[coreboot] [PATCH] v3: VIA C7 CAR

[Vincent Legoll]

On Sat, Oct 11, 2008 at 5:37 PM, ron minnich <rminnich at gmail.com> wrote:
> On Fri, Oct 10, 2008 at 10:18 PM, Peter Stuge <peter at stuge.se> wrote:
>
>> XIP could never perform better than fetching from cache except if the
>> cache is broken.
>
> If cache is broken, CAR is not going to work very well, we have no
> stack --> we're not going to boot anyway ...
>
> I think we let the guys who make the chips deal with broken cache issues.
>
> I am unable to see the need for XIP at this point but I am willing to
> be shown that I am wrong.

Would using a small bit of XIP code enable us to detect broken cache
and report that fact (post code, beep code, serial console printk) ?

Knowing that it's the CPU that is broken would allow one not to throw
away the other good parts of the computer...

-- 
Vincent Legoll