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/* Run checkpir to verify any changes to this table...
Documentation at : http://www.microsoft.com/whdc/archive/pciirq.mspx
*/
#include <arch/pirq_routing.h>
#include <device/pci_def.h>
#include <device/pci_ids.h>
#include "bus.h"
#define UNUSED_INTERRUPT {0, 0}
#define PIRQ_A 0x60
#define PIRQ_B 0x61
#define PIRQ_C 0x62
#define PIRQ_D 0x63
#define PIRQ_E 0x68
#define PIRQ_F 0x69
#define PIRQ_G 0x6A
#define PIRQ_H 0x6B
static const struct irq_routing_table intel_irq_routing_table = {
PIRQ_SIGNATURE,
PIRQ_VERSION,
32 + 16 * CONFIG_IRQ_SLOT_COUNT, // Size of this struct in bytes
0, // PCI bus number on which the interrupt router resides
PCI_DEVFN(31, 0), // PCI device/function number of the interrupt router
0, // PCI-exclusive IRQ bitmap
PCI_VENDOR_ID_INTEL, // Vendor ID of compatible PCI interrupt router
PCI_DEVICE_ID_INTEL_82801CA_LPC, // Device ID of compatible PCI interrupt router
0, // Additional miniport information
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, // Reserved, must be zero
0xB1, // Checksum of the entire structure (causes 8-bit sum == 0)
{
// NOTE: For 82801, a nonzero link value is a pointer to a PIRQ[n]_ROUT register in PCI configuration space
// This was determined from linux-2.6.11/arch/x86/pci/irq.c
// bitmap of 0xdcf8 == routable to IRQ3-IRQ7, IRQ10-IRQ12, or IRQ14-IRQ15
// ICH-3 doesn't allow SERIRQ or PCI message to generate IRQ0, IRQ2, IRQ8, or IRQ13
// Not sure why IRQ9 isn't routable (inherited from Tyan S2735)
// INTA# INTB# INTC# INTD#
// bus, device # {link , bitmap}, {link , bitmap}, {link , bitmap}, {link , bitmap}, slot, rfu
{PCI_BUS_CHIPSET, PCI_DEVFN(31, 0), {{PIRQ_C, 0xdcf8}, {PIRQ_B, 0xdcf8}, UNUSED_INTERRUPT, UNUSED_INTERRUPT}, 0, 0}, // IDE / SMBus
{PCI_BUS_CHIPSET, PCI_DEVFN(29, 0), {{PIRQ_A, 0xdcf8}, {PIRQ_D, 0xdcf8}, {PIRQ_C, 0xdcf8}, UNUSED_INTERRUPT}, 0, 0}, // USB 1.1
// P64H2#2 Bus A
{PCI_BUS_P64H2_2_A, PCI_DEVFN(1, 0), {{PIRQ_B, 0xdcf8}, {PIRQ_B, 0xdcf8}, UNUSED_INTERRUPT, UNUSED_INTERRUPT}, 0, 0}, // SCSI
// NOTE: Hotplug disabled on this bus
// P64H2#2 Bus B
{PCI_BUS_P64H2_2_B, PCI_DEVFN(1, 0), {{PIRQ_B, 0xdcf8}, {PIRQ_B, 0xdcf8}, {PIRQ_B, 0xdcf8}, {PIRQ_B, 0xdcf8}}, 23, 0}, // Slot 2A (J23)
{PCI_BUS_P64H2_2_B, PCI_DEVFN(2, 0), {{PIRQ_B, 0xdcf8}, {PIRQ_B, 0xdcf8}, {PIRQ_B, 0xdcf8}, {PIRQ_B, 0xdcf8}}, 24, 0}, // Slot 2B (J24)
{PCI_BUS_P64H2_2_B, PCI_DEVFN(3, 0), {{PIRQ_B, 0xdcf8}, {PIRQ_B, 0xdcf8}, {PIRQ_B, 0xdcf8}, {PIRQ_B, 0xdcf8}}, 25, 0}, // Slot 2C (J25)
{PCI_BUS_P64H2_2_B, PCI_DEVFN(4, 0), {{PIRQ_B, 0xdcf8}, {PIRQ_B, 0xdcf8}, {PIRQ_B, 0xdcf8}, {PIRQ_B, 0xdcf8}}, 12, 0}, // Slot 2D (J12)
// NOTE: Hotplug disabled on this bus
// P64H2#1 Bus A
{PCI_BUS_P64H2_1_A, PCI_DEVFN(1, 0), {{PIRQ_A, 0xdcf8}, {PIRQ_A, 0xdcf8}, {PIRQ_A, 0xdcf8}, {PIRQ_A, 0xdcf8}}, 20, 0}, // Slot 1A (J20)
// NOTE: Hotplug disabled on this bus
// P64H2#1 Bus B
{PCI_BUS_P64H2_1_B, PCI_DEVFN(1, 0), {{PIRQ_A, 0xdcf8}, UNUSED_INTERRUPT, UNUSED_INTERRUPT, UNUSED_INTERRUPT}, 0, 0}, // GB Ethernet
{PCI_BUS_P64H2_1_B, PCI_DEVFN(2, 0), {{PIRQ_A, 0xdcf8}, {PIRQ_A, 0xdcf8}, {PIRQ_A, 0xdcf8}, {PIRQ_A, 0xdcf8}}, 21, 0}, // Slot 1B (J21)
// NOTE: Hotplug disabled on this bus
// ICH-3 PCI bus
{PCI_BUS_ICH3, PCI_DEVFN(0, 0), {{PIRQ_A, 0xdcf8}, UNUSED_INTERRUPT, UNUSED_INTERRUPT, UNUSED_INTERRUPT}, 0, 0}, // Video
{PCI_BUS_ICH3, PCI_DEVFN(2, 0), {{PIRQ_C, 0xdcf8}, {PIRQ_D, 0xdcf8}, {PIRQ_A, 0xdcf8}, {PIRQ_B, 0xdcf8}}, 11, 0}, // Debug slot (J11)
}
};
unsigned long write_pirq_routing_table(unsigned long addr)
{
return copy_pirq_routing_table(addr, &intel_irq_routing_table);
}
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