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-rw-r--r--board/nvidia/harmony/harmony.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/board/nvidia/harmony/harmony.c b/board/nvidia/harmony/harmony.c
index cbb30d6..f2c3867 100644
--- a/board/nvidia/harmony/harmony.c
+++ b/board/nvidia/harmony/harmony.c
@@ -24,9 +24,11 @@
#include <common.h>
#include <asm/io.h>
#include <asm/arch/tegra2.h>
+#include <asm/arch/pinmux.h>
#ifdef CONFIG_TEGRA2_MMC
#include <mmc.h>
#endif
+#include "../common/board.h"
/*
* Routine: gpio_config_uart
@@ -38,6 +40,39 @@ void gpio_config_uart(void)
#ifdef CONFIG_TEGRA2_MMC
/*
+ * Routine: pin_mux_mmc
+ * Description: setup the pin muxes/tristate values for the SDMMC(s)
+ */
+static void pin_mux_mmc(void)
+{
+ /* SDMMC4: config 3, x8 on 2nd set of pins */
+ pinmux_set_func(PINGRP_ATB, PMUX_FUNC_SDIO4);
+ pinmux_set_func(PINGRP_GMA, PMUX_FUNC_SDIO4);
+ pinmux_set_func(PINGRP_GME, PMUX_FUNC_SDIO4);
+
+ pinmux_tristate_disable(PINGRP_ATB);
+ pinmux_tristate_disable(PINGRP_GMA);
+ pinmux_tristate_disable(PINGRP_GME);
+
+ /* For power GPIO PI6 */
+ pinmux_tristate_disable(PINGRP_ATA);
+ /* For CD GPIO PH2 */
+ pinmux_tristate_disable(PINGRP_ATD);
+
+ /* SDMMC2: SDIO2_CLK, SDIO2_CMD, SDIO2_DAT[7:0] */
+ pinmux_set_func(PINGRP_DTA, PMUX_FUNC_SDIO2);
+ pinmux_set_func(PINGRP_DTD, PMUX_FUNC_SDIO2);
+
+ pinmux_tristate_disable(PINGRP_DTA);
+ pinmux_tristate_disable(PINGRP_DTD);
+
+ /* For power GPIO PT3 */
+ pinmux_tristate_disable(PINGRP_DTB);
+ /* For CD GPIO PI5 */
+ pinmux_tristate_disable(PINGRP_ATC);
+}
+
+/*
* Routine: gpio_config_mmc
* Description: Set GPIOs for SD card
*/
@@ -47,6 +82,27 @@ void gpio_config_mmc(void)
}
/* this is a weak define that we are overriding */
+int board_mmc_init(bd_t *bd)
+{
+ debug("board_mmc_init called\n");
+
+ /* Enable muxes, etc. for SDMMC controllers */
+ pin_mux_mmc();
+ gpio_config_mmc();
+
+ debug("board_mmc_init: init SD slot J26\n");
+ /* init dev 0, SD slot J26, with 4-bit bus */
+ /* The board has an 8-bit bus, but 8-bit doesn't work yet */
+ tegra2_mmc_init(0, 4);
+
+ debug("board_mmc_init: init SD slot J5\n");
+ /* init dev 2, SD slot J5, with 4-bit bus */
+ tegra2_mmc_init(2, 4);
+
+ return 0;
+}
+
+/* this is a weak define that we are overriding */
int board_mmc_getcd(u8 *cd, struct mmc *mmc)
{
debug("board_mmc_getcd called\n");