[commit] r6407 - trunk/src/northbridge/amd/amdht

[repository service]

Author: mjones
Date: Mon Feb 28 04:35:43 2011
New Revision: 6407
URL: https://tracker.coreboot.org/trac/coreboot/changeset/6407

Log:
Improving BKDG implementation of P-states,
CPU and northbridge frequency and voltage
handling for Fam 10 in SVI mode.

bits 13 - 15 of F3xd4 (StutterScrubEn, CacheFlushImmOnAllHalt and MTC1eEn
are reserved for revisions D0 and earlier, so whe should not set them
to 0 in fidvid.c config_clk_power_ctrl_reg0(...), called from prep_fid_change.
For revisions > D0 (when we support them) it is ok not ot clear them,
because they are documented as 0 on reset. bit 12 should be left alone
according to BKDG. Should I set 11:8 ClkRampHystSel to 0 in the mask
too, just to indicate we're touching them ? We'll OR them to 1111 anyway...

Signed-off-by: Xavi Drudis Ferran 
Acked-by: Marc Jones

Modified:
   trunk/src/northbridge/amd/amdht/AsPsDefs.h

Modified: trunk/src/northbridge/amd/amdht/AsPsDefs.h
==============================================================================
--- trunk/src/northbridge/amd/amdht/AsPsDefs.h	Mon Feb 28 04:32:23 2011	(r6406)
+++ trunk/src/northbridge/amd/amdht/AsPsDefs.h	Mon Feb 28 04:35:43 2011	(r6407)
@@ -111,7 +111,7 @@
 #define STC_PS_LMT_MASK 0x8fffffff	/* StcPstateLimit mask off */

#define CPTC0 0x0d4			/* Clock Power/Timing Control0 Register*/
-#define CPTC0_MASK 0x000c0fff		/* Reset mask for this register */
+#define CPTC0_MASK 0x000cffff		/* Reset mask for this register */
 #define CPTC0_NBFID_MASK 0xffffffe0	/* NbFid mask off for this register */
 #define CPTC0_NBFID_MON 0x1f		/* NbFid mask on for this register */
 #define NB_FID_EN 0x20			/* NbFidEn bit ON */