tegra2: Enable MMC for Seaboard

[karo-tx-uboot.git] / board / nvidia / seaboard / seaboard.c

diff --git a/board/nvidia/seaboard/seaboard.c b/board/nvidia/seaboard/seaboard.c
index 4b9a8f33e89daef1c9458be0b176e01211ab225e..bc67d0f94c0be159786f231117decba110b7bea7 100644 (file)
--- a/board/nvidia/seaboard/seaboard.c
+++ b/board/nvidia/seaboard/seaboard.c
@@ -24,7 +24,10 @@
 #include <common.h>
 #include <asm/io.h>
 #include <asm/arch/tegra2.h>
-#include <asm/arch/gpio.h>
+#include <asm/gpio.h>
+#ifdef CONFIG_TEGRA2_MMC
+#include <mmc.h>
+#endif
 
 /*
  * Routine: gpio_config_uart
@@ -50,3 +53,33 @@ void gpio_config_uart(void)
        val |= 1 << GPIO_BIT(gp);
        writel(val, &bank->gpio_dir_out[GPIO_PORT(gp)]);
 }
+
+#ifdef CONFIG_TEGRA2_MMC
+/*
+ * Routine: gpio_config_mmc
+ * Description: Set GPIOs for SDMMC3 SDIO slot.
+ */
+void gpio_config_mmc(void)
+{
+       /* Set EN_VDDIO_SD (GPIO I6) */
+       gpio_direction_output(GPIO_PI6, 1);
+
+       /* Config pin as GPI for Card Detect (GPIO I5) */
+       gpio_direction_input(GPIO_PI5);
+}
+
+/* this is a weak define that we are overriding */
+int board_mmc_getcd(u8 *cd, struct mmc *mmc)
+{
+       debug("board_mmc_getcd called\n");
+       *cd = 1;                        /* Assume card is inserted, or eMMC */
+
+       if (IS_SD(mmc)) {
+               /* Seaboard SDMMC3 = SDIO3_CD = GPIO_PI5 */
+               if (gpio_get_value(GPIO_PI5))
+                       *cd = 0;
+       }
+
+       return 0;
+}
+#endif