[PATCH v2 00/10] riscv: add initial support for SpacemiT K1

Fri Jun 28 08:41:53 PDT 2024

On Thu, 27 Jun 2024 15:31:14 +0000, Yixun Lan wrote:
> SpacemiT K1 is an ideal chip for some new extension such as RISC-V Vector
> 1.0 and Zicond evaluation 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 Banana Pi BPI-F3 board on vendor U-Boot
> bootflow generated by Armbian SDK[1] and patched OpenSBI[2] to enable
> Zicboz, which does not in the vendor dts on its U-Boot. Then successfully
> booted to busybox on initrd with this log[3].
> 
> As previous discussion in patch v1[4], maintainer expect more basic drivers
> ready before really merging it, which would be fine. For other follow-up patches,
> that are clk, pinctrl/gpio, reset.. My current goal would target at a headless
> system including SD card, emmc, and ethernet.
> 
> P.S: talked to Yangyu, I will help and take care of this patch series, thanks
> ---
> Changes in v2:
>  - fix timebase-frequency according to current setting
>  - add other uart dt nodes, fix input frequency
>  - introduce new uart compatible for K1 SoC
>  - add 'k1' prefix to bananapi-f3.dts
>  - fix k1-clint compatible
>  - fix some typos
>  - Link to v1: https://lore.kernel.org/r/tencent_BC64B7B1876F5D10479BD19112F73F262505@qq.com
> 
> Link: https://github.com/BPI-SINOVOIP/armbian-build/tree/v24.04.30 [1]
> Link: https://gist.github.com/cyyself/a07096e6e99c949ed13f8fa16d884402 [2]
> Link: https://gist.github.com/cyyself/a2201c01f5c8955a119641f97b7d0280 [3]
> Link: https://lore.kernel.org/r/20240618-hardwood-footrest-ab5ec5bce3cf@wendy [4]
> 
> To: Rob Herring <robh at kernel.org>
> To: Krzysztof Kozlowski <krzk+dt at kernel.org>
> To: Conor Dooley <conor+dt at kernel.org>
> To: Conor Dooley <conor at kernel.org>
> To: Paul Walmsley <paul.walmsley at sifive.com>
> To: Palmer Dabbelt <palmer at dabbelt.com>
> To: Albert Ou <aou at eecs.berkeley.edu>
> To: Daniel Lezcano <daniel.lezcano at linaro.org>
> To: Thomas Gleixner <tglx at linutronix.de>
> To: Samuel Holland <samuel.holland at sifive.com>
> To: Anup Patel <anup at brainfault.org>
> To: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
> To: Jiri Slaby <jirislaby at kernel.org>
> To: Lubomir Rintel <lkundrak at v3.sk>
> Cc: devicetree at vger.kernel.org
> Cc: linux-kernel at vger.kernel.org
> Cc: Palmer Dabbelt <palmer at sifive.com>
> Cc: linux-riscv at lists.infradead.org
> Cc: linux-serial at vger.kernel.org
> Cc: Inochi Amaoto <inochiama at outlook.com>
> Cc: Meng Zhang <zhangmeng.kevin at spacemit.com>
> 
> Signed-off-by: Yangyu Chen <cyy at cyyself.name>
> Signed-off-by: Yixun Lan <dlan at gentoo.org>
> 
> ---
> Yangyu Chen (9):
>       dt-bindings: vendor-prefixes: add spacemit
>       dt-bindings: riscv: Add SpacemiT X60 compatibles
>       dt-bindings: riscv: add SpacemiT K1 bindings
>       dt-bindings: timer: Add SpacemiT K1 CLINT
>       dt-bindings: interrupt-controller: Add SpacemiT K1 PLIC
>       riscv: add SpacemiT SOC family Kconfig support
>       riscv: dts: add initial SpacemiT K1 SoC device tree
>       riscv: dts: spacemit: add Banana Pi BPI-F3 board device tree
>       riscv: defconfig: enable SpacemiT SoC
> 
> Yixun Lan (1):
>       dt-bindings: serial: 8250: Add SpacemiT K1 uart compatible
> 
>  .../interrupt-controller/sifive,plic-1.0.0.yaml    |   5 +-
>  Documentation/devicetree/bindings/riscv/cpus.yaml  |   1 +
>  .../devicetree/bindings/riscv/spacemit.yaml        |  24 ++
>  Documentation/devicetree/bindings/serial/8250.yaml |   4 +-
>  .../devicetree/bindings/timer/sifive,clint.yaml    |   1 +
>  .../devicetree/bindings/vendor-prefixes.yaml       |   2 +
>  arch/riscv/Kconfig.socs                            |   5 +
>  arch/riscv/boot/dts/Makefile                       |   1 +
>  arch/riscv/boot/dts/spacemit/Makefile              |   2 +
>  arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts    |  19 ++
>  arch/riscv/boot/dts/spacemit/k1.dtsi               | 378 +++++++++++++++++++++
>  arch/riscv/configs/defconfig                       |   1 +
>  12 files changed, 441 insertions(+), 2 deletions(-)
> ---
> base-commit: f2661062f16b2de5d7b6a5c42a9a5c96326b8454
> change-id: 20240626-k1-01-basic-dt-1aa31eeebcd2
> 
> Best regards,
> --
> Yixun Lan <dlan at gentoo.org>
> 
> 
> 

My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade

New warnings running 'make CHECK_DTBS=y spacemit/k1-bananapi-f3.dtb' for 20240627-k1-01-basic-dt-v2-0-cc06c7555f07 at gentoo.org:

arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dtb: uart at d4017100: $nodename:0: 'uart at d4017100' does not match '^serial(@.*)?$'
	from schema $id: http://devicetree.org/schemas/serial/8250.yaml#
arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dtb: uart at d4017200: $nodename:0: 'uart at d4017200' does not match '^serial(@.*)?$'
	from schema $id: http://devicetree.org/schemas/serial/8250.yaml#
arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dtb: uart at d4017300: $nodename:0: 'uart at d4017300' does not match '^serial(@.*)?$'
	from schema $id: http://devicetree.org/schemas/serial/8250.yaml#
arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dtb: uart at d4017400: $nodename:0: 'uart at d4017400' does not match '^serial(@.*)?$'
	from schema $id: http://devicetree.org/schemas/serial/8250.yaml#
arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dtb: uart at d4017500: $nodename:0: 'uart at d4017500' does not match '^serial(@.*)?$'
	from schema $id: http://devicetree.org/schemas/serial/8250.yaml#
arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dtb: uart at d4017600: $nodename:0: 'uart at d4017600' does not match '^serial(@.*)?$'
	from schema $id: http://devicetree.org/schemas/serial/8250.yaml#
arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dtb: uart at d4017700: $nodename:0: 'uart at d4017700' does not match '^serial(@.*)?$'
	from schema $id: http://devicetree.org/schemas/serial/8250.yaml#
arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dtb: uart at d4017800: $nodename:0: 'uart at d4017800' does not match '^serial(@.*)?$'
	from schema $id: http://devicetree.org/schemas/serial/8250.yaml#