zephyr/boards/arm/efr32_slwstk6061a/board.c

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/*
* Copyright (c) 2018 Christian Taedcke
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <init.h>
#include <board.h>
#include <gpio.h>
#include <misc/printk.h>
static int efr32_slwstk6061a_init(struct device *dev)
{
struct device *bce_dev; /* Board Controller Enable Gpio Device */
ARG_UNUSED(dev);
/* Enable the board controller to be able to use the serial port */
bce_dev = device_get_binding(BC_ENABLE_GPIO_NAME);
if (!bce_dev) {
printk("Board controller gpio port was not found!\n");
return -ENODEV;
}
gpio_pin_configure(bce_dev, BC_ENABLE_GPIO_PIN, GPIO_DIR_OUT);
gpio_pin_write(bce_dev, BC_ENABLE_GPIO_PIN, 1);
return 0;
}
/* needs to be done after GPIO driver init */
SYS_INIT(efr32_slwstk6061a_init, PRE_KERNEL_1, CONFIG_BOARD_INIT_PRIORITY);