[U-Boot-Users] PCI stopped working on MPC8343

[Stefan Roese]

On Friday 18 April 2008, Larry Johnson wrote:
> I was just about to post on I problem I belatedly found with PCI on our
> Korat PPC400EPx board.  (I believe the same problem exists on the
> Sequoia board, but have not proved it.)  What appears to have broken it
> was the following patch (I got to use "git bisect" for the first time):

> <patch>
> commit 55774b512fdf63c0516d441cc5da7c54bbffb7f2
> Author: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
> Date:   Fri Mar 7 16:04:25 2008 +0900
>
>     pci: Add CONFIG_PCI_SKIP_HOST_BRIDGE config option

<snip>

> The patch changes the behavior of the code _unless_
> CONFIG_PCI_SKIP_HOST_BRIDGE is defined.  Defining that switch in the
> Korat configuration fixes the problem.  The MPC8323ERDB configuration
> has also been patched to add the switch, so maybe this is is the cause
> of your problem as well.
>
> I was going to submit the patch for Korat, but then decided I'd first
> like to ask Nobuhiro and the group whether it might not be better to
> change the occurrences of
>
> #if defined(CONFIG_PCI_SKIP_HOST_BRIDGE)
>
> in "drivers/pci/pci.c" to
>
> #if !defined(CONFIG_PCI_NO_SKIP_HOST_BRIDGE)
>
> That would allow those boards that need to patch to specify it
> explicity, while leaving the default functionality unchanged.
>
> Comments?

Yes, I totally agree. Patches should *not* change the default behavior. We 
should change it as you suggested. Sorry, I must have missed this.

Nobuhiro, could you please send a new patch to fix this problem?

Thanks.

Best regards,
Stefan

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