Author: mjones
Date: Tue Sep 14 19:28:41 2010
New Revision: 5814
URL: https://tracker.coreboot.org/trac/coreboot/changeset/5814

Log:
This patch corrects a coding error in the original implementation
of 'Erratum 343 for AMD Fam10h CPUs' (rev 4345). The original code
sets msr c001_102a bit 3 when bit 35 was intended.


Signed-off-by: Scott Duplichan <[email protected]>
Acked-by: Marc Jones <[email protected]>

Modified:
   trunk/src/cpu/amd/car/cache_as_ram.inc

Modified: trunk/src/cpu/amd/car/cache_as_ram.inc
==============================================================================
--- trunk/src/cpu/amd/car/cache_as_ram.inc      Mon Sep 13 21:31:21 2010        
(r5813)
+++ trunk/src/cpu/amd/car/cache_as_ram.inc      Tue Sep 14 19:28:41 2010        
(r5814)
@@ -129,8 +129,8 @@
        /* execute special read command for msr-register. Result is then in the 
EDX:EAX-registers (MSBs in EDX) */
        rdmsr
 
-       /* Set bit 35 to 1 in EAX */
-       bts     $35, %eax
+       /* Set bit 35 to 1 in EAX:EDX */
+       bts     $35-32, %edx
 
        /* write back the modified register EDX:EAX to the MSR specified in ECX 
*/
        wrmsr

-- 
coreboot mailing list: [email protected]
http://www.coreboot.org/mailman/listinfo/coreboot

Reply via email to