2011/4/1 Keith Hui buu...@gmail.com:
ping?
Adds support for initializing registered SDRAM modules on Intel 440BX
northbridge.
Drops unneeded romcc-inspired programming tricks.
Only set nbxecc flags (see 440BX datasheet, page 3-16) when a non-ECC
module has been detected
in a row via SPD;
On Wed, Apr 6, 2011 at 6:19 PM, Idwer Vollering vid...@gmail.com wrote:
Can you add a #define for SPD_MEMORY_TYPE_REGISTERED_SDRAM to
src/include/spd.h as well ? If that is relevant to do, ofcourse.
There isn't a separate registered SDRAM type under SPD_MEMORY_TYPE.
The SDRAM module being
ping?
On Wed, Mar 30, 2011 at 11:38 PM, Keith Hui buu...@gmail.com wrote:
On Tue, Mar 29, 2011 at 5:34 PM, Stefan Reinauer
stefan.reina...@coreboot.org wrote:
* Keith Hui buu...@gmail.com [110329 06:11]:
+ if ((edosd 0x84) == 0x84) {
+ edosd = 0x10; // Registered SDRAM
+ }
On Tue, Mar 29, 2011 at 5:34 PM, Stefan Reinauer
stefan.reina...@coreboot.org wrote:
* Keith Hui buu...@gmail.com [110329 06:11]:
+ if ((edosd 0x84) == 0x84) {
+ edosd = 0x10; // Registered SDRAM
+ } else {
+ // Clear [4:3] in case it's EDO.
+ edosd = 0x07;
* Keith Hui buu...@gmail.com [110329 06:11]:
+ if ((edosd 0x84) == 0x84) {
+ edosd = 0x10; // Registered SDRAM
+ } else {
+ // Clear [4:3] in case it's EDO.
+ edosd = 0x07;
+// } else if (edosd 0x02) {
Besides being commented out, this piece of code
+ if ((edosd 0x84) == 0x84) {
+ edosd = 0x10; // Registered SDRAM
+ } else {
+ // Clear [4:3] in case it's EDO.
+ edosd = 0x07;
+// } else if (edosd 0x02) {
Besides being commented out, this piece of code would never be executed,
as there already is an else
See attached for patch with sign-off inside. Boot tested on ASUS
P2B-LS with both regular and registered ECC modules.
Now that I got some registered ECC modules in, I am able to code up
this patch to allow registered SDRAM to initialize. This is needed in
advance of ECC support because most ECC
On 3/27/11 5:36 AM, Keith Hui wrote:
Adds support for initializing registered SDRAM modules on Intel 440BX
northbridge.
Signed-off-by: Keith Hui buu...@gmail.com
Index: src/northbridge/intel/i440bx/raminit.c
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