LXR uboot/board/compulab/trimslice/trimslice.c

   1/*
   2 *  (C) Copyright 2010-2012
   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 <i2c.h>
  26#include <asm/io.h>
  27#include <asm/arch/tegra2.h>
  28#include <asm/arch/clock.h>
  29#include <asm/arch/funcmux.h>
  30#include <asm/arch/pinmux.h>
  31#include <asm/arch/mmc.h>
  32#include <asm/gpio.h>
  33#ifdef CONFIG_TEGRA_MMC
  34#include <mmc.h>
  35#endif
  36
  37/*
  38 * Routine: gpio_config_uart
  39 * Description: Does nothing on TrimSlice - no UART-related GPIOs.
  40 */
  41void gpio_config_uart(void)
  42{
  43}
  44
  45void pin_mux_spi(void)
  46{
  47        funcmux_select(PERIPH_ID_SPI1, FUNCMUX_SPI1_GMC_GMD);
  48}
  49
  50/*
  51 * Routine: pin_mux_mmc
  52 * Description: setup the pin muxes/tristate values for the SDMMC(s)
  53 */
  54static void pin_mux_mmc(void)
  55{
  56        funcmux_select(PERIPH_ID_SDMMC1, FUNCMUX_SDMMC1_SDIO1_4BIT);
  57        funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_4_BIT);
  58
  59        /* For CD GPIO PP1 */
  60        pinmux_tristate_disable(PINGRP_DAP3);
  61}
  62
  63/* this is a weak define that we are overriding */
  64int board_mmc_init(bd_t *bd)
  65{
  66        debug("board_mmc_init called\n");
  67
  68        /* Enable muxes, etc. for SDMMC controllers */
  69        pin_mux_mmc();
  70
  71        /* init dev 0 (SDMMC4), (micro-SD slot) with 4-bit bus */
  72        tegra2_mmc_init(0, 4, -1, GPIO_PP1);
  73
  74        /* init dev 3 (SDMMC1), (SD slot) with 4-bit bus */
  75        tegra2_mmc_init(3, 4, -1, -1);
  76
  77        return 0;
  78}
  79