2 * This file is part of the coreboot project.
4 * Copyright (C) 2007 AMD
5 * Written by Yinghai Lu <yinghailu@amd.com> for AMD.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #include <console/console.h>
23 #include <device/pci.h>
26 #include <arch/pirq_routing.h>
27 #include <cpu/amd/amdk8_sysconf.h>
29 static void write_pirq_info(struct irq_info *pirq_info, uint8_t bus,
30 uint8_t devfn, uint8_t link0, uint16_t bitmap0,
31 uint8_t link1, uint16_t bitmap1, uint8_t link2,
32 uint16_t bitmap2, uint8_t link3, uint16_t bitmap3,
33 uint8_t slot, uint8_t rfu)
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 unsigned char bus_isa;
50 extern unsigned char bus_mcp55[8]; // 1
52 extern void get_bus_conf(void);
54 unsigned long write_pirq_routing_table(unsigned long addr)
56 struct irq_routing_table *pirq;
57 struct irq_info *pirq_info;
58 unsigned int slot_num, sbdn;
63 /* Will find out all bus num and apic that share with mptable.c
64 * and mptable.c and acpi_tables.c.
69 /* Align the table to be 16 byte aligned. */
73 /* This table must be betweeen 0xf0000 and 0x100000. */
74 printk_info("Writing IRQ routing tables to 0x%x...", addr);
76 pirq = (void *)(addr);
77 v = (uint8_t *)(addr);
79 pirq->signature = PIRQ_SIGNATURE;
80 pirq->version = PIRQ_VERSION;
81 pirq->rtr_bus = bus_mcp55[0];
82 pirq->rtr_devfn = ((sbdn + 6) << 3) | 0;
83 pirq->exclusive_irqs = 0;
84 pirq->rtr_vendor = 0x10de;
85 pirq->rtr_device = 0x0370; /* TODO: Hm, getpir suggests 0x0364 !? */
86 pirq->miniport_data = 0;
88 memset(pirq->rfu, 0, sizeof(pirq->rfu));
90 pirq_info = (void *)(&pirq->checksum + 1);
93 /* PCI bridge (00:06.0) */
94 write_pirq_info(pirq_info, bus_mcp55[0], ((sbdn + 6) << 3) | 0, 0x1,
95 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
99 pirq->size = 32 + 16 * slot_num;
101 for (i = 0; i < pirq->size; i++)
104 sum = pirq->checksum - sum;
106 if (sum != pirq->checksum)
107 pirq->checksum = sum;
109 printk_info("done.\n");
111 return (unsigned long)pirq_info;