* [PATCH] ssb: fix core CC and REV reading
@ 2006-08-26 11:49 Michael Buesch
0 siblings, 0 replies; only message in thread
From: Michael Buesch @ 2006-08-26 11:49 UTC (permalink / raw)
To: linville-2XuSBdqkA4R54TAoqtyWWQ
Cc: netdev-u79uwXL29TY76Z2rM5mHXA, bcm43xx-dev-0fE9KPoRgkgATYTw5x5z8w
Hi John,
Please apply this to wireless-dev.
This is the correct fix for the ChipCommon issue.
--
Fix CoreCode and CoreRev extraction from coreidhi.
And yes, it's ugly. But that's how the device works.
Signed-off-by: Michael Buesch <mb-fseUSCV1ubazQB+pC5nmwQ@public•gmane.org>
Index: wireless-dev/drivers/misc/ssb.c
===================================================================
--- wireless-dev.orig/drivers/misc/ssb.c 2006-08-26 13:34:03.000000000 +0200
+++ wireless-dev/drivers/misc/ssb.c 2006-08-26 13:43:11.000000000 +0200
@@ -643,8 +643,9 @@ int ssb_probe_cores(struct ssb *ssb,
goto error;
idhi = ssb_read32(ssb, SSB_IDHIGH);
- cc = (idhi & SSB_IDHIGH_CC_MASK) >> SSB_IDHIGH_CC_SHIFT;
- rev = (idhi & SSB_IDHIGH_RC_MASK);
+ cc = (idhi & SSB_IDHIGH_CC) >> SSB_IDHIGH_CC_SHIFT;
+ rev = (idhi & SSB_IDHIGH_RCLO);
+ rev |= (idhi & SSB_IDHIGH_RCHI) >> SSB_IDHIGH_RCHI_SHIFT;
ssb->chipcommon_capabilities = 0;
ssb->nr_cores = 0;
@@ -716,9 +717,10 @@ int ssb_probe_cores(struct ssb *ssb,
core = &(ssb->cores[i]);
idhi = ssb_read32(ssb, SSB_IDHIGH);
- core->cc = (idhi & SSB_IDHIGH_CC_MASK) >> SSB_IDHIGH_CC_SHIFT;
- core->rev = (idhi & SSB_IDHIGH_RC_MASK);
- core->vendor = (idhi & SSB_IDHIGH_VC_MASK) >> SSB_IDHIGH_VC_SHIFT;
+ core->cc = (idhi & SSB_IDHIGH_CC) >> SSB_IDHIGH_CC_SHIFT;
+ core->rev = (idhi & SSB_IDHIGH_RCLO);
+ core->rev |= (idhi & SSB_IDHIGH_RCHI) >> SSB_IDHIGH_RCHI_SHIFT;
+ core->vendor = (idhi & SSB_IDHIGH_VC) >> SSB_IDHIGH_VC_SHIFT;
core->index = i;
dprintk(KERN_DEBUG PFX "Core %d found: "
Index: wireless-dev/include/linux/ssb.h
===================================================================
--- wireless-dev.orig/include/linux/ssb.h 2006-08-26 13:34:03.000000000 +0200
+++ wireless-dev/include/linux/ssb.h 2006-08-26 13:40:11.000000000 +0200
@@ -100,10 +100,12 @@
#define SSB_IDLOW_SSBREV_22 0x00000000 /* <= 2.2 */
#define SSB_IDLOW_SSBREV_23 0x10000000 /* 2.3 */
#define SSB_IDHIGH 0x0FFC /* SB Identification High */
-#define SSB_IDHIGH_RC_MASK 0x0000000f /* Revision Code */
-#define SSB_IDHIGH_CC_MASK 0x0000fff0 /* Core Code */
+#define SSB_IDHIGH_RCLO 0x0000000F /* Revision Code (low part) */
+#define SSB_IDHIGH_CC 0x00008FF0 /* Core Code */
#define SSB_IDHIGH_CC_SHIFT 4
-#define SSB_IDHIGH_VC_MASK 0xffff0000 /* Vendor Code */
+#define SSB_IDHIGH_RCHI 0x00007000 /* Revision Code (high part) */
+#define SSB_IDHIGH_RCHI_SHIFT 8 /* yes, shift 8 is right */
+#define SSB_IDHIGH_VC 0xFFFF0000 /* Vendor Code */
#define SSB_IDHIGH_VC_SHIFT 16
/* SPROM shadow area. If not otherwise noted, fields are
--
Greetings Michael.
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