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Stephen Warren39e37112012-05-16 13:54:07 +00001/*
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>
Stephen Warren39e37112012-05-16 13:54:07 +000025#include <asm/io.h>
Tom Warren150c2492012-09-19 15:50:56 -070026#include <asm/arch/tegra.h>
Stephen Warren39e37112012-05-16 13:54:07 +000027#include <asm/arch/clock.h>
28#include <asm/arch/funcmux.h>
29#include <asm/arch/pinmux.h>
Tom Warren150c2492012-09-19 15:50:56 -070030#include <asm/arch-tegra/mmc.h>
Stephen Warren39e37112012-05-16 13:54:07 +000031#include <asm/gpio.h>
Tom Warren150c2492012-09-19 15:50:56 -070032#include <i2c.h>
Tom Warren1e2d7852012-06-01 08:22:14 +000033#ifdef CONFIG_TEGRA_MMC
Stephen Warren39e37112012-05-16 13:54:07 +000034#include <mmc.h>
35#endif
36
Stephen Warren7155dc92012-11-01 12:14:37 +000037void pin_mux_usb(void)
38{
39 /*
40 * USB1 internal/external mux GPIO, which masquerades as a VBUS GPIO
41 * in the current device tree.
42 */
43 pinmux_tristate_disable(PINGRP_UAC);
44}
Stephen Warren39e37112012-05-16 13:54:07 +000045
Stephen Warren2db7b952012-06-12 08:33:41 +000046void pin_mux_spi(void)
47{
48 funcmux_select(PERIPH_ID_SPI1, FUNCMUX_SPI1_GMC_GMD);
49}
50
Stephen Warren39e37112012-05-16 13:54:07 +000051/*
52 * Routine: pin_mux_mmc
53 * Description: setup the pin muxes/tristate values for the SDMMC(s)
54 */
55static void pin_mux_mmc(void)
56{
57 funcmux_select(PERIPH_ID_SDMMC1, FUNCMUX_SDMMC1_SDIO1_4BIT);
58 funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_4_BIT);
59
60 /* For CD GPIO PP1 */
61 pinmux_tristate_disable(PINGRP_DAP3);
62}
63
64/* this is a weak define that we are overriding */
65int board_mmc_init(bd_t *bd)
66{
67 debug("board_mmc_init called\n");
68
69 /* Enable muxes, etc. for SDMMC controllers */
70 pin_mux_mmc();
71
72 /* init dev 0 (SDMMC4), (micro-SD slot) with 4-bit bus */
Tom Warren29f3e3f2012-09-04 17:00:24 -070073 tegra_mmc_init(0, 4, -1, GPIO_PP1);
Stephen Warren39e37112012-05-16 13:54:07 +000074
75 /* init dev 3 (SDMMC1), (SD slot) with 4-bit bus */
Tom Warren29f3e3f2012-09-04 17:00:24 -070076 tegra_mmc_init(3, 4, -1, -1);
Stephen Warren39e37112012-05-16 13:54:07 +000077
78 return 0;
79}