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e712e54518
Use the new funcmux_select() feature to set up the MMC pin mux. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/*
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* (C) Copyright 2010,2011
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* NVIDIA Corporation <www.nvidia.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/tegra2.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/funcmux.h>
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#include <asm/arch/pinmux.h>
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#include <asm/arch/mmc.h>
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#include <asm/gpio.h>
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#ifdef CONFIG_TEGRA2_MMC
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#include <mmc.h>
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#endif
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/*
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* Routine: gpio_config_uart
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* Description: Does nothing on Harmony - no conflict w/SPI.
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*/
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void gpio_config_uart(void)
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{
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}
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#ifdef CONFIG_TEGRA2_MMC
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/*
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* Routine: pin_mux_mmc
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* Description: setup the pin muxes/tristate values for the SDMMC(s)
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*/
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static void pin_mux_mmc(void)
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{
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funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT);
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funcmux_select(PERIPH_ID_SDMMC2, FUNCMUX_SDMMC2_DTA_DTD_8BIT);
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/* For power GPIO PI6 */
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pinmux_tristate_disable(PINGRP_ATA);
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/* For CD GPIO PH2 */
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pinmux_tristate_disable(PINGRP_ATD);
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/* For power GPIO PT3 */
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pinmux_tristate_disable(PINGRP_DTB);
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/* For CD GPIO PI5 */
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pinmux_tristate_disable(PINGRP_ATC);
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}
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/* this is a weak define that we are overriding */
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int board_mmc_init(bd_t *bd)
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{
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debug("board_mmc_init called\n");
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/* Enable muxes, etc. for SDMMC controllers */
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pin_mux_mmc();
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debug("board_mmc_init: init SD slot J26\n");
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/* init dev 0, SD slot J26, with 4-bit bus */
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/* The board has an 8-bit bus, but 8-bit doesn't work yet */
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tegra2_mmc_init(0, 4, GPIO_PI6, GPIO_PH2);
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debug("board_mmc_init: init SD slot J5\n");
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/* init dev 2, SD slot J5, with 4-bit bus */
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tegra2_mmc_init(2, 4, GPIO_PT3, GPIO_PI5);
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return 0;
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}
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#endif
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