SJA1105R link status to down

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SJA1105R link status to down

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qingzhou
Contributor I


SOC: rockchip 3568
MAC Switch: SJA1105R
Exterior PHY: YT8011AN
kernel:linux 4.19


Connection diagram can be found in the attachment diagram1.jpg and diagram2.jpg

Connection Description:
Our SOC uses RGMII to connect a five port switch chip SJA1105R,
Switch Port 0 is connected to SOC, Port 1 is connected to phy (YT8011AN), Port 2 is connected to phy (YT8011AN), and Ports 3 and 4 are not used.
Port 1's phy is connected to the network testing device through a network cable


Problem description:
After unplugging the network cable, the ifconfig p1 port appears without any special printing.see lixd-sw1 not connected to network cable.txt
The ifconfig p1 port does not appear when plugged in the network cable, and it keeps reporting link down.See lixd-sw(1) - connected to network cable.txt

I don't know how to solve it.

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PetrS
NXP TechSupport
NXP TechSupport

Hi,

could you please provide more information on the used configuration:

  1. How are the Ethernet interfaces configured? Can we get the files?
  2. Which drivers and versions are used?

Also, do port 1 and port 2 show the exact same behavior?

BR, Petr

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