linux-kernel - Re: [PATCH] dt-bindings: riscv: cpus: Add AMD MicroBlaze V compatible

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Message-ID: <20231108171203.GA2434548-robh@kernel.org>
Date:   Wed, 8 Nov 2023 11:12:03 -0600
From:   Rob Herring <robh@...nel.org>
To:     Michal Simek <michal.simek@....com>
Cc:     linux-kernel@...r.kernel.org, monstr@...str.eu,
        michal.simek@...inx.com, git@...inx.com,
        Albert Ou <aou@...s.berkeley.edu>,
        Conor Dooley <conor@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH] dt-bindings: riscv: cpus: Add AMD MicroBlaze V compatible

On Mon, Nov 06, 2023 at 12:37:47PM +0100, Michal Simek wrote:
> MicroBlaze V is new AMD/Xilinx soft-core 32bit RISC-V processor IP.
> It is hardware compatible with classic MicroBlaze processor.

How is that possible? It's a different instruction set, right? I suppose 
the IP interfaces (signals) are the same/compatible.

> 
> Signed-off-by: Michal Simek <michal.simek@....com>
> ---
> 
>  Documentation/devicetree/bindings/riscv/cpus.yaml | 1 +
>  1 file changed, 1 insertion(+)

Anyways,

Acked-by: Rob Herring <robh@...nel.org>

> 
> diff --git a/Documentation/devicetree/bindings/riscv/cpus.yaml b/Documentation/devicetree/bindings/riscv/cpus.yaml
> index 97e8441eda1c..7b077af62b27 100644
> --- a/Documentation/devicetree/bindings/riscv/cpus.yaml
> +++ b/Documentation/devicetree/bindings/riscv/cpus.yaml
> @@ -32,6 +32,7 @@ properties:
>      oneOf:
>        - items:
>            - enum:
> +              - amd,mbv32
>                - andestech,ax45mp
>                - canaan,k210
>                - sifive,bullet0
> -- 
> 2.36.1
>