1 /*
2  *  (C) Copyright 2010,2011
3  *  NVIDIA Corporation <www.nvidia.com>
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #include <common.h>
9 #include <asm/io.h>
10 #include <asm/arch/tegra.h>
11 #include <asm/arch/clock.h>
12 #include <asm/arch/funcmux.h>
13 #include <asm/arch/gpio.h>
14 #include <asm/arch/pinmux.h>
15 #include <asm/gpio.h>
16 
17 /* TODO: Remove this code when the SPI switch is working */
18 #if (CONFIG_MACH_TYPE != MACH_TYPE_VENTANA)
19 void gpio_early_init_uart(void)
20 {
21 	/* Enable UART via GPIO_PI3 (port 8, bit 3) so serial console works */
22 #ifndef CONFIG_SPL_BUILD
23 	gpio_request(GPIO_PI3, NULL);
24 #endif
25 	gpio_direction_output(GPIO_PI3, 0);
26 }
27 #endif
28 
29 #ifdef CONFIG_TEGRA_MMC
30 /*
31  * Routine: pin_mux_mmc
32  * Description: setup the pin muxes/tristate values for the SDMMC(s)
33  */
34 void pin_mux_mmc(void)
35 {
36 	funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT);
37 	funcmux_select(PERIPH_ID_SDMMC3, FUNCMUX_SDMMC3_SDB_4BIT);
38 
39 	/* For power GPIO PI6 */
40 	pinmux_tristate_disable(PINGRP_ATA);
41 	/* For CD GPIO PI5 */
42 	pinmux_tristate_disable(PINGRP_ATC);
43 }
44 #endif
45 
46 void pin_mux_usb(void)
47 {
48 	/* For USB's GPIO PD0. For now, since we have no pinmux in fdt */
49 	pinmux_tristate_disable(PINGRP_SLXK);
50 }
51