[PATCH 4/4] arm64: dts: imx8ulp-evk: enable fec

Peng Fan peng.fan at nxp.com
Sun Nov 21 17:04:23 PST 2021


> Subject: Re: [PATCH 4/4] arm64: dts: imx8ulp-evk: enable fec
> 
> > +&fec {
> > +	pinctrl-names = "default";
> > +	pinctrl-0 = <&pinctrl_enet>;
> > +	phy-mode = "rmii";
> 
> Is this really a Fast Ethernet? Not 1G?

Not 1G. it only support 10M/100M ethernet.

> 
> > +	phy-handle = <&ethphy>;
> > +	status = "okay";
> > +
> > +	mdio {
> > +		#address-cells = <1>;
> > +		#size-cells = <0>;
> > +
> > +		ethphy: ethernet-phy {
> > +			reg = <1>;
> 
> I'm surprised this does not give warnings from the DTS tools. There is a reg
> value, so it should be ethernet-phy at 1

I not see warning per my build:
"
*** Default configuration is based on 'defconfig'
#
# No change to .config
#
  CALL    scripts/atomic/check-atomics.sh
  CALL    scripts/checksyscalls.sh
  CHK     include/generated/compile.h
  DTC     arch/arm64/boot/dts/freescale/imx8ulp-evk.dtb
"
Anyway I will check and fix if the node needs a fix.

Thanks,
Peng

> 
>   Andrew



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