LXR uboot/board/avionic-design/common/tamonten.c

   1/*
   2 *  (C) Copyright 2010,2011
   3 *  NVIDIA Corporation <www.nvidia.com>
   4 *  (C) Copyright 2011-2012
   5 *  Avionic Design GmbH <www.avionic-design.de>
   6 *
   7 * See file CREDITS for list of people who contributed to this
   8 * project.
   9 *
  10 * This program is free software; you can redistribute it and/or
  11 * modify it under the terms of the GNU General Public License as
  12 * published by the Free Software Foundation; either version 2 of
  13 * the License, or (at your option) any later version.
  14 *
  15 * This program is distributed in the hope that it will be useful,
  16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 * GNU General Public License for more details.
  19 *
  20 * You should have received a copy of the GNU General Public License
  21 * along with this program; if not, write to the Free Software
  22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23 * MA 02111-1307 USA
  24 */
  25
  26#include <common.h>
  27#include <ns16550.h>
  28#include <asm/io.h>
  29#include <asm/gpio.h>
  30#include <asm/arch/board.h>
  31#include <asm/arch/tegra2.h>
  32#include <asm/arch/sys_proto.h>
  33#include <asm/arch/clk_rst.h>
  34#include <asm/arch/clock.h>
  35#include <asm/arch/funcmux.h>
  36#include <asm/arch/pinmux.h>
  37#include <asm/arch/uart.h>
  38#include <asm/arch/mmc.h>
  39
  40#ifdef CONFIG_TEGRA_MMC
  41#include <mmc.h>
  42#endif
  43
  44/*
  45 * Routine: gpio_config_uart
  46 * Description: Does nothing on Tamonten - no conflict w/SPI.
  47 */
  48void gpio_config_uart(void)
  49{
  50}
  51
  52#ifdef CONFIG_BOARD_EARLY_INIT_F
  53void gpio_early_init(void)
  54{
  55        gpio_request(GPIO_PI4, NULL);
  56        gpio_direction_output(GPIO_PI4, 1);
  57}
  58#endif
  59
  60#ifdef CONFIG_TEGRA_MMC
  61/*
  62 * Routine: pin_mux_mmc
  63 * Description: setup the pin muxes/tristate values for the SDMMC(s)
  64 */
  65static void pin_mux_mmc(void)
  66{
  67        funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT);
  68        /* for write-protect GPIO PI6 */
  69        pinmux_tristate_disable(PINGRP_ATA);
  70        /* for CD GPIO PH2 */
  71        pinmux_tristate_disable(PINGRP_ATD);
  72}
  73
  74/* this is a weak define that we are overriding */
  75int board_mmc_init(bd_t *bd)
  76{
  77        /* Enable muxes, etc. for SDMMC controllers */
  78        pin_mux_mmc();
  79
  80        /* init dev 0, SD slot, with 4-bit bus */
  81        tegra2_mmc_init(0, 4, GPIO_PI6, GPIO_PH2);
  82
  83        return 0;
  84}
  85#endif
  86