1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * (C) Copyright 2002
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 *
6 * (C) Copyright 2010
7 * Michael Zaidman, Kodak, michael.zaidman@kodak.com
8 * post_word_{load|store} cleanup.
9 */
10#ifndef _POST_H
11#define _POST_H
12
13#ifndef	__ASSEMBLY__
14#include <asm/io.h>
15
16#if defined(CONFIG_POST)
17
18#ifndef CFG_POST_EXTERNAL_WORD_FUNCS
19#ifdef CFG_SYS_POST_WORD_ADDR
20#define _POST_WORD_ADDR	CFG_SYS_POST_WORD_ADDR
21#else
22
23#if defined(CONFIG_ARCH_MPC8360)
24#include <linux/immap_qe.h>
25#define _POST_WORD_ADDR	(CONFIG_SYS_IMMR + CPM_POST_WORD_ADDR)
26
27#elif defined (CONFIG_MPC85xx)
28#include <asm/immap_85xx.h>
29#define _POST_WORD_ADDR	(CONFIG_SYS_IMMR + CFG_SYS_MPC85xx_PIC_OFFSET + \
30				offsetof(ccsr_pic_t, tfrr))
31#endif
32
33#ifndef _POST_WORD_ADDR
34#error "_POST_WORD_ADDR currently not implemented for this platform!"
35#endif
36#endif /* CFG_SYS_POST_WORD_ADDR */
37
38static inline ulong post_word_load (void)
39{
40	return in_le32((volatile void *)(_POST_WORD_ADDR));
41}
42
43static inline void post_word_store (ulong value)
44{
45	out_le32((volatile void *)(_POST_WORD_ADDR), value);
46}
47
48#else
49
50extern ulong post_word_load(void);
51extern void post_word_store(ulong value);
52
53#endif /* CFG_POST_EXTERNAL_WORD_FUNCS */
54#endif /* defined (CONFIG_POST) */
55#endif /* __ASSEMBLY__ */
56
57#ifdef CONFIG_POST
58
59#define POST_POWERON		0x01	/* test runs on power-on booting */
60#define POST_NORMAL		0x02	/* test runs on normal booting */
61#define POST_SLOWTEST		0x04	/* test is slow, enabled by key press */
62#define POST_POWERTEST		0x08	/* test runs after watchdog reset */
63
64#define POST_COLDBOOT		0x80	/* first boot after power-on */
65
66#define POST_ROM		0x0100	/* test runs in ROM */
67#define POST_RAM		0x0200	/* test runs in RAM */
68#define POST_MANUAL		0x0400	/* test runs on diag command */
69#define POST_REBOOT		0x0800	/* test may cause rebooting */
70#define POST_PREREL		0x1000  /* test runs before relocation */
71
72#define POST_CRITICAL		0x2000	/* Use failbootcmd if test failed */
73#define POST_STOP		0x4000	/* Interrupt POST sequence on fail */
74
75#define POST_MEM		(POST_RAM | POST_ROM)
76#define POST_ALWAYS		(POST_NORMAL	| \
77				 POST_SLOWTEST	| \
78				 POST_MANUAL	| \
79				 POST_POWERON	)
80
81#define POST_FAIL_SAVE		0x80
82
83#define POST_BEFORE		1
84#define POST_AFTER		0
85#define POST_PASSED		1
86#define POST_FAILED		0
87
88#ifndef	__ASSEMBLY__
89
90struct post_test {
91	char *name;
92	char *cmd;
93	char *desc;
94	int flags;
95	int (*test) (int flags);
96	int (*init_f) (void);
97	void (*reloc) (void);
98	unsigned long testid;
99};
100int post_init_f (void);
101void post_bootmode_init (void);
102int post_bootmode_get (unsigned int * last_test);
103void post_bootmode_clear (void);
104int post_run (char *name, int flags);
105int post_info (char *name);
106int post_log (char *format, ...);
107unsigned long post_time_ms (unsigned long base);
108
109/**
110 * post_output_backlog() - Print POST results
111 *
112 * Print POST results during the generic board init sequence, after
113 * relocation.
114 *
115 * Return: 0 if OK
116 */
117int post_output_backlog(void);
118
119extern struct post_test post_list[];
120extern unsigned int post_list_size;
121extern int post_hotkeys_pressed(void);
122extern int memory_post_test(int flags);
123
124/*
125 *  If GCC is configured to use a version of GAS that supports
126 * the .gnu_attribute directive, it will use that directive to
127 * record certain properties of the output code.
128 *  This feature is new to GCC 4.3.0.
129 *  .gnu_attribute is new to GAS 2.18.
130 */
131#if (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
132/* Tag_GNU_Power_ABI_FP/soft-float */
133#define GNU_FPOST_ATTR	asm(".gnu_attribute	4, 2");
134#else
135#define GNU_FPOST_ATTR
136#endif /* __GNUC__ */
137#endif /* __ASSEMBLY__ */
138
139#define CFG_SYS_POST_RTC		0x00000001
140#define CFG_SYS_POST_WATCHDOG	0x00000002
141#define CFG_SYS_POST_MEMORY		0x00000004
142#define CFG_SYS_POST_CPU		0x00000008
143#define CFG_SYS_POST_I2C		0x00000010
144#define CFG_SYS_POST_CACHE		0x00000020
145#define CFG_SYS_POST_UART		0x00000040
146#define CFG_SYS_POST_ETHER		0x00000080
147#define CFG_SYS_POST_USB		0x00000200
148#define CFG_SYS_POST_SPR		0x00000400
149#define CFG_SYS_POST_SYSMON		0x00000800
150#define CFG_SYS_POST_DSP		0x00001000
151#define CFG_SYS_POST_OCM		0x00002000
152#define CFG_SYS_POST_FPU		0x00004000
153#define CFG_SYS_POST_ECC		0x00008000
154#define CFG_SYS_POST_BSPEC1		0x00010000
155#define CFG_SYS_POST_BSPEC2		0x00020000
156#define CFG_SYS_POST_BSPEC3		0x00040000
157#define CFG_SYS_POST_BSPEC4		0x00080000
158#define CFG_SYS_POST_BSPEC5		0x00100000
159#define CFG_SYS_POST_CODEC		0x00200000
160#define CFG_SYS_POST_COPROC		0x00400000
161#define CFG_SYS_POST_FLASH		0x00800000
162#define CFG_SYS_POST_MEM_REGIONS	0x01000000
163
164#endif /* CONFIG_POST */
165
166#endif /* _POST_H */
167