diff --git a/arch/powerpc/platforms/86xx/mpc8641_hpcn.h b/arch/powerpc/platforms/86xx/mpc8641_hpcn.h
index 5d2bcf7..41e554c 100644
--- a/arch/powerpc/platforms/86xx/mpc8641_hpcn.h
+++ b/arch/powerpc/platforms/86xx/mpc8641_hpcn.h
@@ -16,38 +16,6 @@
 
 #include <linux/init.h>
 
-/* PCI interrupt controller */
-#define PIRQA		3
-#define PIRQB		4
-#define PIRQC		5
-#define PIRQD		6
-#define PIRQ7		7
-#define PIRQE		9
-#define PIRQF		10
-#define PIRQG		11
-#define PIRQH		12
-
-/* PCI-Express memory map */
-#define MPC86XX_PCIE_LOWER_IO        0x00000000
-#define MPC86XX_PCIE_UPPER_IO        0x00ffffff
-
-#define MPC86XX_PCIE_LOWER_MEM       0x80000000
-#define MPC86XX_PCIE_UPPER_MEM       0x9fffffff
-
-#define MPC86XX_PCIE_IO_BASE         0xe2000000
-#define MPC86XX_PCIE_MEM_OFFSET      0x00000000
-
-#define MPC86XX_PCIE_IO_SIZE         0x01000000
-
-#define PCIE1_CFG_ADDR_OFFSET    (0x8000)
-#define PCIE1_CFG_DATA_OFFSET    (0x8004)
-
-#define PCIE2_CFG_ADDR_OFFSET    (0x9000)
-#define PCIE2_CFG_DATA_OFFSET    (0x9004)
-
-#define MPC86xx_PCIE_OFFSET PCIE1_CFG_ADDR_OFFSET
-#define MPC86xx_PCIE_SIZE	(0x1000)
-
 #define MPC86XX_RSTCR_OFFSET	(0xe00b0)	/* Reset Control Register */
 
 #endif	/* __MPC8641_HPCN_H__ */
diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
index 8390906..4a33d95 100644
--- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
+++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
@@ -37,6 +37,14 @@
 #include "mpc86xx.h"
 #include "mpc8641_hpcn.h"
 
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(fmt...) do { printk(KERN_ERR fmt); } while(0)
+#else
+#define DBG(fmt...) do { } while(0)
+#endif
+
 #ifndef CONFIG_PCI
 unsigned long isa_io_base = 0;
 unsigned long isa_mem_base = 0;
@@ -44,205 +52,215 @@
 #endif
 
 
-/*
- * Internal interrupts are all Level Sensitive, and Positive Polarity
- */
-
-static u_char mpc86xx_hpcn_openpic_initsenses[] __initdata = {
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal  0: Reserved */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal  1: MCM */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal  2: DDR DRAM */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal  3: LBIU */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal  4: DMA 0 */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal  5: DMA 1 */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal  6: DMA 2 */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal  7: DMA 3 */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal  8: PCIE1 */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal  9: PCIE2 */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 10: Reserved */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 11: Reserved */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 12: DUART2 */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 13: TSEC 1 Transmit */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 14: TSEC 1 Receive */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 15: TSEC 3 transmit */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 16: TSEC 3 receive */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 17: TSEC 3 error */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 18: TSEC 1 Receive/Transmit Error */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 19: TSEC 2 Transmit */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 20: TSEC 2 Receive */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 21: TSEC 4 transmit */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 22: TSEC 4 receive */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 23: TSEC 4 error */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 24: TSEC 2 Receive/Transmit Error */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 25: Unused */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 26: DUART1 */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 27: I2C */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 28: Performance Monitor */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 29: Unused */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 30: Unused */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 31: Unused */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 32: SRIO error/write-port unit */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 33: SRIO outbound doorbell */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 34: SRIO inbound doorbell */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 35: Unused */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 36: Unused */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 37: SRIO outbound message unit 1 */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 38: SRIO inbound message unit 1 */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 39: SRIO outbound message unit 2 */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 40: SRIO inbound message unit 2 */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 41: Unused */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 42: Unused */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 43: Unused */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 44: Unused */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 45: Unused */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 46: Unused */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* Internal 47: Unused */
-	0x0,						/* External  0: */
-	0x0,						/* External  1: */
-	0x0,						/* External  2: */
-	0x0,						/* External  3: */
-	0x0,						/* External  4: */
-	0x0,						/* External  5: */
-	0x0,						/* External  6: */
-	0x0,						/* External  7: */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* External  8: Pixis FPGA */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_POSITIVE),	/* External  9: ULI 8259 INTR Cascade */
-	(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),	/* External 10: Quad ETH PHY */
-	0x0,						/* External 11: */
-	0x0,
-	0x0,
-	0x0,
-	0x0,
-};
-
+static void mpc86xx_8259_cascade(unsigned int irq, struct irq_desc *desc,
+				 struct pt_regs *regs)
+{
+	unsigned int cascade_irq = i8259_irq(regs);
+	if (cascade_irq != NO_IRQ)
+		generic_handle_irq(cascade_irq, regs);
+	desc->chip->eoi(irq);
+}
 
 void __init
 mpc86xx_hpcn_init_irq(void)
 {
 	struct mpic *mpic1;
+	struct device_node *np, *cascade_node = NULL;
+	int cascade_irq;
 	phys_addr_t openpic_paddr;
 
+	np = of_find_node_by_type(NULL, "open-pic");
+	if (np == NULL)
+		return;
+
 	/* Determine the Physical Address of the OpenPIC regs */
 	openpic_paddr = get_immrbase() + MPC86xx_OPENPIC_OFFSET;
 
 	/* Alloc mpic structure and per isu has 16 INT entries. */
-	mpic1 = mpic_alloc(openpic_paddr,
+	mpic1 = mpic_alloc(np, openpic_paddr,
 			MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
-			16, MPC86xx_OPENPIC_IRQ_OFFSET, 0, 250,
-			mpc86xx_hpcn_openpic_initsenses,
-			sizeof(mpc86xx_hpcn_openpic_initsenses),
+			16, NR_IRQS - 4,
 			" MPIC     ");
 	BUG_ON(mpic1 == NULL);
 
-	/* 48 Internal Interrupts */
-	mpic_assign_isu(mpic1, 0, openpic_paddr + 0x10200);
-	mpic_assign_isu(mpic1, 1, openpic_paddr + 0x10400);
-	mpic_assign_isu(mpic1, 2, openpic_paddr + 0x10600);
+	mpic_assign_isu(mpic1, 0, openpic_paddr + 0x10000);
 
-	/* 16 External interrupts */
-	mpic_assign_isu(mpic1, 3, openpic_paddr + 0x10000);
+	/* 48 Internal Interrupts */
+	mpic_assign_isu(mpic1, 1, openpic_paddr + 0x10200);
+	mpic_assign_isu(mpic1, 2, openpic_paddr + 0x10400);
+	mpic_assign_isu(mpic1, 3, openpic_paddr + 0x10600);
+
+	/* 16 External interrupts
+	 * Moving them from [0 - 15] to [64 - 79]
+	 */
+	mpic_assign_isu(mpic1, 4, openpic_paddr + 0x10000);
 
 	mpic_init(mpic1);
 
 #ifdef CONFIG_PCI
-	mpic_setup_cascade(MPC86xx_IRQ_EXT9, i8259_irq_cascade, NULL);
-	i8259_init(0, I8259_OFFSET);
+	/* Initialize i8259 controller */
+	for_each_node_by_type(np, "interrupt-controller")
+		if (device_is_compatible(np, "chrp,iic")) {
+			cascade_node = np;
+			break;
+		}
+	if (cascade_node == NULL) {
+		printk(KERN_DEBUG "mpc86xxhpcn: no ISA interrupt controller\n");
+		return;
+	}
+
+	cascade_irq = irq_of_parse_and_map(cascade_node, 0);
+	if (cascade_irq == NO_IRQ) {
+		printk(KERN_ERR "mpc86xxhpcn: failed to map cascade interrupt");
+		return;
+	}
+	DBG("mpc86xxhpcn: cascade mapped to irq %d\n", cascade_irq);
+
+	i8259_init(cascade_node, 0);
+	set_irq_chained_handler(cascade_irq, mpc86xx_8259_cascade);
 #endif
 }
 
-
-
 #ifdef CONFIG_PCI
-/*
- * interrupt routing
- */
 
-int
-mpc86xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
+enum pirq{PIRQA = 8, PIRQB, PIRQC, PIRQD, PIRQE, PIRQF, PIRQG, PIRQH};
+const unsigned char uli1575_irq_route_table[16] = {
+	0, 	/* 0: Reserved */
+	0x8, 	/* 1: 0b1000 */
+	0, 	/* 2: Reserved */
+	0x2,	/* 3: 0b0010 */
+	0x4,	/* 4: 0b0100 */
+	0x5, 	/* 5: 0b0101 */
+	0x7,	/* 6: 0b0111 */
+	0x6,	/* 7: 0b0110 */
+	0, 	/* 8: Reserved */
+	0x1,	/* 9: 0b0001 */
+	0x3,	/* 10: 0b0011 */
+	0x9,	/* 11: 0b1001 */
+	0xb,	/* 12: 0b1011 */
+	0, 	/* 13: Reserved */
+	0xd,	/* 14, 0b1101 */
+	0xf,	/* 15, 0b1111 */
+};
+
+static int __devinit
+get_pci_irq_from_of(struct pci_controller *hose, int slot, int pin)
 {
-	static char pci_irq_table[][4] = {
-		/*
-		 *      PCI IDSEL/INTPIN->INTLINE
-		 *       A      B      C      D
-		 */
-		{PIRQA, PIRQB, PIRQC, PIRQD},   /* IDSEL 17 -- PCI Slot 1 */
-		{PIRQB, PIRQC, PIRQD, PIRQA},	/* IDSEL 18 -- PCI Slot 2 */
-		{0, 0, 0, 0},			/* IDSEL 19 */
-		{0, 0, 0, 0},			/* IDSEL 20 */
-		{0, 0, 0, 0},			/* IDSEL 21 */
-		{0, 0, 0, 0},			/* IDSEL 22 */
-		{0, 0, 0, 0},			/* IDSEL 23 */
-		{0, 0, 0, 0},			/* IDSEL 24 */
-		{0, 0, 0, 0},			/* IDSEL 25 */
-		{PIRQD, PIRQA, PIRQB, PIRQC},	/* IDSEL 26 -- PCI Bridge*/
-		{PIRQC, 0, 0, 0},		/* IDSEL 27 -- LAN */
-		{PIRQE, PIRQF, PIRQH, PIRQ7},	/* IDSEL 28 -- USB 1.1 */
-		{PIRQE, PIRQF, PIRQG, 0},	/* IDSEL 29 -- Audio & Modem */
-		{PIRQH, 0, 0, 0},		/* IDSEL 30 -- LPC & PMU*/
-		{PIRQD, 0, 0, 0},		/* IDSEL 31 -- ATA */
-	};
+	struct of_irq oirq;
+	u32 laddr[3];
+	struct device_node *hosenode = hose ? hose->arch_data : NULL;
 
-	const long min_idsel = 17, max_idsel = 31, irqs_per_slot = 4;
-	return PCI_IRQ_TABLE_LOOKUP + I8259_OFFSET;
+	if (!hosenode) return -EINVAL;
+
+	laddr[0] = (hose->first_busno << 16) | (PCI_DEVFN(slot, 0) << 8);
+	laddr[1] = laddr[2] = 0;
+	of_irq_map_raw(hosenode, &pin, laddr, &oirq);
+	DBG("mpc86xx_hpcn: pci irq addr %x, slot %d, pin %d, irq %d\n",
+			laddr[0], slot, pin, oirq.specifier[0]);
+	return oirq.specifier[0];
 }
 
-static void __devinit quirk_ali1575(struct pci_dev *dev)
+static void __devinit quirk_uli1575(struct pci_dev *dev)
 {
 	unsigned short temp;
+	struct pci_controller *hose = pci_bus_to_host(dev->bus);
+	unsigned char irq2pin[16];
+	unsigned long pirq_map_word = 0;
+	u32 irq;
+	int i;
 
 	/*
-	 * ALI1575 interrupts route table setup:
-	 *
-	 * IRQ pin   IRQ#
-	 * PIRQA ---- 3
-	 * PIRQB ---- 4
-	 * PIRQC ---- 5
-	 * PIRQD ---- 6
-	 * PIRQE ---- 9
-	 * PIRQF ---- 10
-	 * PIRQG ---- 11
-	 * PIRQH ---- 12
+	 * ULI1575 interrupts route setup
+	 */
+	memset(irq2pin, 0, 16); /* Initialize default value 0 */
+
+	/*
+	 * PIRQA -> PIRQD mapping read from OF-tree
 	 *
 	 * interrupts for PCI slot0 -- PIRQA / PIRQB / PIRQC / PIRQD
 	 *                PCI slot1 -- PIRQB / PIRQC / PIRQD / PIRQA
 	 */
-	pci_write_config_dword(dev, 0x48, 0xb9317542);
+	for (i = 0; i < 4; i++){
+		irq = get_pci_irq_from_of(hose, 17, i + 1);
+		if (irq > 0 && irq < 16)
+			irq2pin[irq] = PIRQA + i;
+		else
+			printk(KERN_WARNING "ULI1575 device"
+			    "(slot %d, pin %d) irq %d is invalid.\n",
+			    17, i, irq);
+	}
 
-	/* USB 1.1 OHCI controller 1, interrupt: PIRQE */
-	pci_write_config_byte(dev, 0x86, 0x0c);
+	/*
+	 * PIRQE -> PIRQF mapping set manually
+	 *
+	 * IRQ pin   IRQ#
+	 * PIRQE ---- 9
+	 * PIRQF ---- 10
+	 * PIRQG ---- 11
+	 * PIRQH ---- 12
+	 */
+	for (i = 0; i < 4; i++) irq2pin[i + 9] = PIRQE + i;
 
-	/* USB 1.1 OHCI controller 2, interrupt: PIRQF */
-	pci_write_config_byte(dev, 0x87, 0x0d);
+	/* Set IRQ-PIRQ Mapping to ULI1575 */
+	for (i = 0; i < 16; i++)
+		if (irq2pin[i])
+			pirq_map_word |= (uli1575_irq_route_table[i] & 0xf)
+				<< ((irq2pin[i] - PIRQA) * 4);
 
-	/* USB 1.1 OHCI controller 3, interrupt: PIRQH */
-	pci_write_config_byte(dev, 0x88, 0x0f);
+	/* ULI1575 IRQ mapping conf register default value is 0xb9317542 */
+	DBG("Setup ULI1575 IRQ mapping configuration register value = 0x%x\n",
+			pirq_map_word);
+	pci_write_config_dword(dev, 0x48, pirq_map_word);
 
-	/* USB 2.0 controller, interrupt: PIRQ7 */
-	pci_write_config_byte(dev, 0x74, 0x06);
+#define ULI1575_SET_DEV_IRQ(slot, pin, reg) 				\
+	do { 								\
+		int irq; 						\
+		irq = get_pci_irq_from_of(hose, slot, pin); 		\
+		if (irq > 0 && irq < 16) 				\
+			pci_write_config_byte(dev, reg, irq2pin[irq]); 	\
+		else							\
+			printk(KERN_WARNING "ULI1575 device"		\
+			    "(slot %d, pin %d) irq %d is invalid.\n",	\
+			    slot, pin, irq);				\
+	} while(0)
 
-	/* Audio controller, interrupt: PIRQE */
-	pci_write_config_byte(dev, 0x8a, 0x0c);
+	/* USB 1.1 OHCI controller 1, slot 28, pin 1 */
+	ULI1575_SET_DEV_IRQ(28, 1, 0x86);
 
-	/* Modem controller, interrupt: PIRQF */
-	pci_write_config_byte(dev, 0x8b, 0x0d);
+	/* USB 1.1 OHCI controller 2, slot 28, pin 2 */
+	ULI1575_SET_DEV_IRQ(28, 2, 0x87);
 
-	/* HD audio controller, interrupt: PIRQG */
-	pci_write_config_byte(dev, 0x8c, 0x0e);
+	/* USB 1.1 OHCI controller 3, slot 28, pin 3 */
+	ULI1575_SET_DEV_IRQ(28, 3, 0x88);
 
-	/* Serial ATA interrupt: PIRQD */
-	pci_write_config_byte(dev, 0x8d, 0x0b);
+	/* USB 2.0 controller, slot 28, pin 4 */
+	irq = get_pci_irq_from_of(hose, 28, 4);
+	if (irq >= 0 && irq <=15)
+		pci_write_config_dword(dev, 0x74, uli1575_irq_route_table[irq]);
 
-	/* SMB interrupt: PIRQH */
-	pci_write_config_byte(dev, 0x8e, 0x0f);
+	/* Audio controller, slot 29, pin 1 */
+	ULI1575_SET_DEV_IRQ(29, 1, 0x8a);
 
-	/* PMU ACPI SCI interrupt: PIRQH */
-	pci_write_config_byte(dev, 0x8f, 0x0f);
+	/* Modem controller, slot 29, pin 2 */
+	ULI1575_SET_DEV_IRQ(29, 2, 0x8b);
+
+	/* HD audio controller, slot 29, pin 3 */
+	ULI1575_SET_DEV_IRQ(29, 3, 0x8c);
+
+	/* SMB interrupt: slot 30, pin 1 */
+	ULI1575_SET_DEV_IRQ(30, 1, 0x8e);
+
+	/* PMU ACPI SCI interrupt: slot 30, pin 2 */
+	ULI1575_SET_DEV_IRQ(30, 2, 0x8f);
+
+	/* Serial ATA interrupt: slot 31, pin 1 */
+	ULI1575_SET_DEV_IRQ(31, 1, 0x8d);
 
 	/* Primary PATA IDE IRQ: 14
 	 * Secondary PATA IDE IRQ: 15
 	 */
-	pci_write_config_byte(dev, 0x44, 0x3d);
-	pci_write_config_byte(dev, 0x75, 0x0f);
+	pci_write_config_byte(dev, 0x44, 0x30 | uli1575_irq_route_table[14]);
+	pci_write_config_byte(dev, 0x75, uli1575_irq_route_table[15]);
 
 	/* Set IRQ14 and IRQ15 to legacy IRQs */
 	pci_read_config_word(dev, 0x46, &temp);
@@ -264,6 +282,8 @@
 	 */
 	outb(0xfa, 0x4d0);
 	outb(0x1e, 0x4d1);
+
+#undef ULI1575_SET_DEV_IRQ
 }
 
 static void __devinit quirk_uli5288(struct pci_dev *dev)
@@ -306,7 +326,7 @@
 	dev->class |= 0x1;
 }
 
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1575, quirk_ali1575);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1575, quirk_uli1575);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5288, quirk_uli5288);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5229, quirk_uli5229);
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AL, 0x5249, early_uli5249);
@@ -337,8 +357,6 @@
 	for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
 		add_bridge(np);
 
-	ppc_md.pci_swizzle = common_swizzle;
-	ppc_md.pci_map_irq = mpc86xx_map_irq;
 	ppc_md.pci_exclude_device = mpc86xx_exclude_device;
 #endif
 
@@ -377,6 +395,15 @@
 }
 
 
+void __init mpc86xx_hpcn_pcibios_fixup(void)
+{
+	struct pci_dev *dev = NULL;
+
+	for_each_pci_dev(dev)
+		pci_read_irq_line(dev);
+}
+
+
 /*
  * Called very early, device-tree isn't unflattened
  */
@@ -431,6 +458,7 @@
 	.setup_arch		= mpc86xx_hpcn_setup_arch,
 	.init_IRQ		= mpc86xx_hpcn_init_irq,
 	.show_cpuinfo		= mpc86xx_hpcn_show_cpuinfo,
+	.pcibios_fixup		= mpc86xx_hpcn_pcibios_fixup,
 	.get_irq		= mpic_get_irq,
 	.restart		= mpc86xx_restart,
 	.time_init		= mpc86xx_time_init,
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index 07c47e8..4a6aa64 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -85,11 +85,8 @@
 			mdio_data.irq[k] = -1;
 
 		while ((child = of_get_next_child(np, child)) != NULL) {
-			if (child->n_intrs) {
-				const u32 *id =
-					get_property(child, "reg", NULL);
-				mdio_data.irq[*id] = child->intrs[0].line;
-			}
+			const u32 *id = get_property(child, "reg", NULL);
+			mdio_data.irq[*id] = irq_of_parse_and_map(child, 0);
 		}
 
 		ret =
@@ -131,6 +128,7 @@
 		const char *model;
 		const void *mac_addr;
 		const phandle *ph;
+		int n_res = 1;
 
 		memset(r, 0, sizeof(r));
 		memset(&gfar_data, 0, sizeof(gfar_data));
@@ -139,8 +137,7 @@
 		if (ret)
 			goto err;
 
-		r[1].start = np->intrs[0].line;
-		r[1].end = np->intrs[0].line;
+		r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
 		r[1].flags = IORESOURCE_IRQ;
 
 		model = get_property(np, "model", NULL);
@@ -150,19 +147,19 @@
 			r[1].name = gfar_tx_intr;
 
 			r[2].name = gfar_rx_intr;
-			r[2].start = np->intrs[1].line;
-			r[2].end = np->intrs[1].line;
+			r[2].start = r[2].end = irq_of_parse_and_map(np, 1);
 			r[2].flags = IORESOURCE_IRQ;
 
 			r[3].name = gfar_err_intr;
-			r[3].start = np->intrs[2].line;
-			r[3].end = np->intrs[2].line;
+			r[3].start = r[3].end = irq_of_parse_and_map(np, 2);
 			r[3].flags = IORESOURCE_IRQ;
+
+			n_res += 2;
 		}
 
 		gfar_dev =
 		    platform_device_register_simple("fsl-gianfar", i, &r[0],
-						    np->n_intrs + 1);
+						    n_res + 1);
 
 		if (IS_ERR(gfar_dev)) {
 			ret = PTR_ERR(gfar_dev);
@@ -251,8 +248,7 @@
 		if (ret)
 			goto err;
 
-		r[1].start = np->intrs[0].line;
-		r[1].end = np->intrs[0].line;
+		r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
 		r[1].flags = IORESOURCE_IRQ;
 
 		i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
@@ -388,8 +384,7 @@
 		if (ret)
 			goto err;
 
-		r[1].start = np->intrs[0].line;
-		r[1].end = np->intrs[0].line;
+		r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
 		r[1].flags = IORESOURCE_IRQ;
 
 		usb_dev_mph =
@@ -437,8 +432,7 @@
 		if (ret)
 			goto unreg_mph;
 
-		r[1].start = np->intrs[0].line;
-		r[1].end = np->intrs[0].line;
+		r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
 		r[1].flags = IORESOURCE_IRQ;
 
 		usb_dev_dr =