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https://github.com/ARM-software/arm-trusted-firmware.git
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52035dee1a
Provide six initcall levels for drivers/modules initialize HW controllers or runtime arguments during cold boot. The initcall level cold boot execution order: -MTK_EARLY_PLAT_INIT Call before MMU enabled. -MTK_ARCH_INIT MMU Enabled, arch related init(GiC init, interrupt type registration). -MTK_PLAT_SETUP_0_INIT MTK driver init level 0. -MTK_PLAT_SETUP_1_INIT MTK driver init level 1. -MTK_PLAT_RUNTIME_INIT MTK driver init. After this initcall, TF-A handovers to MTK 2nd bootloader. -MTK_PLAT_BL33_DEFER_INIT MTK 2nd bootloader traps to TF-A before handover to rich OS. This initcall executed in the trap handler(boot_to_kernel). Signed-off-by: Leon Chen <leon.chen@mediatek.com> Change-Id: Icd7fe95372441db73c975ccb6ce77a6c529df1cc
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/*
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* Copyright (c) 2022, MediaTek Inc. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef MTK_INIT_H
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#define MTK_INIT_H
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#include <cdefs.h>
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#include <lib/mtk_init/mtk_init_def.h>
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#define INIT_CALL_EXPAND_AS_ENUMERATION(_section_enum, _section_name, _level) \
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_section_enum = _level,
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#define EXPAND_AS_LINK_SECTION(_section_enum, _section_name, _level) \
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__##_section_enum##_START__ = .; \
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KEEP(*(_section_name##_level));
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#define EXPAND_AS_EXTERN(_section_enum, _section_name, _level) \
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extern struct initcall __##_section_enum##_START__[];
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#define EXPAND_AS_SYMBOL_ARR(_section_enum, _section_name, _level) \
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__##_section_enum##_START__,
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#define DECLARE_MTK_INITCALL(_fn, _level) \
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const struct initcall _mtk_initcall_##_fn \
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__used \
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__aligned(sizeof(void *)) \
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__section(".mtk_plat_initcall_"#_level) \
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= { \
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.name = #_fn, \
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.fn = _fn \
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}
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/* initcall helpers */
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#define MTK_EARLY_PLAT_INIT(_fn) DECLARE_MTK_INITCALL(_fn, 0)
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#define MTK_ARCH_INIT(_fn) DECLARE_MTK_INITCALL(_fn, 1)
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#define MTK_PLAT_SETUP_0_INIT(_fn) DECLARE_MTK_INITCALL(_fn, 2)
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#define MTK_PLAT_SETUP_1_INIT(_fn) DECLARE_MTK_INITCALL(_fn, 3)
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#define MTK_PLAT_RUNTIME_INIT(_fn) DECLARE_MTK_INITCALL(_fn, 4)
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#define MTK_PLAT_BL33_DEFER_INIT(_fn) DECLARE_MTK_INITCALL(_fn, 5)
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#ifndef __ASSEMBLER__
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struct initcall {
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const char *name;
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int (*fn)(void);
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};
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enum {
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INIT_CALL_TABLE(INIT_CALL_EXPAND_AS_ENUMERATION)
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MTK_INIT_LVL_MAX
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};
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void mtk_init_one_level(unsigned int level);
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#endif
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#endif /* MTK_INIT_H */
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