rodriguez <vm.rod25@gmail.com>2010-12-27 16:43:11 -0600
committerKevin Hilman <khilman@ti.com>2011-02-28 14:53:28 -0800
commitef782d8d4e80b25a56d8cb93d648dd125e6ea95e (patch)
treeff4b9ba060703e2b49f5b1744728ec6fee78f1d1 /arch/arm/mach-davinci
parentfe358d6a049dcd7cd52b0eb6ae5c8bddf223d41b (diff)
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>
Diffstat (limited to 'arch/arm/mach-davinci')
-rw-r--r--arch/arm/mach-davinci/board-omapl138-hawk.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c
index cefff9b86f7..eeb1cad0250 100644
--- a/arch/arm/mach-davinci/board-omapl138-hawk.c
+++ b/arch/arm/mach-davinci/board-omapl138-hawk.c
@@ -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: "