imx8mp-WOL

[shivashanka141]

Hi Nxp,

We are using imx8mp based SOC.

our BSP is based on kirkstone branch.

We have ethernet connected to eqos -> dp83867 & ethenet is functional.

WOL functionality is wokring fine. we are able to resume from suspend 

imx8mp :
# ethtool -s eth1 wol g
#systemctl suspend

from any other machine in LAN we are able to trigger WOL packet
#wakeonlan <ethernet mac address >

after resuming from suspend ethernet was not functional found IP was not assiged to the phy.

DTS: 

&eqos {

pinctrl-names = "default";

pinctrl-0 = <&pinctrl_eqos>;

phy-mode = "rgmii-id";

phy-handle = <&dp83867_1>;

snps,force_thresh_dma_mode;

snps,mtl-tx-config = <&mtl_tx_setup>;

snps,mtl-rx-config = <&mtl_rx_setup>;

status = "okay";

mdio {

compatible = "snps,dwmac-mdio";

#address-cells = <1>;

#size-cells = <0>;

/* TODO : RESET needed

* TODO : IRQ   needed

*/

dp83867_1: ethernet-phy@0 {

/* RGMII-1 */

compatible = "ethernet-phy-id2000.a231"; 

reg = <0>;

ti,rx-internal-delay = <DP83867_RGMIIDCTL_1_75_NS>;

ti,tx-internal-delay = <DP83867_RGMIIDCTL_1_75_NS>;

ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;

ti,min-output-impedance;

ti,dp83867-rxctrl-strap-quirk;

interrupt-parent = <&gpio4>;

interrupts = <21 IRQ_TYPE_EDGE_FALLING>;

reset-gpio = <&gpio4 22 GPIO_ACTIVE_LOW>;

reset-assert-us = <10000>;

reset-deassert-us = <80000>;

};

};

After resuming from wake on lan IP is not assigned to phy.

Attached log for refernce.

IMX8MPLUS 

[Bio_TICFSL]

Hello,

Make sure that phy0 is the one as you can check the RGMII as phymode the Ethernet MAC controller node to which the PHY is connected. The phy-handle property links the controller to its corresponding PHY node.

Regards