ARM: dts: keystone-k2g-evm: fix rgmii phy-mode for ksz9031 phy
authorGrygorii Strashko <grygorii.strashko@ti.com>
Fri, 24 Jul 2020 21:42:21 +0000 (00:42 +0300)
committerArnd Bergmann <arnd@arndb.de>
Sat, 25 Jul 2020 07:38:14 +0000 (09:38 +0200)
Since commit bcf3440c6dd7 ("net: phy: micrel: add phy-mode support for the
KSZ9031 PHY") the networking is broken on keystone-k2g-evm board.

The above board have phy-mode = "rgmii-id" and it is worked before because
KSZ9031 PHY started with default RGMII internal delays configuration (TX
off, RX on 1.2 ns) and MAC provided TX delay by default.
After above commit, the KSZ9031 PHY starts handling phy mode properly and
enables both RX and TX delays, as result networking is become broken.

Fix it by switching to phy-mode = "rgmii-rxid" to reflect previous
behavior.

Fixes: bcf3440c6dd7 ("net: phy: micrel: add phy-mode support for the KSZ9031 PHY")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Philippe Schenker <philippe.schenker@toradex.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
arch/arm/boot/dts/keystone-k2g-evm.dts

index db640bab8c1d4a150287e89bcb9aae55473fecf9..8b3d64c913d868be5d0f1eb886fe1a75bf78da89 100644 (file)
 
 &gbe0 {
        phy-handle = <&ethphy0>;
-       phy-mode = "rgmii-id";
+       phy-mode = "rgmii-rxid";
        status = "okay";
 };