[PATCH v14 03/16] dt-bindings: update risc-v cpu properties

Atish Patra atishp at atishpatra.org
Tue Feb 2 12:54:02 EST 2021


On Tue, Feb 2, 2021 at 2:37 AM Damien Le Moal <damien.lemoal at wdc.com> wrote:
>
> The Canaan Kendryte K210 SoC CPU cores are based on a rocket chip
> version using a draft verion of the RISC-V ISA specifications. To avoid
> any confusion with CPU cores using stable specifications, add the
> compatible string "canaan,k210" for this SoC CPU cores.
>
> Also add the "riscv,none" value to the mmu-type property to allow a DT
> to indicate that the CPU being described does not have an MMU or that
> it has an MMU that is not usable (which is the case for the K210 SoC).
>
> Cc: Paul Walmsley <paul.walmsley at sifive.com>
> Cc: Rob Herring <robh at kernel.org>
> Cc: devicetree at vger.kernel.org
> Signed-off-by: Damien Le Moal <damien.lemoal at wdc.com>
> ---
>  Documentation/devicetree/bindings/riscv/cpus.yaml | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/riscv/cpus.yaml b/Documentation/devicetree/bindings/riscv/cpus.yaml
> index eb6843f69f7c..e534f6a7cfa1 100644
> --- a/Documentation/devicetree/bindings/riscv/cpus.yaml
> +++ b/Documentation/devicetree/bindings/riscv/cpus.yaml
> @@ -39,6 +39,7 @@ properties:
>                - sifive,u74
>                - sifive,u5
>                - sifive,u7
> +              - canaan,k210
>            - const: riscv
>        - const: riscv    # Simulator only
>      description:
> @@ -56,6 +57,7 @@ properties:
>        - riscv,sv32
>        - riscv,sv39
>        - riscv,sv48
> +      - riscv,none
>
>    riscv,isa:
>      description:
> --
> 2.29.2
>
>
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Reviewed-by: Atish Patra <atish.patra at wdc.com>

-- 
Regards,
Atish



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