[coreboot] [PATCH] Halt TCO timer on Intel 3100 chipset

Jeremy Jackson jerj at coplanar.net
Wed Apr 16 18:52:53 CEST 2008

On Wed, 2008-04-16 at 18:12 +0200, Carl-Daniel Hailfinger wrote:

> However, once that code comes anywhere near v3, expect it to explode
> badly, especially when the machine is already unable to boot and loads
> recovery code over serial. Do not expect us to sprinkle watchdog pokes

I guess there are two ways to look at the watchdog timer:

1) it's a mystery, due to lack of board schematics, board vendor
support, chip schematics, chip vendor support.  This leads to headaches
"why is this happening... it keeps resetting when we turned watchdog
off.. or is there *another* disable register we didn't get told about"
and we're battling N number of other mystery registers already.

2) armed with board schematics and chip vendor support, and perfectly
designed reset domains, we imagine a software for our sattelite that can
be upgraded from the ground, with no fear of "bricking" it, that is self
correcting etc.

so #1 is more "present reality", while #2 is something to start laying
the groundwork for.

Jeremy Jackson
Coplanar Networks
jerj at coplanar.net

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