Linux Kernel  3.7.1
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dbg.c
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1 /*
2  * MIPS-specific debug support for pre-boot environment
3  *
4  * NOTE: putc() is board specific, if your board have a 16550 compatible uart,
5  * please select SYS_SUPPORTS_ZBOOT_UART16550 for your machine. othewise, you
6  * need to implement your own putc().
7  */
8 #include <linux/compiler.h>
9 #include <linux/init.h>
10 #include <linux/types.h>
11 
12 void __weak putc(char c)
13 {
14 }
15 
16 void puts(const char *s)
17 {
18  char c;
19  while ((c = *s++) != '\0') {
20  putc(c);
21  if (c == '\n')
22  putc('\r');
23  }
24 }
25 
26 void puthex(unsigned long long val)
27 {
28 
29  unsigned char buf[10];
30  int i;
31  for (i = 7; i >= 0; i--) {
32  buf[i] = "0123456789ABCDEF"[val & 0x0F];
33  val >>= 4;
34  }
35  buf[8] = '\0';
36  puts(buf);
37 }