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mpc5121: add common post_word_load/store code

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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>
This commit is contained in:
Anatolij Gustschin 2010-04-24 19:27:10 +02:00 committed by Wolfgang Denk
parent a3921eefa1
commit 2ebdb9a9d7
2 changed files with 26 additions and 0 deletions
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1
arch/powerpc/cpu/mpc512x/Makefile
View File

@ -29,6 +29,7 @@ LIB = $(obj)lib$(CPU).a
START = start.o
COBJS-y := cpu.o
COBJS-y += traps.o
COBJS-y += common.o
COBJS-y += cpu_init.o
COBJS-y += fixed_sdram.o
COBJS-y += i2c.o

25
arch/powerpc/cpu/mpc512x/common.c Normal file
View File

@ -0,0 +1,25 @@
#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 */