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Re: [Qemu-ppc] [U-Boot] [PATCH 1/3] PPC 85xx: Detect e500v2 / e500mc dur
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From: |
Scott Wood |
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Subject: |
Re: [Qemu-ppc] [U-Boot] [PATCH 1/3] PPC 85xx: Detect e500v2 / e500mc during runtime |
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Date: |
Thu, 6 Mar 2014 11:13:29 -0600 |
On Thu, 2014-03-06 at 09:56 -0600, Kumar Gala wrote:
> On Mar 6, 2014, at 9:50 AM, Scott Wood <address@hidden> wrote:
>
> > This has nothing to do with U-Boot's own exception handlers -- this is
> > what U-Boot is currently doing just prior to entering the OS.
> >
> > -Scott
> >
>
> Oh, right. Did e6500 move to fixed IVORs? If not this can probably be
> removed as I doubt there will be a new core from FSL that would require
> this. It was meant as a transition for any OS that cared (if my memory
> serves me).
e6500 does not have fixed IVORs. I'm not sure why it would matter even
if it did. An OS should know whether it is running on a chip with fixed
IVORs and behave appropriately, rather than assuming the bootloader
fixes things up on older chips to look like newer chips.
-Scott