[PATCH v2 0/7] riscv: add initial support for Canaan Kendryte K230

[Yangyu Chen]

K230 is an ideal chip for testing RISC-V Vector 1.0 now. Add initial
support for it to allow more people to participate in building drivers
to mainline for it.

This kernel has been tested upon factory SDK [1] with
k230_evb_only_linux_defconfig and patched mainline opensbi [2] to skip
locked pmp and successfully booted to busybox on initrd with this log [3].

[1] https://github.com/kendryte/k230_sdk
[2] https://github.com/cyyself/opensbi/tree/k230
[3] https://gist.github.com/cyyself/b9445f38cc3ba1094924bd41c9086176

Changes since v1:
- Patch dt-bindings in clint and plic
- Use enum in K230 compatible dt bindings
- Fix dts to pass `make dtbs_check`
- Add more details in commit message

v1: https://lore.kernel.org/linux-riscv/tencent_E15F8FE0B6769E6338AE690C7F4844A31706@qq.com/

Yangyu Chen (7):
  dt-bindings: riscv: Add T-HEAD C908 compatible
  dt-bindings: add Canaan K230 boards compatible strings
  dt-bindings: timer: Add Canaan K230 CLINT
  dt-bindings: interrupt-controller: Add Canaan K230 PLIC
  riscv: Kconfig.socs: Allow SOC_CANAAN with MMU for K230
  riscv: dts: add initial canmv-k230 and k230-evb dts
  riscv: config: enable SOC_CANAAN in defconfig

 .../sifive,plic-1.0.0.yaml                    |   1 +
 .../devicetree/bindings/riscv/canaan.yaml     |   8 +-
 .../devicetree/bindings/riscv/cpus.yaml       |   1 +
 .../bindings/timer/sifive,clint.yaml          |   1 +
 arch/riscv/Kconfig.socs                       |   5 +-
 arch/riscv/boot/dts/canaan/Makefile           |   2 +
 arch/riscv/boot/dts/canaan/canmv-k230.dts     |  24 +++
 arch/riscv/boot/dts/canaan/k230-evb.dts       |  24 +++
 arch/riscv/boot/dts/canaan/k230.dtsi          | 140 ++++++++++++++++++
 arch/riscv/configs/defconfig                  |   1 +
 10 files changed, 203 insertions(+), 4 deletions(-)
 create mode 100644 arch/riscv/boot/dts/canaan/canmv-k230.dts
 create mode 100644 arch/riscv/boot/dts/canaan/k230-evb.dts
 create mode 100644 arch/riscv/boot/dts/canaan/k230.dtsi

base-commit: 45e0b0fd6dc574101825ac2738b890da024e4cda
prerequisite-patch-id: 2374c56c0032e616e45854d2bc2bb1073996313d

Dependencies: https://lore.kernel.org/linux-riscv/tencent_88FEE0A2C5E0852436A2F1A1087E6803380A@qq.com/
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2.43.0