diff options
Diffstat (limited to 'board/nvidia/seaboard/seaboard.c')
| -rw-r--r-- | board/nvidia/seaboard/seaboard.c | 81 | 
1 files changed, 49 insertions, 32 deletions
| diff --git a/board/nvidia/seaboard/seaboard.c b/board/nvidia/seaboard/seaboard.c index bc67d0f94..7f2827b8b 100644 --- a/board/nvidia/seaboard/seaboard.c +++ b/board/nvidia/seaboard/seaboard.c @@ -24,61 +24,78 @@  #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 + * Routine: gpio_config_uart_seaboard   * Description: Force GPIO_PI3 low on Seaboard so UART4 works.   */ -void gpio_config_uart(void) +static void gpio_config_uart_seaboard(void)  { -	int gp = GPIO_PI3; -	struct gpio_ctlr *gpio = (struct gpio_ctlr *)NV_PA_GPIO_BASE; -	struct gpio_ctlr_bank *bank = &gpio->gpio_bank[GPIO_BANK(gp)]; -	u32 val; -  	/* Enable UART via GPIO_PI3 (port 8, bit 3) so serial console works */ -	val = readl(&bank->gpio_config[GPIO_PORT(gp)]); -	val |= 1 << GPIO_BIT(gp); -	writel(val, &bank->gpio_config[GPIO_PORT(gp)]); - -	val = readl(&bank->gpio_out[GPIO_PORT(gp)]); -	val &= ~(1 << GPIO_BIT(gp)); -	writel(val, &bank->gpio_out[GPIO_PORT(gp)]); +	gpio_request(GPIO_PI3, NULL); +	gpio_direction_output(GPIO_PI3, 0); +} -	val = readl(&bank->gpio_dir_out[GPIO_PORT(gp)]); -	val |= 1 << GPIO_BIT(gp); -	writel(val, &bank->gpio_dir_out[GPIO_PORT(gp)]); +void gpio_config_uart(void) +{ +	if (machine_is_ventana()) +		return; +	gpio_config_uart_seaboard();  }  #ifdef CONFIG_TEGRA2_MMC  /* - * Routine: gpio_config_mmc - * Description: Set GPIOs for SDMMC3 SDIO slot. + * 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)  { -	/* Set EN_VDDIO_SD (GPIO I6) */ -	gpio_direction_output(GPIO_PI6, 1); +	/* 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); -	/* Config pin as GPI for Card Detect (GPIO I5) */ -	gpio_direction_input(GPIO_PI5); +	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);  }  /* 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"); -	*cd = 1;			/* Assume card is inserted, or eMMC */ +	debug("board_mmc_init called\n"); + +	/* Enable muxes, etc. for SDMMC controllers */ +	pin_mux_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, -1, -1); -	if (IS_SD(mmc)) { -		/* Seaboard SDMMC3 = SDIO3_CD = GPIO_PI5 */ -		if (gpio_get_value(GPIO_PI5)) -			*cd = 0; -	} +	debug("board_mmc_init: init SD slot\n"); +	/* init dev 1, SD slot, with 4-bit bus */ +	tegra2_mmc_init(1, 4, GPIO_PI6, GPIO_PI5);  	return 0;  } |