Tom Warren | e149558 | 2011-04-14 12:09:41 +0000 | [diff] [blame] | 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> |
Tom Warren | ab37196 | 2012-09-19 15:50:56 -0700 | [diff] [blame] | 26 | #include <asm/arch/tegra.h> |
Simon Glass | ea160b1 | 2012-01-11 12:42:28 +0000 | [diff] [blame] | 27 | #include <asm/arch/clock.h> |
| 28 | #include <asm/arch/funcmux.h> |
Stephen Warren | f8eac0d | 2011-10-31 06:51:35 +0000 | [diff] [blame] | 29 | #include <asm/arch/pinmux.h> |
Tom Warren | ab37196 | 2012-09-19 15:50:56 -0700 | [diff] [blame] | 30 | #include <asm/arch-tegra/mmc.h> |
Tom Warren | 97bf58f | 2011-09-21 12:40:07 +0000 | [diff] [blame] | 31 | #include <asm/gpio.h> |
Tom Warren | 8c57e96 | 2012-05-22 11:44:48 +0000 | [diff] [blame] | 32 | #ifdef CONFIG_TEGRA_MMC |
Tom Warren | 97bf58f | 2011-09-21 12:40:07 +0000 | [diff] [blame] | 33 | #include <mmc.h> |
| 34 | #endif |
Tom Warren | e149558 | 2011-04-14 12:09:41 +0000 | [diff] [blame] | 35 | |
Simon Glass | 704e60d | 2011-11-05 04:46:51 +0000 | [diff] [blame] | 36 | /* TODO: Remove this code when the SPI switch is working */ |
| 37 | #ifndef CONFIG_SPI_UART_SWITCH |
Tom Warren | e149558 | 2011-04-14 12:09:41 +0000 | [diff] [blame] | 38 | /* |
Stephen Warren | ffac82e | 2011-10-31 06:51:37 +0000 | [diff] [blame] | 39 | * Routine: gpio_config_uart_seaboard |
Tom Warren | e149558 | 2011-04-14 12:09:41 +0000 | [diff] [blame] | 40 | * Description: Force GPIO_PI3 low on Seaboard so UART4 works. |
| 41 | */ |
Stephen Warren | ffac82e | 2011-10-31 06:51:37 +0000 | [diff] [blame] | 42 | static void gpio_config_uart_seaboard(void) |
Tom Warren | e149558 | 2011-04-14 12:09:41 +0000 | [diff] [blame] | 43 | { |
Tom Warren | e149558 | 2011-04-14 12:09:41 +0000 | [diff] [blame] | 44 | /* Enable UART via GPIO_PI3 (port 8, bit 3) so serial console works */ |
Stephen Warren | edc513f | 2011-10-06 12:52:22 +0000 | [diff] [blame] | 45 | gpio_request(GPIO_PI3, NULL); |
| 46 | gpio_direction_output(GPIO_PI3, 0); |
Tom Warren | e149558 | 2011-04-14 12:09:41 +0000 | [diff] [blame] | 47 | } |
Tom Warren | 97bf58f | 2011-09-21 12:40:07 +0000 | [diff] [blame] | 48 | |
Lucas Stach | 18561f7 | 2012-09-25 20:21:14 +0000 | [diff] [blame^] | 49 | void gpio_early_init_uart(void) |
Stephen Warren | ffac82e | 2011-10-31 06:51:37 +0000 | [diff] [blame] | 50 | { |
| 51 | if (machine_is_ventana()) |
| 52 | return; |
| 53 | gpio_config_uart_seaboard(); |
| 54 | } |
Simon Glass | 704e60d | 2011-11-05 04:46:51 +0000 | [diff] [blame] | 55 | #endif |
Stephen Warren | ffac82e | 2011-10-31 06:51:37 +0000 | [diff] [blame] | 56 | |
Tom Warren | 8c57e96 | 2012-05-22 11:44:48 +0000 | [diff] [blame] | 57 | #ifdef CONFIG_TEGRA_MMC |
Tom Warren | 97bf58f | 2011-09-21 12:40:07 +0000 | [diff] [blame] | 58 | /* |
Stephen Warren | f8eac0d | 2011-10-31 06:51:35 +0000 | [diff] [blame] | 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 | { |
Simon Glass | ea160b1 | 2012-01-11 12:42:28 +0000 | [diff] [blame] | 64 | funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT); |
| 65 | funcmux_select(PERIPH_ID_SDMMC3, FUNCMUX_SDMMC3_SDB_4BIT); |
Stephen Warren | f8eac0d | 2011-10-31 06:51:35 +0000 | [diff] [blame] | 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 | |
Tom Warren | 97bf58f | 2011-09-21 12:40:07 +0000 | [diff] [blame] | 73 | /* this is a weak define that we are overriding */ |
Stephen Warren | f8eac0d | 2011-10-31 06:51:35 +0000 | [diff] [blame] | 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(); |
Stephen Warren | f8eac0d | 2011-10-31 06:51:35 +0000 | [diff] [blame] | 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 */ |
Tom Warren | 22562a4 | 2012-09-04 17:00:24 -0700 | [diff] [blame] | 84 | tegra_mmc_init(0, 4, -1, -1); |
Stephen Warren | f8eac0d | 2011-10-31 06:51:35 +0000 | [diff] [blame] | 85 | |
| 86 | debug("board_mmc_init: init SD slot\n"); |
| 87 | /* init dev 1, SD slot, with 4-bit bus */ |
Tom Warren | 22562a4 | 2012-09-04 17:00:24 -0700 | [diff] [blame] | 88 | tegra_mmc_init(1, 4, GPIO_PI6, GPIO_PI5); |
Tom Warren | 97bf58f | 2011-09-21 12:40:07 +0000 | [diff] [blame] | 89 | |
| 90 | return 0; |
| 91 | } |
| 92 | #endif |
Simon Glass | 5d73a8d | 2012-02-27 10:52:50 +0000 | [diff] [blame] | 93 | |
| 94 | void pin_mux_usb(void) |
| 95 | { |
| 96 | /* For USB's GPIO PD0. For now, since we have no pinmux in fdt */ |
| 97 | pinmux_tristate_disable(PINGRP_SLXK); |
| 98 | } |