[coreboot] msrtool

Tom Sylla tsylla at gmail.com
Sun Jul 13 16:58:43 CEST 2008

ron minnich wrote:
>> no. Here's my thinking. It could decode those bits and then say,
>> "This is appropriate to an UNTERMINATED bus with ONE row of DIMMS and
>> 4 devices. "
>> "The DRAM hardware is configured for CL 2.5'

hrm, you don't *need* to decode bits for that. If the value is 
"0xF2F100FF 0x56960004", it is unterminated. That's it. Other values of 
that 64 bit register mean different configurations.

> in fact I'm actually working with a mobo vendor RIGHT NOW to create
> this type of 'what are the settings' tool for barcelona so we can
> track down a bug. Would that we had it.

Is it booting? AMD provides a couple of tools to to check registers 
already. One of them is more than just a parser, and actually verifies 
all the relevant settings against "what they should be". Have you tried 
those tools? We try to use those tools on any BIOS release version, and 
especially whenever something major changes, like AGESA.

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