• Grygorii Strashko's avatar
    ARM: dts: am57xx: fix networking on boards with ksz9031 phy · 820f8a87
    Grygorii Strashko authored
    Since commit bcf3440c ("net: phy: micrel: add phy-mode support for the
    KSZ9031 PHY") the networking is broken on boards:
     am571x-idk
     am572x-idk
     am574x-idk
     am57xx-beagle-x15
    
    All above boards have phy-mode = "rgmii" and this 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. After above commit, the
    KSZ9031 PHY starts handling phy mode properly and disables RX delay, as
    result networking is become broken.
    
    Fix it by switching to phy-mode = "rgmii-rxid" to reflect previous
    behavior.
    
    Cc: Oleksij Rempel <o.rempel@pengutronix.de>
    Cc: Andrew Lunn <andrew@lunn.ch>
    Cc: Philippe Schenker <philippe.schenker@toradex.com>
    Fixes: bcf3440c
    
     ("net: phy: micrel: add phy-mode support for the KSZ9031 PHY")
    Reviewed-by: default avatarPhilippe Schenker <philippe.schenker@toradex.com>
    Signed-off-by: default avatarGrygorii Strashko <grygorii.strashko@ti.com>
    Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
    820f8a87
am57xx-beagle-x15-common.dtsi 11.9 KB