2 * This file is part of the coreboot project.
4 * Copyright (C) 2006 AMD
5 * Written by Yinghai Lu <yinghailu@amd.com> for AMD.
7 * Copyright (C) 2006 MSI
8 * Written by Bingxun Shi <bingxunshi@gmail.com> for MSI.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 /* This file was generated by getpir.c, do not modify!
26 (but if you do, please run checkpir on it to verify)
27 Contains the IRQ Routing Table dumped directly from your memory , wich BIOS sets up
29 Documentation at : http://www.microsoft.com/hwdev/busbios/PCIIRQ.HTM
31 #include <console/console.h>
32 #include <device/pci.h>
35 #include <arch/pirq_routing.h>
37 #include <cpu/amd/amdk8_sysconf.h>
38 #include "mb_sysconf.h"
40 static void write_pirq_info(struct irq_info *pirq_info, uint8_t bus, uint8_t devfn, uint8_t link0, uint16_t bitmap0,
41 uint8_t link1, uint16_t bitmap1, uint8_t link2, uint16_t bitmap2,uint8_t link3, uint16_t bitmap3,
42 uint8_t slot, uint8_t rfu)
45 pirq_info->devfn = devfn;
46 pirq_info->irq[0].link = link0;
47 pirq_info->irq[0].bitmap = bitmap0;
48 pirq_info->irq[1].link = link1;
49 pirq_info->irq[1].bitmap = bitmap1;
50 pirq_info->irq[2].link = link2;
51 pirq_info->irq[2].bitmap = bitmap2;
52 pirq_info->irq[3].link = link3;
53 pirq_info->irq[3].bitmap = bitmap3;
54 pirq_info->slot = slot;
58 extern void get_bus_conf(void);
60 unsigned long write_pirq_routing_table(unsigned long addr)
63 struct irq_routing_table *pirq;
64 struct irq_info *pirq_info;
67 struct mb_sysconf_t *m;
73 get_bus_conf(); // it will find out all bus num and apic that share with mptable.c and mptable.c and acpi_tables.c
77 /* Align the table to be 16 byte aligned. */
81 /* This table must be betweeen 0xf0000 & 0x100000 */
82 printk(BIOS_INFO, "Writing IRQ routing tables to 0x%x...", addr);
84 pirq = (void *)(addr);
85 v = (uint8_t *)(addr);
87 pirq->signature = PIRQ_SIGNATURE;
88 pirq->version = PIRQ_VERSION;
90 pirq->rtr_bus = m->bus_mcp55[0];
91 pirq->rtr_devfn = ((sbdn+6)<<3)|0;
93 pirq->exclusive_irqs = 0;
95 pirq->rtr_vendor = 0x10de;
96 pirq->rtr_device = 0x0370;
98 pirq->miniport_data = 0;
100 memset(pirq->rfu, 0, sizeof(pirq->rfu));
102 pirq_info = (void *) ( &pirq->checksum + 1);
105 write_pirq_info(pirq_info, m->bus_mcp55[0], ((sbdn+6)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
106 pirq_info++; slot_num++;
108 for(i=1; i< sysconf.hc_possible_num; i++) {
109 if(!(sysconf.pci1234[i] & 0x1) ) continue;
110 unsigned busn = (sysconf.pci1234[i] >> 16) & 0xff;
111 unsigned devn = sysconf.hcdn[i] & 0xff;
113 write_pirq_info(pirq_info, busn, (devn<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
114 pirq_info++; slot_num++;
117 pirq->size = 32 + 16 * slot_num;
119 for (i = 0; i < pirq->size; i++)
122 sum = pirq->checksum - sum;
124 if (sum != pirq->checksum) {
125 pirq->checksum = sum;
128 printk(BIOS_INFO, "done.\n");
130 return (unsigned long) pirq_info;