Re: [PATCH V4 2/3] arm64: dts: imx8ulp: Add the fec support

From: Shawn Guo
Date: Wed Aug 17 2022 - 05:48:15 EST


On Wed, Jul 27, 2022 at 12:38:52AM +1000, wei.fang@xxxxxxx wrote:
> From: Wei Fang <wei.fang@xxxxxxx>
>
> Add the fec support on i.MX8ULP platforms.
>
> Signed-off-by: Wei Fang <wei.fang@xxxxxxx>
> Reviewed-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
> ---
> V2 change:
> Remove the external clocks which is related to specific board.
> V3 change:
> No change.
> V4 Change:
> Add Reviewed-by tag.
> ---
> arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
> index 60c1b018bf03..3e8a1e4f0fc2 100644
> --- a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
> @@ -16,6 +16,7 @@ / {
> #size-cells = <2>;
>
> aliases {
> + ethernet0 = &fec;
> gpio0 = &gpiod;
> gpio1 = &gpioe;
> gpio2 = &gpiof;
> @@ -365,6 +366,16 @@ usdhc2: mmc@298f0000 {
> bus-width = <4>;
> status = "disabled";
> };
> +
> + fec: ethernet@29950000 {
> + compatible = "fsl,imx8ulp-fec", "fsl,imx6ul-fec", "fsl,imx6q-fec";

Since imx8ulp-fec is compatible with imx6ul-fec, what's the point of
having imx6q-fec in there? It can be dropped, I guess?

Shawn

> + reg = <0x29950000 0x10000>;
> + interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-names = "int0";
> + fsl,num-tx-queues = <1>;
> + fsl,num-rx-queues = <1>;
> + status = "disabled";
> + };
> };
>
> gpioe: gpio@2d000080 {
> --
> 2.25.1
>