1 /* 2 * (C) Copyright 2010,2011 3 * NVIDIA Corporation <www.nvidia.com> 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24 #include <common.h> 25 #include <asm/io.h> 26 #include <asm/arch/tegra20.h> 27 #include <asm/arch/clock.h> 28 #include <asm/arch/funcmux.h> 29 #include <asm/arch/pinmux.h> 30 #include <asm/arch/mmc.h> 31 #include <asm/gpio.h> 32 #ifdef CONFIG_TEGRA_MMC 33 #include <mmc.h> 34 #endif 35 36 /* 37 * Routine: gpio_config_uart 38 * Description: Does nothing on Harmony - no conflict w/SPI. 39 */ 40 void gpio_config_uart(void) 41 { 42 } 43 44 #ifdef CONFIG_TEGRA_MMC 45 /* 46 * Routine: pin_mux_mmc 47 * Description: setup the pin muxes/tristate values for the SDMMC(s) 48 */ 49 static void pin_mux_mmc(void) 50 { 51 funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT); 52 funcmux_select(PERIPH_ID_SDMMC2, FUNCMUX_SDMMC2_DTA_DTD_8BIT); 53 54 /* For power GPIO PI6 */ 55 pinmux_tristate_disable(PINGRP_ATA); 56 /* For CD GPIO PH2 */ 57 pinmux_tristate_disable(PINGRP_ATD); 58 59 /* For power GPIO PT3 */ 60 pinmux_tristate_disable(PINGRP_DTB); 61 /* For CD GPIO PI5 */ 62 pinmux_tristate_disable(PINGRP_ATC); 63 } 64 65 /* this is a weak define that we are overriding */ 66 int board_mmc_init(bd_t *bd) 67 { 68 debug("board_mmc_init called\n"); 69 70 /* Enable muxes, etc. for SDMMC controllers */ 71 pin_mux_mmc(); 72 73 debug("board_mmc_init: init SD slot J26\n"); 74 /* init dev 0, SD slot J26, with 4-bit bus */ 75 /* The board has an 8-bit bus, but 8-bit doesn't work yet */ 76 tegra20_mmc_init(0, 4, GPIO_PI6, GPIO_PH2); 77 78 debug("board_mmc_init: init SD slot J5\n"); 79 /* init dev 2, SD slot J5, with 4-bit bus */ 80 tegra20_mmc_init(2, 4, GPIO_PT3, GPIO_PI5); 81 82 return 0; 83 } 84 #endif 85