diff --git a/arch/arm/mach-omap2/clock34xx_data.c b/arch/arm/mach-omap2/clock34xx_data.c
index 74930e3158e3..ea8a0fa0088c 100644
--- a/arch/arm/mach-omap2/clock34xx_data.c
+++ b/arch/arm/mach-omap2/clock34xx_data.c
@@ -3216,11 +3216,11 @@ int __init omap2_clk_init(void)
 	/* struct prcm_config *prcm; */
 	struct omap_clk *c;
 	/* u32 clkrate; */
-	u32 cpu_clkflg;
+	u32 cpu_clkflg = CK_3XXX;
 
 	if (cpu_is_omap34xx()) {
 		cpu_mask = RATE_IN_343X;
-		cpu_clkflg = CK_343X;
+		cpu_clkflg |= CK_343X;
 
 		/*
 		 * Update this if there are further clock changes between ES2
diff --git a/arch/arm/plat-omap/include/plat/clkdev_omap.h b/arch/arm/plat-omap/include/plat/clkdev_omap.h
index 35b36caf5f91..bb937f3fabed 100644
--- a/arch/arm/plat-omap/include/plat/clkdev_omap.h
+++ b/arch/arm/plat-omap/include/plat/clkdev_omap.h
@@ -25,17 +25,25 @@ struct omap_clk {
 		},			\
 	}
 
-
+/* Platform flags for the clkdev-OMAP integration code */
 #define CK_310		(1 << 0)
-#define CK_7XX		(1 << 1)
+#define CK_7XX		(1 << 1)	/* 7xx, 850 */
 #define CK_1510		(1 << 2)
-#define CK_16XX		(1 << 3)
-#define CK_243X		(1 << 4)
-#define CK_242X		(1 << 5)
-#define CK_343X		(1 << 6)
-#define CK_3430ES1	(1 << 7)
-#define CK_3430ES2	(1 << 8)
-#define CK_443X		(1 << 9)
+#define CK_16XX		(1 << 3)	/* 16xx, 17xx, 5912 */
+#define CK_242X		(1 << 4)
+#define CK_243X		(1 << 5)
+#define CK_3XXX		(1 << 6)	/* OMAP3 + AM3 common clocks*/
+#define CK_343X		(1 << 7)	/* OMAP34xx common clocks */
+#define CK_3430ES1	(1 << 8)	/* 34xxES1 only */
+#define CK_3430ES2	(1 << 9)	/* 34xxES2, ES3, non-Sitara 35xx only */
+#define CK_3505		(1 << 10)
+#define CK_3517		(1 << 11)
+#define CK_36XX		(1 << 12)	/* OMAP36xx/37xx-specific clocks */
+#define CK_443X		(1 << 13)
+
+#define CK_AM35XX	(CK_3505 | CK_3517)	/* all Sitara AM35xx */
+
+
 
 #endif