new file mode 100644
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+// Copyright 2021 Jonathan Neuschäfer
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+ compatible = "nuvoton,wpcm450";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ compatible = "arm,arm926ej-s";
+ device_type = "cpu";
+ reg = <0>;
+ };
+ };
+
+ clk24m: clock-24mhz {
+ /* 24 MHz dummy clock */
+ compatible = "fixed-clock";
+ clock-frequency = <24000000>;
+ #clock-cells = <0>;
+ };
+
+ soc {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-parent = <&aic>;
+ ranges;
+
+ serial0: serial@b8000000 {
+ compatible = "nuvoton,wpcm450-uart";
+ reg = <0xb8000000 0x20>;
+ reg-shift = <2>;
+ interrupts = <7 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk24m>;
+ status = "disabled";
+ };
+
+ serial1: serial@b8000100 {
+ compatible = "nuvoton,wpcm450-uart";
+ reg = <0xb8000100 0x20>;
+ reg-shift = <2>;
+ interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk24m>;
+ status = "disabled";
+ };
+
+ timer0: timer@b8001000 {
+ compatible = "nuvoton,wpcm450-timer";
+ interrupts = <12 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0xb8001000 0x1c>;
+ clocks = <&clk24m>;
+ };
+
+ watchdog0: watchdog@b800101c {
+ compatible = "nuvoton,wpcm450-wdt";
+ interrupts = <1 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0xb800101c 0x4>;
+ clocks = <&clk24m>;
+ status = "disabled";
+ };
+
+ aic: interrupt-controller@b8002000 {
+ compatible = "nuvoton,wpcm450-aic";
+ reg = <0xb8002000 0x1000>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+ };
+};
The WPCM450 is an older BMC SoC in the Nuvoton NPCM family, originally marketed as Winbond WPCM450. This patch adds a devicetree with basic functionality. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> --- arch/arm/boot/dts/nuvoton-wpcm450.dtsi | 76 ++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 arch/arm/boot/dts/nuvoton-wpcm450.dtsi -- 2.30.2