2 * This file is part of the coreboot project.
4 * Copyright (C) 2011 Advanced Micro Devices, Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #include <console/console.h>
22 #include <device/pci.h>
25 #include <arch/pirq_routing.h>
26 //#include <cpu/amd/amdfam10_sysconf.h>
30 static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
31 u8 link0, u16 bitmap0, u8 link1, u16 bitmap1,
32 u8 link2, u16 bitmap2, u8 link3, u16 bitmap3,
36 pirq_info->devfn = devfn;
37 pirq_info->irq[0].link = link0;
38 pirq_info->irq[0].bitmap = bitmap0;
39 pirq_info->irq[1].link = link1;
40 pirq_info->irq[1].bitmap = bitmap1;
41 pirq_info->irq[2].link = link2;
42 pirq_info->irq[2].bitmap = bitmap2;
43 pirq_info->irq[3].link = link3;
44 pirq_info->irq[3].bitmap = bitmap3;
45 pirq_info->slot = slot;
49 extern u8 bus_sb800[2];
50 extern unsigned long sbdn_sb800;
52 unsigned long write_pirq_routing_table(unsigned long addr)
55 struct irq_routing_table *pirq;
56 struct irq_info *pirq_info;
64 get_bus_conf(); /* it will find out all bus num and apic that share with mptable.c and mptable.c and acpi_tables.c */
67 /* Align the table to be 16 byte aligned. */
71 /* This table must be betweeen 0xf0000 & 0x100000 */
72 printk(BIOS_INFO, "Writing IRQ routing tables to 0x%lx...", addr);
74 pirq = (void *)(addr);
77 pirq->signature = PIRQ_SIGNATURE;
78 pirq->version = PIRQ_VERSION;
80 pirq->rtr_bus = bus_sb800[0];
81 pirq->rtr_devfn = ((sbdn_sb800 + 0x14) << 3) | 4;
83 pirq->exclusive_irqs = 0;
85 pirq->rtr_vendor = 0x1002;
86 pirq->rtr_device = 0x4384;
88 pirq->miniport_data = 0;
90 memset(pirq->rfu, 0, sizeof(pirq->rfu));
92 pirq_info = (void *)(&pirq->checksum + 1);
97 write_pirq_info(pirq_info, bus_sb800[0], ((sbdn_sb800 + 0x14) << 3) | 4,
98 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
108 pirq->size = 32 + 16 * slot_num;
110 for (i = 0; i < pirq->size; i++)
113 sum = pirq->checksum - sum;
115 if (sum != pirq->checksum) {
116 pirq->checksum = sum;
119 printk(BIOS_INFO, "write_pirq_routing_table done.\n");
121 return (unsigned long)pirq_info;