[PATCH v2] dt-bindings: riscv: add starfive jh7100 bindings

[PATCH v2] dt-bindings: riscv: add starfive jh7100 bindings

[Drew Fustini]

Add DT binding documentation for the StarFive JH7100 Soc [1] and the
BeagleV Starlight JH7100 board [2].

[1] https://github.com/starfive-tech/beaglev_doc
[2] https://github.com/beagleboard/beaglev-starlight

Signed-off-by: Drew Fustini <drew@beagleboard.org>
---
v2 changes:
- removed "items:" entry that only had "const: starfive,jh7100"
- correct typo in Description:

Results of running checks:

  $ make -j8 ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- dt_binding_check \
  DT_SCHEMA_FILES=Documentation/devicetree/bindings/riscv/starfive.yaml
  DTEX    Documentation/devicetree/bindings/riscv/starfive.example.dts
  DTC     Documentation/devicetree/bindings/riscv/starfive.example.dt.yaml
  CHECK   Documentation/devicetree/bindings/riscv/starfive.example.dt.yaml

  $ make -j8 ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- dtbs_check \
  DT_SCHEMA_FILES=Documentation/devicetree/bindings/riscv/starfive.yaml
  DTC     arch/riscv/boot/dts/starfive/jh7100-beaglev-starlight.dt.yaml
  CHECK   arch/riscv/boot/dts/starfive/jh7100-beaglev-starlight.dt.yaml

The dts file is from vendor repo and is being cleaned up right now in
preperation for submitting to the mailing list:
https://github.com/starfive-tech/linux/tree/beaglev/arch/riscv/boot/dts/starfive

 .../devicetree/bindings/riscv/starfive.yaml   | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/riscv/starfive.yaml

diff --git a/Documentation/devicetree/bindings/riscv/starfive.yaml b/Documentation/devicetree/bindings/riscv/starfive.yaml
new file mode 100644
index 000000000000..68954d0a7108
--- /dev/null
+++ b/Documentation/devicetree/bindings/riscv/starfive.yaml
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/riscv/starfive.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive SoC-based boards
+
+maintainers:
+  - Michael Zhu <michael.zhu@starfivetech.com>
+  - Drew Fustini <drew@beagleboard.org>
+
+description:
+  StarFive SoC-based boards
+
+properties:
+  $nodename:
+    const: '/'
+  compatible:
+    oneOf:
+      - items:
+          - const: beagle,beaglev-starlight-jh7100
+          - const: starfive,jh7100
+
+additionalProperties: true
+
+...
-- 
2.27.0

Re: [PATCH v2] dt-bindings: riscv: add starfive jh7100 bindings

[Palmer Dabbelt]

On Fri, 25 Jun 2021 00:12:42 PDT (-0700), drew@beagleboard.org wrote:
> Add DT binding documentation for the StarFive JH7100 Soc [1] and the
> BeagleV Starlight JH7100 board [2].
>
> [1] https://github.com/starfive-tech/beaglev_doc
> [2] https://github.com/beagleboard/beaglev-starlight
>
> Signed-off-by: Drew Fustini <drew@beagleboard.org>
> ---
> v2 changes:
> - removed "items:" entry that only had "const: starfive,jh7100"
> - correct typo in Description:
>
> Results of running checks:
>
>   $ make -j8 ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- dt_binding_check \
>   DT_SCHEMA_FILES=Documentation/devicetree/bindings/riscv/starfive.yaml
>   DTEX    Documentation/devicetree/bindings/riscv/starfive.example.dts
>   DTC     Documentation/devicetree/bindings/riscv/starfive.example.dt.yaml
>   CHECK   Documentation/devicetree/bindings/riscv/starfive.example.dt.yaml
>
>   $ make -j8 ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- dtbs_check \
>   DT_SCHEMA_FILES=Documentation/devicetree/bindings/riscv/starfive.yaml
>   DTC     arch/riscv/boot/dts/starfive/jh7100-beaglev-starlight.dt.yaml
>   CHECK   arch/riscv/boot/dts/starfive/jh7100-beaglev-starlight.dt.yaml
>
> The dts file is from vendor repo and is being cleaned up right now in
> preperation for submitting to the mailing list:
> https://github.com/starfive-tech/linux/tree/beaglev/arch/riscv/boot/dts/starfive
>
>  .../devicetree/bindings/riscv/starfive.yaml   | 27 +++++++++++++++++++
>  1 file changed, 27 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/riscv/starfive.yaml
>
> diff --git a/Documentation/devicetree/bindings/riscv/starfive.yaml b/Documentation/devicetree/bindings/riscv/starfive.yaml
> new file mode 100644
> index 000000000000..68954d0a7108
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/riscv/starfive.yaml
> @@ -0,0 +1,27 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/riscv/starfive.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: StarFive SoC-based boards
> +
> +maintainers:
> +  - Michael Zhu <michael.zhu@starfivetech.com>
> +  - Drew Fustini <drew@beagleboard.org>
> +
> +description:
> +  StarFive SoC-based boards
> +
> +properties:
> +  $nodename:
> +    const: '/'
> +  compatible:
> +    oneOf:
> +      - items:
> +          - const: beagle,beaglev-starlight-jh7100
> +          - const: starfive,jh7100

The SiFive boards have

    oneOf:
      - items:
          - enum:
              - sifive,hifive-unleashed-a00
          - const: sifive,fu540-c000
          - const: sifive,fu540

IIUC there's no practical difference between a single-option enum and 
the const, but it does bring up the board version number.  Is there any 
revision number on the beaglev boards?

> +
> +additionalProperties: true
> +
> +...

Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>

as I'm assuming this is targeted towards the DT tree.  Thanks!