On Thu, 2004-10-28 at 08:22, Eric W. Biederman wrote:
"Ronald G. Minnich" email@example.com writes:
On Wed, 27 Oct 2004, Eric W. Biederman wrote:
The other trick that helps is to hard code the memory configuration and put that in the fallback image. And then use a second copy of linuxbios to develop new code. At least that way you don't need to swap the rom chip.
some times that works, sometimes not. On the i855gm, hardcoding did not seem to work -- there's something dynamic you have to do, evidently, and just setting in the registers was not it.
I guess what I meant was that you can hard code the values that only change when you swap dimms. This means you don't initially need to look at SPD and all of that jazz when you first start bringing your memory up.
I guess this is the most diffcult part. Once you know how to issue the JEDEC command to the DRAM chip via the memory controller, you have no problem to program the size info in the controller.
Eric _______________________________________________ Linuxbios mailing list Linuxbios@clustermatic.org http://www.clustermatic.org/mailman/listinfo/linuxbios