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- /* SPDX-License-Identifier: GPL-2.0+ */
- /*
- * (C) Copyright 2000-2009
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * Copy the startup prototype, previously defined in common.h
- * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
- */
- #ifndef __INIT_H_
- #define __INIT_H_ 1
- #include <linux/types.h>
- struct global_data;
- #ifndef __ASSEMBLY__ /* put C only stuff in this section */
- /* Avoid using CONFIG_EFI_STUB directly as we may boot from other loaders */
- #ifdef CONFIG_EFI_STUB
- #define ll_boot_init() false
- #else
- #define ll_boot_init() (!(gd->flags & GD_FLG_SKIP_LL_INIT))
- #endif
- /*
- * Function Prototypes
- */
- /* common/board_f.c */
- void board_init_f(ulong dummy);
- /**
- * arch_cpu_init() - basic cpu-dependent setup for an architecture
- *
- * This is called after early malloc is available. It should handle any
- * CPU- or SoC- specific init needed to continue the init sequence. See
- * board_f.c for where it is called. If this is not provided, a default
- * version (which does nothing) will be used.
- *
- * Return: 0 on success, otherwise error
- */
- int arch_cpu_init(void);
- /**
- * arch_cpu_init_dm() - init CPU after driver model is available
- *
- * This is called immediately after driver model is available before
- * relocation. This is similar to arch_cpu_init() but is able to reference
- * devices
- *
- * Return: 0 if OK, -ve on error
- */
- int arch_cpu_init_dm(void);
- /**
- * mach_cpu_init() - SoC/machine dependent CPU setup
- *
- * This is called after arch_cpu_init(). It should handle any
- * SoC or machine specific init needed to continue the init sequence. See
- * board_f.c for where it is called. If this is not provided, a default
- * version (which does nothing) will be used.
- *
- * Return: 0 on success, otherwise error
- */
- int mach_cpu_init(void);
- /**
- * arch_fsp_init() - perform firmware support package init
- *
- * Where U-Boot relies on binary blobs to handle part of the system init, this
- * function can be used to set up the blobs. This is used on some Intel
- * platforms.
- *
- * Return: 0
- */
- int arch_fsp_init(void);
- /**
- * arch_fsp_init() - perform post-relocation firmware support package init
- *
- * Where U-Boot relies on binary blobs to handle part of the system init, this
- * function can be used to set up the blobs. This is used on some Intel
- * platforms.
- *
- * Return: 0
- */
- int arch_fsp_init_r(void);
- int dram_init(void);
- /**
- * dram_init_banksize() - Set up DRAM bank sizes
- *
- * This can be implemented by boards to set up the DRAM bank information in
- * gd->bd->bi_dram(). It is called just before relocation, after dram_init()
- * is called.
- *
- * If this is not provided, a default implementation will try to set up a
- * single bank. It will do this if CONFIG_NR_DRAM_BANKS and
- * CONFIG_SYS_SDRAM_BASE are set. The bank will have a start address of
- * CONFIG_SYS_SDRAM_BASE and the size will be determined by a call to
- * get_effective_memsize().
- *
- * Return: 0 if OK, -ve on error
- */
- int dram_init_banksize(void);
- long get_ram_size(long *base, long size);
- phys_size_t get_effective_memsize(void);
- int testdram(void);
- /**
- * arch_reserve_stacks() - Reserve all necessary stacks
- *
- * This is used in generic board init sequence in common/board_f.c. Each
- * architecture could provide this function to tailor the required stacks.
- *
- * On entry gd->start_addr_sp is pointing to the suggested top of the stack.
- * The callee ensures gd->start_add_sp is 16-byte aligned, so architectures
- * require only this can leave it untouched.
- *
- * On exit gd->start_addr_sp and gd->irq_sp should be set to the respective
- * positions of the stack. The stack pointer(s) will be set to this later.
- * gd->irq_sp is only required, if the architecture needs it.
- *
- * Return: 0 if no error
- */
- int arch_reserve_stacks(void);
- /**
- * arch_reserve_mmu() - Reserve memory for MMU TLB table
- *
- * Architecture-specific routine for reserving memory for the MMU TLB table.
- * This is used in generic board init sequence in common/board_f.c.
- *
- * If an implementation is not provided, it will just be a nop stub.
- *
- * Return: 0 if OK
- */
- int arch_reserve_mmu(void);
- /**
- * init_cache_f_r() - Turn on the cache in preparation for relocation
- *
- * Return: 0 if OK, -ve on error
- */
- int init_cache_f_r(void);
- #if !CONFIG_IS_ENABLED(CPU)
- /**
- * print_cpuinfo() - Display information about the CPU
- *
- * Return: 0 if OK, -ve on error
- */
- int print_cpuinfo(void);
- #endif
- int timer_init(void);
- int misc_init_f(void);
- #if defined(CONFIG_DTB_RESELECT)
- int embedded_dtb_select(void);
- #endif
- /* common/init/board_init.c */
- extern ulong monitor_flash_len;
- /**
- * ulong board_init_f_alloc_reserve - allocate reserved area
- * @top: top of the reserve area, growing down.
- *
- * This function is called by each architecture very early in the start-up
- * code to allow the C runtime to reserve space on the stack for writable
- * 'globals' such as GD and the malloc arena.
- *
- * Return: bottom of reserved area
- */
- ulong board_init_f_alloc_reserve(ulong top);
- /**
- * board_init_f_init_reserve - initialize the reserved area(s)
- * @base: top from which reservation was done
- *
- * This function is called once the C runtime has allocated the reserved
- * area on the stack. It must initialize the GD at the base of that area.
- */
- void board_init_f_init_reserve(ulong base);
- struct global_data;
- /**
- * arch_setup_gd() - Set up the global_data pointer
- * @gd_ptr: Pointer to global data
- *
- * This pointer is special in some architectures and cannot easily be assigned
- * to. For example on x86 it is implemented by adding a specific record to its
- * Global Descriptor Table! So we we provide a function to carry out this task.
- * For most architectures this can simply be:
- *
- * gd = gd_ptr;
- */
- void arch_setup_gd(struct global_data *gd_ptr);
- /* common/board_r.c */
- void board_init_r(struct global_data *id, ulong dest_addr)
- __attribute__ ((noreturn));
- int cpu_init_r(void);
- int last_stage_init(void);
- int mac_read_from_eeprom(void);
- int set_cpu_clk_info(void);
- int update_flash_size(int flash_size);
- int arch_early_init_r(void);
- void pci_init(void);
- void pci_ep_init(void);
- int misc_init_r(void);
- #if defined(CONFIG_VID)
- int init_func_vid(void);
- #endif
- /* common/board_info.c */
- int checkboard(void);
- int show_board_info(void);
- /**
- * Get the uppermost pointer that is valid to access
- *
- * Some systems may not map all of their address space. This function allows
- * boards to indicate what their highest support pointer value is for DRAM
- * access.
- *
- * @param total_size Size of U-Boot (unused?)
- */
- ulong board_get_usable_ram_top(ulong total_size);
- int board_early_init_f(void);
- /* manipulate the U-Boot fdt before its relocation */
- int board_fix_fdt(void *rw_fdt_blob);
- int board_late_init(void);
- int board_postclk_init(void); /* after clocks/timebase, before env/serial */
- int board_early_init_r(void);
- /* TODO(sjg@chromium.org): Drop this when DM_PCI migration is completed */
- void pci_init_board(void);
- void trap_init(unsigned long reloc_addr);
- /**
- * main_loop() - Enter the main loop of U-Boot
- *
- * This normally runs the command line.
- */
- void main_loop(void);
- #if defined(CONFIG_ARM)
- void relocate_code(ulong addr_moni);
- #else
- void relocate_code(ulong start_addr_sp, struct global_data *new_gd,
- ulong relocaddr)
- __attribute__ ((noreturn));
- #endif
- /* Print a numeric value (for use in arch_print_bdinfo()) */
- void bdinfo_print_num(const char *name, ulong value);
- /* Print a clock speed in MHz */
- void bdinfo_print_mhz(const char *name, unsigned long hz);
- /* Show arch-specific information for the 'bd' command */
- void arch_print_bdinfo(void);
- #endif /* __ASSEMBLY__ */
- /* Put only stuff here that the assembler can digest */
- #endif /* __INIT_H_ */
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