src/arch/x86/init/bootblock_normal.c

   1 #include <bootblock_common.h>
   2 #include <pc80/mc146818rtc.h>
   3
   4 static void main(unsigned long bist)
   5 {
   6         unsigned long entry;
   7         int boot_mode;
   8
   9         if (boot_cpu()) {
  10                 bootblock_northbridge_init();
  11                 bootblock_southbridge_init();
  12                 bootblock_cpu_init();
  13
  14 #if CONFIG_USE_OPTION_TABLE
  15                 sanitize_cmos();
  16 #endif
  17                 boot_mode = do_normal_boot();
  18         } else {
  19
  20                 /* Questionable single byte read from CMOS.
  21                  * Do not add any other CMOS access in the
  22                  * bootblock for AP CPUs.
  23                  */
  24                 boot_mode = last_boot_normal();
  25         }
  26
  27         if (boot_mode)
  28                 entry = findstage("normal/romstage");
  29         else
  30                 entry = findstage("fallback/romstage");
  31
  32         if (entry) call(entry, bist);
  33
  34         /* run fallback if normal can't be found */
  35         entry = findstage("fallback/romstage");
  36         if (entry) call(entry, bist);
  37
  38         /* duh. we're stuck */
  39         asm volatile ("1:\n\thlt\n\tjmp 1b\n\t");
  40 }
  41