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
11void __weak putc(char c)
12{
13}
14
15void 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
25void 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}