src/mainboard/amd/serengeti_cheetah_fam10/irq_tables.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2007 Advanced Micro Devices, Inc.
   5  *
   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.
   9  *
  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.
  14  *
  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
  18  */
  19
  20
  21 #include <console/console.h>
  22 #include <device/pci.h>
  23 #include <string.h>
  24 #include <stdint.h>
  25 #include <arch/pirq_routing.h>
  26 #include <cpu/amd/amdfam10_sysconf.h>
  27
  28 #include "mb_sysconf.h"
  29
  30 static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn, u8 link0, u16 bitmap0,
  31                 u8 link1, u16 bitmap1, u8 link2, u16 bitmap2,u8 link3, u16 bitmap3,
  32                 u8 slot, u8 rfu)
  33 {
  34         pirq_info->bus = bus;
  35         pirq_info->devfn = devfn;
  36                 pirq_info->irq[0].link = link0;
  37                 pirq_info->irq[0].bitmap = bitmap0;
  38                 pirq_info->irq[1].link = link1;
  39                 pirq_info->irq[1].bitmap = bitmap1;
  40                 pirq_info->irq[2].link = link2;
  41                 pirq_info->irq[2].bitmap = bitmap2;
  42                 pirq_info->irq[3].link = link3;
  43                 pirq_info->irq[3].bitmap = bitmap3;
  44         pirq_info->slot = slot;
  45         pirq_info->rfu = rfu;
  46 }
  47
  48
  49 extern void get_bus_conf(void);
  50
  51 unsigned long write_pirq_routing_table(unsigned long addr)
  52 {
  53
  54         struct irq_routing_table *pirq;
  55         struct irq_info *pirq_info;
  56         u32 slot_num;
  57         u8 *v;
  58
  59         u8 sum=0;
  60         int i;
  61
  62         struct mb_sysconf_t *m;
  63
  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
  65
  66         m = sysconf.mb;
  67
  68         /* Align the table to be 16 byte aligned. */
  69         addr += 15;
  70         addr &= ~15;
  71
  72         /* This table must be betweeen 0xf0000 & 0x100000 */
  73         printk_info("Writing IRQ routing tables to 0x%x...", addr);
  74
  75         pirq = (void *)(addr);
  76         v = (u8 *)(addr);
  77
  78         pirq->signature = PIRQ_SIGNATURE;
  79         pirq->version  = PIRQ_VERSION;
  80
  81         pirq->rtr_bus = m->bus_8111_0;
  82         pirq->rtr_devfn = ((sysconf.sbdn+1)<<3)|0;
  83
  84         pirq->exclusive_irqs = 0;
  85
  86         pirq->rtr_vendor = 0x1022;
  87         pirq->rtr_device = 0x746b;
  88
  89         pirq->miniport_data = 0;
  90
  91         memset(pirq->rfu, 0, sizeof(pirq->rfu));
  92
  93         pirq_info = (void *) ( &pirq->checksum + 1);
  94         slot_num = 0;
  95
  96
  97         //pci bridge
  98         write_pirq_info(pirq_info, m->bus_8111_0, ((sysconf.sbdn+1)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
  99         pirq_info++; slot_num++;
 100
 101
 102         //pcix bridge
 103 //      write_pirq_info(pirq_info, m->bus_8132_0, (sbdn3<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
 104 //      pirq_info++; slot_num++;
 105
 106         int j=0;
 107
 108         for(i=1; i< sysconf.hc_possible_num; i++) {
 109                 if(!(sysconf.pci1234[i] & 0x1) ) continue;
 110                 u32 busn = (sysconf.pci1234[i] >> 12) & 0xff;
 111                 u32 devn = sysconf.hcdn[i] & 0xff;
 112
 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++;
 115                 j++;
 116
 117         }
 118
 119 #if CONFIG_CBB
 120         write_pirq_info(pirq_info, CONFIG_CBB, (0<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
 121         pirq_info++; slot_num++;
 122         if(sysconf.nodes>32) {
 123                 write_pirq_info(pirq_info, CONFIG_CBB-1, (0<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
 124                 pirq_info++; slot_num++;
 125         }
 126 #endif
 127
 128         pirq->size = 32 + 16 * slot_num;
 129
 130         for (i = 0; i < pirq->size; i++) {
 131                 sum += v[i];
 132         }
 133
 134         sum = pirq->checksum - sum;
 135
 136         if (sum != pirq->checksum) {
 137                 pirq->checksum = sum;
 138         }
 139
 140         printk_info("done.\n");
 141
 142         return  (unsigned long) pirq_info;
 143
 144 }