[PATCH 1/2] arm64: zynqmp: Describe TI phy as ethernet phy ID on ZCU102 RevB & up

Michal Simek michal.simek at amd.com
Tue Dec 20 09:23:36 CET 2022



On 12/12/22 15:14, Michal Simek wrote:
> From: Harini Katakam <harini.katakam at amd.com>
> 
> TI phy requires a reset before PHY address detection to make sure
> correct strapping via MIO is detected. Facilitate the same using
> ethernet-phy-id compatible string. GPIO reset entry will be added in
> a separate commit.
> This support is present in RevA but needs to be extended to RevB/1.0/1.1
> versions which are built on top.
> 
> Fixes: 13622c7a9dfa ("arm64: zynqmp: Describe TI phy as ethernet-phy-id")
> Signed-off-by: Harini Katakam <harini.katakam at amd.com>
> Signed-off-by: Michal Simek <michal.simek at amd.com>
> ---
> 
>   arch/arm/dts/zynqmp-zcu102-revB.dts | 22 +++++++++++++---------
>   1 file changed, 13 insertions(+), 9 deletions(-)
> 
> diff --git a/arch/arm/dts/zynqmp-zcu102-revB.dts b/arch/arm/dts/zynqmp-zcu102-revB.dts
> index 2422558b7484..b2f0b1133175 100644
> --- a/arch/arm/dts/zynqmp-zcu102-revB.dts
> +++ b/arch/arm/dts/zynqmp-zcu102-revB.dts
> @@ -16,16 +16,20 @@
>   
>   &gem3 {
>   	phy-handle = <&phyc>;
> -	phyc: ethernet-phy at c {
> -		reg = <0xc>;
> -		ti,rx-internal-delay = <0x8>;
> -		ti,tx-internal-delay = <0xa>;
> -		ti,fifo-depth = <0x1>;
> -		ti,dp83867-rxctrl-strap-quirk;
> -		/* reset-gpios = <&tca6416_u97 6 GPIO_ACTIVE_LOW>; */
> +	mdio: mdio {
> +		phyc: ethernet-phy at c {
> +			#phy-cells = <0x1>;
> +			compatible = "ethernet-phy-id2000.a231";
> +			reg = <0xc>;
> +			ti,rx-internal-delay = <0x8>;
> +			ti,tx-internal-delay = <0xa>;
> +			ti,fifo-depth = <0x1>;
> +			ti,dp83867-rxctrl-strap-quirk;
> +			/* reset-gpios = <&tca6416_u97 6 GPIO_ACTIVE_LOW>; */
> +		};
> +		/* Cleanup from RevA */
> +		/delete-node/ ethernet-phy at 21;
>   	};
> -	/* Cleanup from RevA */
> -	/delete-node/ ethernet-phy at 21;
>   };
>   
>   /* Fix collision with u61 */

Applied both.
M


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