diff --git a/include/asm-arm/arch-kirkwood/kirkwood.h b/include/asm-arm/arch-kirkwood/kirkwood.h
index d5f25f9..52dafc2 100644
--- a/include/asm-arm/arch-kirkwood/kirkwood.h
+++ b/include/asm-arm/arch-kirkwood/kirkwood.h
@@ -55,6 +55,7 @@
 #define KW_CPU_REG_BASE			(KW_REGISTER(0x20100))
 #define KW_TIMER_BASE			(KW_REGISTER(0x20300))
 #define KW_REG_PCIE_BASE		(KW_REGISTER(0x40000))
+#define KW_USB20_BASE			(KW_REGISTER(0x50000))
 #define KW_EGIGA0_BASE			(KW_REGISTER(0x72000))
 #define KW_EGIGA1_BASE			(KW_REGISTER(0x76000))