boards: silabs: Add xg22 boards

boards/silabs/explorer_kits/index.rst

@@ -0,0 +1,10 @@
+.. _explorer_kits:
+
+Explorer Kits
+#############
+
+.. toctree::
+   :maxdepth: 1
+   :glob:
+
+   **/*

boards/silabs/explorer_kits/xg22/Kconfig.bg22_ek4108a

@@ -0,0 +1,5 @@
+# Copyright The Zephyr Project Contributors
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_BG22_EK4108A
+	select SOC_EFR32BG22C224F512IM40

boards/silabs/dev_kits/xg22_ek2710a/Kconfig.defconfig → boards/silabs/explorer_kits/xg22/Kconfig.defconfig

@@ -1,28 +1,21 @@
 # Copyright The Zephyr Project Contributors
 # SPDX-License-Identifier: Apache-2.0
 
-if BOARD_XG22_EK2710A
+if BOARD_BGM220_EK4314A || BOARD_XG22_EK2710A || BOARD_BG22_EK4108A
 
 config LOG_BACKEND_SWO_FREQ_HZ
 	default 875000
 	depends on LOG_BACKEND_SWO
 
-if SOC_GECKO_USE_RAIL
-
 config FPU
-	default y
-
-endif # SOC_GECKO_USE_RAIL
+	default y if SOC_GECKO_USE_RAIL || BT
 
 if BT
 
-config FPU
-	default y
-
 config MAIN_STACK_SIZE
 	default 3072 if PM
 	default 2304
 
 endif # BT
 
-endif # BOARD_XG22_EK2710A
+endif

boards/silabs/explorer_kits/xg22/bg22_ek4108a.dts

@@ -0,0 +1,50 @@
+/*
+ * Copyright The Zephyr Project Contributors
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <silabs/xg22/efr32bg22c224f512im40.dtsi>
+#include "xg22_explorer_kit.dtsi"
+
+/ {
+	model = "Silicon Labs BRD4108A (BG22 Explorer Kit)";
+	compatible = "silabs,xg22_ek4108a", "silabs,efr32bg22";
+};
+
+&radio {
+	pa-voltage-mv = <1800>;
+};
+
+&hfxo {
+	ctune = <140>;
+	precision = <50>;
+	status = "okay";
+};
+
+&lfxo {
+	ctune = <25>;
+	precision = <50>;
+	status = "okay";
+};
+
+&em23grpaclk {
+	clocks = <&lfxo>;
+};
+
+&em4grpaclk {
+	clocks = <&lfxo>;
+};
+
+&prortcclk {
+	clocks = <&lfxo>;
+};
+
+&rtccclk {
+	clocks = <&lfxo>;
+};
+
+&wdog0clk {
+	clocks = <&lfxo>;
+};

boards/silabs/explorer_kits/xg22/bg22_ek4108a.yaml

@@ -0,0 +1,24 @@
+identifier: bg22_ek4108a
+name: EFR32BG22 Explorer Kit (BG22-EK4108A, BRD4108A)
+type: mcu
+arch: arm
+ram: 32
+flash: 512
+toolchain:
+  - zephyr
+  - gnuarmemb
+supported:
+  - bluetooth
+  - counter
+  - gpio
+  - uart
+  - watchdog
+  - clock_control
+  - comparator
+  - i2c
+  - dma
+  - spi
+testing:
+  ignore_tags:
+    - pm
+vendor: silabs

boards/silabs/explorer_kits/xg22/bgm220_ek4314a.dts

@@ -0,0 +1,14 @@
+/*
+ * Copyright The Zephyr Project Contributors
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <silabs/xg22/bgm220pc22hna.dtsi>
+#include "xg22_explorer_kit.dtsi"
+
+/ {
+	model = "Silicon Labs BRD4314A (BGM220 Explorer Kit)";
+	compatible = "silabs,bgm220_ek4314a", "silabs,efr32bg22";
+};

boards/silabs/dev_kits/xg22_ek2710a/board.cmake → boards/silabs/explorer_kits/xg22/board.cmake

@@ -4,5 +4,5 @@
 board_runner_args(jlink "--device=EFR32MG22C224F512IM40" "--reset-after-load")
 include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
 
-board_runner_args(silabs_commander "--device=EFR32MG22E224F512IM40")
+board_runner_args(silabs_commander "--device=${CONFIG_SOC}")
 include(${ZEPHYR_BASE}/boards/common/silabs_commander.board.cmake)

boards/silabs/explorer_kits/xg22/board.yml

@@ -0,0 +1,16 @@
+boards:
+  - name: bgm220_ek4314a
+    full_name: BGM220 Explorer Kit (BGM220-EK4314A)
+    vendor: silabs
+    socs:
+      - name: bgm220pc22hna
+  - name: bg22_ek4108a
+    full_name: EFR32BG22 Explorer Kit (BG22-EK4108A)
+    vendor: silabs
+    socs:
+      - name: efr32bg22c224f512im40
+  - name: xg22_ek2710a
+    full_name: EFR32xG22E Explorer Kit (xG22-EK2710A)
+    vendor: silabs
+    socs:
+      - name: efr32mg22e224f512im40

boards/silabs/explorer_kits/xg22/doc/bg22_ek4108a.rst

@@ -0,0 +1,130 @@
+.. zephyr:board:: bg22_ek4108a
+
+Overview
+********
+
+The EFR32BG22 Explorer Kit (BG22-EK4108A) contains
+a Wireless System-On-Chip from the EFR32BG22 family built on an
+ARM Cortex®-M33 processor with excellent low power capabilities.
+
+Hardware
+********
+
+- EFR32BG22C224F512IM40 Mighty Gecko SoC
+- CPU core: ARM Cortex®-M33 with FPU
+- Flash memory: 512 kB
+- RAM: 32 kB
+- Transmit power: up to +6 dBm
+- Operation frequency: 2.4 GHz
+- Crystal for HFXO (38.4 MHz)
+
+For more information about the EFR32BG22 SoC and BRD4108A board, refer to these
+documents:
+
+- `EFR32BG22 Website`_
+- `EFR32BG22 Datasheet`_
+- `EFR32xG22 Reference Manual`_
+- `BRD4108A User Guide`_
+
+Supported Features
+==================
+
+.. zephyr:board-supported-hw::
+
+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                                |
++-------+-------------+-------------------------------------+
+| PC7   | GPIO        | Push Button 0                       |
++-------+-------------+-------------------------------------+
+| PA5   | USART1_TX   | UART Console VCOM_TX US0_TX         |
++-------+-------------+-------------------------------------+
+| PA6   | USART1_RX   | UART Console VCOM_RX US0_RX         |
++-------+-------------+-------------------------------------+
+
+System Clock
+============
+
+The EFR32BG22 SoC is configured to use the 38.4 MHz external oscillator on the
+board, and can operate a clock speeds of up to 76.8 MHz.
+
+Serial Port
+===========
+
+The EFR32BG22 SoC has two USARTs and one EUART.
+USART1 is connected to the board controller and is used for the console.
+
+Programming and Debugging
+*************************
+
+.. zephyr:board-supported-runners::
+
+.. note::
+   Before using the kit the first time, you should update the J-Link firmware
+   in Simplicity Studio.
+
+Flashing
+========
+
+The sample application :zephyr:code-sample:`hello_world` is used for this example.
+Build the Zephyr kernel and application:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: bg22_ek4108a
+   :goals: build
+
+Connect the bg22_ek4108a 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! bg22_ek4108a/efr32bg22c224f512im40
+
+Bluetooth
+=========
+
+To use the BLE function, run the command below to retrieve necessary binary
+blobs from the SiLabs HAL repository.
+
+.. code-block:: console
+
+   west blobs fetch hal_silabs
+
+Then build the Zephyr kernel and a Bluetooth sample with the following
+command. The :zephyr:code-sample:`bluetooth_observer` sample application is used in
+this example.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/bluetooth/observer
+   :board: bg22_ek4108a
+   :goals: build
+
+.. _EFR32BG22 Website:
+   https://www.silabs.com/wireless/bluetooth/efr32bg22-series-2-socs#
+
+.. _EFR32BG22 Datasheet:
+   https://www.silabs.com/documents/public/data-sheets/efr32bg22-datasheet.pdf
+
+.. _EFR32xG22 Reference Manual:
+   https://www.silabs.com/documents/public/reference-manuals/efr32xg22-rm.pdf
+
+.. _BRD4108A User Guide:
+   https://www.silabs.com/documents/public/user-guides/ug509-bg22-ek4108a.pdf

boards/silabs/dev_kits/xg22_ek2710a/doc/index.rst → boards/silabs/explorer_kits/xg22/doc/xg22_ek2710a.rst

@@ -49,9 +49,6 @@ means Pin number 2 on PORTA, as used in the board's datasheets and manuals.
 | PA6   | USART1_RX   | UART Console VCOM_RX US0_RX         |
 +-------+-------------+-------------------------------------+
 
-The default configuration can be found in
-:zephyr_file:`boards/silabs/dev_kits/xg22_ek2710a/xg22_ek2710a_defconfig`
-
 System Clock
 ============
 

boards/silabs/explorer_kits/xg22/xg22_ek2710a.dts

@@ -0,0 +1,50 @@
+/*
+ * Copyright The Zephyr Project Contributors
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <silabs/xg22/efr32mg22e224f512im40.dtsi>
+#include "xg22_explorer_kit.dtsi"
+
+/ {
+	model = "Silicon Labs BRD2710A (xG22 Explorer Kit)";
+	compatible = "silabs,xg22_ek2710a", "silabs,efr32mg22";
+};
+
+&radio {
+	pa-voltage-mv = <1800>;
+};
+
+&hfxo {
+	ctune = <140>;
+	precision = <50>;
+	status = "okay";
+};
+
+&lfxo {
+	ctune = <25>;
+	precision = <50>;
+	status = "okay";
+};
+
+&em23grpaclk {
+	clocks = <&lfxo>;
+};
+
+&em4grpaclk {
+	clocks = <&lfxo>;
+};
+
+&prortcclk {
+	clocks = <&lfxo>;
+};
+
+&rtccclk {
+	clocks = <&lfxo>;
+};
+
+&wdog0clk {
+	clocks = <&lfxo>;
+};

boards/silabs/dev_kits/xg22_ek2710a/xg22_ek2710a.yaml → boards/silabs/explorer_kits/xg22/xg22_ek2710a.yaml

@@ -1,5 +1,5 @@
 identifier: xg22_ek2710a
-name: EFR32xG22 Explorer Kit (xG22-EK2710A, BRD2710A)
+name: EFR32xG22E Explorer Kit (xG22-EK2710A, BRD2710A)
 type: mcu
 arch: arm
 ram: 32

boards/silabs/explorer_kits/xg22/xg22_ek2710a_defconfig

@@ -0,0 +1,10 @@
+# Copyright The Zephyr Project Contributors
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_ARM_MPU=y
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+CONFIG_SERIAL=y
+CONFIG_GPIO=y
+CONFIG_HW_STACK_PROTECTION=y
+CONFIG_REGULATOR=y