[PATCH] Restore PCI IO space behind Freescale pseudo-bridge

[Kumar Gala]

On Jan 28, 2009, at 3:31 AM, Benjamin Herrenschmidt wrote:

>
>>> We are using the patch I emailed.  It's ugly in that it hard-codes  
>>> the
>>> Freescale vendor ID, but it works for us.
>>
>> I guess I'm confused what the actual breakage is beyond some printk
>> messages.
>>
>> We "fixup" the resources in fsl_pcibios_fixup_bus() so Ben's change
>> shouldn't have an impact.  Does something actually stop functioning?
>
> I think the problem comes from my patch that "detects" closed bridge
> windows, which uses the PCI_COMMAND register as a clue, and it seems
> that your bridges don't properly support IO enable in there..

Yeah but I don't see why that's an issue.

Because after your code (pcibios_uninitialized_bridge_resource) we'll  
call ppc_md.pcibios_fixup_bus() and that will fix things up.

So I'm wondering if this is really a bug or just annoying printk's  
that are confusing.

- k