diff --git a/include/asm-mips/txx9/rbtx4938.h b/include/asm-mips/txx9/rbtx4938.h
index 8450f73..2f5d5e7 100644
--- a/include/asm-mips/txx9/rbtx4938.h
+++ b/include/asm-mips/txx9/rbtx4938.h
@@ -101,35 +101,12 @@
  * that particular IRQ on an RBTX4938 machine.  Add new 'spaces' as new
  * IRQ hardware is supported.
  */
-#define RBTX4938_NR_IRQ_LOCAL	8
-#define RBTX4938_NR_IRQ_IRC	32	/* On-Chip IRC */
 #define RBTX4938_NR_IRQ_IOC	8
 
-#define TX4938_IRQ_CP0_BEG  MIPS_CPU_IRQ_BASE
-#define TX4938_IRQ_CP0_END  (MIPS_CPU_IRQ_BASE + 8 - 1)
-
-#define TX4938_IRQ_PIC_BEG  TXX9_IRQ_BASE
-#define TX4938_IRQ_PIC_END  (TXX9_IRQ_BASE + TXx9_MAX_IR - 1)
-#define TX4938_IRQ_NEST_EXT_ON_PIC  (TX4938_IRQ_PIC_BEG+2)
-#define TX4938_IRQ_NEST_PIC_ON_CP0  (TX4938_IRQ_CP0_BEG+2)
-#define TX4938_IRQ_USER0            (TX4938_IRQ_CP0_BEG+0)
-#define TX4938_IRQ_USER1            (TX4938_IRQ_CP0_BEG+1)
-#define TX4938_IRQ_CPU_TIMER        (TX4938_IRQ_CP0_BEG+7)
-
-#define TOSHIBA_RBTX4938_IRQ_IOC_RAW_BEG   0
-#define TOSHIBA_RBTX4938_IRQ_IOC_RAW_END   7
-
-#define TOSHIBA_RBTX4938_IRQ_IOC_BEG  ((TX4938_IRQ_PIC_END+1)+TOSHIBA_RBTX4938_IRQ_IOC_RAW_BEG) /* 56 */
-#define TOSHIBA_RBTX4938_IRQ_IOC_END  ((TX4938_IRQ_PIC_END+1)+TOSHIBA_RBTX4938_IRQ_IOC_RAW_END) /* 63 */
-#define RBTX4938_IRQ_LOCAL	TX4938_IRQ_CP0_BEG
-#define RBTX4938_IRQ_IRC	(RBTX4938_IRQ_LOCAL + RBTX4938_NR_IRQ_LOCAL)
-#define RBTX4938_IRQ_IOC	(RBTX4938_IRQ_IRC + RBTX4938_NR_IRQ_IRC)
+#define RBTX4938_IRQ_IRC	TXX9_IRQ_BASE
+#define RBTX4938_IRQ_IOC	(TXX9_IRQ_BASE + TX4938_NUM_IR)
 #define RBTX4938_IRQ_END	(RBTX4938_IRQ_IOC + RBTX4938_NR_IRQ_IOC)
 
-#define RBTX4938_IRQ_LOCAL_SOFT0	(RBTX4938_IRQ_LOCAL + RBTX4938_SOFT_INT0)
-#define RBTX4938_IRQ_LOCAL_SOFT1	(RBTX4938_IRQ_LOCAL + RBTX4938_SOFT_INT1)
-#define RBTX4938_IRQ_LOCAL_IRC	(RBTX4938_IRQ_LOCAL + RBTX4938_IRC_INT)
-#define RBTX4938_IRQ_LOCAL_TIMER	(RBTX4938_IRQ_LOCAL + RBTX4938_TIMER_INT)
 #define RBTX4938_IRQ_IRC_ECCERR	(RBTX4938_IRQ_IRC + TX4938_IR_ECCERR)
 #define RBTX4938_IRQ_IRC_WTOERR	(RBTX4938_IRQ_IRC + TX4938_IR_WTOERR)
 #define RBTX4938_IRQ_IRC_INT(n)	(RBTX4938_IRQ_IRC + TX4938_IR_INT(n))
@@ -157,11 +134,16 @@
 
 
 /* IOC (PCI, etc) */
-#define RBTX4938_IRQ_IOCINT	(TX4938_IRQ_NEST_EXT_ON_PIC)
+#define RBTX4938_IRQ_IOCINT	(TXX9_IRQ_BASE + TX4938_IR_INT(0))
 /* Onboard 10M Ether */
-#define RBTX4938_IRQ_ETHER	(TX4938_IRQ_NEST_EXT_ON_PIC + 1)
+#define RBTX4938_IRQ_ETHER	(TXX9_IRQ_BASE + TX4938_IR_INT(1))
 
 #define RBTX4938_RTL_8019_BASE (RBTX4938_ETHER_ADDR - mips_io_port_base)
 #define RBTX4938_RTL_8019_IRQ  (RBTX4938_IRQ_ETHER)
 
+void rbtx4938_prom_init(void);
+void rbtx4938_irq_setup(void);
+struct pci_dev;
+int rbtx4938_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
+
 #endif /* __ASM_TXX9_RBTX4938_H */