[PATCH v4 0/7] Add Huashan Pi board support

[Inochi Amaoto]

Huashan Pi board is an embedded development platform based on the
CV1812H chip. Add minimal device tree files for this board.
Currently, it can boot to a basic shell.

NOTE: this series is based on the Jisheng's Milk-V Duo patch.

Link: https://en.sophgo.com/product/introduce/huashan.html
Link: https://en.sophgo.com/product/introduce/cv181xH.html
Link: https://lore.kernel.org/linux-riscv/20231006121449.721-1-jszhang@kernel.org/

Changed from v3:
1. merge the patch 4 and 5 of v2 to preserve bisectability.

Changed from v2:
1. use dt override to save code.
2. code cleanup.

Changed from v1:
1. split the patch into several patch and refactor them.

Inochi Amaoto (7):
  dt-bindings: interrupt-controller: Add SOPHGO CV1812H plic
  dt-bindings: timer: Add SOPHGO CV1812H clint
  dt-bindings: riscv: Add SOPHGO Huashan Pi board compatibles
  riscv: dts: sophgo: Separate compatible specific for CV1800B soc
  riscv: dts: sophgo: cv18xx: Add gpio devices
  riscv: dts: sophgo: add initial CV1812H SoC device tree
  riscv: dts: sophgo: add Huashan Pi 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           |   1 +
 arch/riscv/boot/dts/sophgo/cv1800b.dtsi       | 119 +----------
 .../boot/dts/sophgo/cv1812h-huashan-pi.dts    |  48 +++++
 arch/riscv/boot/dts/sophgo/cv1812h.dtsi       |  24 +++
 arch/riscv/boot/dts/sophgo/cv18xx.dtsi        | 193 ++++++++++++++++++
 8 files changed, 279 insertions(+), 112 deletions(-)
 create mode 100644 arch/riscv/boot/dts/sophgo/cv1812h-huashan-pi.dts
 create mode 100644 arch/riscv/boot/dts/sophgo/cv1812h.dtsi
 create mode 100644 arch/riscv/boot/dts/sophgo/cv18xx.dtsi

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2.42.0