[coreboot] [PATCH] v3: fix bugs in Geode LX RAMinit

Mart Raudsepp mart.raudsepp at artecdesign.ee
Sat Apr 19 00:23:05 CEST 2008

> On Fri, Apr 18, 2008 at 3:09 PM, Mart Raudsepp
> <mart.raudsepp at artecdesign.ee> wrote:
>>  With the help of the LPC dongle for instance?
>>  I typically rarely care about what is on the onboard flash - I only
>> burn
>>  something different on there for convenience if I need to boot the same
>>  firmware many times in a row, which doesn't happen exactly often during
>>  coreboot testing. Other times, just booting off the dongle.
> I would feel much more comfortable having something that does not
> require cracking the case open. how do we do that? I think etherboot
> more and more is the answer. Even though I don't really like it.

I've been also able to get the dongle working with just having the small
left side of the ThinCan removed, but I don't deal with boards that are in
cases not that often either. The LPC connection is on the very side, so
the cable fits in there with some twisting, but that's probably more risky
than having a bare mainboard, unless you have a header soldered on the LPC
connection, in which case I'm not sure if the ribbon cable can be attached
without removing the top of the case. Btw, if the top part of the case is
removed, you just need to pay attention to the bottom - the front side
supporting the front side of the board is gone then and could shortcircuit
things from the bottom, so need a paper between the case and board or
something like that if don't want to remove the whole case.

Without the dongle, you obviously need a way to flash the onboard ROM
(which could wear out with lots of work), and flashrom since rev3110 or so
should work great for that. So whatever means you can do to get into a
Linux system that just has msr/mem support and flashrom, be it over
etherboot, included in the dongle in 4MB memory mode (v3 got a patch
committed recently to enable that), residing in the NAND flash, or
whatever else can be conceived and booted with whatever onboard ROM is
burnt in before reflashing :)

Mart Raudsepp
Artec Design LLC

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