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/*
* arch/arm/mach-tegra/board-loki-pinmux.c
*
* Copyright (c) 2013, NVIDIA Corporation. All rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <mach/pinmux.h>
#include <mach/gpio-tegra.h>
#include "board.h"
#include "board-loki.h"
#include "tegra-board-id.h"
#include "devices.h"
#include "gpio-names.h"
#include <mach/pinmux-t12.h>
/* Pinmux changes to support UART over uSD adapter E2542 */
static __initdata struct tegra_pingroup_config loki_sdmmc3_uart_pinmux[] = {
DEFAULT_PINMUX(SDMMC3_CMD, UARTA, NORMAL, NORMAL, INPUT),
DEFAULT_PINMUX(SDMMC3_DAT1, UARTA, NORMAL, NORMAL, OUTPUT),
};
static __initdata struct tegra_pingroup_config loki_ffd_pinmux_common[] = {
GPIO_PINMUX_NON_OD(DP_HPD, PULL_DOWN, NORMAL, OUTPUT),
};
static struct gpio_init_pin_info init_gpio_mode_loki_ffd_common[] = {
GPIO_INIT_PIN_MODE(TEGRA_GPIO_PFF0, false, 0),
};
static void __init loki_gpio_init_configure(void)
{
int len;
int i;
struct gpio_init_pin_info *pins_info;
len = ARRAY_SIZE(init_gpio_mode_loki_ffd_common);
pins_info = init_gpio_mode_loki_ffd_common;
for (i = 0; i < len; ++i) {
tegra_gpio_init_configure(pins_info->gpio_nr,
pins_info->is_input, pins_info->value);
pins_info++;
}
}
int __init loki_pinmux_init(void)
{
struct board_info bi;
tegra_get_board_info(&bi);
if (bi.board_id == BOARD_P2530) {
loki_gpio_init_configure();
tegra_pinmux_config_table(loki_ffd_pinmux_common,
ARRAY_SIZE(loki_ffd_pinmux_common));
};
if (is_uart_over_sd_enabled()) {
tegra_pinmux_config_table(loki_sdmmc3_uart_pinmux,
ARRAY_SIZE(loki_sdmmc3_uart_pinmux));
/* On loki, UART-A is the physical device for
* UART over uSD card
*/
set_sd_uart_port_id(0);
}
return 0;
}
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