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 bc67d0f94c..7f2827b8be 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; } |