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authorFabio Estevam <festevam@gmail.com>2019-04-03 19:12:41 -0300
committerShawn Guo <shawnguo@kernel.org>2019-04-11 10:57:56 +0800
commit0672d22a19244cdb0e5c753125c1a55a120db5d0 (patch)
treed25763c8fc95edc5348180c9474b78931b9812bb /arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
parent507aaeeef80d70c46bdf07cda49234b36c2bbdcb (diff)
ARM: dts: imx: Fix the AR803X phy-mode
Commit 6d4cd041f0af ("net: phy: at803x: disable delay only for RGMII mode") exposed an issue on imx DTS files using AR8031/AR8035 PHYs. The end result is that the boards can no longer obtain an IP address via UDHCP, for example. Quoting Andrew Lunn: "The problem here is, all the DTs were broken since day 0. However, because the PHY driver was also broken, nobody noticed and it worked. Now that the PHY driver has been fixed, all the bugs in the DTs now become an issue" To fix this problem, the phy-mode property needs to be "rgmii-id", which has the following meaning as per Documentation/devicetree/bindings/net/ethernet.txt: "RGMII with internal RX and TX delays provided by the PHY, the MAC should not add the RX or TX delays in this case)" Tested on imx6-sabresd, imx6sx-sdb and imx7d-pico boards with successfully restored networking. Based on the initial submission from Steve Twiss for the imx6qdl-sabresd. Signed-off-by: Fabio Estevam <festevam@gmail.com> Tested-by: Baruch Siach <baruch@tkos.co.il> Tested-by: Soeren Moch <smoch@web.de> Tested-by: Steve Twiss <stwiss.opensource@diasemi.com> Tested-by: Adam Thomson <Adam.Thomson@diasemi.com> Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com> Tested-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi')
-rw-r--r--arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
index fb01fa6e4224..3cae139e6396 100644
--- a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
+++ b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
@@ -216,7 +216,7 @@
&fec {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet>;
- phy-mode = "rgmii";
+ phy-mode = "rgmii-id";
phy-reset-duration = <10>;
phy-reset-gpios = <&gpio1 24 GPIO_ACTIVE_LOW>;
phy-supply = <&reg_enet>;