1 /* 2 * Copyright (c) 2020 Nordic Semiconductor ASA 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #include <kernel.h> 8 9 #define I2C_ENABLED(idx) (IS_ENABLED(CONFIG_I2C) && \ 10 DT_NODE_HAS_STATUS(DT_NODELABEL(i2c##idx), okay)) 11 12 #define SPI_ENABLED(idx) (IS_ENABLED(CONFIG_SPI) && \ 13 DT_NODE_HAS_STATUS(DT_NODELABEL(spi##idx), okay)) 14 15 #define UART_ENABLED(idx) (IS_ENABLED(CONFIG_SERIAL) && \ 16 (IS_ENABLED(CONFIG_SOC_SERIES_NRF53X) || \ 17 IS_ENABLED(CONFIG_SOC_SERIES_NRF91X)) && \ 18 DT_NODE_HAS_STATUS(DT_NODELABEL(uart##idx), okay)) 19 20 /* 21 * In most Nordic SoCs, SPI and TWI peripherals with the same instance number 22 * share certain resources and therefore cannot be used at the same time (in 23 * nRF53 and nRF91 Series this limitation concerns UART peripherals as well). 24 * 25 * In some SoCs, like nRF52810, there are only single instances of 26 * these peripherals and they are arranged in a different way, so this 27 * limitation does not apply. 28 * 29 * The build assertions below check if conflicting peripheral instances are not 30 * enabled simultaneously. 31 */ 32 33 #define CHECK(idx) \ 34 !(I2C_ENABLED(idx) && SPI_ENABLED(idx)) && \ 35 !(I2C_ENABLED(idx) && UART_ENABLED(idx)) && \ 36 !(SPI_ENABLED(idx) && UART_ENABLED(idx)) 37 38 #define MSG(idx) \ 39 "Only one of the following peripherals can be enabled: " \ 40 "SPI"#idx", SPIM"#idx", SPIS"#idx", TWI"#idx", TWIM"#idx", TWIS"#idx \ 41 IF_ENABLED(CONFIG_SOC_SERIES_NRF53X, (", UARTE"#idx)) \ 42 IF_ENABLED(CONFIG_SOC_SERIES_NRF91X, (", UARTE"#idx)) \ 43 ". Check nodes with status \"okay\" in zephyr.dts." 44 45 #if (!IS_ENABLED(CONFIG_SOC_NRF52810) && \ 46 !IS_ENABLED(CONFIG_SOC_NRF52805) && \ 47 !IS_ENABLED(CONFIG_SOC_NRF52811)) 48 BUILD_ASSERT(CHECK(0), MSG(0)); 49 #endif 50 BUILD_ASSERT(CHECK(1), MSG(1)); 51 BUILD_ASSERT(CHECK(2), MSG(2)); 52 BUILD_ASSERT(CHECK(3), MSG(3)); 53 54 #if IS_ENABLED(CONFIG_SOC_NRF52811) 55 BUILD_ASSERT(!(SPI_ENABLED(1) && I2C_ENABLED(0)), 56 "Only one of the following peripherals can be enabled: " 57 "SPI1, SPIM1, SPIS1, TWI0, TWIM0, TWIS0. " 58 "Check nodes with status \"okay\" in zephyr.dts."); 59 #endif 60
