On 02/07/2024 14:46, Philipp Puschmann wrote:
> Providing ethernet aliases solves a subtle problem for the rk3568. The
> bus_id used for the sysfs directory name of the mdio. Without ethernet
> alias the bus_id is always 0 and so creating the sysfs directory for the
> second mdio fails with a duplicate filename error and by this the setup
> of the second ethernet port fails too.
>
> Note: The alias numbering is inverted as gmac1 comes from more generic
> rk356x.dtsi but gmac0 comes from specialised rk3568.
>
> Signed-off-by: Philipp Puschmann <p.puschmann@xxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/rockchip/rk3568.dtsi | 4 ++++
> arch/arm64/boot/dts/rockchip/rk356x.dtsi | 1 +
> 2 files changed, 5 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/rockchip/rk3568.dtsi b/arch/arm64/boot/dts/rockchip/rk3568.dtsi
> index f1be76a54ceb..42018c8666e0 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3568.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk3568.dtsi
> @@ -8,6 +8,10 @@
> / {
> compatible = "rockchip,rk3568";
>
> + aliases {
> + ethernet1 = &gmac0;
Nope, sorry. SoC does not have working Ethernet.
Best regards,
Krzysztof
