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| author | Ingo van Lil <inguin@gmx.de> | 2009-11-24 14:09:21 +0100 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2009-12-05 01:08:53 +0100 |
| commit | 3eb90bad651fab39cffba750ec4421a9c01d60e7 (patch) | |
| tree | 63b21148a041603db252203a422dc465e862e016 /lib_m68k | |
| parent | 1c409bc7101a24ecd47a13a4e851845d66dc23ce (diff) | |
| download | u-boot-3eb90bad651fab39cffba750ec4421a9c01d60e7.tar.gz u-boot-3eb90bad651fab39cffba750ec4421a9c01d60e7.tar.xz u-boot-3eb90bad651fab39cffba750ec4421a9c01d60e7.zip | |
Generic udelay() with watchdog support
According to the PPC reference implementation the udelay() function is
responsible for resetting the watchdog timer as frequently as needed.
Most other architectures do not meet that requirement, so long-running
operations might result in a watchdog reset.
This patch adds a generic udelay() function which takes care of
resetting the watchdog before calling an architecture-specific
__udelay().
Signed-off-by: Ingo van Lil <inguin@gmx.de>
Diffstat (limited to 'lib_m68k')
| -rw-r--r-- | lib_m68k/time.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib_m68k/time.c b/lib_m68k/time.c index 29269f655b..7eaea5e7f7 100644 --- a/lib_m68k/time.c +++ b/lib_m68k/time.c @@ -47,7 +47,7 @@ static volatile ulong timestamp = 0; #endif extern void dtimer_intr_setup(void); -void udelay(unsigned long usec) +void __udelay(unsigned long usec) { volatile dtmr_t *timerp = (dtmr_t *) (CONFIG_SYS_UDELAY_BASE); uint start, now, tmp; @@ -139,7 +139,7 @@ void set_timer(ulong t) static unsigned short lastinc; -void udelay(unsigned long usec) +void __udelay(unsigned long usec) { volatile pit_t *timerp = (pit_t *) (CONFIG_SYS_UDELAY_BASE); uint tmp; |