Changing the PHY on AGX board

[ashik.p]

Hi,
I am trying to replace the PHY on AGX devkit with ksz9896/9897.The ksz9897 i have connected over RGMII interface on port 6 and SPI bus.

I have followed Replace PHY on microchip switch KSZ9896 and added the driver. The driver probe is completed and I am able to read and write to the ethernet phy using spi.

But I am facing this error:

[    8.624764] eth0: eqos_init_phy: Could not attach to PHY
[    8.624952] net eth0: eqos_open: Cannot attach to PHY (error: -19)

and there is no eth0 detected while issuing the ifconfig command

What is it causing this issue?
While going through the driver I found it is coming from the drv.c->mdio.c in eqos directory. But I am not using mdio here, instead I am using spi.Then why is the driver throwing this error?

Thanks,
Ashik P.

[WayneWWW]

Sorry, no experience on this.

The last post on this thread is also using the SPI bus. But some drivers/tools are required from vendor side.

Replace PHY on microchip switch KSZ9896

Our network via KSZ9896 worked after the following actions: Configuring the device tree. SPI bus connections to KSZ9896. Installing the KSZ9896 driver. Configuring KSZ9896 via the reg_bin utility. Files in atta0.zip (1.9 MB) chment. The device tree must be adapted to your board.