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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.
*/
/* STM32L Discovery board-specific configuration */
#include "board.h"
#include "common.h"
#include "registers.h"
void configure_board(void)
{
/* Enable all GPIOs clocks
* TODO: more fine-grained enabling for power saving
*/
STM32L_RCC_AHBENR |= 0x3f;
/* Select Alternate function for USART3 on pins PB10/PB11 */
STM32L_GPIO_AFRH(B) = (STM32L_GPIO_AFRH(B) & ~0x0000FF00) |
(0x7 << 12) | (0x7 << 8);
STM32L_GPIO_MODER(B) = (STM32L_GPIO_MODER(B) & ~0x00F00000) |
0x00A00000;
/* Green and blue LEDs : configure port 6 and 7 as output */
STM32L_GPIO_MODER(B) |= (1 << (7 * 2)) | (1 << (6 * 2));
}
/**
* Stubs for non implemented drivers
* TODO: implement
*/
int jtag_pre_init(void)
{
/* stop TIM2, TIM3 and watchdogs when the JTAG stops the CPU */
STM32L_DBGMCU_APB1FZ |= 0x00001803;
return EC_SUCCESS;
}
int gpio_pre_init(void)
{
return EC_SUCCESS;
}
int eeprom_init(void)
{
return EC_SUCCESS;
}
int i2c_init(void)
{
return EC_SUCCESS;
}
int power_button_init(void)
{
return EC_SUCCESS;
}
int adc_init(void)
{
return EC_SUCCESS;
}
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