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 
putc(char c)12 void __weak putc(char c)
13 {
14 }
15 
puts(const char * s)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 
puthex(unsigned long long val)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 }
38