[PATCH 0/5] Add Milk-V Duo board support

[Jisheng Zhang]

Milk-V Duo[1] board is an embedded development platform based on the
CV1800B[2] chip. 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.

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

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