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  * SPDX-License-Identifier:	GPL-2.0+
8  */
9 
10 #include <common.h>
11 #include <ns16550.h>
12 #include <asm/io.h>
13 #include <asm/gpio.h>
14 #include <asm/arch/clock.h>
15 #include <asm/arch/funcmux.h>
16 #include <asm/arch/pinmux.h>
17 #include <asm/arch/tegra.h>
18 #include <asm/arch-tegra/board.h>
19 #include <asm/arch-tegra/clk_rst.h>
20 #include <asm/arch-tegra/sys_proto.h>
21 #include <asm/arch-tegra/uart.h>
22 
23 #ifdef CONFIG_BOARD_EARLY_INIT_F
24 void gpio_early_init(void)
25 {
26 	gpio_request(GPIO_PI4, NULL);
27 	gpio_direction_output(GPIO_PI4, 1);
28 }
29 #endif
30 
31 #ifdef CONFIG_TEGRA_MMC
32 /*
33  * Routine: pin_mux_mmc
34  * Description: setup the pin muxes/tristate values for the SDMMC(s)
35  */
36 void pin_mux_mmc(void)
37 {
38 	funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT);
39 	/* for write-protect GPIO PI6 */
40 	pinmux_tristate_disable(PINGRP_ATA);
41 	/* for CD GPIO PH2 */
42 	pinmux_tristate_disable(PINGRP_ATD);
43 }
44 #endif
45