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-rw-r--r--chip/mec1322/clock.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/chip/mec1322/clock.c b/chip/mec1322/clock.c
index 9cef11686f..c5ce698b2a 100644
--- a/chip/mec1322/clock.c
+++ b/chip/mec1322/clock.c
@@ -45,8 +45,8 @@ static int freq = 48000000;
void clock_wait_cycles(uint32_t cycles)
{
- asm("1: subs %0, #1\n"
- " bne 1b\n" :: "r"(cycles));
+ asm volatile("1: subs %0, #1\n"
+ " bne 1b\n" : "+r"(cycles));
}
int clock_get_freq(void)