board/nvidia/seaboard/seaboard.c

   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/tegra.h>
  27 #include <asm/arch/clock.h>
  28 #include <asm/arch/funcmux.h>
  29 #include <asm/arch/gpio.h>
  30 #include <asm/arch/pinmux.h>
  31 #include <asm/gpio.h>
  32
  33 /* TODO: Remove this code when the SPI switch is working */
  34 #if !defined(CONFIG_SPI_UART_SWITCH) && (CONFIG_MACH_TYPE != MACH_TYPE_VENTANA)
  35 void gpio_early_init_uart(void)
  36 {
  37         /* Enable UART via GPIO_PI3 (port 8, bit 3) so serial console works */
  38 #ifndef CONFIG_SPL_BUILD
  39         gpio_request(GPIO_PI3, NULL);
  40 #endif
  41         gpio_direction_output(GPIO_PI3, 0);
  42 }
  43 #endif
  44
  45 #ifdef CONFIG_TEGRA_MMC
  46 /*
  47  * Routine: pin_mux_mmc
  48  * Description: setup the pin muxes/tristate values for the SDMMC(s)
  49  */
  50 void pin_mux_mmc(void)
  51 {
  52         funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT);
  53         funcmux_select(PERIPH_ID_SDMMC3, FUNCMUX_SDMMC3_SDB_4BIT);
  54
  55         /* For power GPIO PI6 */
  56         pinmux_tristate_disable(PINGRP_ATA);
  57         /* For CD GPIO PI5 */
  58         pinmux_tristate_disable(PINGRP_ATC);
  59 }
  60 #endif
  61
  62 void pin_mux_usb(void)
  63 {
  64         /* For USB's GPIO PD0. For now, since we have no pinmux in fdt */
  65         pinmux_tristate_disable(PINGRP_SLXK);
  66 }