1 /*
2  * Copyright (c) 2022, MediaTek Inc. All rights reserved.
3  *
4  * SPDX-License-Identifier: BSD-3-Clause
5  */
6 
7 #ifndef MTK_INIT_H
8 #define MTK_INIT_H
9 
10 #include <cdefs.h>
11 #include <lib/mtk_init/mtk_init_def.h>
12 
13 #define INIT_CALL_EXPAND_AS_ENUMERATION(_section_enum, _section_name, _level) \
14 	_section_enum = _level,
15 
16 #define EXPAND_AS_LINK_SECTION(_section_enum, _section_name, _level) \
17 	__##_section_enum##_START__ = .; \
18 	KEEP(*(_section_name##_level));
19 
20 #define EXPAND_AS_EXTERN(_section_enum, _section_name, _level) \
21 	extern struct initcall __##_section_enum##_START__[];
22 
23 #define EXPAND_AS_SYMBOL_ARR(_section_enum, _section_name, _level) \
24 	__##_section_enum##_START__,
25 
26 #define DECLARE_MTK_INITCALL(_fn, _level) \
27 	const struct initcall _mtk_initcall_##_fn \
28 	__used \
29 	__aligned(sizeof(void *)) \
30 	__section(".mtk_plat_initcall_"#_level) \
31 	= { \
32 		.name = #_fn, \
33 		.fn = _fn \
34 	}
35 
36 /* initcall helpers  */
37 #define MTK_EARLY_PLAT_INIT(_fn) DECLARE_MTK_INITCALL(_fn, 0)
38 #define MTK_ARCH_INIT(_fn) DECLARE_MTK_INITCALL(_fn, 1)
39 #define MTK_PLAT_SETUP_0_INIT(_fn) DECLARE_MTK_INITCALL(_fn, 2)
40 #define MTK_PLAT_SETUP_1_INIT(_fn) DECLARE_MTK_INITCALL(_fn, 3)
41 #define MTK_PLAT_RUNTIME_INIT(_fn) DECLARE_MTK_INITCALL(_fn, 4)
42 #define MTK_PLAT_BL33_DEFER_INIT(_fn) DECLARE_MTK_INITCALL(_fn, 5)
43 
44 #ifndef __ASSEMBLER__
45 struct initcall {
46 	const char *name;
47 	int (*fn)(void);
48 };
49 
50 enum {
51 	INIT_CALL_TABLE(INIT_CALL_EXPAND_AS_ENUMERATION)
52 	MTK_INIT_LVL_MAX
53 };
54 
55 void mtk_init_one_level(unsigned int level);
56 #endif
57 
58 #endif /* MTK_INIT_H */
59