Dear Team,
This is Dhaval Shah from VVDN Technologies.
Actualy we have used DP83867IRRGZ PHY IC in hour product. We are able to run Ethernet on 100Mbps with GTX and RX clock 25 Mhz but 1000Mbs is not running.
We started to bring up the VVDN carrier board with the Kria K26 SOM. The board has successfully booted up, and the essential hardware is operational. We are having trouble getting the Ethernet connectivity to work at 1G. It is running at 100 Mbps instead of 1 Gbps.
We are using TI,DP83867IRRGZ phy IC which is interfaced to gem1 pins of zynq ultrascale+ SoC and phy mode is phy mode configured in RGMII interface. One observation is that for the GTX clock (Pin 29) we are getting only 25Mhz instead of 125MHZ and RX clock (Pin 32) is 25Mhz at that that it is working on 100mbps.
While we tried to configure it for 1000Mbps at that time, the GTX clock comes 125 Mhz but the RX clock is 2.5Mhz only. From the board when we check the carrier status on the board it is showing as 0, meaning there is no link established with the device. Please find the ethtool logs of the ethernet interface. xilinx-k26-som-20221:~$ cat /sys/class/net/eth0/carrier 0 please let us know if you require more information from our side and also let us know how we can debug the 1000mbps issue further
Here I attached our DP83867IRRGZ schematic for the refence.
Waiting for your sonnets response.
xilinx-k26-som-20221:~$ cat /sys/class/net/eth0/speed
1000
xilinx-k26-som-20221:~$ sudo ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supported pause frame use: Transmit-only
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised pause frame use: Transmit-only
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Auto-negotiation: on
master-slave cfg: forced master
master-slave status: resolution error
Port: Twisted Pair
PHYAD: 1
Transceiver: external
MDI-X: Unknown
Supports Wake-on: a
Wake-on: d
Link detected: no
xilinx-k26-som-20221:~$
