blob: 6b774bdbe8a43efcc640b2d3301def49b5b0f03a [file] [log] [blame]
Simon Glassd1cd0452014-11-12 22:42:09 -07001/*
2 * Copyright (c) 2014 Google, Inc
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
7#ifndef _post_h
8#define _post_h
9
10/* port to use for post codes */
11#define POST_PORT 0x80
12
13/* post codes which represent various stages of init */
14#define POST_START 0x1e
15#define POST_CAR_START 0x1f
Simon Glass70a09c62014-11-12 22:42:10 -070016#define POST_CAR_SIPI 0x20
17#define POST_CAR_MTRR 0x21
18#define POST_CAR_UNCACHEABLE 0x22
19#define POST_CAR_BASE_ADDRESS 0x23
20#define POST_CAR_MASK 0x24
21#define POST_CAR_FILL 0x25
22#define POST_CAR_ROM_CACHE 0x26
23#define POST_CAR_MRC_CACHE 0x27
24#define POST_CAR_CPU_CACHE 0x28
Simon Glassd1cd0452014-11-12 22:42:09 -070025#define POST_START_STACK 0x29
26#define POST_START_DONE 0x2a
Simon Glass70a09c62014-11-12 22:42:10 -070027#define POST_CPU_INIT 0x2b
Simon Glass8e0df062014-11-12 22:42:23 -070028#define POST_EARLY_INIT 0x2c
29#define POST_CPU_INFO 0x2d
Simon Glass65dd74a2014-11-12 22:42:28 -070030#define POST_PRE_MRC 0x2e
31#define POST_MRC 0x2f
Simon Glassfde46772016-03-06 19:28:18 -070032#define POST_DRAM 0x30
33#define POST_LAPIC 0x31
Simon Glass65dd74a2014-11-12 22:42:28 -070034
35#define POST_RAM_FAILURE 0xea
Bin Meng95a5a472014-12-12 21:05:30 +080036#define POST_BIST_FAILURE 0xeb
37#define POST_CAR_FAILURE 0xec
Simon Glassd1cd0452014-11-12 22:42:09 -070038
39/* Output a post code using al - value must be 0 to 0xff */
40#ifdef __ASSEMBLY__
41#define post_code(value) \
42 movb $value, %al; \
43 outb %al, $POST_PORT
44#else
Simon Glass70a09c62014-11-12 22:42:10 -070045#include <asm/io.h>
46
Simon Glassd1cd0452014-11-12 22:42:09 -070047static inline void post_code(int code)
48{
49 outb(code, POST_PORT);
50}
51#endif
52
53#endif