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How to reset EMAC (RMII connected PHY)?

Hayden Kim
Genius 15580 points

With custom board, AM335x EMAC is RMII interfaced with a PHY device.

There is external 50MHz reference clock.

He wants to "reset" EMAC when some problem happens at PHY or Ethernet connection, while Linux is running.

(Linux kernel 3.2, from SDK 05.07.00)

So, is it possible to reset, re-initialize EMAC of AM335x?

How about "ifconfig eth0 down" and "ifconfig eth0 up" again, will this make EMAC reset?

Regards,

Hayden