On 11/26/23 23:10, Emil Renner Berthing wrote: > Cristian Ciocaltea wrote: >> The BeagleV Starlight SBC uses a Microchip KSZ9031RNXCA PHY supporting >> RGMII-ID. >> >> TODO: Verify if manual adjustment of the RX internal delay is needed. If >> yes, add the mdio & phy sub-nodes. > > Sorry for being late here. I've tested that removing the mdio and phy nodes on > the the Starlight board works fine, but the rx-internal-delay-ps = <900> > property not needed on any of my VisionFive V1 boards either. No problem, thanks a lot for taking the time to help with the testing! > So I wonder why you need that on your board I noticed you have a patch 70ca054e82b5 ("net: phy: motorcomm: Disable rgmii rx delay") in your tree, hence I you please confirm the tests were done with that commit reverted? > Also in the driver patch you add support for phy-mode = "rgmii-txid", but here > you still set it to "rgmii-id", so which is it? Please try with "rgmii-id" first. I added "rgmii-txid" to have a fallback solution in case the former cannot be used. > You've alse removed the phy reset gpio on the Starlight board: > > snps,reset-gpios = <&gpio 63 GPIO_ACTIVE_LOW> > > Why? I missed this in v1 as the gmac handling was done exclusively in jh7100-common. Thanks for noticing! >> >> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx> >> --- >> arch/riscv/boot/dts/starfive/jh7100-beaglev-starlight.dts | 5 +++++ >> 1 file changed, 5 insertions(+) >> >> diff --git a/arch/riscv/boot/dts/starfive/jh7100-beaglev-starlight.dts b/arch/riscv/boot/dts/starfive/jh7100-beaglev-starlight.dts >> index 7cda3a89020a..d3f4c99d98da 100644 >> --- a/arch/riscv/boot/dts/starfive/jh7100-beaglev-starlight.dts >> +++ b/arch/riscv/boot/dts/starfive/jh7100-beaglev-starlight.dts >> @@ -11,3 +11,8 @@ / { >> model = "BeagleV Starlight Beta"; >> compatible = "beagle,beaglev-starlight-jh7100-r0", "starfive,jh7100"; >> }; >> + >> +&gmac { >> + phy-mode = "rgmii-id"; >> + status = "okay"; >> +}; > > Lastly the phy-mode and status are the same for the VF1 and Starlight boards, > so why can't these be set in the jh7100-common.dtsi? I wasn't sure "rgmii-id" can be used for both boards and I didn't want to unconditionally enable gmac on Starlight before getting a confirmation that this actually works. If there is no way to make it working with "rgmii-id" (w/ or w/o adjusting rx-internal-delay-ps), than we should switch to "rgmii-txid". Thanks, Cristian