LXR coreboot/src/mainboard/broadcom/blast/irq

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