diff --git a/arch/arm/boards/efika-mx-smartbook/board.c b/arch/arm/boards/efika-mx-smartbook/board.c
index d7c5681..ec41eb8 100644
--- a/arch/arm/boards/efika-mx-smartbook/board.c
+++ b/arch/arm/boards/efika-mx-smartbook/board.c
@@ -79,7 +79,7 @@
 
 	/* power up the system first */
 	mc13xxx_reg_write(mc, MC13892_REG_POWER_MISC,
-			MC13892_POWER_MISC_PWUP);
+			  MC13892_POWER_MISC_GPO4ADIN);
 
 	/* Set core voltage to 1.1V */
 	mc13xxx_reg_read(mc, MC13892_REG_SW_0, &val);
diff --git a/include/mfd/mc13892.h b/include/mfd/mc13892.h
index 8b52239..e9a41ba 100644
--- a/include/mfd/mc13892.h
+++ b/include/mfd/mc13892.h
@@ -182,17 +182,18 @@
 #define MC13892_MODE_1_VSDMODE		(1 << 20)
 
 /* Reg Power misc */
-#define MC13892_POWER_MISC_GPO1EN          (1 << 6)
-#define MC13892_POWER_MISC_GPO1STBY        (1 << 7)
-#define MC13892_POWER_MISC_GPO2EN          (1 << 8)
-#define MC13892_POWER_MISC_GPO2STBY        (1 << 9)
-#define MC13892_POWER_MISC_GPO3EN          (1 << 10)
-#define MC13892_POWER_MISC_GPO3STBY        (1 << 11)
-#define MC13892_POWER_MISC_GPO4EN          (1 << 12)
-#define MC13892_POWER_MISC_GPO4STBY        (1 << 13)
-#define MC13892_POWER_MISC_PWGT1SPIEN      (1 << 15)
-#define MC13892_POWER_MISC_PWGT2SPIEN      (1 << 16)
-#define MC13892_POWER_MISC_PWUP            (1 << 21)
+#define MC13892_POWER_MISC_REGSCPEN	(1 << 0)
+#define MC13892_POWER_MISC_GPO1EN	(1 << 6)
+#define MC13892_POWER_MISC_GPO1STBY	(1 << 7)
+#define MC13892_POWER_MISC_GPO2EN	(1 << 8)
+#define MC13892_POWER_MISC_GPO2STBY	(1 << 9)
+#define MC13892_POWER_MISC_GPO3EN	(1 << 10)
+#define MC13892_POWER_MISC_GPO3STBY	(1 << 11)
+#define MC13892_POWER_MISC_GPO4EN	(1 << 12)
+#define MC13892_POWER_MISC_GPO4STBY	(1 << 13)
+#define MC13892_POWER_MISC_PWGT1SPIEN	(1 << 15)
+#define MC13892_POWER_MISC_PWGT2SPIEN	(1 << 16)
+#define MC13892_POWER_MISC_GPO4ADIN	(1 << 21)
 
 /* Reg Power Control 2*/
 #define MC13892_POWER_CONTROL_2_WDIRESET	(1 << 12)