| /* |
| * (C) Copyright 2010,2011 |
| * NVIDIA Corporation <www.nvidia.com> |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #include <common.h> |
| #include <asm/io.h> |
| #include <asm/arch/tegra.h> |
| #include <asm/arch/clock.h> |
| #include <asm/arch/funcmux.h> |
| #include <asm/arch/pinmux.h> |
| #include <asm/arch-tegra/mmc.h> |
| #include <asm/gpio.h> |
| #ifdef CONFIG_TEGRA_MMC |
| #include <mmc.h> |
| #endif |
| |
| /* TODO: Remove this code when the SPI switch is working */ |
| #if !defined(CONFIG_SPI_UART_SWITCH) && (CONFIG_MACH_TYPE != MACH_TYPE_VENTANA) |
| /* |
| * Routine: gpio_config_uart_seaboard |
| * Description: Force GPIO_PI3 low on Seaboard so UART4 works. |
| */ |
| static void gpio_config_uart_seaboard(void) |
| { |
| /* Enable UART via GPIO_PI3 (port 8, bit 3) so serial console works */ |
| gpio_request(GPIO_PI3, NULL); |
| gpio_direction_output(GPIO_PI3, 0); |
| } |
| |
| void gpio_early_init_uart(void) |
| { |
| gpio_config_uart_seaboard(); |
| } |
| #endif |
| |
| #ifdef CONFIG_TEGRA_MMC |
| /* |
| * Routine: pin_mux_mmc |
| * Description: setup the pin muxes/tristate values for the SDMMC(s) |
| */ |
| static void pin_mux_mmc(void) |
| { |
| funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT); |
| funcmux_select(PERIPH_ID_SDMMC3, FUNCMUX_SDMMC3_SDB_4BIT); |
| |
| /* 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_init(bd_t *bd) |
| { |
| 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 */ |
| tegra_mmc_init(0, 4, -1, -1); |
| |
| debug("board_mmc_init: init SD slot\n"); |
| /* init dev 1, SD slot, with 4-bit bus */ |
| tegra_mmc_init(1, 4, GPIO_PI6, GPIO_PI5); |
| |
| return 0; |
| } |
| #endif |
| |
| void pin_mux_usb(void) |
| { |
| /* For USB's GPIO PD0. For now, since we have no pinmux in fdt */ |
| pinmux_tristate_disable(PINGRP_SLXK); |
| } |