diff --git a/arch/mips/tx4927/common/tx4927_irq.c b/arch/mips/tx4927/common/tx4927_irq.c
index 3d25d010f3d5..00b0b975f349 100644
--- a/arch/mips/tx4927/common/tx4927_irq.c
+++ b/arch/mips/tx4927/common/tx4927_irq.c
@@ -43,6 +43,9 @@
 #include <asm/mipsregs.h>
 #include <asm/system.h>
 #include <asm/tx4927/tx4927.h>
+#ifdef CONFIG_TOSHIBA_RBTX4927
+#include <asm/tx4927/toshiba_rbtx4927.h>
+#endif
 
 /*
  * DEBUG
diff --git a/include/asm-mips/tx4927/toshiba_rbtx4927.h b/include/asm-mips/tx4927/toshiba_rbtx4927.h
index 94bef03d9635..5dc40a867774 100644
--- a/include/asm-mips/tx4927/toshiba_rbtx4927.h
+++ b/include/asm-mips/tx4927/toshiba_rbtx4927.h
@@ -52,4 +52,6 @@
 #define RBTX4927_RTL_8019_BASE (0x1c020280-TBTX4927_ISA_IO_OFFSET)
 #define RBTX4927_RTL_8019_IRQ  (29)
 
+int toshiba_rbtx4927_irq_nested(int sw_irq);
+
 #endif /* __ASM_TX4927_TOSHIBA_RBTX4927_H */