mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-27 04:18:51 +09:00
![Ovidiu Panait](/assets/img/avatar_default.png)
Certain architectures (ppc, mips, sh, m68k) use setup board_part1 and setup_board_part2 calls during pre-relocation init to populate gd->bd boardinfo fields. This makes the generic init sequence cluttered with arch-specific ifdefs. In order to clean these arch-specific sequences from generic init, introduce arch_setup_bdinfo weak initcall so that everyone can define their own bdinfo setup routines. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
300 lines
8.1 KiB
C
300 lines
8.1 KiB
C
/* 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);
|
|
|
|
/**
|
|
* arch_setup_bdinfo() - Architecture dependent boardinfo setup
|
|
*
|
|
* Architecture-specific routine for populating various boardinfo fields of
|
|
* gd->bd. It is called during the generic board init sequence.
|
|
*
|
|
* If an implementation is not provided, it will just be a nop stub.
|
|
*
|
|
* Return: 0 if OK
|
|
*/
|
|
int arch_setup_bdinfo(void);
|
|
|
|
/**
|
|
* setup_bdinfo() - Generic boardinfo setup
|
|
*
|
|
* Routine for populating various generic boardinfo fields of
|
|
* gd->bd. It is called during the generic board init sequence.
|
|
*
|
|
* Return: 0 if OK
|
|
*/
|
|
int setup_bdinfo(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_ */
|