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yaml --- r: 372272 b: refs/heads/master c: 118aee4 h: refs/heads/master v: v3
git-mirror · Mar 12, 2013 · b1ea566 · b1ea566
1 parent 97da3fd
commit b1ea566
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Showing 2 changed files with 16 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: cccd70455c351604d0a9075d35298ed4ff66dab3
+refs/heads/master: 118aee4dd91cf3c0b9546788ef66b65d3e9e31b1
diff --git a/trunk/drivers/clocksource/sh_cmt.c b/trunk/drivers/clocksource/sh_cmt.c
@@ -66,6 +66,21 @@ struct sh_cmt_priv {
 			    unsigned long value);
 };
 
+/* Examples of supported CMT timer register layouts and I/O access widths:
+ *
+ * "16-bit counter and 16-bit control" as found on sh7263:
+ * CMSTR 0xfffec000 16-bit
+ * CMCSR 0xfffec002 16-bit
+ * CMCNT 0xfffec004 16-bit
+ * CMCOR 0xfffec006 16-bit
+ *
+ * "32-bit counter and 16-bit control" as found on sh7372, sh73a0, r8a7740:
+ * CMSTR 0xffca0000 16-bit
+ * CMCSR 0xffca0060 16-bit
+ * CMCNT 0xffca0064 32-bit
+ * CMCOR 0xffca0068 32-bit
+ */
+
 static unsigned long sh_cmt_read16(void __iomem *base, unsigned long offs)
 {
 	return ioread16(base + (offs << 1));