[PATCH net-next 2/2] dt-bindings: add mdio frequency description

Michal Simek michal.simek at amd.com
Thu Oct 20 03:39:46 PDT 2022



On 10/20/22 11:41, Andy Chiu wrote:
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> 
> 
> Add a property to set mdio bus frequency at runtime by DT.
> 
> Signed-off-by: Andy Chiu <andy.chiu at sifive.com>
> Reviewed-by: Greentime Hu <greentime.hu at sifive.com>
> ---
>   Documentation/devicetree/bindings/net/xilinx_axienet.txt | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/xilinx_axienet.txt b/Documentation/devicetree/bindings/net/xilinx_axienet.txt
> index 1aa4c6006cd0..d78cf402aa2a 100644
> --- a/Documentation/devicetree/bindings/net/xilinx_axienet.txt
> +++ b/Documentation/devicetree/bindings/net/xilinx_axienet.txt
> @@ -43,6 +43,9 @@ Optional properties:
>                    support both 1000BaseX and SGMII modes. If set, the phy-mode
>                    should be set to match the mode selected on core reset (i.e.
>                    by the basex_or_sgmii core input line).
> +- xlnx,mdio-freq: Define the clock frequency of the MDIO bus. If the property
> +                 does not pressent on the DT, then the mdio driver would use
> +                 the default 2.5 MHz clock, as mentioned on 802.3 spc.

Isn't it better to specify it based on ccf description. It means &clk and used 
clock framework to find value?

Thanks,
Michal



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