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Add minimal device tree files for the development board. > Currently, now it's supported to boot to a basic shell. > > NOTE: this series is based on the SG2042 upstream series for the vendor > prefix and ARCH_SOPHGO option. Missing reference to [3]. > > Link: https://milkv.io/duo [1] > Link: https://en.sophgo.com/product/introduce/cv180xB.html [2] > Link: https://lore.kernel.org/linux-riscv/cover.1695804418.git.unicornxw@gmail.com/ [3] > > Jisheng Zhang (5): > dt-bindings: interrupt-controller: Add SOPHGO CV1800B plic > dt-bindings: timer: Add SOPHGO CV1800B clint > dt-bindings: riscv: Add Milk-V Duo board compatibles > riscv: dts: sophgo: add initial CV1800B SoC device tree > riscv: dts: sophgo: add Milk-V Duo board device tree > > .../sifive,plic-1.0.0.yaml | 1 + > .../devicetree/bindings/riscv/sophgo.yaml | 4 + > .../bindings/timer/sifive,clint.yaml | 1 + > arch/riscv/boot/dts/sophgo/Makefile | 2 +- > .../boot/dts/sophgo/cv1800b-milkv-duo.dts | 38 ++++++ > arch/riscv/boot/dts/sophgo/cv1800b.dtsi | 117 ++++++++++++++++++ > 6 files changed, 162 insertions(+), 1 deletion(-) > create mode 100644 arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts > create mode 100644 arch/riscv/boot/dts/sophgo/cv1800b.dtsi >