[PATCH] sunxi: H6: Enable Ethernet on Orange Pi One Plus

[Jagan Teki]

+ Andre

On Tue, Jul 11, 2023 at 6:11 AM Anne Macedo <retpolanne at posteo.net> wrote:
>
> Enable Ethernet on Orange Pi One Plus by using the correct phy for
> Realtek RTL8211E instead of the Generic One. Also use CONFIG_MACPWR to
> turn on ethernet on startup.
>
> After this patch is applied, a few issues can be seen:
>
> - there's still a PHY reset timed out error that doesn't seem to cause
>   any impacts to the overall connection
>
> - sometimes the emac driver times out after reset (yellow LED turns on
>   and never blinks)
>
> For future patches: for now, CONFIG_MACPWR is the only way to enable
> Ethernet on boot. There's already code on the dts for using the 3v3-gmac
> regulator. However, it is not probed on boot, so it only starts after a
> "regulator status" command is issued.
>
> More details about the troubleshooting on [1].
>
> [1] https://lore.kernel.org/u-boot/4wsvwgy56e2xfgtvioru2tf2ofkqprlts36qggivxogww6pn5j@4jk63zxhzhag/
>
> Signed-off-by: Anne Macedo <retpolanne at posteo.net>
> ---
>  arch/arm/dts/sun50i-h6-orangepi-one-plus.dts | 2 +-
>  configs/orangepi_one_plus_defconfig          | 4 ++++
>  2 files changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/dts/sun50i-h6-orangepi-one-plus.dts b/arch/arm/dts/sun50i-h6-orangepi-one-plus.dts
> index 29a081e72a..6427c58f8a 100644
> --- a/arch/arm/dts/sun50i-h6-orangepi-one-plus.dts
> +++ b/arch/arm/dts/sun50i-h6-orangepi-one-plus.dts
> @@ -37,7 +37,7 @@
>
>  &mdio {
>         ext_rgmii_phy: ethernet-phy at 1 {
> -               compatible = "ethernet-phy-ieee802.3-c22";
> +               compatible = "ethernet-phy-id001c.c915", "ethernet-phy-ieee802.3-c22" ;

DT change has to be merged by the Linux tree first. Try to work on
that gets approved.

Thanks,
Jagan.