[coreboot] unsupported mb questions (amd fam10h)

[Roman Elshin]

I try to get coreboot working with asrock 880g pro3 board.

First problem: spd eprom say that memory ddr1600 capable, but it is not 
so, is there are right way to limit memory frequency at ddr1333?

Other problem, may be related as machine with broken memory are very
unpredictable: boot process stop with "It is not SB800 or SB810"
message. I try to enable sb850 by this patch, but looks like it is not
enough, most of time coreboot does not detect hdd. Sometimes  in very
rare case it is possible to boot from sata. Are sb850 supported by
coreboot?
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diff -urN a/src/southbridge/amd/sb800/early_setup.c
b/src/southbridge/amd/sb800/early_setup.c
--- a/src/southbridge/amd/sb800/early_setup.c   2012-07-14
19:00:40.000000000 +0400
+++ b/src/southbridge/amd/sb800/early_setup.c   2012-07-14
21:49:54.000000000 +0400
@@ -94,7 +94,10 @@
                rev = REV_SB800_A11;
        } else if (rev_id == 0x41) {
                rev = REV_SB800_A12;
-       } else {
+       } else if (rev_id == 0x42) {
+               rev = REV_SB800_A13;
+       }
+        else {
                die("It is not SB800 or SB810\r\n");
        }
 
diff -urN a/src/southbridge/amd/sb800/sb800.h
b/src/southbridge/amd/sb800/sb800.h
--- a/src/southbridge/amd/sb800/sb800.h 2012-07-14 19:00:40.000000000
+0400
+++ b/src/southbridge/amd/sb800/sb800.h 2012-07-14 21:49:10.000000000
+0400
@@ -48,7 +48,7 @@
 
 #define REV_SB800_A11  0x11
 #define REV_SB800_A12  0x12
-
+#define REV_SB800_A13  0x13
 
 #ifdef __PRE_RAM__
 void sb800_lpc_port80(void);
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