linux board port am335x

Laurens Miers

Hi,

I'm trying to port linux to a custom board loosely based on the am335x EVM. I got u-boot working and when it's trying to unpack the kernel the following message keeps coming up :

ti81xx_interrupt 1146: VBUS error workaround (delay coming)

For u boot to work I had to:

* set the clock from 24 Mhz to 26 Mhz

* configure the pinmux

* configure DDR3 interface

I suspect I have to do something similar for linux but I can't seem to find a good starting point in the ti wiki.

Thanks in advance

over 11 years ago

0 Laurens Miers over 11 years ago

Intellectual 640 points

I forgot one thing:

My board doesn't have an EEPROM so I think I will have to work around this too.

0 Biser Gatchev-XID over 11 years ago in reply to Laurens Miers

TI__Guru**** 393215 points

The message ‘VBUS error workaround (delay coming)’ is USB related. It's telling that a VBUS error happened and then delay to retry the session. Do you have anything plugged into one of your USB ports?

0 Laurens Miers over 11 years ago in reply to Biser Gatchev-XID

Intellectual 640 points

No , I haven't. But I was able to solve the problem by using the linux version in the board-port-labs directory. Is this because this linux version doesn't have USB drivers?

0 Biser Gatchev-XID over 11 years ago in reply to Laurens Miers

TI__Guru**** 393215 points

Possibly, I haven't seen it and don't know for sure.

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linux board port am335x