1f4ef6668STom Warren /* 2f4ef6668STom Warren * (C) Copyright 2010,2011 3f4ef6668STom Warren * NVIDIA Corporation <www.nvidia.com> 4f4ef6668STom Warren * 5f4ef6668STom Warren * See file CREDITS for list of people who contributed to this 6f4ef6668STom Warren * project. 7f4ef6668STom Warren * 8f4ef6668STom Warren * This program is free software; you can redistribute it and/or 9f4ef6668STom Warren * modify it under the terms of the GNU General Public License as 10f4ef6668STom Warren * published by the Free Software Foundation; either version 2 of 11f4ef6668STom Warren * the License, or (at your option) any later version. 12f4ef6668STom Warren * 13f4ef6668STom Warren * This program is distributed in the hope that it will be useful, 14f4ef6668STom Warren * but WITHOUT ANY WARRANTY; without even the implied warranty of 15f4ef6668STom Warren * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16f4ef6668STom Warren * GNU General Public License for more details. 17f4ef6668STom Warren * 18f4ef6668STom Warren * You should have received a copy of the GNU General Public License 19f4ef6668STom Warren * along with this program; if not, write to the Free Software 20f4ef6668STom Warren * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21f4ef6668STom Warren * MA 02111-1307 USA 22f4ef6668STom Warren */ 23f4ef6668STom Warren 24f4ef6668STom Warren #include <common.h> 25f4ef6668STom Warren #include <asm/io.h> 26f4ef6668STom Warren #include <asm/arch/tegra2.h> 27*ae03661fSStephen Warren #include <asm/arch/pinmux.h> 28ccf7988bSTom Warren #ifdef CONFIG_TEGRA2_MMC 29ccf7988bSTom Warren #include <mmc.h> 30ccf7988bSTom Warren #endif 31*ae03661fSStephen Warren #include "../common/board.h" 32f4ef6668STom Warren 33f4ef6668STom Warren /* 34f4ef6668STom Warren * Routine: gpio_config_uart 35f4ef6668STom Warren * Description: Does nothing on Harmony - no conflict w/SPI. 36f4ef6668STom Warren */ 37f4ef6668STom Warren void gpio_config_uart(void) 38f4ef6668STom Warren { 39f4ef6668STom Warren } 40ccf7988bSTom Warren 41ccf7988bSTom Warren #ifdef CONFIG_TEGRA2_MMC 42ccf7988bSTom Warren /* 43*ae03661fSStephen Warren * Routine: pin_mux_mmc 44*ae03661fSStephen Warren * Description: setup the pin muxes/tristate values for the SDMMC(s) 45*ae03661fSStephen Warren */ 46*ae03661fSStephen Warren static void pin_mux_mmc(void) 47*ae03661fSStephen Warren { 48*ae03661fSStephen Warren /* SDMMC4: config 3, x8 on 2nd set of pins */ 49*ae03661fSStephen Warren pinmux_set_func(PINGRP_ATB, PMUX_FUNC_SDIO4); 50*ae03661fSStephen Warren pinmux_set_func(PINGRP_GMA, PMUX_FUNC_SDIO4); 51*ae03661fSStephen Warren pinmux_set_func(PINGRP_GME, PMUX_FUNC_SDIO4); 52*ae03661fSStephen Warren 53*ae03661fSStephen Warren pinmux_tristate_disable(PINGRP_ATB); 54*ae03661fSStephen Warren pinmux_tristate_disable(PINGRP_GMA); 55*ae03661fSStephen Warren pinmux_tristate_disable(PINGRP_GME); 56*ae03661fSStephen Warren 57*ae03661fSStephen Warren /* For power GPIO PI6 */ 58*ae03661fSStephen Warren pinmux_tristate_disable(PINGRP_ATA); 59*ae03661fSStephen Warren /* For CD GPIO PH2 */ 60*ae03661fSStephen Warren pinmux_tristate_disable(PINGRP_ATD); 61*ae03661fSStephen Warren 62*ae03661fSStephen Warren /* SDMMC2: SDIO2_CLK, SDIO2_CMD, SDIO2_DAT[7:0] */ 63*ae03661fSStephen Warren pinmux_set_func(PINGRP_DTA, PMUX_FUNC_SDIO2); 64*ae03661fSStephen Warren pinmux_set_func(PINGRP_DTD, PMUX_FUNC_SDIO2); 65*ae03661fSStephen Warren 66*ae03661fSStephen Warren pinmux_tristate_disable(PINGRP_DTA); 67*ae03661fSStephen Warren pinmux_tristate_disable(PINGRP_DTD); 68*ae03661fSStephen Warren 69*ae03661fSStephen Warren /* For power GPIO PT3 */ 70*ae03661fSStephen Warren pinmux_tristate_disable(PINGRP_DTB); 71*ae03661fSStephen Warren /* For CD GPIO PI5 */ 72*ae03661fSStephen Warren pinmux_tristate_disable(PINGRP_ATC); 73*ae03661fSStephen Warren } 74*ae03661fSStephen Warren 75*ae03661fSStephen Warren /* 76ccf7988bSTom Warren * Routine: gpio_config_mmc 77ccf7988bSTom Warren * Description: Set GPIOs for SD card 78ccf7988bSTom Warren */ 79ccf7988bSTom Warren void gpio_config_mmc(void) 80ccf7988bSTom Warren { 81ccf7988bSTom Warren /* Not implemented for now */ 82ccf7988bSTom Warren } 83ccf7988bSTom Warren 84ccf7988bSTom Warren /* this is a weak define that we are overriding */ 85*ae03661fSStephen Warren int board_mmc_init(bd_t *bd) 86*ae03661fSStephen Warren { 87*ae03661fSStephen Warren debug("board_mmc_init called\n"); 88*ae03661fSStephen Warren 89*ae03661fSStephen Warren /* Enable muxes, etc. for SDMMC controllers */ 90*ae03661fSStephen Warren pin_mux_mmc(); 91*ae03661fSStephen Warren gpio_config_mmc(); 92*ae03661fSStephen Warren 93*ae03661fSStephen Warren debug("board_mmc_init: init SD slot J26\n"); 94*ae03661fSStephen Warren /* init dev 0, SD slot J26, with 4-bit bus */ 95*ae03661fSStephen Warren /* The board has an 8-bit bus, but 8-bit doesn't work yet */ 96*ae03661fSStephen Warren tegra2_mmc_init(0, 4); 97*ae03661fSStephen Warren 98*ae03661fSStephen Warren debug("board_mmc_init: init SD slot J5\n"); 99*ae03661fSStephen Warren /* init dev 2, SD slot J5, with 4-bit bus */ 100*ae03661fSStephen Warren tegra2_mmc_init(2, 4); 101*ae03661fSStephen Warren 102*ae03661fSStephen Warren return 0; 103*ae03661fSStephen Warren } 104*ae03661fSStephen Warren 105*ae03661fSStephen Warren /* this is a weak define that we are overriding */ 106ccf7988bSTom Warren int board_mmc_getcd(u8 *cd, struct mmc *mmc) 107ccf7988bSTom Warren { 108ccf7988bSTom Warren debug("board_mmc_getcd called\n"); 109ccf7988bSTom Warren /* 110ccf7988bSTom Warren * Hard-code CD presence for now. Need to add GPIO inputs 111ccf7988bSTom Warren * for Harmony 112ccf7988bSTom Warren */ 113ccf7988bSTom Warren *cd = 1; 114ccf7988bSTom Warren return 0; 115ccf7988bSTom Warren } 116ccf7988bSTom Warren #endif 117