From: Hai Pham <hai.pham.ud@xxxxxxxxxxx>
Add the initial support for Renesas R8A7800 board code.
[Kuninori: tidyup for upstreaming]
Signed-off-by: Hai Pham <hai.pham.ud@xxxxxxxxxxx>
Signed-off-by: Vinh Nguyen <vinh.nguyen.xz@xxxxxxxxxxx>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx>
Signed-off-by: Khanh Le <khanh.le.xr@xxxxxxxxxxx>
Signed-off-by: Huy Bui <huy.bui.wm@xxxxxxxxxxx>
Signed-off-by: Phong Hoang <phong.hoang.wz@xxxxxxxxxxx>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
arch/arm64/boot/dts/renesas/Makefile | 2 +
.../boot/dts/renesas/r8a78000-ironhide.dts | 87 +++++++++++++++++++
2 files changed, 89 insertions(+)
create mode 100644 arch/arm64/boot/dts/renesas/r8a78000-ironhide.dts
diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
index 6093d5f6e548..8b31cc70880d 100644
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -182,3 +182,5 @@ dtb-$(CONFIG_ARCH_R9A09G057) += r9a09g057h48-kakip.dtb
dtb-$(CONFIG_ARCH_RCAR_GEN3) += draak-ebisu-panel-aa104xd12.dtbo
dtb-$(CONFIG_ARCH_RCAR_GEN3) += salvator-panel-aa104xd12.dtbo
+
+dtb-$(CONFIG_ARCH_R8A78000) += r8a78000-ironhide.dtb
diff --git a/arch/arm64/boot/dts/renesas/r8a78000-ironhide.dts b/arch/arm64/boot/dts/renesas/r8a78000-ironhide.dts
new file mode 100644
index 000000000000..de820a84172a
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a78000-ironhide.dts
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Device Tree Source for the Ironhide board
+ *
+ * Copyright (C) 2025 Renesas Electronics Corp.
+ */
+
+/dts-v1/;
+#include "r8a78000.dtsi"
+
+/ {
+ model = "Renesas Ironhide board based on r8a78000";
+ compatible = "renesas,ironhide", "renesas,r8a78000";
+
+ aliases {
+ serial0 = &hscif0;
+ };
+
+ chosen {
+ bootargs = "maxcpus=1"; /* FIXME */
+ stdout-path = "serial0:1843200n8";
+ };
+
+ memory@60600000 {
+ device_type = "memory";
+ /* first 518MB is reserved for other purposes. */
+ reg = <0x0 0x60600000 0x0 0x5fa00000>;
+ };
+
+ memory@1080000000 {
+ device_type = "memory";
+ reg = <0x10 0x80000000 0x0 0x80000000>;
+ };
+
+ memory@1200000000 {
+ device_type = "memory";
+ reg = <0x12 0x00000000 0x1 0x00000000>;
+ };
+
+ memory@1400000000 {
+ device_type = "memory";
+ reg = <0x14 0x00000000 0x1 0x00000000>;
+ };
+
+ memory@1600000000 {
+ device_type = "memory";
+ reg = <0x16 0x00000000 0x1 0x00000000>;
+ };
+
+ memory@1800000000 {
+ device_type = "memory";
+ reg = <0x18 0x00000000 0x1 0x00000000>;
+ };
+
+ memory@1a00000000 {
+ device_type = "memory";
+ reg = <0x1a 0x00000000 0x1 0x00000000>;
+ };
+
+ memory@1c00000000 {
+ device_type = "memory";
+ reg = <0x1c 0x00000000 0x1 0x00000000>;
+ };
+
+ memory@1e00000000 {
+ device_type = "memory";
+ reg = <0x1e 0x00000000 0x1 0x00000000>;
+ };
+};
+
+&extal_clk {
+ clock-frequency = <16666666>;
+};
+
+&extalr_clk {
+ clock-frequency = <32768>;
+};
+
+&hscif0 {
+ uart-has-rtscts;
+ /* Please use exclusively to the scif0 node */
+ status = "okay";
+};
+
+&scif_clk {
+ clock-frequency = <26000000>;
+};
--
2.43.0
