[ Upstream commit 032f85c9360fb1a08385c584c2c4ed114b33c260 ]
Increase the reset duration to ensure correct phy functionality. The reset duration is taken from barebox commit 52fdd510de ("ARM: dts: pfla02: use long enough reset for ethernet phy"):
Use a longer reset time for ethernet phy Micrel KSZ9031RNX. Otherwise a small percentage of modules have 'transmission timeouts' errors like
barebox@Phytec phyFLEX-i.MX6 Quad Carrier-Board:/ ifup eth0 warning: No MAC address set. Using random address 7e:94:4d:02:f8:f3 eth0: 1000Mbps full duplex link detected eth0: transmission timeout T eth0: transmission timeout T eth0: transmission timeout T eth0: transmission timeout T eth0: transmission timeout
Cc: Stefan Christ s.christ@phytec.de Cc: Christian Hemp c.hemp@phytec.de Signed-off-by: Marco Felsch m.felsch@pengutronix.de Fixes: 3180f956668e ("ARM: dts: Phytec imx6q pfla02 and pbab01 support") Signed-off-by: Shawn Guo shawnguo@kernel.org Signed-off-by: Sasha Levin (Microsoft) sashal@kernel.org --- arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi index d81b0078a100..25b0704c6054 100644 --- a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi +++ b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi @@ -89,6 +89,7 @@ pinctrl-names = "default"; pinctrl-0 = <&pinctrl_enet>; phy-mode = "rgmii"; + phy-reset-duration = <10>; /* in msecs */ phy-reset-gpios = <&gpio3 23 GPIO_ACTIVE_LOW>; phy-supply = <&vdd_eth_io_reg>; status = "disabled";