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/clock.h>
31 #include <asm/arch/funcmux.h>
32 #include <asm/arch/pinmux.h>
33 #include <asm/arch/tegra.h>
34 #include <asm/arch-tegra/board.h>
35 #include <asm/arch-tegra/clk_rst.h>
36 #include <asm/arch-tegra/sys_proto.h>
37 #include <asm/arch-tegra/uart.h>
38 
39 #ifdef CONFIG_BOARD_EARLY_INIT_F
40 void gpio_early_init(void)
41 {
42 	gpio_request(GPIO_PI4, NULL);
43 	gpio_direction_output(GPIO_PI4, 1);
44 }
45 #endif
46 
47 #ifdef CONFIG_TEGRA_MMC
48 /*
49  * Routine: pin_mux_mmc
50  * Description: setup the pin muxes/tristate values for the SDMMC(s)
51  */
52 void pin_mux_mmc(void)
53 {
54 	funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT);
55 	/* for write-protect GPIO PI6 */
56 	pinmux_tristate_disable(PINGRP_ATA);
57 	/* for CD GPIO PH2 */
58 	pinmux_tristate_disable(PINGRP_ATD);
59 }
60 #endif
61