src/mainboard/tyan/s2912_fam10/irq_tables.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2007 AMD
   5  * Written by Yinghai Lu <yinghailu@amd.com> for AMD.
   6  *
   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.
  11  *
  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.
  16  *
  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
  20  */
  21
  22 /* This file was generated by getpir.c, do not modify!
  23  * (but if you do, please run checkpir on it to verify)
  24  * Contains the IRQ Routing Table dumped directly from your memory , wich BIOS sets up
  25
  26  * Documentation at : http://www.microsoft.com/hwdev/busbios/PCIIRQ.HTM
  27 */
  28 #include <console/console.h>
  29 #include <device/pci.h>
  30 #include <string.h>
  31 #include <stdint.h>
  32 #include <arch/pirq_routing.h>
  33
  34 #include <cpu/amd/amdfam10_sysconf.h>
  35 #include "mb_sysconf.h"
  36
  37 static void write_pirq_info(struct irq_info *pirq_info, uint8_t bus, uint8_t devfn, uint8_t link0, uint16_t bitmap0,
  38                 uint8_t link1, uint16_t bitmap1, uint8_t link2, uint16_t bitmap2,uint8_t link3, uint16_t bitmap3,
  39                 uint8_t slot, uint8_t rfu)
  40 {
  41         pirq_info->bus = bus;
  42         pirq_info->devfn = devfn;
  43                 pirq_info->irq[0].link = link0;
  44                 pirq_info->irq[0].bitmap = bitmap0;
  45                 pirq_info->irq[1].link = link1;
  46                 pirq_info->irq[1].bitmap = bitmap1;
  47                 pirq_info->irq[2].link = link2;
  48                 pirq_info->irq[2].bitmap = bitmap2;
  49                 pirq_info->irq[3].link = link3;
  50                 pirq_info->irq[3].bitmap = bitmap3;
  51         pirq_info->slot = slot;
  52         pirq_info->rfu = rfu;
  53 }
  54
  55
  56
  57 unsigned long write_pirq_routing_table(unsigned long addr)
  58 {
  59
  60         struct irq_routing_table *pirq;
  61         struct irq_info *pirq_info;
  62         unsigned slot_num;
  63         uint8_t *v;
  64         struct mb_sysconf_t *m;
  65         unsigned sbdn;
  66
  67         uint8_t sum=0;
  68         int i;
  69
  70         get_bus_conf(); // it will find out all bus num and apic that share with mptable.c and mptable.c and acpi_tables.c
  71         sbdn = sysconf.sbdn;
  72         m = sysconf.mb;
  73
  74         /* Align the table to be 16 byte aligned. */
  75         addr += 15;
  76         addr &= ~15;
  77
  78         /* This table must be betweeen 0xf0000 & 0x100000 */
  79         printk(BIOS_INFO, "Writing IRQ routing tables to 0x%lx...", addr);
  80
  81         pirq = (void *)(addr);
  82         v = (uint8_t *)(addr);
  83
  84         pirq->signature = PIRQ_SIGNATURE;
  85         pirq->version  = PIRQ_VERSION;
  86
  87         pirq->rtr_bus = m->bus_mcp55[0];
  88         pirq->rtr_devfn = ((sbdn+6)<<3)|0;
  89
  90         pirq->exclusive_irqs = 0;
  91
  92         pirq->rtr_vendor = 0x10de;
  93         pirq->rtr_device = 0x0370;
  94
  95         pirq->miniport_data = 0;
  96
  97         memset(pirq->rfu, 0, sizeof(pirq->rfu));
  98
  99         pirq_info = (void *) ( &pirq->checksum + 1);
 100         slot_num = 0;
 101 //pci bridge
 102         write_pirq_info(pirq_info, m->bus_mcp55[0], ((sbdn+6)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
 103         pirq_info++; slot_num++;
 104
 105         for(i=1; i< sysconf.hc_possible_num; i++) {
 106                 if(!(sysconf.pci1234[i] & 0x1) ) continue;
 107                 unsigned busn = (sysconf.pci1234[i] >> 12) & 0xff;
 108                 unsigned devn = sysconf.hcdn[i] & 0xff;
 109
 110                 write_pirq_info(pirq_info, busn, (devn<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
 111                 pirq_info++; slot_num++;
 112         }
 113
 114 #if CONFIG_CBB
 115         write_pirq_info(pirq_info, CONFIG_CBB, (0<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
 116         pirq_info++; slot_num++;
 117         if(sysconf.nodes>32) {
 118                 write_pirq_info(pirq_info, CONFIG_CBB-1, (0<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
 119                 pirq_info++; slot_num++;
 120         }
 121 #endif
 122
 123         pirq->size = 32 + 16 * slot_num;
 124
 125         for (i = 0; i < pirq->size; i++)
 126                 sum += v[i];
 127
 128         sum = pirq->checksum - sum;
 129
 130         if (sum != pirq->checksum) {
 131                 pirq->checksum = sum;
 132         }
 133
 134         printk(BIOS_INFO, "done.\n");
 135
 136         return  (unsigned long) pirq_info;
 137
 138 }