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ARM: dts: imx: Fix the AR803X phy-mode
Commit 6d4cd04 ("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 <[email protected]> Tested-by: Baruch Siach <[email protected]> Tested-by: Soeren Moch <[email protected]> Tested-by: Steve Twiss <[email protected]> Tested-by: Adam Thomson <[email protected]> Signed-off-by: Steve Twiss <[email protected]> Tested-by: Marc Kleine-Budde <[email protected]> Signed-off-by: Marc Kleine-Budde <[email protected]> Signed-off-by: Shawn Guo <[email protected]>
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