soc: renesas: Add support for RX62N MCU

The qemu-system-rx is based on RX62N, this commit added
support for the RX62N SOC layer. MCU is using RXv1 core and
system timer running at 6MHz

Signed-off-by: Duy Nguyen <duy.nguyen.xa@renesas.com>

soc/renesas/rx/rx62n/CMakeLists.txt

@@ -0,0 +1,6 @@
+# Copyright (c) 2024 Renesas Electronics Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+zephyr_include_directories(.)
+
+set(SOC_LINKER_SCRIPT ${ZEPHYR_BASE}/include/zephyr/arch/rx/linker.ld CACHE INTERNAL "")

soc/renesas/rx/rx62n/Kconfig

@@ -0,0 +1,8 @@
+# Copyright (c) 2024 Renesas Electronics Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+config SOC_SERIES_RX62N
+	select RX
+	select CPU_RXV1
+	select XIP
+	select CLOCK_CONTROL

soc/renesas/rx/rx62n/Kconfig.defconfig

@@ -0,0 +1,9 @@
+# Copyright (c) 2024 Renesas Electronics Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_SERIES_RX62N
+
+config INITIALIZATION_STACK_SIZE
+	default 512
+
+endif # SOC_SERIES_RX62N

soc/renesas/rx/rx62n/Kconfig.soc

@@ -0,0 +1,20 @@
+# Copyright (c) 2024 Renesas Electronics Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+config SOC_SERIES_RX62N
+	bool
+	select SOC_FAMILY_RENESAS_RX
+	help
+	  Renesas RX62N series
+
+config SOC_R5F562N8
+	bool
+	select SOC_SERIES_RX62N
+	help
+	  R5F562N8
+
+config SOC_SERIES
+	default "rx62n" if SOC_SERIES_RX62N
+
+config SOC
+	default "r5f562n8" if SOC_R5F562N8

soc/renesas/rx/rx62n/soc.h

@@ -0,0 +1,12 @@
+/*
+ * Copyright (c) 2024 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef __RX62N_SOC_H__
+#define __RX62N_SOC_H__
+
+#include "reg_protection.h"
+
+#endif /* __RX62N_SOC_H__ */

soc/renesas/rx/soc.yml

@@ -4,3 +4,6 @@ family:
       - name: rx130
         socs:
           - name: r5f513083xfb
+      - name: rx62n
+        socs:
+          - name: r5f562n8