src/mainboard/iwill/DK8X/failover.c

   1 #define ASSEMBLY 1
   2 #include <stdint.h>
   3 #include <device/pci_def.h>
   4 #include <device/pci_ids.h>
   5 #include <arch/io.h>
   6 #include <arch/romcc_io.h>
   7 #include <cpu/x86/lapic.h>
   8 #include "pc80/mc146818rtc_early.c"
   9 #include "southbridge/amd/amd8111/amd8111_enable_rom.c"
  10 #include "northbridge/amd/amdk8/early_ht.c"
  11 #include "cpu/x86/lapic/boot_cpu.c"
  12 #include "cpu/x86/mtrr/earlymtrr.c"
  13 #include "northbridge/amd/amdk8/reset_test.c"
  14
  15 static unsigned long main(unsigned long bist)
  16 {
  17         unsigned nodeid;
  18
  19         /* Make cerain my local apic is useable */
  20         enable_lapic();
  21
  22         /* Is this a cpu only reset? */
  23         if (early_mtrr_init_detected()) {
  24                 if (last_boot_normal()) {
  25                         goto normal_image;
  26                 } else {
  27                         goto fallback_image;
  28                 }
  29         }
  30         /* Is this a secondary cpu? */
  31         if (!boot_cpu()) {
  32                 if (last_boot_normal()) {
  33                         goto normal_image;
  34                 } else {
  35                         goto fallback_image;
  36                 }
  37         }
  38
  39
  40         /* Nothing special needs to be done to find bus 0 */
  41         /* Allow the HT devices to be found */
  42         enumerate_ht_chain();
  43
  44         /* Setup the 8111 */
  45         amd8111_enable_rom();
  46
  47         /* Is this a deliberate reset by the bios */
  48         if (bios_reset_detected() && last_boot_normal()) {
  49                 goto normal_image;
  50         }
  51         /* This is the primary cpu how should I boot? */
  52         else if (do_normal_boot()) {
  53                 goto normal_image;
  54         }
  55         else {
  56                 goto fallback_image;
  57         }
  58  normal_image:
  59         asm volatile ("jmp __normal_image"
  60                 : /* outputs */
  61                 : "a" (bist) /* inputs */
  62                 : /* clobbers */
  63                 );
  64  fallback_image:
  65         return bist;
  66 }