arch/mips/boot/compressed/dbg.c

   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/types.h>
  10
  11 void __weak putc(char c)
  12 {
  13 }
  14
  15 void puts(const char *s)
  16 {
  17         char c;
  18         while ((c = *s++) != '\0') {
  19                 putc(c);
  20                 if (c == '\n')
  21                         putc('\r');
  22         }
  23 }
  24
  25 void puthex(unsigned long long val)
  26 {
  27
  28         unsigned char buf[10];
  29         int i;
  30         for (i = 7; i >= 0; i--) {
  31                 buf[i] = "0123456789ABCDEF"[val & 0x0F];
  32                 val >>= 4;
  33         }
  34         buf[8] = '\0';
  35         puts(buf);
  36 }