After change PYH 88E1512 to RTL8211FI-CG, eth0 can not get ip address

[848145724]

Dear All:

• 1; In our custom board with Jetson AGX XAVIER SOM, we replace 88E1512 phy to RTL8211FI-CG, Software version : JetPack4.6_R32.6.1.
• 2: we change dtb file
  
  
• 3: We found that:
  • 3.1: system support RTL8211F.
    ls /sys/bus/mdio_bus/drivers:
    
    
  • 3.2 ifconfig eth0: only TX works .And cannot get dhcp ip address . ping is failure when set static ip address.
    
    
    
    3.3: according to dmesg log, eth0 is up.
    
    

4: What should I do to enable eth0. I will appreciative.

[kayccc]

Sorry for the late response, is this still an issue to support? Thanks

[848145724]

Hi, Kayccc
Anyway, thank you very much for your attention.
Yes, it is exist.
I noticed that Jetson XAVIER NX also set RTL8211F as eqos@2490000 phy. So could you provide the datasheet of this part for our reference?

[WayneWWW]

We cannot provide datasheet. Please contact vendor for this info.

You can refer to the devicetree of jetosn NX for this part.

[848145724]

• 1: After refer to the devicetree of jetson xavier nx, the issue is same with before.
  

  

• 2 : I copy Jetson nx phy drive /kernel-4.9/drives/net/phy/realtek,c to Jetson agx, the issue is same with before.

• 3: The following picture is our schematic diagram, could you provide some advices?
  

  

• 4: Refer this schematic diagram design, RTL8211F in other platform devices works normal.

We detect that: TX and RX have no signal, mdio has only once signal by the oscilloscope.

[peng.jack3]

I am also replacing this part, Is there a solution?

[848145724]

It was a hardware problem, and we solved it by self-checking the hardware