[coreboot] errata#89 patch for Family 0Fh Prozessors

[Josef Kellermann]

This patch fixes a potential system hang.
Don't know why this patch isn't included if 'CONFIG_K8_REV_F_SUPPORT == 1'.

Signed-off-by: Josef Kellermann  <mailto://se...@arcor.de><se...@arcor.de>  
<mailto://se...@arcor.de>


Index: src/cpu/amd/model_fxx/model_fxx_init.c
===================================================================
--- src/cpu/amd/model_fxx/model_fxx_init.c      (Revision 6326)
+++ src/cpu/amd/model_fxx/model_fxx_init.c      (Arbeitskopie)
@@ -452,6 +452,10 @@
        wrmsr(HWCR_MSR, msr);
 
 #if CONFIG_K8_REV_F_SUPPORT == 1
+       /* Erratum 89 */
+       msr = rdmsr(NB_CFG_MSR);
+       msr.lo |= 1 << 3; // Erratum 89
+       wrmsr(NB_CFG_MSR, msr); 
        /* Erratum 131... */
        msr = rdmsr(NB_CFG_MSR);
        msr.lo |= 1 << 20;

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