| 1 | // SPDX-License-Identifier: GPL-2.0 |
|---|
| 2 | /* |
|---|
| 3 | * MIPS-specific debug support for pre-boot environment |
|---|
| 4 | * |
|---|
| 5 | * NOTE: putc() is board specific, if your board have a 16550 compatible uart, |
|---|
| 6 | * please select SYS_SUPPORTS_ZBOOT_UART16550 for your machine. otherwise, you |
|---|
| 7 | * need to implement your own putc(). |
|---|
| 8 | */ |
|---|
| 9 | #include <linux/compiler.h> |
|---|
| 10 | #include <linux/types.h> |
|---|
| 11 | |
|---|
| 12 | #include "decompress.h" |
|---|
| 13 | |
|---|
| 14 | void __weak putc(char c) |
|---|
| 15 | { |
|---|
| 16 | } |
|---|
| 17 | |
|---|
| 18 | void puts(const char *s) |
|---|
| 19 | { |
|---|
| 20 | char c; |
|---|
| 21 | while ((c = *s++) != '\0') { |
|---|
| 22 | putc(c); |
|---|
| 23 | if (c == '\n') |
|---|
| 24 | putc('\r'); |
|---|
| 25 | } |
|---|
| 26 | } |
|---|
| 27 | |
|---|
| 28 | void puthex(unsigned long long val) |
|---|
| 29 | { |
|---|
| 30 | |
|---|
| 31 | unsigned char buf[10]; |
|---|
| 32 | int i; |
|---|
| 33 | for (i = 7; i >= 0; i--) { |
|---|
| 34 | buf[i] = "0123456789ABCDEF" [val & 0x0F]; |
|---|
| 35 | val >>= 4; |
|---|
| 36 | } |
|---|
| 37 | buf[8] = '\0'; |
|---|
| 38 | puts(buf); |
|---|
| 39 | } |
|---|
| 40 | |
|---|
