| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2011 Kyösti Mälkki <kyosti.malkki@gmail.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #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_82801DB_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/i386/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_ROOT, PCI_DEVFN(31, 0), {{PIRQ_C, 0xdcf8}, {PIRQ_B, 0xdcf8}, UNUSED_INTERRUPT, UNUSED_INTERRUPT}, 0, 0}, /* IDE / SMBus */ |
| {PCI_BUS_ROOT, PCI_DEVFN(29, 0), {{PIRQ_A, 0xdcf8}, {PIRQ_D, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_H, 0xdcf8}}, 0, 0}, /* USB 1.1 */ |
| |
| {PCI_BUS_P64H2_B, PCI_DEVFN(2, 0) , {{PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}}, 0, 0}, |
| {PCI_BUS_P64H2_B, PCI_DEVFN(3, 0) , {{PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}}, 0, 0}, |
| {PCI_BUS_P64H2_B, PCI_DEVFN(4, 0) , {{PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}}, 0, 0}, /* GbE */ |
| |
| {PCI_BUS_P64H2_A, PCI_DEVFN(2, 0) , {{PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}}, 0, 0}, |
| {PCI_BUS_P64H2_A, PCI_DEVFN(3, 0) , {{PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}}, 0, 0}, |
| {PCI_BUS_P64H2_A, PCI_DEVFN(4, 0) , {{PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}}, 0, 0}, /* SCSI */ |
| |
| {PCI_BUS_ICH4, PCI_DEVFN(3, 0), {{PIRQ_E, 0xdcf8}, {PIRQ_F, 0xdcf8}, {PIRQ_G, 0xdcf8}, {PIRQ_H, 0xdcf8}}, 0, 0}, /* 32-bit slot */ |
| |
| } |
| }; |
| |
| unsigned long write_pirq_routing_table(unsigned long addr) |
| { |
| return copy_pirq_routing_table(addr, &intel_irq_routing_table); |
| } |