diff --git a/include/asm-mips/mach-db1x00/db1200.h b/include/asm-mips/mach-db1x00/db1200.h
index 050eae87ff0..a6bdac61ab4 100644
--- a/include/asm-mips/mach-db1x00/db1200.h
+++ b/include/asm-mips/mach-db1x00/db1200.h
@@ -25,6 +25,7 @@
 #define __ASM_DB1200_H
 
 #include <linux/types.h>
+#include <asm/mach-au1x00/au1xxx_psc.h>
 
 // This is defined in au1000.h with bogus value
 #undef AU1X00_EXTERNAL_INT
diff --git a/include/asm-mips/mach-db1x00/db1x00.h b/include/asm-mips/mach-db1x00/db1x00.h
index 0f5f4c29f4e..e7a88ba3583 100644
--- a/include/asm-mips/mach-db1x00/db1x00.h
+++ b/include/asm-mips/mach-db1x00/db1x00.h
@@ -28,6 +28,7 @@
 #ifndef __ASM_DB1X00_H
 #define __ASM_DB1X00_H
 
+#include <asm/mach-au1x00/au1xxx_psc.h>
 
 #ifdef CONFIG_MIPS_DB1550
 
diff --git a/include/asm-mips/mach-pb1x00/pb1200.h b/include/asm-mips/mach-pb1x00/pb1200.h
index d9f384acfea..ed5fd739067 100644
--- a/include/asm-mips/mach-pb1x00/pb1200.h
+++ b/include/asm-mips/mach-pb1x00/pb1200.h
@@ -25,6 +25,7 @@
 #define __ASM_PB1200_H
 
 #include <linux/types.h>
+#include <asm/mach-au1x00/au1xxx_psc.h>
 
 // This is defined in au1000.h with bogus value
 #undef AU1X00_EXTERNAL_INT
diff --git a/include/asm-mips/mach-pb1x00/pb1550.h b/include/asm-mips/mach-pb1x00/pb1550.h
index 9a4955ce3b4..c2ab0e2df4a 100644
--- a/include/asm-mips/mach-pb1x00/pb1550.h
+++ b/include/asm-mips/mach-pb1x00/pb1550.h
@@ -28,6 +28,7 @@
 #define __ASM_PB1550_H
 
 #include <linux/types.h>
+#include <asm/mach-au1x00/au1xxx_psc.h>
 
 #define DBDMA_AC97_TX_CHAN DSCR_CMD0_PSC1_TX
 #define DBDMA_AC97_RX_CHAN DSCR_CMD0_PSC1_RX