diff options
Diffstat (limited to 'board/nvidia/seaboard/seaboard.c')
| -rw-r--r-- | board/nvidia/seaboard/seaboard.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/board/nvidia/seaboard/seaboard.c b/board/nvidia/seaboard/seaboard.c index bc67d0f..22a0e69 100644 --- a/board/nvidia/seaboard/seaboard.c +++ b/board/nvidia/seaboard/seaboard.c @@ -24,10 +24,12 @@ #include <common.h> #include <asm/io.h> #include <asm/arch/tegra2.h> +#include <asm/arch/pinmux.h> #include <asm/gpio.h> #ifdef CONFIG_TEGRA2_MMC #include <mmc.h> #endif +#include "../common/board.h" /* * Routine: gpio_config_uart @@ -56,6 +58,36 @@ 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); + + /* SDMMC3: SDIO3_CLK, SDIO3_CMD, SDIO3_DAT[3:0] */ + pinmux_set_func(PINGRP_SDB, PMUX_FUNC_SDIO3); + pinmux_set_func(PINGRP_SDC, PMUX_FUNC_SDIO3); + pinmux_set_func(PINGRP_SDD, PMUX_FUNC_SDIO3); + + pinmux_tristate_disable(PINGRP_SDC); + pinmux_tristate_disable(PINGRP_SDD); + pinmux_tristate_disable(PINGRP_SDB); + + /* For power GPIO PI6 */ + pinmux_tristate_disable(PINGRP_ATA); + /* For CD GPIO PI5 */ + pinmux_tristate_disable(PINGRP_ATC); +} + +/* * Routine: gpio_config_mmc * Description: Set GPIOs for SDMMC3 SDIO slot. */ @@ -69,6 +101,27 @@ 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 eMMC\n"); + /* init dev 0, eMMC chip, 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\n"); + /* init dev 1, SD slot, with 4-bit bus */ + tegra2_mmc_init(1, 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"); |