sample: mbox: Introduce MBOX NRFX IPC sample

#

# Copyright (c) 2021 Carlo Caione <ccaione@baylibre.com>

#

# SPDX-License-Identifier: Apache-2.0

#

cmake_minimum_required(VERSION 3.20.0)

set(REMOTE_ZEPHYR_DIR ${CMAKE_CURRENT_BINARY_DIR}/mbox_ipc_remote-prefix/src/mbox_ipc_remote-build/zephyr)

if("${BOARD}" STREQUAL "nrf5340dk_nrf5340_cpuapp")

  set(BOARD_REMOTE "nrf5340dk_nrf5340_cpunet")

else()

  message(FATAL_ERROR "${BOARD} is not supported for this sample")

endif()

message(INFO " ${BOARD} compile as Main in this sample")

find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})

project(mbox_ipc)

enable_language(C ASM)

target_sources(app PRIVATE src/main.c)

include(ExternalProject)

ExternalProject_Add(

  mbox_ipc_remote

  SOURCE_DIR ${APPLICATION_SOURCE_DIR}/remote

  INSTALL_COMMAND ""      # This particular build system has no install command

  CMAKE_CACHE_ARGS -DBOARD:STRING=${BOARD_REMOTE}

  BUILD_BYPRODUCTS "${REMOTE_ZEPHYR_DIR}/${KERNEL_BIN_NAME}"

  # NB: Do we need to pass on more CMake variables?

  BUILD_ALWAYS True

)

CONFIG_MBOX_NRFX=y

CONFIG_BOARD_ENABLE_CPUNET=y

/*

 * Copyright (c) 2021 Carlo Caione <ccaione@baylibre.com>

 *

 * SPDX-License-Identifier: Apache-2.0

 */

/ {

	soc {

		mbox: mbox@2a000 {

			compatible = "nordic,mbox-nrf-ipc";

			reg = <0x2a000 0x1000>;

			tx-mask = <0x0000ffff>;

			rx-mask = <0x0000ffff>;

			interrupts = <42 NRF_DEFAULT_IRQ_PRIORITY>;

			status = "okay";

		};

	};

};

CONFIG_PRINTK=y

CONFIG_MBOX=y

#

# Copyright (c) 2021 Carlo Caione <ccaione@baylibre.com>

#

# SPDX-License-Identifier: Apache-2.0

#

cmake_minimum_required(VERSION 3.20.0)

if("${BOARD}" STREQUAL "nrf5340dk_nrf5340_cpunet")

  message(INFO " ${BOARD} compile as remote in this sample")

else()

  message(FATAL_ERROR "${BOARD} is not supported for this sample")

endif()

find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})

project(mbox_ipc_remote)

target_sources(app PRIVATE src/main.c)