board: renesas: EK-RA4M3 preliminary support.

Supports samples/basic/minimal
blinky has same caveats as EK-RA6M5

Signed-off-by: Piotr Rak <[email protected]>

Author: piotrrak

boards/renesas/ek_ra4m3/Kconfig.ek_ra4m3

@@ -0,0 +1,5 @@
+# Copyright (c) 2024 Piotr Rak <[email protected]>
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_EK_RA4M3
+	select SOC_R7FA4M3AF3CFB

boards/renesas/ek_ra4m3/board.cmake

@@ -0,0 +1,12 @@
+# Copyright (c) 2024 Piotr Rak <[email protected]>
+# SPDX-License-Identifier: Apache-2.0
+
+board_set_debugger_ifnset(jlink)
+board_set_flasher_ifnset(jlink)
+
+board_runner_args(jlink
+  "--device=R7FA4M3AF"
+  "--speed=4000"
+  "--iface=SWD"
+  "--reset-after-load")
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

boards/renesas/ek_ra4m3/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: ek_ra4m3
+  vendor: Renesas
+  socs:
+  - name: r7fa4m3af3cfb

boards/renesas/ek_ra4m3/ek_ra4m3.dts

@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2024 Piotr Rak <[email protected]>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+
+#include <zephyr/dt-bindings/gpio/gpio.h>
+#include "ek_ra4m3_common.dtsi"
+
+/ {
+	model = "Renesas ek-ra4m3 board";
+
+	chosen {
+		zephyr,sram = &sram0;
+                zephyr,flash = &flash0;
+                zephyr,code-partition = &code_partition;
+        };
+
+	leds {
+		compatible = "gpio-leds";
+		led_0: led_0 {
+			gpios = <&ioport4 15 GPIO_ACTIVE_HIGH>;
+			label = "LED1 (Blue)";
+		};
+		led_1: led_1 {
+			gpios = <&ioport4 4 GPIO_ACTIVE_HIGH>;
+			label = "LED2 (Green)";
+		};
+		led_2: led_2 {
+			gpios = <&ioport4 0 GPIO_ACTIVE_HIGH>;
+			label = "LED3 (Red)";
+		};
+        };
+
+	aliases {
+		led0 = &led_0;
+		led-blue = &led_0;
+		led-green = &led_1;
+		led-red = &led_2;
+        };
+};
+
+&flash0 {
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		code_partition: partition@0 {
+			label = "code";
+			reg = <0x00000000 0x4C000>;
+			read-only;
+                };
+        };
+};
+
+&fcu {
+	status = "okay";
+};
+
+&ioport4 {
+	status = "okay";
+};
+
+&pinctrl {
+	status = "okay";
+};

boards/renesas/ek_ra4m3/ek_ra4m3.yaml

@@ -0,0 +1,10 @@
+identifier: renesas_ek_ra4m3
+name: Renesas EK-RA4M3
+type: mcu
+arch: arm
+toolchain:
+  - zypher
+ram: 128
+flash: 1024
+supported:
+  - gpio

boards/renesas/ek_ra4m3/ek_ra4m3_common.dtsi

@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2024 Piotr Rak <[email protected]>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <renesas/ra/r7fa4m3af3cfb.dtsi>
+
+/ {
+	model = "Renesas EK-RA4M3 Board";
+	compatible = "renesas,r7fa4m3af3cfb";
+};

boards/renesas/ek_ra4m3/ek_ra4m3_defconfig

@@ -0,0 +1,23 @@
+# Copyright (c) 2024 Piotr Rak <[email protected]>
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=100000000
+
+CONFIG_BUILD_OUTPUT_HEX=y
+
+# enable uart driver
+#CONFIG_SERIAL=y
+#CONFIG_UART_INTERRUPT_DRIVEN=y
+
+# TODO: enable console
+CONFIG_CONSOLE=n
+#CONFIG_UART_CONSOLE=y
+
+# enable GPIO
+CONFIG_GPIO=y
+
+CONFIG_PINCTRL=y
+
+#CONFIG_CLOCK_CONTROL=y
+
+CONFIG_USE_DT_CODE_PARTITION=y

samples/boards/renesas/ra_metalloid_puppet/ek_ra4m3.overlay

@@ -0,0 +1,11 @@
+/ {
+	chosen {
+		zephyr,console = &rtt0;
+        };
+
+	rtt0: rtt_chan0 {
+		compatible = "segger,rtt-uart";
+		status = "okay";
+	};
+
+};