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/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* ADV board-specific configuration */
#include "board.h"
#include "common.h"
#include "gpio.h"
#include "registers.h"
#include "util.h"
#define GPIO_KB_INPUT (GPIO_INPUT | GPIO_PULL_UP | GPIO_INT_BOTH)
#define GPIO_KB_OUTPUT (GPIO_OUTPUT | GPIO_PULL_UP | GPIO_OPEN_DRAIN)
/* GPIO interrupt handlers prototypes */
void gaia_power_event(enum gpio_signal signal);
/* GPIO signal list. Must match order from enum gpio_signal. */
const struct gpio_info gpio_list[GPIO_COUNT] = {
/* Inputs with interrupt handlers are first for efficiency */
{"EC_PWRON", GPIO_A, (1<<0), GPIO_INT_BOTH, gaia_power_event},
{"PP1800_LDO2", GPIO_A, (1<<1), GPIO_INT_BOTH, gaia_power_event},
{"XPSHOLD", GPIO_A, (1<<11), GPIO_INT_RISING, gaia_power_event},
{"CHARGER_INT", GPIO_B, (1<<0), GPIO_INT_RISING, NULL},
{"LID_OPEN", GPIO_C, (1<<13), GPIO_INT_BOTH, NULL},
{"KB_IN00", GPIO_C, (1<<8), GPIO_KB_INPUT, matrix_interrupt},
{"KB_IN01", GPIO_C, (1<<9), GPIO_KB_INPUT, matrix_interrupt},
{"KB_IN02", GPIO_C, (1<<10), GPIO_KB_INPUT, matrix_interrupt},
{"KB_IN03", GPIO_C, (1<<11), GPIO_KB_INPUT, matrix_interrupt},
{"KB_IN04", GPIO_C, (1<<12), GPIO_KB_INPUT, matrix_interrupt},
{"KB_IN05", GPIO_C, (1<<14), GPIO_KB_INPUT, matrix_interrupt},
{"KB_IN06", GPIO_C, (1<<15), GPIO_KB_INPUT, matrix_interrupt},
{"KB_IN07", GPIO_D, (1<<2), GPIO_KB_INPUT, matrix_interrupt},
/* Other inputs */
/* Outputs */
{"EN_PP1350", GPIO_A, (1<<9), GPIO_OUT_LOW, NULL},
{"EN_PP5000", GPIO_A, (1<<10), GPIO_OUT_LOW, NULL},
{"EN_PP3300", GPIO_A, (1<<8), GPIO_OUT_LOW, NULL},
{"PMIC_ACOK", GPIO_A, (1<<12), GPIO_OUT_HIGH, NULL},
{"ENTERING_RW", GPIO_B, (1<<1), GPIO_OUT_LOW, NULL},
{"CHARGER_EN", GPIO_B, (1<<2), GPIO_OUT_LOW, NULL},
{"EC_INT", GPIO_B, (1<<9), GPIO_OUT_LOW, NULL},
{"KB_OUT00", GPIO_B, (1<<5), GPIO_KB_OUTPUT, NULL},
{"KB_OUT01", GPIO_B, (1<<8), GPIO_KB_OUTPUT, NULL},
{"KB_OUT02", GPIO_B, (1<<12), GPIO_KB_OUTPUT, NULL},
{"KB_OUT03", GPIO_B, (1<<14), GPIO_KB_OUTPUT, NULL},
{"KB_OUT04", GPIO_B, (1<<15), GPIO_KB_OUTPUT, NULL},
{"KB_OUT05", GPIO_C, (1<<0), GPIO_KB_OUTPUT, NULL},
{"KB_OUT06", GPIO_C, (1<<2), GPIO_KB_OUTPUT, NULL},
{"KB_OUT07", GPIO_C, (1<<4), GPIO_KB_OUTPUT, NULL},
{"KB_OUT08", GPIO_C, (1<<5), GPIO_KB_OUTPUT, NULL},
{"KB_OUT09", GPIO_C, (1<<6), GPIO_KB_OUTPUT, NULL},
{"KB_OUT10", GPIO_B, (1<<13), GPIO_KB_OUTPUT, NULL},
{"KB_OUT11", GPIO_C, (1<<1), GPIO_KB_OUTPUT, NULL},
{"KB_OUT12", GPIO_C, (1<<7), GPIO_KB_OUTPUT, NULL},
};
void configure_board(void)
{
/* Enable all GPIOs clocks
* TODO: more fine-grained enabling for power saving
*/
STM32L_RCC_AHBENR |= 0x3f;
STM32L_RCC_APB2ENR |= 0x01;
/* Select Alternate function for USART2 on pins PA2/PA3 */
gpio_set_alternate_function(GPIO_A, (1<<2) | (1<<3), GPIO_ALT_USART);
}
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