src/mainboard/Iwill/DK8S2/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 "northbridge/amd/amdk8/reset_test.c"
  13
  14 static unsigned long main(unsigned long bist)
  15 {
  16         unsigned nodeid;
  17
  18         /* Make cerain my local apic is useable */
  19         enable_lapic();
  20
  21         /* Is this a cpu only reset? */
  22         if (cpu_init_detected(nodeid)) {
  23                 if (last_boot_normal()) {
  24                         goto normal_image;
  25                 } else {
  26                         goto cpu_reset;
  27                 }
  28         }
  29         /* Is this a secondary cpu? */
  30         if (!boot_cpu()) {
  31                 if (last_boot_normal()) {
  32                         goto normal_image;
  33                 } else {
  34                         goto fallback_image;
  35                 }
  36         }
  37
  38
  39         /* Nothing special needs to be done to find bus 0 */
  40         /* Allow the HT devices to be found */
  41         enumerate_ht_chain();
  42
  43         /* Setup the 8111 */
  44         amd8111_enable_rom();
  45
  46         /* Is this a deliberate reset by the bios */
  47         if (bios_reset_detected() && last_boot_normal()) {
  48                 goto normal_image;
  49         }
  50         /* This is the primary cpu how should I boot? */
  51         else if (do_normal_boot()) {
  52                 goto normal_image;
  53         }
  54         else {
  55                 goto fallback_image;
  56         }
  57  normal_image:
  58         asm volatile ("jmp __normal_image"
  59                 : /* outputs */
  60                 : "a" (bist) /* inputs */
  61                 : /* clobbers */
  62                 );
  63  cpu_reset:
  64         asm volatile ("jmp __cpu_reset"
  65                 : /* outputs */
  66                 : "a"(bist) /* inputs */
  67                 : /* clobbers */
  68                 );
  69  fallback_image:
  70         return bist;
  71 }