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/tegra2.h> 27 #include <asm/arch/pinmux.h> 28 #include <asm/gpio.h> 29 #ifdef CONFIG_TEGRA2_MMC 30 #include <mmc.h> 31 #endif 32 #include "../common/board.h" 33 34 /* 35 * Routine: gpio_config_uart 36 * Description: Does nothing on Harmony - no conflict w/SPI. 37 */ 38 void gpio_config_uart(void) 39 { 40 } 41 42 #ifdef CONFIG_TEGRA2_MMC 43 /* 44 * Routine: pin_mux_mmc 45 * Description: setup the pin muxes/tristate values for the SDMMC(s) 46 */ 47 static void pin_mux_mmc(void) 48 { 49 /* SDMMC4: config 3, x8 on 2nd set of pins */ 50 pinmux_set_func(PINGRP_ATB, PMUX_FUNC_SDIO4); 51 pinmux_set_func(PINGRP_GMA, PMUX_FUNC_SDIO4); 52 pinmux_set_func(PINGRP_GME, PMUX_FUNC_SDIO4); 53 54 pinmux_tristate_disable(PINGRP_ATB); 55 pinmux_tristate_disable(PINGRP_GMA); 56 pinmux_tristate_disable(PINGRP_GME); 57 58 /* For power GPIO PI6 */ 59 pinmux_tristate_disable(PINGRP_ATA); 60 /* For CD GPIO PH2 */ 61 pinmux_tristate_disable(PINGRP_ATD); 62 63 /* SDMMC2: SDIO2_CLK, SDIO2_CMD, SDIO2_DAT[7:0] */ 64 pinmux_set_func(PINGRP_DTA, PMUX_FUNC_SDIO2); 65 pinmux_set_func(PINGRP_DTD, PMUX_FUNC_SDIO2); 66 67 pinmux_tristate_disable(PINGRP_DTA); 68 pinmux_tristate_disable(PINGRP_DTD); 69 70 /* For power GPIO PT3 */ 71 pinmux_tristate_disable(PINGRP_DTB); 72 /* For CD GPIO PI5 */ 73 pinmux_tristate_disable(PINGRP_ATC); 74 } 75 76 /* this is a weak define that we are overriding */ 77 int board_mmc_init(bd_t *bd) 78 { 79 debug("board_mmc_init called\n"); 80 81 /* Enable muxes, etc. for SDMMC controllers */ 82 pin_mux_mmc(); 83 84 debug("board_mmc_init: init SD slot J26\n"); 85 /* init dev 0, SD slot J26, with 4-bit bus */ 86 /* The board has an 8-bit bus, but 8-bit doesn't work yet */ 87 tegra2_mmc_init(0, 4, GPIO_PI6, GPIO_PH2); 88 89 debug("board_mmc_init: init SD slot J5\n"); 90 /* init dev 2, SD slot J5, with 4-bit bus */ 91 tegra2_mmc_init(2, 4, GPIO_PT3, GPIO_PI5); 92 93 return 0; 94 } 95 #endif 96