diff --git a/arch/arm/mach-uniphier/sg-regs.h b/arch/arm/mach-uniphier/sg-regs.h
index 2cdc2db..4044245 100644
--- a/arch/arm/mach-uniphier/sg-regs.h
+++ b/arch/arm/mach-uniphier/sg-regs.h
@@ -126,6 +126,14 @@
 	writel(tmp, reg);
 }
 
+static inline void sg_set_iectrl_range(unsigned min, unsigned max)
+{
+	int i;
+
+	for (i = min; i <= max; i++)
+		sg_set_iectrl(i);
+}
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* ARCH_SG_REGS_H */