| Message ID | 20241225-support_10m100m-v1-3-4b52ef48b488@quicinc.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Support tuning the RX sampling swap of the MAC. | expand |
On Wed, Dec 25, 2024 at 06:04:47PM +0800, Yijie Yang wrote: > The timing of sampling at the RX side for qcs615-ride needs adjustment. > It varies from board to board. > > Signed-off-by: Yijie Yang <quic_yijiyang@quicinc.com> > --- > arch/arm64/boot/dts/qcom/qcs615-ride.dts | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm64/boot/dts/qcom/qcs615-ride.dts b/arch/arm64/boot/dts/qcom/qcs615-ride.dts > index bfb5de4a0d440efece993dbf7a0001e001d5469b..f22a4a0b247a09bd1057b66203a34b666cd119a8 100644 > --- a/arch/arm64/boot/dts/qcom/qcs615-ride.dts > +++ b/arch/arm64/boot/dts/qcom/qcs615-ride.dts > @@ -206,6 +206,7 @@ ðernet { > phy-handle = <&rgmii_phy>; > phy-mode = "rgmii"; > max-speed = <1000>; > + qcom,rx-prog-swap; I notice this board still has messed up rgmii delays, using phy-mode = "rgmii", not "rgmii-id". How does com,rx-prog-swap interact with rgmii delays? Is the sample point logic before or after the rgmii delay logic in the MAC clock pipeline? I think i also questioned max-speed = <1000>. Has this arch/arm64/boot/dts/qcom/qcs615-ride.dts been merged? Andrew
On 2024-12-26 01:38, Andrew Lunn wrote: > On Wed, Dec 25, 2024 at 06:04:47PM +0800, Yijie Yang wrote: >> The timing of sampling at the RX side for qcs615-ride needs adjustment. >> It varies from board to board. >> >> Signed-off-by: Yijie Yang <quic_yijiyang@quicinc.com> >> --- >> arch/arm64/boot/dts/qcom/qcs615-ride.dts | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/arch/arm64/boot/dts/qcom/qcs615-ride.dts b/arch/arm64/boot/dts/qcom/qcs615-ride.dts >> index bfb5de4a0d440efece993dbf7a0001e001d5469b..f22a4a0b247a09bd1057b66203a34b666cd119a8 100644 >> --- a/arch/arm64/boot/dts/qcom/qcs615-ride.dts >> +++ b/arch/arm64/boot/dts/qcom/qcs615-ride.dts >> @@ -206,6 +206,7 @@ ðernet { >> phy-handle = <&rgmii_phy>; >> phy-mode = "rgmii"; >> max-speed = <1000>; >> + qcom,rx-prog-swap; > > I notice this board still has messed up rgmii delays, using phy-mode = > "rgmii", not "rgmii-id". How does com,rx-prog-swap interact with rgmii > delays? Is the sample point logic before or after the rgmii delay > logic in the MAC clock pipeline? This patch set relies on an earlier version that has RGMII issues. The latter is still undergoing coding and verification. I will update this patch set once the RGMII issues are resolved and uploaded. > > I think i also questioned max-speed = <1000>. Has this > arch/arm64/boot/dts/qcom/qcs615-ride.dts been merged? This will also be updated in the next version. > > Andrew
diff --git a/arch/arm64/boot/dts/qcom/qcs615-ride.dts b/arch/arm64/boot/dts/qcom/qcs615-ride.dts index bfb5de4a0d440efece993dbf7a0001e001d5469b..f22a4a0b247a09bd1057b66203a34b666cd119a8 100644 --- a/arch/arm64/boot/dts/qcom/qcs615-ride.dts +++ b/arch/arm64/boot/dts/qcom/qcs615-ride.dts @@ -206,6 +206,7 @@ ðernet { phy-handle = <&rgmii_phy>; phy-mode = "rgmii"; max-speed = <1000>; + qcom,rx-prog-swap; snps,mtl-rx-config = <&mtl_rx_setup>; snps,mtl-tx-config = <&mtl_tx_setup>;
The timing of sampling at the RX side for qcs615-ride needs adjustment. It varies from board to board. Signed-off-by: Yijie Yang <quic_yijiyang@quicinc.com> --- arch/arm64/boot/dts/qcom/qcs615-ride.dts | 1 + 1 file changed, 1 insertion(+)