1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * (C) Copyright 2000-2009
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 * Copy the startup prototype, previously defined in common.h
7 * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
13 #ifndef __ASSEMBLY__ /* put C only stuff in this section */
19 /* common/board_f.c */
20 void board_init_f(ulong dummy);
23 * arch_cpu_init() - basic cpu-dependent setup for an architecture
25 * This is called after early malloc is available. It should handle any
26 * CPU- or SoC- specific init needed to continue the init sequence. See
27 * board_f.c for where it is called. If this is not provided, a default
28 * version (which does nothing) will be used.
30 * Return: 0 on success, otherwise error
32 int arch_cpu_init(void);
35 * arch_cpu_init_dm() - init CPU after driver model is available
37 * This is called immediately after driver model is available before
38 * relocation. This is similar to arch_cpu_init() but is able to reference
41 * Return: 0 if OK, -ve on error
43 int arch_cpu_init_dm(void);
46 * mach_cpu_init() - SoC/machine dependent CPU setup
48 * This is called after arch_cpu_init(). It should handle any
49 * SoC or machine specific init needed to continue the init sequence. See
50 * board_f.c for where it is called. If this is not provided, a default
51 * version (which does nothing) will be used.
53 * Return: 0 on success, otherwise error
55 int mach_cpu_init(void);
58 * arch_fsp_init() - perform firmware support package init
60 * Where U-Boot relies on binary blobs to handle part of the system init, this
61 * function can be used to set up the blobs. This is used on some Intel
66 int arch_fsp_init(void);
71 * dram_init_banksize() - Set up DRAM bank sizes
73 * This can be implemented by boards to set up the DRAM bank information in
74 * gd->bd->bi_dram(). It is called just before relocation, after dram_init()
77 * If this is not provided, a default implementation will try to set up a
78 * single bank. It will do this if CONFIG_NR_DRAM_BANKS and
79 * CONFIG_SYS_SDRAM_BASE are set. The bank will have a start address of
80 * CONFIG_SYS_SDRAM_BASE and the size will be determined by a call to
81 * get_effective_memsize().
83 * Return: 0 if OK, -ve on error
85 int dram_init_banksize(void);
88 * arch_reserve_stacks() - Reserve all necessary stacks
90 * This is used in generic board init sequence in common/board_f.c. Each
91 * architecture could provide this function to tailor the required stacks.
93 * On entry gd->start_addr_sp is pointing to the suggested top of the stack.
94 * The callee ensures gd->start_add_sp is 16-byte aligned, so architectures
95 * require only this can leave it untouched.
97 * On exit gd->start_addr_sp and gd->irq_sp should be set to the respective
98 * positions of the stack. The stack pointer(s) will be set to this later.
99 * gd->irq_sp is only required, if the architecture needs it.
101 * Return: 0 if no error
103 int arch_reserve_stacks(void);
106 * init_cache_f_r() - Turn on the cache in preparation for relocation
108 * Return: 0 if OK, -ve on error
110 int init_cache_f_r(void);
112 int print_cpuinfo(void);
113 int timer_init(void);
114 int reserve_mmu(void);
115 int misc_init_f(void);
117 #if defined(CONFIG_DTB_RESELECT)
118 int embedded_dtb_select(void);
121 /* common/init/board_init.c */
122 extern ulong monitor_flash_len;
125 * ulong board_init_f_alloc_reserve - allocate reserved area
126 * @top: top of the reserve area, growing down.
128 * This function is called by each architecture very early in the start-up
129 * code to allow the C runtime to reserve space on the stack for writable
130 * 'globals' such as GD and the malloc arena.
132 * Return: bottom of reserved area
134 ulong board_init_f_alloc_reserve(ulong top);
137 * board_init_f_init_reserve - initialize the reserved area(s)
138 * @base: top from which reservation was done
140 * This function is called once the C runtime has allocated the reserved
141 * area on the stack. It must initialize the GD at the base of that area.
143 void board_init_f_init_reserve(ulong base);
146 * arch_setup_gd() - Set up the global_data pointer
147 * @gd_ptr: Pointer to global data
149 * This pointer is special in some architectures and cannot easily be assigned
150 * to. For example on x86 it is implemented by adding a specific record to its
151 * Global Descriptor Table! So we we provide a function to carry out this task.
152 * For most architectures this can simply be:
156 void arch_setup_gd(gd_t *gd_ptr);
158 /* common/board_r.c */
159 void board_init_r(gd_t *id, ulong dest_addr) __attribute__ ((noreturn));
161 int cpu_init_r(void);
162 int last_stage_init(void);
163 int mac_read_from_eeprom(void);
164 int set_cpu_clk_info(void);
165 int update_flash_size(int flash_size);
166 int arch_early_init_r(void);
168 int misc_init_r(void);
169 #if defined(CONFIG_VID)
170 int init_func_vid(void);
173 /* common/board_info.c */
174 int checkboard(void);
175 int show_board_info(void);
177 #endif /* __ASSEMBLY__ */
178 /* Put only stuff here that the assembler can digest */
180 #endif /* __INIT_H_ */