[coreboot] [PATCH] LAR: Don't clobber top 8 bytes

Carl-Daniel Hailfinger c-d.hailfinger.devel.2006 at gmx.net
Sat Dec 6 13:52:56 CET 2008

On 05.12.2008 09:53, Corey Osgood wrote:
> On Wed, Dec 3, 2008 at 5:27 PM, ron minnich <rminnich at gmail.com> wrote:
>> In fact, if anything, can we please fix the cn700?
> Working on it!
> Current status: a GPIO line isn't getting disabled for some reason (even
> though it's disabled several times), and the damn chipset reboots when the
> timer it controls expires. Once the board reboots, something isn't working
> correctly, presumably CAR, and the LAR can't be read from. I'm working from
> revision 1010, but I think it's the same status in current svn. I'll be
> spending more time with it this weekend, from the sound of the weather
> report I won't be able to do much else anyways :p

Could you give me a little more verbose info? If CAR is not working,
printk should not work (or at least crash directly after the first
call). Having the ROM not mapped also looks weird.
I don't doubt your description, I'm just trying to understand it.
In theory, the different cache behaviour of the C7 on poweron could be
related... can you try issuing a reset from inside coreboot and check if
the same problem appears after your deliberate reset? Oh, and please
check how the processor behaves if you press the reset button. I hope to
find a pattern here.



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