u-boot/include/init.h

1 /* SPDX-License-Identifier: GPL-2.0+ */
3  * (C) Copyright 2000-2009
7  * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
23  * arch_cpu_init() - basic cpu-dependent setup for an architecture
26  * CPU- or SoC- specific init needed to continue the init sequence. See
35  * arch_cpu_init_dm() - init CPU after driver model is available
41  * Return: 0 if OK, -ve on error
46  * mach_cpu_init() - SoC/machine dependent CPU setup
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
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
79  * CONFIG_SYS_SDRAM_BASE are set. The bank will have a start address of
83  * Return: 0 if OK, -ve on error
88  * arch_reserve_stacks() - Reserve all necessary 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
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.
106  * init_cache_f_r() - Turn on the cache in preparation for relocation
108  * Return: 0 if OK, -ve on error
114  * print_cpuinfo() - Display information about the CPU
116  * Return: 0 if OK, -ve on error
132  * ulong board_init_f_alloc_reserve - allocate reserved area
133  * @top: top of the reserve area, growing down.
135  * This function is called by each architecture very early in the start-up
141 ulong board_init_f_alloc_reserve(ulong top);
144  * board_init_f_init_reserve - initialize the reserved area(s)
145  * @base:	top from which reservation was done
153  * arch_setup_gd() - Set up the global_data pointer