arch/powerpc/cpu/mpc512x/common.c

   1 #include <common.h>
   2 #include <asm/io.h>
   3
   4 #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
   5
   6 #if defined(CONFIG_SYS_POST_WORD_ADDR)
   7 # define _POST_ADDR     (CONFIG_SYS_POST_WORD_ADDR)
   8 #else
   9 #error echo "No POST word address defined"
  10 #endif
  11
  12 void post_word_store(ulong a)
  13 {
  14         volatile void *save_addr = (volatile void *)(_POST_ADDR);
  15
  16         out_be32(save_addr, a);
  17 }
  18
  19 ulong post_word_load(void)
  20 {
  21         volatile void *save_addr = (volatile void *)(_POST_ADDR);
  22
  23         return in_be32(save_addr);
  24 }
  25 #endif  /* CONFIG_POST || CONFIG_LOGBUFFER */