@@ -1,3 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
+dtb-$(CONFIG_ARCH_SOPHGO) += cv1800b-milkv-duo.dtb
dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-milkv-pioneer.dtb
-
new file mode 100644
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org>
+ */
+
+/dts-v1/;
+
+#include "cv1800b.dtsi"
+
+/ {
+ model = "Milk-V Duo";
+ compatible = "milkv,duo", "sophgo,cv1800b";
+
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart1;
+ serial2 = &uart2;
+ serial3 = &uart3;
+ serial4 = &uart4;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory@80000000 {
+ device_type = "memory";
+ reg = <0x80000000 0x3f40000>;
+ };
+};
+
+&osc {
+ clock-frequency = <25000000>;
+};
+
+&uart0 {
+ status = "okay";
+};
Milk-V Duo[1] board is an embedded development platform based on the CV1800B chip. Add minimal device tree files for the development board. Support basic uart drivers, so supports booting to a basic shell. Link: https://milkv.io/duo [1] Signed-off-by: Jisheng Zhang <jszhang@kernel.org> --- arch/riscv/boot/dts/sophgo/Makefile | 2 +- .../boot/dts/sophgo/cv1800b-milkv-duo.dts | 38 +++++++++++++++++++ 2 files changed, 39 insertions(+), 1 deletion(-) create mode 100644 arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts