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