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