--- /dev/null
+@ vim:filetype=armasm
+#include <sys/syscall.h>
+
+
+.global sys_cacheflush @ void *start_addr, void *end_addr
+
+sys_cacheflush:
+ mov r2, #0
+#ifdef __ARM_EABI__
+ /* EABI version */
+ str r7, [sp, #-4]!
+ mov r7, #(__ARM_NR_cacheflush & 0xff)
+ orr r7, r7, #(__ARM_NR_cacheflush & 0x00ff00)
+ orr r7, r7, #(__ARM_NR_cacheflush & 0xff0000)
+ swi 0
+ ldr r7, [sp], #4
+#else
+ /* OABI */
+ swi __ARM_NR_cacheflush
+#endif
+ bx lr
+
+.global spend_cycles
+spend_cycles:
+ mov r0,r0,lsr #2
+ 0:subs r0, r0, #1
+ bne 0b
+ bx lr
+