diff --git a/arch/mips/txx9/generic/irq_tx4927.c b/arch/mips/txx9/generic/irq_tx4927.c
index cbea1fdde82b877adfe18e1341c2dc98ce375840..ad2870def8f1f7e1697205cfe2094f6a988ab7e8 100644
--- a/arch/mips/txx9/generic/irq_tx4927.c
+++ b/arch/mips/txx9/generic/irq_tx4927.c
@@ -30,8 +30,19 @@
 
 void __init tx4927_irq_init(void)
 {
+	int i;
+
 	mips_cpu_irq_init();
 	txx9_irq_init(TX4927_IRC_REG & 0xfffffffffULL);
 	set_irq_chained_handler(MIPS_CPU_IRQ_BASE + TX4927_IRC_INT,
 				handle_simple_irq);
+	/* raise priority for errors, timers, SIO */
+	txx9_irq_set_pri(TX4927_IR_ECCERR, 7);
+	txx9_irq_set_pri(TX4927_IR_WTOERR, 7);
+	txx9_irq_set_pri(TX4927_IR_PCIERR, 7);
+	txx9_irq_set_pri(TX4927_IR_PCIPME, 7);
+	for (i = 0; i < TX4927_NUM_IR_TMR; i++)
+		txx9_irq_set_pri(TX4927_IR_TMR(i), 6);
+	for (i = 0; i < TX4927_NUM_IR_SIO; i++)
+		txx9_irq_set_pri(TX4927_IR_SIO(i), 5);
 }
diff --git a/arch/mips/txx9/generic/irq_tx4938.c b/arch/mips/txx9/generic/irq_tx4938.c
index 6eac684bf19042cf6eb9590463ae337362b35b4e..025ae11359a8183cadd81f1418127b45b215c395 100644
--- a/arch/mips/txx9/generic/irq_tx4938.c
+++ b/arch/mips/txx9/generic/irq_tx4938.c
@@ -18,8 +18,19 @@
 
 void __init tx4938_irq_init(void)
 {
+	int i;
+
 	mips_cpu_irq_init();
 	txx9_irq_init(TX4938_IRC_REG & 0xfffffffffULL);
 	set_irq_chained_handler(MIPS_CPU_IRQ_BASE + TX4938_IRC_INT,
 				handle_simple_irq);
+	/* raise priority for errors, timers, SIO */
+	txx9_irq_set_pri(TX4938_IR_ECCERR, 7);
+	txx9_irq_set_pri(TX4938_IR_WTOERR, 7);
+	txx9_irq_set_pri(TX4938_IR_PCIERR, 7);
+	txx9_irq_set_pri(TX4938_IR_PCIPME, 7);
+	for (i = 0; i < TX4938_NUM_IR_TMR; i++)
+		txx9_irq_set_pri(TX4938_IR_TMR(i), 6);
+	for (i = 0; i < TX4938_NUM_IR_SIO; i++)
+		txx9_irq_set_pri(TX4938_IR_SIO(i), 5);
 }
diff --git a/include/asm-mips/txx9/tx4927.h b/include/asm-mips/txx9/tx4927.h
index 36a9241b0cacd3a6c9b7fa0d35a88af155eb84b8..7d813f1cb98d17ea8b19fa0e52ed7e2bda937a70 100644
--- a/include/asm-mips/txx9/tx4927.h
+++ b/include/asm-mips/txx9/tx4927.h
@@ -50,12 +50,23 @@
 #define TX4927_SIO_REG(ch)	(TX4927_REG_BASE + 0xf300 + (ch) * 0x100)
 #define TX4927_PIO_REG		(TX4927_REG_BASE + 0xf500)
 
+#define TX4927_IR_ECCERR	0
+#define TX4927_IR_WTOERR	1
+#define TX4927_NUM_IR_INT	6
 #define TX4927_IR_INT(n)	(2 + (n))
+#define TX4927_NUM_IR_SIO	2
 #define TX4927_IR_SIO(n)	(8 + (n))
+#define TX4927_NUM_IR_DMA	4
+#define TX4927_IR_DMA(n)	(10 + (n))
+#define TX4927_IR_PIO		14
+#define TX4927_IR_PDMAC		15
 #define TX4927_IR_PCIC		16
 #define TX4927_NUM_IR_TMR	3
 #define TX4927_IR_TMR(n)	(17 + (n))
 #define TX4927_IR_PCIERR	22
+#define TX4927_IR_PCIPME	23
+#define TX4927_IR_ACLC		24
+#define TX4927_IR_ACLCPME	25
 #define TX4927_NUM_IR	32
 
 #define TX4927_IRC_INT	2	/* IP[2] in Status register */