boards: Very minimal support for Renesas EK-RA6M5 board.

Supports only samples/basic/minimal.

- pinctrl, gpio partly works, yet minimum of ioports are added,
- pin IRQs for GPIOs aren't set - should work in theory but not tested.

Since this board has two user switches, those will be made available in dts
in follow up change.

Blinky will work with caveat, that seconds are few others magnitude longer;
Reason being proper clocks are not configured yet in this change and
RTC/timers aren't supported yet.

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

Author: piotrrak

boards/renesas/ek_ra6m5/Kconfig.ek_ra6m5

@@ -0,0 +1,5 @@
+# Copyright (c) 2024 Piotr Rak <[email protected]>
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_EK_RA6M5
+	select SOC_R7FA6M5BH3CFC

boards/renesas/ek_ra6m5/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=R7FA6M5BH"
+  "--speed=4000"
+  "--iface=SWD"
+  "--reset-after-load")
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

boards/renesas/ek_ra6m5/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: ek_ra6m5
+  vendor: Renesas
+  socs:
+  - name: r7fa6m5bh3cfc

boards/renesas/ek_ra6m5/ek_ra6m5.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_ra6m5_common.dtsi"
+
+/ {
+	model = "Renesas ek-ra6m5 board";
+
+	chosen {
+		zephyr,sram = &sram0;
+                zephyr,flash = &flash0;
+                zephyr,code-partition = &code_partition;
+        };
+
+	leds {
+		compatible = "gpio-leds";
+		led_0: led_0 {
+			gpios = <&ioport0 6 GPIO_ACTIVE_HIGH>;
+			label = "LED1 (Blue)";
+		};
+		led_1: led_1 {
+			gpios = <&ioport0 7 GPIO_ACTIVE_HIGH>;
+			label = "LED2 (Green)";
+		};
+		led_2: led_2 {
+			gpios = <&ioport0 8 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";
+};
+
+&ioport0 {
+	status = "okay";
+};
+
+&pinctrl {
+	status = "okay";
+};

boards/renesas/ek_ra6m5/ek_ra6m5.yaml

@@ -0,0 +1,11 @@
+identifier: renesas_ek_ra6m5
+name: Renesas EK-RA6M5
+type: mcu
+arch: arm
+toolchain:
+  - zypher
+ram: 512
+flash: 2048
+supported:
+  - gpio
+

boards/renesas/ek_ra6m5/ek_ra6m5_common.dtsi

@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2024 Piotr Rak <[email protected]>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <renesas/ra/r7fa6m5bh3cfc.dtsi>
+
+/ {
+	model = "Renesas EK-RA6M5 Board";
+	compatible = "renesas,r7fa6m5bh3cfc";
+};

boards/renesas/ek_ra6m5/ek_ra6m5_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=200000000
+
+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