diff --git a/drivers/mfd/dbx500-prcmu-regs.h b/drivers/mfd/dbx500-prcmu-regs.h
index 23108a6..79c76eb 100644
--- a/drivers/mfd/dbx500-prcmu-regs.h
+++ b/drivers/mfd/dbx500-prcmu-regs.h
@@ -61,7 +61,8 @@
 #define PRCM_PLLARM_LOCKP_PRCM_PLLARM_LOCKP3	0x2
 
 #define PRCM_ARM_CHGCLKREQ	(_PRCMU_BASE + 0x114)
-#define PRCM_ARM_CHGCLKREQ_PRCM_ARM_CHGCLKREQ	0x1
+#define PRCM_ARM_CHGCLKREQ_PRCM_ARM_CHGCLKREQ	BIT(0)
+#define PRCM_ARM_CHGCLKREQ_PRCM_ARM_DIVSEL	BIT(16)
 
 #define PRCM_PLLARM_ENABLE	(_PRCMU_BASE + 0x98)
 #define PRCM_PLLARM_ENABLE_PRCM_PLLARM_ENABLE	0x1
@@ -140,6 +141,7 @@
 /* PRCMU clock/PLL/reset registers */
 #define PRCM_PLLSOC0_FREQ	   (_PRCMU_BASE + 0x080)
 #define PRCM_PLLSOC1_FREQ	   (_PRCMU_BASE + 0x084)
+#define PRCM_PLLARM_FREQ	   (_PRCMU_BASE + 0x088)
 #define PRCM_PLLDDR_FREQ	   (_PRCMU_BASE + 0x08C)
 #define PRCM_PLL_FREQ_D_SHIFT	0
 #define PRCM_PLL_FREQ_D_MASK	BITS(0, 7)