diff options
Diffstat (limited to 'board/nvidia/harmony/harmony.c')
| -rw-r--r-- | board/nvidia/harmony/harmony.c | 57 |
1 files changed, 46 insertions, 11 deletions
diff --git a/board/nvidia/harmony/harmony.c b/board/nvidia/harmony/harmony.c index cbb30d6..3cbe820 100644 --- a/board/nvidia/harmony/harmony.c +++ b/board/nvidia/harmony/harmony.c @@ -24,9 +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 @@ -38,23 +41,55 @@ void gpio_config_uart(void) #ifdef CONFIG_TEGRA2_MMC /* - * Routine: gpio_config_mmc - * Description: Set GPIOs for SD card + * Routine: pin_mux_mmc + * Description: setup the pin muxes/tristate values for the SDMMC(s) */ -void gpio_config_mmc(void) +static void pin_mux_mmc(void) { - /* Not implemented for now */ + /* 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); } /* this is a weak define that we are overriding */ -int board_mmc_getcd(u8 *cd, struct mmc *mmc) +int board_mmc_init(bd_t *bd) { - debug("board_mmc_getcd called\n"); - /* - * Hard-code CD presence for now. Need to add GPIO inputs - * for Harmony - */ - *cd = 1; + debug("board_mmc_init called\n"); + + /* Enable muxes, etc. for SDMMC controllers */ + pin_mux_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, GPIO_PI6, GPIO_PH2); + + debug("board_mmc_init: init SD slot J5\n"); + /* init dev 2, SD slot J5, with 4-bit bus */ + tegra2_mmc_init(2, 4, GPIO_PT3, GPIO_PI5); + return 0; } #endif |