diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/irq.c b/target/linux/ar71xx/files/arch/mips/ar71xx/irq.c
index 08317b42cc..12919f7e58 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/irq.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/irq.c
@@ -1,10 +1,12 @@
 /*
  *  Atheros AR71xx SoC specific interrupt handling
  *
+ *  Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com>
  *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
  *
- *  Parts of this file are based on Atheros' 2.6.15 BSP
+ *  Parts of this file are based on Atheros 2.6.15 BSP
+ *  Parts of this file are based on Atheros 2.6.31 BSP
  *
  *  This program is free software; you can redistribute it and/or modify it
  *  under the terms of the GNU General Public License version 2 as published
@@ -146,6 +148,21 @@ static void ar71xx_misc_irq_dispatch(void)
 	else if (pending & MISC_INT_WDOG)
 		do_IRQ(AR71XX_MISC_IRQ_WDOG);
 
+	else if (pending & MISC_INT_TIMER2)
+		do_IRQ(AR71XX_MISC_IRQ_TIMER2);
+
+	else if (pending & MISC_INT_TIMER3)
+		do_IRQ(AR71XX_MISC_IRQ_TIMER3);
+
+	else if (pending & MISC_INT_TIMER4)
+		do_IRQ(AR71XX_MISC_IRQ_TIMER4);
+
+	else if (pending & MISC_INT_DDR_PERF)
+		do_IRQ(AR71XX_MISC_IRQ_DDR_PERF);
+
+	else if (pending & MISC_INT_ENET_LINK)
+		do_IRQ(AR71XX_MISC_IRQ_ENET_LINK);
+
 	else
 		spurious_interrupt();
 }
@@ -215,6 +232,9 @@ static void __init ar71xx_misc_irq_init(void)
 	case AR71XX_SOC_AR7240:
 	case AR71XX_SOC_AR7241:
 	case AR71XX_SOC_AR7242:
+	case AR71XX_SOC_AR9341:
+	case AR71XX_SOC_AR9342:
+	case AR71XX_SOC_AR9344:
 		ar71xx_misc_irq_chip.ack = ar724x_misc_irq_ack;
 		break;
 	default:
@@ -281,10 +301,17 @@ void __init arch_init_irq(void)
 	case AR71XX_SOC_AR9132:
 		ip2_flush_reg = AR91XX_DDR_REG_FLUSH_WMAC;
 		break;
+	case AR71XX_SOC_AR9341:
+	case AR71XX_SOC_AR9342:
+	case AR71XX_SOC_AR9344:
+		ip2_flush_reg = AR934X_DDR_REG_FLUSH_PCIE;
+		break;
+
 	default:
 		ip2_flush_reg = AR71XX_DDR_REG_FLUSH_PCI;
 		break;
 	}
+
 	mips_cpu_irq_init();
 
 	ar71xx_misc_irq_init();
diff --git a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h
index 0a31678626..ab00d19e18 100644
--- a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h
+++ b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h
@@ -75,10 +75,10 @@
 
 #define AR71XX_CPU_IRQ_BASE	0
 #define AR71XX_MISC_IRQ_BASE	8
-#define AR71XX_MISC_IRQ_COUNT	8
-#define AR71XX_GPIO_IRQ_BASE	16
+#define AR71XX_MISC_IRQ_COUNT	32
+#define AR71XX_GPIO_IRQ_BASE	40
 #define AR71XX_GPIO_IRQ_COUNT	32
-#define AR71XX_PCI_IRQ_BASE     48
+#define AR71XX_PCI_IRQ_BASE	72
 #define AR71XX_PCI_IRQ_COUNT	8
 
 #define AR71XX_CPU_IRQ_IP2	(AR71XX_CPU_IRQ_BASE + 2)
@@ -96,6 +96,11 @@
 #define AR71XX_MISC_IRQ_PERFC	(AR71XX_MISC_IRQ_BASE + 5)
 #define AR71XX_MISC_IRQ_OHCI	(AR71XX_MISC_IRQ_BASE + 6)
 #define AR71XX_MISC_IRQ_DMA	(AR71XX_MISC_IRQ_BASE + 7)
+#define AR71XX_MISC_IRQ_TIMER2	(AR71XX_MISC_IRQ_BASE + 8)
+#define AR71XX_MISC_IRQ_TIMER3	(AR71XX_MISC_IRQ_BASE + 9)
+#define AR71XX_MISC_IRQ_TIMER4	(AR71XX_MISC_IRQ_BASE + 10)
+#define AR71XX_MISC_IRQ_DDR_PERF	(AR71XX_MISC_IRQ_BASE + 11)
+#define AR71XX_MISC_IRQ_ENET_LINK	(AR71XX_MISC_IRQ_BASE + 12)
 
 #define AR71XX_GPIO_IRQ(_x)	(AR71XX_GPIO_IRQ_BASE + (_x))
 
@@ -465,6 +470,12 @@ void ar71xx_gpio_function_setup(u32 set, u32 clear);
 #define AR91XX_DDR_REG_FLUSH_USB	0x84
 #define AR91XX_DDR_REG_FLUSH_WMAC	0x88
 
+#define AR934X_DDR_REG_FLUSH_GE0	0x9c
+#define AR934X_DDR_REG_FLUSH_GE1	0xa0
+#define AR934X_DDR_REG_FLUSH_USB	0xa4
+#define AR934X_DDR_REG_FLUSH_PCIE	0xa8
+
+
 #define PCI_WIN0_OFFS	0x10000000
 #define PCI_WIN1_OFFS	0x11000000
 #define PCI_WIN2_OFFS	0x12000000
@@ -564,6 +575,11 @@ void ar71xx_ddr_flush(u32 reg);
 #define WDOG_CTRL_ACTION_NMI		2	/* NMI */
 #define WDOG_CTRL_ACTION_FCR		3	/* full chip reset */
 
+#define MISC_INT_ENET_LINK		BIT(12)
+#define MISC_INT_DDR_PERF		BIT(11)
+#define MISC_INT_TIMER4		BIT(10)
+#define MISC_INT_TIMER3		BIT(9)
+#define MISC_INT_TIMER2		BIT(8)
 #define MISC_INT_DMA			BIT(7)
 #define MISC_INT_OHCI			BIT(6)
 #define MISC_INT_PERFC			BIT(5)
diff --git a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/irq.h b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/irq.h
index 2197a10810..c61d9c73fd 100644
--- a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/irq.h
+++ b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/irq.h
@@ -10,7 +10,7 @@
 #define __ASM_MACH_AR71XX_IRQ_H
 
 #define MIPS_CPU_IRQ_BASE	0
-#define NR_IRQS			56
+#define NR_IRQS			80
 
 #include_next <irq.h>