From: Frieder Schrempf frieder.schrempf@kontron.de
commit 0b28c41e3c951ea3d4f012cfa9da5ebd6512cf6e upstream.
Previously we falsely relied on the PHY driver to unconditionally enable the internal RX delay. Since the following fix for the PHY driver this is not the case anymore:
commit 7b005a1742be ("net: phy: mscc: configure both RX and TX internal delays for RGMII")
In order to enable the delay we need to set the connection type to "rgmii-rxid". Without the RX delay the ethernet is not functional at all.
Fixes: 8668d8b2e67f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards") Cc: stable@vger.kernel.org Signed-off-by: Frieder Schrempf frieder.schrempf@kontron.de Signed-off-by: Shawn Guo shawnguo@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts @@ -113,7 +113,7 @@ &fec1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_enet>; - phy-connection-type = "rgmii"; + phy-connection-type = "rgmii-rxid"; phy-handle = <ðphy>; status = "okay";