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f4ef6668 TW |
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/tegra2.h> | |
ca28090d SG |
27 | #include <asm/arch/clock.h> |
28 | #include <asm/arch/funcmux.h> | |
ae03661f | 29 | #include <asm/arch/pinmux.h> |
977a39e6 | 30 | #include <asm/arch/mmc.h> |
ccf7988b TW |
31 | #include <asm/gpio.h> |
32 | #ifdef CONFIG_TEGRA2_MMC | |
33 | #include <mmc.h> | |
34 | #endif | |
f4ef6668 | 35 | |
a04eba99 SG |
36 | /* TODO: Remove this code when the SPI switch is working */ |
37 | #ifndef CONFIG_SPI_UART_SWITCH | |
f4ef6668 | 38 | /* |
d5ef19b9 | 39 | * Routine: gpio_config_uart_seaboard |
f4ef6668 TW |
40 | * Description: Force GPIO_PI3 low on Seaboard so UART4 works. |
41 | */ | |
d5ef19b9 | 42 | static void gpio_config_uart_seaboard(void) |
f4ef6668 | 43 | { |
f4ef6668 | 44 | /* Enable UART via GPIO_PI3 (port 8, bit 3) so serial console works */ |
5fac236a SW |
45 | gpio_request(GPIO_PI3, NULL); |
46 | gpio_direction_output(GPIO_PI3, 0); | |
f4ef6668 | 47 | } |
ccf7988b | 48 | |
d5ef19b9 SW |
49 | void gpio_config_uart(void) |
50 | { | |
51 | if (machine_is_ventana()) | |
52 | return; | |
53 | gpio_config_uart_seaboard(); | |
54 | } | |
a04eba99 | 55 | #endif |
d5ef19b9 | 56 | |
ccf7988b | 57 | #ifdef CONFIG_TEGRA2_MMC |
ae03661f SW |
58 | /* |
59 | * Routine: pin_mux_mmc | |
60 | * Description: setup the pin muxes/tristate values for the SDMMC(s) | |
61 | */ | |
62 | static void pin_mux_mmc(void) | |
63 | { | |
ca28090d SG |
64 | funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT); |
65 | funcmux_select(PERIPH_ID_SDMMC3, FUNCMUX_SDMMC3_SDB_4BIT); | |
ae03661f SW |
66 | |
67 | /* For power GPIO PI6 */ | |
68 | pinmux_tristate_disable(PINGRP_ATA); | |
69 | /* For CD GPIO PI5 */ | |
70 | pinmux_tristate_disable(PINGRP_ATC); | |
71 | } | |
72 | ||
ae03661f SW |
73 | /* this is a weak define that we are overriding */ |
74 | int board_mmc_init(bd_t *bd) | |
75 | { | |
76 | debug("board_mmc_init called\n"); | |
77 | ||
78 | /* Enable muxes, etc. for SDMMC controllers */ | |
79 | pin_mux_mmc(); | |
ae03661f SW |
80 | |
81 | debug("board_mmc_init: init eMMC\n"); | |
82 | /* init dev 0, eMMC chip, with 4-bit bus */ | |
83 | /* The board has an 8-bit bus, but 8-bit doesn't work yet */ | |
9877841f | 84 | tegra2_mmc_init(0, 4, -1, -1); |
ae03661f SW |
85 | |
86 | debug("board_mmc_init: init SD slot\n"); | |
87 | /* init dev 1, SD slot, with 4-bit bus */ | |
9877841f | 88 | tegra2_mmc_init(1, 4, GPIO_PI6, GPIO_PI5); |
ccf7988b TW |
89 | |
90 | return 0; | |
91 | } | |
92 | #endif |