u-boot/arch/powerpc/cpu/mpc512x/common.c
Anatolij Gustschin 2ebdb9a9d7 mpc5121: add common post_word_load/store code
Add common post_word_load/post_word_store routines
for all mpc5121 boards. pdm360ng board POST support
added by subsequent patch needs them.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2010-04-24 22:56:39 +02:00

25 lines
525 B
C

#include <common.h>
#include <asm/io.h>
#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
#if defined(CONFIG_SYS_POST_WORD_ADDR)
# define _POST_ADDR (CONFIG_SYS_POST_WORD_ADDR)
#else
#error echo "No POST word address defined"
#endif
void post_word_store(ulong a)
{
volatile void *save_addr = (volatile void *)(_POST_ADDR);
out_be32(save_addr, a);
}
ulong post_word_load(void)
{
volatile void *save_addr = (volatile void *)(_POST_ADDR);
return in_be32(save_addr);
}
#endif /* CONFIG_POST || CONFIG_LOGBUFFER */