src/mainboard/tyan/s2885/irq_tables.c

   1 /* This file was generated by getpir.c, do not modify!
   2    (but if you do, please run checkpir on it to verify)
   3    Contains the IRQ Routing Table dumped directly from your memory , wich BIOS sets up
   4
   5    Documentation at : http://www.microsoft.com/hwdev/busbios/PCIIRQ.HTM
   6 */
   7 #include <console/console.h>
   8 #include <device/pci.h>
   9 #include <string.h>
  10 #include <stdint.h>
  11 #include <arch/pirq_routing.h>
  12
  13 #include <cpu/amd/amdk8_sysconf.h>
  14
  15 static void write_pirq_info(struct irq_info *pirq_info, uint8_t bus, uint8_t devfn, uint8_t link0, uint16_t bitmap0,
  16                 uint8_t link1, uint16_t bitmap1, uint8_t link2, uint16_t bitmap2,uint8_t link3, uint16_t bitmap3,
  17                 uint8_t slot, uint8_t rfu)
  18 {
  19         pirq_info->bus = bus;
  20         pirq_info->devfn = devfn;
  21                 pirq_info->irq[0].link = link0;
  22                 pirq_info->irq[0].bitmap = bitmap0;
  23                 pirq_info->irq[1].link = link1;
  24                 pirq_info->irq[1].bitmap = bitmap1;
  25                 pirq_info->irq[2].link = link2;
  26                 pirq_info->irq[2].bitmap = bitmap2;
  27                 pirq_info->irq[3].link = link3;
  28                 pirq_info->irq[3].bitmap = bitmap3;
  29         pirq_info->slot = slot;
  30         pirq_info->rfu = rfu;
  31 }
  32
  33 extern  unsigned char bus_8131_0;
  34 extern  unsigned char bus_8131_1;
  35 extern  unsigned char bus_8131_2;
  36 extern  unsigned char bus_8111_0;
  37 extern  unsigned char bus_8111_1;
  38 extern  unsigned char bus_8151_0;
  39 extern  unsigned char bus_8151_1;
  40
  41 extern  unsigned sbdn3;
  42 extern  unsigned sbdn5;
  43
  44 extern void get_bus_conf(void);
  45
  46 unsigned long write_pirq_routing_table(unsigned long addr)
  47 {
  48
  49         struct irq_routing_table *pirq;
  50         struct irq_info *pirq_info;
  51         unsigned slot_num;
  52         uint8_t *v;
  53
  54         uint8_t sum=0;
  55         int i;
  56
  57         get_bus_conf(); // it will find out all bus num and apic that share with mptable.c and mptable.c and acpi_tables.c
  58
  59         /* Align the table to be 16 byte aligned. */
  60         addr += 15;
  61         addr &= ~15;
  62
  63         /* This table must be betweeen 0xf0000 & 0x100000 */
  64         printk(BIOS_INFO, "Writing IRQ routing tables to 0x%x...", addr);
  65
  66         pirq = (void *)(addr);
  67         v = (uint8_t *)(addr);
  68
  69         pirq->signature = PIRQ_SIGNATURE;
  70         pirq->version  = PIRQ_VERSION;
  71
  72         pirq->rtr_bus = bus_8111_0;
  73         pirq->rtr_devfn = ((sysconf.sbdn+1)<<3)|0;
  74
  75         pirq->exclusive_irqs = 0;
  76
  77         pirq->rtr_vendor = 0x1022;
  78         pirq->rtr_device = 0x746b;
  79
  80         pirq->miniport_data = 0;
  81
  82         memset(pirq->rfu, 0, sizeof(pirq->rfu));
  83
  84         pirq_info = (void *) ( &pirq->checksum + 1);
  85         slot_num = 0;
  86 //pci bridge
  87         write_pirq_info(pirq_info, bus_8111_0, ((sysconf.sbdn+1)<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
  88         pirq_info++; slot_num++;
  89 //pcix bridge
  90 //        write_pirq_info(pirq_info, bus_8131_0, (sbdn3<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
  91 //        pirq_info++; slot_num++;
  92 //agp bridge
  93         write_pirq_info(pirq_info, bus_8151_0, (sbdn5<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
  94
  95         pirq_info++; slot_num++;
  96
  97         pirq->size = 32 + 16 * slot_num;
  98
  99         for (i = 0; i < pirq->size; i++)
 100                 sum += v[i];
 101
 102         sum = pirq->checksum - sum;
 103
 104         if (sum != pirq->checksum) {
 105                 pirq->checksum = sum;
 106         }
 107
 108         printk(BIOS_INFO, "done.\n");
 109
 110         return  (unsigned long) pirq_info;
 111
 112 }