[coreboot] [PATCH] Thomson IP1000 onboard memory selection

Joseph Smith joe at settoplinux.org
Fri Feb 12 20:14:49 CET 2010

On 02/12/2010 01:50 PM, Peter Stuge wrote:
> Joseph Smith wrote:
>>>>> Is there no way to auto-detect it?
>>>> Nope, The onboard memory does not have SPD, hence the spd array.
>>> First configure 128, then test if 65MB can store data, if not then
>>> fall back to 64.
>> I guess, but that seems like alot of wasted boot time.....
> What are the numbers? Ie. how long does it take to do one MC config,
> for 64 or 128?
Well you would have to go though the whole raminit process to setup 128 
then do a read/write at 65MB, if that fails go through the whole raminit 
process again and setup 64. So basically raminit would take twice as 

Joseph Smith

More information about the coreboot mailing list