src/mainboard/broadcom/blast/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
  22         pirq_info->irq[0].link = link0;
  23         pirq_info->irq[0].bitmap = bitmap0;
  24         pirq_info->irq[1].link = link1;
  25         pirq_info->irq[1].bitmap = bitmap1;
  26         pirq_info->irq[2].link = link2;
  27         pirq_info->irq[2].bitmap = bitmap2;
  28         pirq_info->irq[3].link = link3;
  29         pirq_info->irq[3].bitmap = bitmap3;
  30
  31         pirq_info->slot = slot;
  32         pirq_info->rfu = rfu;
  33 }
  34
  35 extern  unsigned char bus_isa;
  36 extern  unsigned char bus_bcm5780[7];
  37 extern  unsigned char bus_bcm5785_0;
  38 extern  unsigned char bus_bcm5785_1;
  39 extern  unsigned apicid_bcm5785[3];
  40
  41 extern  unsigned sbdn2;
  42
  43
  44
  45 unsigned long write_pirq_routing_table(unsigned long addr)
  46 {
  47
  48         struct irq_routing_table *pirq;
  49         struct irq_info *pirq_info;
  50         unsigned slot_num;
  51         uint8_t *v;
  52
  53         uint8_t sum=0;
  54         int i;
  55
  56         get_bus_conf();
  57
  58         /* Align the table to be 16 byte aligned. */
  59         addr += 15;
  60         addr &= ~15;
  61
  62         /* This table must be betweeen 0xf0000 & 0x100000 */
  63         printk(BIOS_INFO, "Writing IRQ routing tables to 0x%lx...", addr);
  64
  65         pirq = (void *)(addr);
  66         v = (uint8_t *)(addr);
  67
  68         pirq->signature = PIRQ_SIGNATURE;
  69         pirq->version  = PIRQ_VERSION;
  70
  71         pirq->rtr_bus = bus_bcm5785_0;
  72         pirq->rtr_devfn = (sysconf.sbdn<<3)|0;
  73
  74         pirq->exclusive_irqs = 0;
  75
  76         pirq->rtr_vendor = 0x1166;
  77         pirq->rtr_device = 0x0036;
  78
  79         pirq->miniport_data = 0;
  80
  81         memset(pirq->rfu, 0, sizeof(pirq->rfu));
  82
  83         get_bus_conf(); // it will find out all bus num and apic that share with mptable.c and mptable.c and acpi_tables.c
  84
  85         pirq_info = (void *) ( &pirq->checksum + 1);
  86         slot_num = 0;
  87 //pci bridge
  88         write_pirq_info(pirq_info, bus_bcm5785_0, (sysconf.sbdn<<3)|0, 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, 0);
  89         pirq_info++; slot_num++;
  90
  91         pirq->size = 32 + 16 * slot_num;
  92
  93         for (i = 0; i < pirq->size; i++)
  94                 sum += v[i];
  95
  96         sum = pirq->checksum - sum;
  97
  98         if (sum != pirq->checksum) {
  99                 pirq->checksum = sum;
 100         }
 101
 102         printk(BIOS_INFO, "done.\n");
 103
 104         return  (unsigned long) pirq_info;
 105
 106 }