- 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 */
- };
-
- const long min_idsel = 17, max_idsel = 31, irqs_per_slot = 4;
- return PCI_IRQ_TABLE_LOOKUP + I8259_OFFSET;
+ 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;
+
+ /*
+ * 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
+ */
+ 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);
+ }
+
+ /*
+ * 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;
+
+ /* 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);
+
+ /* 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);
+
+#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)
+
+ /* USB 1.1 OHCI controller 1, slot 28, pin 1 */
+ ULI1575_SET_DEV_IRQ(28, 1, 0x86);
+
+ /* USB 1.1 OHCI controller 2, slot 28, pin 2 */
+ ULI1575_SET_DEV_IRQ(28, 2, 0x87);
+
+ /* USB 1.1 OHCI controller 3, slot 28, pin 3 */
+ ULI1575_SET_DEV_IRQ(28, 3, 0x88);
+
+ /* 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]);
+
+ /* Audio controller, slot 29, pin 1 */
+ ULI1575_SET_DEV_IRQ(29, 1, 0x8a);
+
+ /* 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, 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);
+ temp |= 0xc000;
+ pci_write_config_word(dev, 0x46, temp);
+
+ /* Set i8259 interrupt trigger
+ * IRQ 3: Level
+ * IRQ 4: Level
+ * IRQ 5: Level
+ * IRQ 6: Level
+ * IRQ 7: Level
+ * IRQ 9: Level
+ * IRQ 10: Level
+ * IRQ 11: Level
+ * IRQ 12: Level
+ * IRQ 14: Edge
+ * IRQ 15: Edge
+ */
+ outb(0xfa, 0x4d0);
+ outb(0x1e, 0x4d1);
+
+#undef ULI1575_SET_DEV_IRQ