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sc520: Allow boards to override udelay 

If the board has a high precision mico-second timer, it maked sense to use
it instead of the on-chip one

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
This commit is contained in:
Graeme Russ 2010-04-24 00:05:50 +10:00 committed by Wolfgang Denk
parent 95ffaba390
commit 5204566e53
2 changed files with 5 additions and 0 deletions
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4
arch/i386/cpu/sc520/sc520_timer.c
View File

@ -69,7 +69,11 @@ int timer_init(void)
return 0;
}
/* Allow boards to override udelay implementation */
void __udelay(unsigned long usec)
__attribute__((weak, alias("sc520_udelay")));
void sc520_udelay(unsigned long usec)
{
int m = 0;
long u;

1
arch/i386/include/asm/ic/sc520.h
View File

@ -28,6 +28,7 @@
void init_sc520(void);
unsigned long init_sc520_dram(void);
void sc520_udelay(unsigned long usec);
/* Memory mapped configuration registers */
typedef struct sc520_mmcr {