On 11/11/2010 01:24 PM, Andre Schwarz wrote:
Kim, Timur,
some comments on this from your side would really help !
The issue can be summarized like this :
- MPC8377 based board is basically running fine with both U-Boot and Linux.
- Activating USB support within U-Boot leads to *very* early crash : No console output - not even PCI clocks enabled.
- Within Linux USB is working without problems, i.e. there's no hardware
issue.
I have an SMSC USB3300 PHY connected via ULPI and a self powered SMSC 2514 1:4 Hub. This is exactly the same as on mvblm7 board (=MPC8343).
This behaviour reminds me of e.g. one or more missing sync instructions during early init as discussed with Jocke in the past weeks.
It is very unlikely that I'm the only one facing this problem.
got it - line 330 in arch/powerpc/cpu/mpc83xx/cpu_init.c does some EHCI configs masked by
#ifndef CONFIG_MPC834x
Removing this makes the board work again.
It still hangs during "usb start" but this is most propably due to missing initialization.
Will have a look and send a proper patch.
After all I do like mondays ;-)
Cheers, André
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