1#include <linux/linkage.h> 2#include <asm/assembler.h> 3 4#include CONFIG_DEBUG_LL_INCLUDE 5 6ENTRY(putc) 7 addruart r1, r2, r3 8 waituart r3, r1 9 senduart r0, r1 10 busyuart r3, r1 11 mov pc, lr 12ENDPROC(putc) 13