| /* |
| * Copyright (c) 2021 Sateesh Kotapati |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/drivers/gpio.h> |
| #include <zephyr/init.h> |
| #include <zephyr/logging/log.h> |
| |
| #ifdef CONFIG_SOC_GECKO_DEV_INIT |
| #include "em_cmu.h" |
| #endif |
| |
| |
| LOG_MODULE_REGISTER(thunderboard, CONFIG_BOARD_SLTB010A_LOG_LEVEL); |
| |
| static int thunderboard_init_clocks(void); |
| |
| static int thunderboard_init(void) |
| { |
| int ret; |
| |
| #ifdef CONFIG_SOC_GECKO_DEV_INIT |
| thunderboard_init_clocks(); |
| #endif |
| static struct gpio_dt_spec wake_up_gpio_dev = |
| GPIO_DT_SPEC_GET(DT_NODELABEL(wake_up_trigger), gpios); |
| |
| |
| if (!gpio_is_ready_dt(&wake_up_gpio_dev)) { |
| LOG_ERR("Wake-up GPIO device was not found!\n"); |
| return -ENODEV; |
| } |
| ret = gpio_pin_configure_dt(&wake_up_gpio_dev, GPIO_OUTPUT_ACTIVE); |
| if (ret < 0) { |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_SOC_GECKO_DEV_INIT |
| static int thunderboard_init_clocks(void) |
| { |
| CMU_ClockSelectSet(cmuClock_SYSCLK, cmuSelect_HFRCODPLL); |
| #if defined(_CMU_EM01GRPACLKCTRL_MASK) |
| CMU_ClockSelectSet(cmuClock_EM01GRPACLK, cmuSelect_HFRCODPLL); |
| #endif |
| #if defined(_CMU_EM01GRPBCLKCTRL_MASK) |
| CMU_ClockSelectSet(cmuClock_EM01GRPBCLK, cmuSelect_HFRCODPLL); |
| #endif |
| CMU_ClockSelectSet(cmuClock_EM23GRPACLK, cmuSelect_LFRCO); |
| #if defined(RTCC_PRESENT) |
| CMU_ClockSelectSet(cmuClock_RTCC, cmuSelect_LFRCO); |
| #endif |
| CMU_ClockSelectSet(cmuClock_WDOG0, cmuSelect_LFRCO); |
| |
| return 0; |
| } |
| #endif |
| |
| /* needs to be done after GPIO driver init */ |
| SYS_INIT(thunderboard_init, POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEVICE); |