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riscv: dts: sophgo: add Milk-V Duo board device tree

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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>
Acked-by: Chen Wang <unicorn_wang@outlook.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
This commit is contained in:
Jisheng Zhang 2023-10-06 20:14:49 +08:00 committed by Conor Dooley
parent c3dffa879c
commit 27df2ed3b1
2 changed files with 39 additions and 0 deletions
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1
arch/riscv/boot/dts/sophgo/Makefile
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@ -1,2 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
dtb-$(CONFIG_ARCH_SOPHGO) += cv1800b-milkv-duo.dtb
dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-milkv-pioneer.dtb

38
arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts Normal file
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@ -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";
};