zephyr/boards/arm/stm32g0316_disco/pinmux.c

/*
 * Copyright (c) 2019 SEAL AG
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <init.h>
#include <soc.h>
#include <stm32_ll_bus.h>
#include <stm32_ll_system.h>

static int pinmux_stm32_init(const struct device *port)
{
	ARG_UNUSED(port);

#if DT_NODE_HAS_STATUS(DT_NODELABEL(usart1), okay) && CONFIG_SERIAL
	/* Remap PA11 to PA9 */
	LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SYSCFG);
	LL_SYSCFG_EnablePinRemap(LL_SYSCFG_PIN_RMP_PA11);
#endif

	return 0;
}

SYS_INIT(pinmux_stm32_init, PRE_KERNEL_1,
	 CONFIG_PINMUX_STM32_DEVICE_INITIALIZATION_PRIORITY);