boards: Add support for SiLabs efr32xg24_dk2601b board

This commit adds support for Silicon Labs efr32xg24_dk2601b board.

Signed-off-by: Mateusz Sierszulski <msierszulski@antmicro.com>

boards/arm/efr32xg24_dk2601b/CMakeLists.txt

@@ -0,0 +1,5 @@
+# Copyright (c) 2021 Sateesh Kotapati
+# SPDX-License-Identifier: Apache-2.0
+
+zephyr_library()
+zephyr_library_sources(board.c)

boards/arm/efr32xg24_dk2601b/Kconfig

@@ -0,0 +1,12 @@
+# EFR32XG24 DK2601B board
+
+# Copyright (c) 2022, Silicon Labs
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_EFR32XG24_DK2601B
+
+module = BOARD_EFR32MG24
+module-str = Board Control
+source "subsys/logging/Kconfig.template.log_config"
+
+endif # BOARD_EFR32XG24_DK2601B

boards/arm/efr32xg24_dk2601b/Kconfig.board

@@ -0,0 +1,9 @@
+# EFR32XG24 DK2601B board
+
+# Copyright (c) 2021, Sateesh Kotapati
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_EFR32XG24_DK2601B
+	bool "Silicon Labs BRD2601B (Mighty Gecko Radio Board)"
+	depends on SOC_SERIES_EFR32MG24
+	select SOC_PART_NUMBER_EFR32MG24B310F1536IM48

boards/arm/efr32xg24_dk2601b/Kconfig.defconfig

@@ -0,0 +1,21 @@
+# EFR32XG24 DK2601B board
+
+# Copyright (c) 2021, Sateesh Kotapati
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_EFR32XG24_DK2601B
+
+config BOARD
+	default "efr32xg24_dk2601b"
+
+config CMU_HFXO_FREQ
+	default 40000000
+
+config CMU_LFXO_FREQ
+	default 32768
+
+config FLASH_BASE_ADDRESS
+	hex
+	default 0x08000000
+
+endif # BOARD_EFR32XG24_DK2601B

boards/arm/efr32xg24_dk2601b/board.c

@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2021 Sateesh Kotapati
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/init.h>
+#include <zephyr/drivers/gpio.h>
+#include <zephyr/sys/printk.h>
+#include <zephyr/logging/log.h>
+
+#ifdef CONFIG_SOC_GECKO_DEV_INIT
+#include "em_cmu.h"
+#endif
+
+LOG_MODULE_REGISTER(efr32xg24_dk2601b, CONFIG_BOARD_EFR32MG24_LOG_LEVEL);
+
+static int efr32xg24_dk2601b_init_clocks(void);
+
+static int efr32xg24_dk2601b_init(const struct device *dev)
+{
+	int ret;
+
+#ifdef CONFIG_SOC_GECKO_DEV_INIT
+	efr32xg24_dk2601b_init_clocks();
+#endif
+	static struct gpio_dt_spec wake_up_gpio_dev =
+		GPIO_DT_SPEC_GET(DT_NODELABEL(wake_up_trigger), gpios);
+
+	ARG_UNUSED(dev);
+
+	if (!device_is_ready(wake_up_gpio_dev.port)) {
+		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 efr32xg24_dk2601b_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);
+	CMU_ClockSelectSet(cmuClock_EM4GRPACLK, cmuSelect_LFRCO);
+#if defined(RTCC_PRESENT)
+	CMU_ClockSelectSet(cmuClock_RTCC, cmuSelect_LFRCO);
+#endif
+#if defined(SYSRTC_PRESENT)
+	CMU_ClockSelectSet(cmuClock_SYSRTC, cmuSelect_LFRCO);
+#endif
+	CMU_ClockSelectSet(cmuClock_WDOG0, cmuSelect_LFRCO);
+#if WDOG_COUNT > 1
+	CMU_ClockSelectSet(cmuClock_WDOG1, cmuSelect_LFRCO);
+#endif
+
+	return 0;
+}
+#endif
+
+/* needs to be done after GPIO driver init */
+SYS_INIT(efr32xg24_dk2601b_init, POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEVICE);

boards/arm/efr32xg24_dk2601b/board.cmake

@@ -0,0 +1,7 @@
+# Copyright (c) 2021, Sateesh Kotapati
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+board_runner_args(jlink "--device=EFR32MG24BxxxF1536" "--reset-after-load")
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

boards/arm/efr32xg24_dk2601b/doc/index.rst

@@ -0,0 +1,154 @@
+.. _efr32mg24_dk2601b:
+
+xG24-DK2601B
+###########################
+
+Overview
+********
+
+The EFR32MG24 Mighty Gecko Board dev kit contains
+a Wireless System-On-Chip from the EFR32MG24 family built on an
+ARM Cortex®-M33F processor with excellent low power capabilities.
+
+.. figure:: ./img/efr32xg24_dk2601b.jpg
+   :height: 260px
+   :align: center
+   :alt: SLWRB4180A Mighty Gecko Radio Board
+
+   xG24-DK2601B (image courtesy of Silicon Labs)
+
+Hardware
+********
+
+- EFR32MG24B310F1536IM48-B Mighty Gecko SoC
+- CPU core: ARM Cortex®-M33 with FPU
+- Flash memory: 1536 kB
+- RAM: 256 kB
+- Transmit power: up to +20 dBm
+- Operation frequency: 2.4 GHz
+- Crystals for LFXO (32.768 kHz) and HFXO (38.4 MHz).
+
+For more information about the EFR32MG24 SoC and BRD2601B board, refer to these
+documents:
+
+- `EFR32MG24 Website`_
+- `EFR32MG24 Datasheet`_
+- `EFR32xG24 Reference Manual`_
+- `BRD2601B User Guide`_
+
+Supported Features
+==================
+
+The board configuration supports the following hardware features:
+
++-----------+------------+-------------------------------------+
+| Interface | Controller | Driver/Component                    |
++===========+============+=====================================+
+| MPU       | on-chip    | memory protection unit              |
++-----------+------------+-------------------------------------+
+| NVIC      | on-chip    | nested vector interrupt controller  |
++-----------+------------+-------------------------------------+
+| SYSTICK   | on-chip    | systick                             |
++-----------+------------+-------------------------------------+
+| COUNTER   | on-chip    | stimer                              |
++-----------+------------+-------------------------------------+
+| FLASH     | on-chip    | flash memory                        |
++-----------+------------+-------------------------------------+
+| GPIO      | on-chip    | gpio                                |
++-----------+------------+-------------------------------------+
+| UART      | on-chip    | serial                              |
++-----------+------------+-------------------------------------+
+| TRNG      | on-chip    | semailbox                           |
++-----------+------------+-------------------------------------+
+| WATCHDOG  | on-chip    | watchdog                            |
++-----------+------------+-------------------------------------+
+
+Other hardware features are currently not supported by the port.
+
+Connections and IOs
+===================
+
+In the following table, the column **Name** contains Pin names. For example, PA2
+means Pin number 2 on PORTA, as used in the board's datasheets and manuals.
+
++-------+-------------+-------------------------------------+
+| Name  | Function    | Usage                               |
++=======+=============+=====================================+
+| PA4   | GPIO        | LED0                                |
++-------+-------------+-------------------------------------+
+| PB0   | GPIO        | LED1                                |
++-------+-------------+-------------------------------------+
+| PB2   | GPIO        | Push Button 0                       |
++-------+-------------+-------------------------------------+
+| PB3   | GPIO        | Push Button 1                       |
++-------+-------------+-------------------------------------+
+| PA5   | USART0_TX   | UART Console EFM_BC_TX US0_TX       |
++-------+-------------+-------------------------------------+
+| PA6   | USART0_RX   | UART Console EFM_BC_RX US0_RX       |
++-------+-------------+-------------------------------------+
+
+The default configuration can be found in the defconfig file:
+
+	``boards/arm/efr32_radio/efr32_radio_brd4186a_defconfig``
+
+System Clock
+============
+
+The EFR32MG24 SoC is configured to use the 39 MHz external oscillator on the
+board.
+
+Serial Port
+===========
+
+The EFR32MG24 SoC has one USART and two EUSARTs.
+USART0 is connected to the board controller and is used for the console.
+
+Programming and Debugging
+*************************
+
+.. note::
+   Before using the kit the first time, you should update the J-Link firmware
+   from `J-Link-Downloads`_
+
+Flashing
+========
+
+The sample application :ref:`hello_world` is used for this example.
+Build the Zephyr kernel and application:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: efr32xg24_dk2601b
+   :goals: build
+
+Connect the efr32xg24_dk2601b to your host computer using the USB port and you
+should see a USB connection.
+
+Open a serial terminal (minicom, putty, etc.) with the following settings:
+
+- Speed: 115200
+- Data: 8 bits
+- Parity: None
+- Stop bits: 1
+
+Reset the board and you'll see the following message on the corresponding serial port
+terminal session:
+
+.. code-block:: console
+
+   Hello World! efr32xg24_dk2601b
+
+.. _EFR32MG24 Website:
+   https://www.silabs.com/wireless/zigbee/efr32mg24-series-2-socs#
+
+.. _EFR32MG24 Datasheet:
+   https://www.silabs.com/documents/public/data-sheets/efr32mg24-datasheet.pdf
+
+.. _EFR32xG24 Reference Manual:
+   https://www.silabs.com/documents/public/reference-manuals/efr32xg24-rm.pdf
+
+.. _BRD2601B User Guide:
+   https://www.silabs.com/documents/public/user-guides/ug524-brd2601b-user-guide.pdf
+
+.. _J-Link-Downloads:
+   https://www.segger.com/downloads/jlink

boards/arm/efr32xg24_dk2601b/dts/bindings/silabs,gecko-wake-up-trigger.yaml

@@ -0,0 +1,15 @@
+# Copyright (c) 2022, Antmicro
+# SPDX-License-Identifier: Apache-2.0
+
+description: GPIO Wake Up Trigger for EFR32MG24
+
+compatible: "silabs,gecko-wake-up-trigger"
+
+include: base.yaml
+
+properties:
+  gpios:
+    type: phandle-array
+    required: true
+    description: |
+      GPIO used as wake up trigger from EM4 sleep

boards/arm/efr32xg24_dk2601b/efr32xg24_dk2601b.dts

@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2020 TriaGnoSys GmbH
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <silabs/efr32mg24b310f1536im48.dtsi>
+#include <silabs/efr32mg24-pinctrl.dtsi>
+
+/ {
+	model = "Silicon Labs BRD2601B (Mighty Gecko Radio Board)";
+	compatible = "silabs,efr32mg24_brd2601b", "silabs,efr32mg24";
+
+	chosen {
+		zephyr,console = &usart0;
+		zephyr,shell-uart = &usart0;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+		zephyr,code-partition = &slot0_partition;
+	};
+
+	aliases {
+		led0 = &red_led;
+		led1 = &green_led;
+		led2 = &blue_led;
+		sw0 = &button0;
+		sw1 = &button1;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		red_led: led_2 {
+			gpios = <&gpiod GECKO_PIN(2) GPIO_ACTIVE_LOW>;
+		};
+		green_led: led_0 {
+			gpios = <&gpioa GECKO_PIN(4) GPIO_ACTIVE_LOW>;
+		};
+		blue_led: led_1 {
+			gpios = <&gpiob GECKO_PIN(0) GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	buttons {
+		compatible = "gpio-keys";
+		button0: button_0 {
+			gpios = <&gpiob GECKO_PIN(2) GPIO_ACTIVE_LOW>;
+		};
+		button1: button_1 {
+			gpios = <&gpiob GECKO_PIN(3) GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	wake_up_trigger: gpio-wake-up  {
+		compatible = "silabs,gecko-wake-up-trigger";
+		gpios = <&gpioa GECKO_PIN(5) GPIO_ACTIVE_LOW>;
+	};
+
+};
+
+&cpu0 {
+	clock-frequency = <78000000>;
+};
+
+&usart0 {
+	current-speed = <115200>;
+	pinctrl-0 = <&usart0_default>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&gpio {
+	status = "okay";
+};
+
+&gpioa {
+	status = "okay";
+};
+
+&gpiob {
+	status = "okay";
+};
+
+&gpioc {
+	status = "okay";
+};
+
+&gpiod {
+	status = "okay";
+};
+
+&flash0 {
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		/* Reserve 48 kB for the bootloader */
+		boot_partition: partition@0 {
+			label = "mcuboot";
+			reg = <0x0 0x0000c000>;
+			read-only;
+		};
+
+		/* Reserve 464 kB for the application in slot 0 */
+		slot0_partition: partition@c000 {
+			label = "storage";
+			reg = <0x0000c000 0x00074000>;
+		};
+
+		/* Reserve 464 kB for the application in slot 1 */
+		slot1_partition: partition@80000 {
+			label = "image-0";
+			reg = <0x00080000 0x00074000>;
+		};
+
+		/* Reserve 32 kB for the scratch partition */
+		scratch_partition: partition@f4000 {
+			label = "image-1";
+			reg = <0x000f4000 0x00008000>;
+		};
+
+		/* Set 528Kb of storage at the end of the 1024Kb of flash */
+		storage_partition: partition@fc000 {
+			label = "image-scratch";
+			reg = <0x000fc000 0x00084000>;
+		};
+	};
+};

boards/arm/efr32xg24_dk2601b/efr32xg24_dk2601b.yaml

@@ -0,0 +1,18 @@
+identifier: efr32xg24_dk2601b
+name: BRD4601B
+type: mcu
+arch: arm
+ram: 256
+flash: 1536
+toolchain:
+  - zephyr
+  - gnuarmemb
+supported:
+  - gpio
+  - uart
+testing:
+  ignore_tags:
+    - net
+    - bluetooth
+    - pm
+    - hwinfo

boards/arm/efr32xg24_dk2601b/efr32xg24_dk2601b_defconfig

@@ -0,0 +1,18 @@
+# Copyright (c) 2022 Silicon Labs
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_SOC_SERIES_EFR32MG24=y
+CONFIG_BOARD_EFR32XG24_DK2601B=y
+CONFIG_ARM_MPU=y
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+CONFIG_SERIAL=y
+CONFIG_CORTEX_M_SYSTICK=y
+CONFIG_GPIO=y
+CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=76800000
+CONFIG_CMU_HFCLK_HFXO=y
+CONFIG_SOC_GECKO_EMU_DCDC=y
+CONFIG_SOC_GECKO_EMU_DCDC_MODE_ON=y
+CONFIG_CMU_HFCLK_LFXO=y
+CONFIG_HW_STACK_PROTECTION=y
+CONFIG_PINCTRL=y

boards/arm/efr32xg24_dk2601b/pre_dt_board.cmake

@@ -0,0 +1,5 @@
+# Copyright (c) 2021 Linaro Limited
+# SPDX-License-Identifier: Apache-2.0
+
+# SPI is implemented via usart so node name isn't spi@...
+list(APPEND EXTRA_DTC_FLAGS "-Wno-spi_bus_bridge")

boards/arm/efr32xg24_dk2601b/sl_device_init_hfxo_config.h

@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2023 Antmicro <www.antmicro.com>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef SL_DEVICE_INIT_HFXO_CONFIG_H
+#define SL_DEVICE_INIT_HFXO_CONFIG_H
+
+#define SL_DEVICE_INIT_HFXO_MODE           cmuHfxoOscMode_Crystal
+#define SL_DEVICE_INIT_HFXO_FREQ           39000000
+#define SL_DEVICE_INIT_HFXO_CTUNE          140
+
+#endif /* SL_DEVICE_INIT_HFXO_CONFIG_H */

soc/arm/silabs_exx32/efr32mg24/Kconfig.series

@@ -20,6 +20,5 @@ config SOC_SERIES_EFR32MG24
 	select SOC_GECKO_EMU
 	select SOC_GECKO_GPIO
 	select SOC_GECKO_DEV_INIT
-	select COUNTER_GECKO_STIMER
 	help
 	  Enable support for EFR32MG24 Mighty Gecko MCU series

west.yml

@@ -119,7 +119,7 @@ manifest:
       groups:
         - hal
     - name: hal_silabs
-      revision: 9dcaa761258cfdfecaacc5a9f0af92f6535d74a3
+      revision: ed4185ce6f6598892fba6ce1b6dede77b217fb37
       path: modules/hal/silabs
       groups:
         - hal