diff options
Diffstat (limited to 'firmware/target/arm/tcc77x/system-target.h')
-rw-r--r-- | firmware/target/arm/tcc77x/system-target.h | 9 |
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 @@ | |||
34 | #define inw(a) (*(volatile unsigned short *) (a)) | 34 | #define inw(a) (*(volatile unsigned short *) (a)) |
35 | #define outw(a,b) (*(volatile unsigned short *) (b) = (a)) | 35 | #define outw(a,b) (*(volatile unsigned short *) (b) = (a)) |
36 | 36 | ||
37 | /* TC32 is configured to 1MHz in clock_init() */ | ||
38 | #define USEC_TIMER TC32MCNT | ||
39 | |||
40 | static inline void udelay(unsigned usecs) | ||
41 | { | ||
42 | unsigned stop = USEC_TIMER + usecs; | ||
43 | while (TIME_BEFORE(USEC_TIMER, stop)); | ||
44 | } | ||
45 | |||
37 | #endif /* SYSTEM_TARGET_H */ | 46 | #endif /* SYSTEM_TARGET_H */ |