diff options
Diffstat (limited to 'arch/arm/cpu/arm926ejs/cpu.c')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/cpu.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/cpu.c b/arch/arm/cpu/arm926ejs/cpu.c index 93d7a02ed4c..2ce413a7f86 100644 --- a/arch/arm/cpu/arm926ejs/cpu.c +++ b/arch/arm/cpu/arm926ejs/cpu.c @@ -21,6 +21,19 @@ static void cache_flush(void); +/************************************************************ + * sdelay() - simple spin loop. Will be constant time as + * its generally used in bypass conditions only. This + * is necessary until timers are accessible. + * + * not inline to increase chances its in cache when called + *************************************************************/ +void sdelay(unsigned long loops) +{ + __asm__ volatile ("1:\n" "subs %0, %1, #1\n" + "bne 1b":"=r" (loops):"0"(loops)); +} + int cleanup_before_linux (void) { /* |