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Original question:

DRA77P: DRA77p custom board bring up

DRA77P: Changes to be applied in driver for ethernet 1

Padmesh K Gopi
Expert 2610 points
Part Number: DRA77P
Other Parts Discussed in Thread: PCF8575

Hi,

As part of the custom board bring up, we have used the ethernet 1 for for dra77xp processor. On referring the schematics of the DRA77Xp EVM, the signal EXP_ETH1_RSTn is taken from IO expander PCF8575.

But the change we have made is that we have taken this signa EXP_ETH1_RSTnl directly from the ball pin C14 (mcasp2_axr2/mcasp3_axr2/vin6a_d5/pr2_mii0_rxd0/xx/gpio6_8) of the processor.

Ths issue is as we run the uboot, it comes with the message Could not find PHY. We are trying to make changes by changing the driver implementation. As of now, I am trying to make gpio6_8 pin high

I have created the corresponding corresponding script from pinmux tool and added it to mux_data.h file.

What device tree files are to be changed and what are the changes to be done ?

Regards,

Padmesh