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 (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 } 67