[coreboot] [PATCH] New config option for 440BX northbridge

Joseph Smith joe at settoplinux.org
Sat Mar 13 01:08:51 CET 2010


On 03/12/2010 06:07 PM, ron minnich wrote:
> On Fri, Mar 12, 2010 at 2:55 PM, Keith Hui<buurin at gmail.com>  wrote:
>
>> If we go through all the Kconfigs for all 440BX boards and identify all that
>> have 4 slots, and enter this setting for all of them, done before my 440BX
>> ram init code is ready. ;-) There is a reason for expert mode, no?
>
> I think this goes beyond expert mode. It seems to me it is a setting
> that can render the machine unbootable if configured incorrectly. Even
> for experts, I don't think it should be visible in Kconfig.
>
has anyone even tested this yet???

 >> slot4_detect = (spd_read_byte((DIMM_SPD_BASE + 3), SPD_MEMORY_TYPE);
 >>
 >> if (slot4_detect != 0xff) {
 >>
 >>      /* We have 4 slots */
 >>      ----Set bit 4 in SDRAMPWR----
 >>      #define DIMM_SOCKETS 4
 >> } else {
 >>
 >>      /* We have 3 slots */
 >>      ----Set bit 4 in SDRAMPWR----
 >>      #define DIMM_SOCKETS 3
 >> }
 >>


-- 
Thanks,
Joseph Smith
Set-Top-Linux
www.settoplinux.org




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