Hello folks,
We are trying to bring up RGMII with Marvell Switch 88E6172 on our customer board. But we are able to make auto negotiation works.
The 4 ports of Marvell switch can pass through to each other. But the RGMII between Marvel switch and AGX Orin seems not working.
root@tegra-ubuntu:/home/nvidia# mii-tool eth0
eth0: autonegotiation failed, link ok
root@tegra-ubuntu:/home/nvidia# dmesg | grep 2310000
[ 13.904151] nvethernet 2310000.ethernet: Adding to iommu group 53
[ 13.910579] nvethernet 2310000.ethernet: failed to read skip mac reset flag, default 0
[ 13.918766] nvethernet 2310000.ethernet: failed to read MDIO address
[ 13.925477] nvethernet 2310000.ethernet: setting to default DMA bit mask
[ 13.932411] nvethernet 2310000.ethernet: max-platform-mtu DT entry missing, setting default 1500
[ 13.941945] nvethernet 2310000.ethernet: failed to get phy reset gpio error: -2
[ 13.952603] nvethernet 2310000.ethernet: Ethernet MAC address: 48:b0:2d:91:51:88
[ 13.960636] nvethernet 2310000.ethernet: Macsec not enabled
[ 13.966372] nvethernet 2310000.ethernet: Macsec: Reduced MTU: 1466 Max: 1500
[ 13.975085] nvethernet 2310000.ethernet: eth0 (HW ver: 53) created with 8 DMA channels
[ 16.298076] mv88e6085 2310000.ethernet:00: switch 0x1720 detected: Marvell 88E6172, revision 1
[ 16.475162] mv88e6085: probe of 2310000.ethernet:00 failed with error -22
[ 16.600308] nvethernet 2310000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
And more info about our current custom board are
-
dmesg
dmesg.log (77.0 KB) -
ifconfig eth0 only TX, no RX
-
Marvell switch driver is enabled
And our device tree is as follows
eth0:ethernet@2310000 {
status = "okay";
nvidia,mac-addr-idx = <0>;
nvidia,pause_frames = <0>;
phy-mode = "rgmii-id";
fixed-link {
speed = <1000>;
full-duplex;
};
mdio0:mdio {
status = "okay";
compatible = "nvidia,eqos-mdio";
#address-cells = <1>;
#size-cells = <0>;
switch0: switch@0 {
compatible = "marvell,mv88e6085";
#address-cells = <0>;
#size-cells = <0>;
reg = <0>;
dsa,member = <0 0>;
status = "okay";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
label = "lan0";
};
port@1 {
reg = <1>;
label = "lan1";
};
port@2 {
reg = <2>;
label = "lan2";
};
port@3 {
reg = <3>;
label = "lan3";
};
port@4 {
reg = <4>;
label = "lan4";
};
switch0port5:port@5 {
reg = <5>;
label = "cpu";
phy-mode = "rgmii-id";
fixed-link {
speed = <1000>;
full-duplex;
};
};
};
};
};
};
We are grateful for any feedback or advices. Thanks!
