diff mbox

[v11,4/6] davinci: MMC/SD support for Omapl138-Hawkboard

Message ID 1293489793-23312-5-git-send-email-vm.rod25@gmail.com (mailing list archive)
State Accepted
Headers show

Commit Message

Victor Rodriguez Dec. 27, 2010, 10:43 p.m. UTC
None
diff mbox

Patch

diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c
index cefff9b..eeb1cad 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: "