Add initial support for the Renesas Gray Hawk Single board, which is
based on the R-Car V4M (R8A779H0) SoC:
- Memory,
- Crystal oscillators,
- Serial console.
Based on the White Hawk Single DTS, and on a patch for the Gray Hawk
board stack in the BSP by Hai Pham.
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
An alternative naming candidate would be "r8a779h0-gray-hawk-s.dts".
As the Gray Hawk and White Hawk board stacks share all boards except for
the CPU board, we might be able to reuse white-hawk-common.dtsi[1] once
all needed SoC support has been added to r8a779h0.dtsi.
[1] "[PATCH/RFC 0/7] arm64: dts: renesas: Add support for more R-Car V4H
and White Hawk variants"
https://lore.kernel.org/all/cover.1702309604.git.geert+renesas@xxxxxxxxx
---
arch/arm64/boot/dts/renesas/Makefile | 2 +
.../dts/renesas/r8a779h0-gray-hawk-single.dts | 52 +++++++++++++++++++
2 files changed, 54 insertions(+)
create mode 100644 arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
index 8ea68d5827105b76..34d7c2262260f220 100644
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -86,6 +86,8 @@ dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g0-white-hawk-ard-audio-da7212.dtbo
r8a779g0-white-hawk-ard-audio-da7212-dtbs := r8a779g0-white-hawk.dtb r8a779g0-white-hawk-ard-audio-da7212.dtbo
dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g0-white-hawk-ard-audio-da7212.dtb
+dtb-$(CONFIG_ARCH_R8A779H0) += r8a779h0-gray-hawk-single.dtb
+
dtb-$(CONFIG_ARCH_R8A77951) += r8a779m1-salvator-xs.dtb
r8a779m1-salvator-xs-panel-aa104xd12-dtbs := r8a779m1-salvator-xs.dtb salvator-panel-aa104xd12.dtbo
dtb-$(CONFIG_ARCH_R8A77951) += r8a779m1-salvator-xs-panel-aa104xd12.dtb
diff --git a/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts b/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
new file mode 100644
index 0000000000000000..fe3863cbf69d8454
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Device Tree Source for the Gray Hawk Single board
+ *
+ * Copyright (C) 2023 Renesas Electronics Corp.
+ * Copyright (C) 2024 Glider bv
+ */
+
+/dts-v1/;
+#include "r8a779h0.dtsi"
+
+/ {
+ model = "Renesas Gray Hawk Single board based on r8a779h0";
+ compatible = "renesas,gray-hawk-single", "renesas,r8a779h0";
+
+ aliases {
+ serial0 = &hscif0;
+ };
+
+ chosen {
+ bootargs = "ignore_loglevel";
+ stdout-path = "serial0:921600n8";
+ };
+
+ memory@48000000 {
+ device_type = "memory";
+ /* first 128MB is reserved for secure area. */
+ reg = <0x0 0x48000000 0x0 0x78000000>;
+ };
+
+ memory@480000000 {
+ device_type = "memory";
+ reg = <0x4 0x80000000 0x1 0x80000000>;
+ };
+};
+
+&extal_clk {
+ clock-frequency = <16666666>;
+};
+
+&extalr_clk {
+ clock-frequency = <32768>;
+};
+
+&hscif0 {
+ uart-has-rtscts;
+ status = "okay";
+};
+
+&scif_clk {
+ clock-frequency = <24000000>;
+};
--
2.34.1
