| /* |
| * Copyright (c) 2021 Nordic Semiconductor ASA |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/init.h> |
| #include <zephyr/kernel.h> |
| |
| /* Initialization chain of Thingy:53 board requires some delays before on board sensors |
| * could be accessed after power up. In particular bme680 and bmm150 sensors require, |
| * respectively 2ms and 1ms power on delay. In order to avoid delays sum, common delay is |
| * introduced in the board start up file. Below asserts ensure correct initialization order: |
| * on board regulators, board init (this), sensors init. |
| */ |
| #if !defined(CONFIG_TRUSTED_EXECUTION_SECURE) |
| #if defined(CONFIG_REGULATOR_FIXED) |
| BUILD_ASSERT(CONFIG_THINGY53_INIT_PRIORITY > CONFIG_REGULATOR_FIXED_INIT_PRIORITY, |
| "CONFIG_THINGY53_INIT_PRIORITY must be higher than CONFIG_REGULATOR_FIXED_INIT_PRIORITY"); |
| #endif /* CONFIG_REGULATOR_FIXED */ |
| #if defined(CONFIG_IEEE802154_NRF5) |
| BUILD_ASSERT(CONFIG_THINGY53_INIT_PRIORITY < CONFIG_IEEE802154_NRF5_INIT_PRIO, |
| "CONFIG_THINGY53_INIT_PRIORITY must be less than CONFIG_IEEE802154_NRF5_INIT_PRIO"); |
| #endif /* CONFIG_IEEE802154_NRF5 */ |
| #endif /* !CONFIG_TRUSTED_EXECUTION_SECURE */ |
| |
| #if defined(CONFIG_SENSOR) |
| BUILD_ASSERT(CONFIG_THINGY53_INIT_PRIORITY < CONFIG_SENSOR_INIT_PRIORITY, |
| "CONFIG_THINGY53_INIT_PRIORITY must be less than CONFIG_SENSOR_INIT_PRIORITY"); |
| #endif |
| |
| #if !defined(CONFIG_TRUSTED_EXECUTION_SECURE) && defined(CONFIG_SENSOR) |
| static int setup(void) |
| { |
| /* Initialization chain of Thingy:53 board requires some delays before on board |
| * sensors could be accessed after power up. In particular bme680 and bmm150 |
| * sensors require, 2ms and 1ms power on delay respectively. In order not to sum |
| * delays, common delay is introduced in the board start up file. This code is |
| * executed after sensors are powered up and before their initialization. |
| * It's ensured by build asserts at the beginning of this file. |
| */ |
| k_msleep(2); |
| |
| return 0; |
| } |
| |
| SYS_INIT(setup, POST_KERNEL, CONFIG_THINGY53_INIT_PRIORITY); |
| #endif /* !CONFIG_TRUSTED_EXECUTION_SECURE && CONFIG_SENSOR */ |
