1 files changed, 9 insertions, 0 deletions

diff --git a/firmware/target/arm/tcc77x/system-target.h b/firmware/target/arm/tcc77x/system-target.h
index 16cfb9127d..55dd52ef47 100644
--- a/firmware/target/arm/tcc77x/system-target.h
+++ b/firmware/target/arm/tcc77x/system-target.h
@@ -34,4 +34,13 @@
 #define inw(a) (*(volatile unsigned short *) (a))
 #define outw(a,b) (*(volatile unsigned short *) (b) = (a))
 
+/* TC32 is configured to 1MHz in clock_init() */
+#define USEC_TIMER  TC32MCNT
+
+static inline void udelay(unsigned usecs)
+{
+    unsigned stop = USEC_TIMER + usecs;
+    while (TIME_BEFORE(USEC_TIMER, stop));
+}
+
 #endif /* SYSTEM_TARGET_H */