2 * (C) Copyright 2010-2012
3 * NVIDIA Corporation <www.nvidia.com>
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
26 #include <asm/arch/tegra.h>
27 #include <asm/arch/clock.h>
28 #include <asm/arch/funcmux.h>
29 #include <asm/arch/pinmux.h>
33 #ifdef CONFIG_TEGRA_MMC
35 * Routine: pin_mux_mmc
36 * Description: setup the pin muxes/tristate values for the SDMMC(s)
38 void pin_mux_mmc(void)
43 /* Turn on MAX8907B LDO12 to 2.8V for J40 power */
44 ret = i2c_set_bus_num(0);
46 printf("i2c_set_bus_num failed: %d\n", ret);
48 ret = i2c_write(0x3c, 0x46, 1, &val, 1);
50 printf("i2c_write 0 0x3c 0x46 failed: %d\n", ret);
52 ret = i2c_write(0x3c, 0x45, 1, &val, 1);
54 printf("i2c_write 0 0x3c 0x45 failed: %d\n", ret);
56 ret = i2c_write(0x3c, 0x44, 1, &val, 1);
58 printf("i2c_write 0 0x3c 0x44 failed: %d\n", ret);
60 funcmux_select(PERIPH_ID_SDMMC3, FUNCMUX_SDMMC3_SDB_SLXA_8BIT);
61 funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATC_ATD_8BIT);
65 /* this is a weak define that we are overriding */
66 void pin_mux_usb(void)
72 * This is a hack. This should be represented in DT using the
73 * vbus-gpio property. However, U-Boot's DT support doesn't
74 * support any GPIO controller other than the Tegra's yet.
77 /* Turn on TAC6416's GPIO 0+1 for USB1/3's VBUS */
78 ret = i2c_set_bus_num(0);
80 printf("i2c_set_bus_num failed: %d\n", ret);
82 ret = i2c_write(0x20, 2, 1, &val, 1);
84 printf("i2c_write 0 0x20 2 failed: %d\n", ret);
86 ret = i2c_write(0x20, 6, 1, &val, 1);
88 printf("i2c_write 0 0x20 6 failed: %d\n", ret);