[TDA4VM] Changing GPIO of MCU Ethernet PHY reset

HJ Kim

Expert 1460 points

Hi,

GPIO of MCU Ethernet PHY reset was changed from WKUP_GPIO0_3 to WKUP_GPIO0_6 in our custom TDA4 board.

Where should I change its code?
U-Boot and kernel if necessary?

Regards,
HJ Kim

0 Nikhil Devshatwar over 6 years ago

Hi Kim,

I checked in the Linux kernel and u-boot, Software is not really configuring this GPIO pin.

This maybe because the board has a PULL UP.

If you are following similar design, you should not be required to configure the same.

However, if you want to set the GPIO unconditionally to HIGH/LOW, You can describe that in the GPIO hog DT entry.

Regards,

Nikhil D

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