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SubjectRe: [PATCH] arm64: dts: allwinner: orangepi-zero-plus: fix PHY mode
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Date
On 11/17/21 3:47 AM, Robert Marko wrote:
> Orange Pi Zero Plus uses a Realtek RTL8211E RGMII Gigabit PHY, but its
> currently set to plain RGMII mode meaning that it doesn't introduce
> delays.
>
> With this setup, TX packets are completely lost and changing the mode to
> RGMII-ID so the PHY will add delays internally fixes the issue.
>
> Tested-by: Ron Goossens <rgoossens@gmail.com>
> Signed-off-by: Robert Marko <robert.marko@sartura.hr>

Tested-by: Samuel Holland <samuel@sholland.org>

Also please add:

Fixes: a7affb13b271 ("arm64: allwinner: H5: Add Xunlong Orange Pi Zero
Plus")

so this will get backported to stable releases.

Regards,
Samuel

> ---
> arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
> index d13980ed7a79..7ec5ac850a0d 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
> @@ -69,7 +69,7 @@ &emac {
> pinctrl-0 = <&emac_rgmii_pins>;
> phy-supply = <&reg_gmac_3v3>;
> phy-handle = <&ext_rgmii_phy>;
> - phy-mode = "rgmii";
> + phy-mode = "rgmii-id";
> status = "okay";
> };
>
>

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