405 lines
10 KiB
C
405 lines
10 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Common header file for U-Boot
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*
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* This file still includes quite a bit of stuff that should be in separate
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* headers like command.h, cpu.h and timer.h. Please think before adding more
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* things. Patches to remove things are welcome.
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*
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* (C) Copyright 2000-2009
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#ifndef __COMMON_H_
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#define __COMMON_H_ 1
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#ifndef __ASSEMBLY__ /* put C only stuff in this section */
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typedef unsigned char uchar;
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typedef volatile unsigned long vu_long;
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typedef volatile unsigned short vu_short;
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typedef volatile unsigned char vu_char;
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#include <config.h>
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#include <errno.h>
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#include <time.h>
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#include <asm-offsets.h>
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#include <linux/bitops.h>
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#include <linux/bug.h>
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#include <linux/delay.h>
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#include <linux/types.h>
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#include <linux/printk.h>
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#include <linux/string.h>
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#include <linux/stringify.h>
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#include <asm/ptrace.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <linux/kernel.h>
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#include <part.h>
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#include <flash.h>
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#include <image.h>
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#ifdef __LP64__
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#define CONFIG_SYS_SUPPORT_64BIT_DATA
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#endif
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#include <log.h>
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typedef void (interrupt_handler_t)(void *);
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#include <asm/u-boot.h> /* boot information for Linux kernel */
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#include <asm/global_data.h> /* global data used for startup functions */
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/* startup functions, used in:
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* common/board_f.c
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* common/init/board_init.c
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* common/board_r.c
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* common/board_info.c
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*/
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#include <init.h>
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/*
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* Function Prototypes
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*/
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void hang (void) __attribute__ ((noreturn));
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int cpu_init(void);
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#include <display_options.h>
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/* common/main.c */
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void main_loop (void);
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int run_command(const char *cmd, int flag);
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int run_command_repeatable(const char *cmd, int flag);
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/**
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* Run a list of commands separated by ; or even \0
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*
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* Note that if 'len' is not -1, then the command does not need to be nul
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* terminated, Memory will be allocated for the command in that case.
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*
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* @param cmd List of commands to run, each separated bu semicolon
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* @param len Length of commands excluding terminator if known (-1 if not)
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* @param flag Execution flags (CMD_FLAG_...)
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* @return 0 on success, or != 0 on error.
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*/
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int run_command_list(const char *cmd, int len, int flag);
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int checkflash(void);
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int checkdram(void);
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extern u8 __dtb_dt_begin[]; /* embedded device tree blob */
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extern u8 __dtb_dt_spl_begin[]; /* embedded device tree blob for SPL/TPL */
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int mdm_init(void);
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/**
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* Show the DRAM size in a board-specific way
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*
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* This is used by boards to display DRAM information in their own way.
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*
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* @param size Size of DRAM (which should be displayed along with other info)
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*/
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void board_show_dram(phys_size_t size);
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/**
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* Get the uppermost pointer that is valid to access
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*
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* Some systems may not map all of their address space. This function allows
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* boards to indicate what their highest support pointer value is for DRAM
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* access.
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*
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* @param total_size Size of U-Boot (unused?)
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*/
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ulong board_get_usable_ram_top(ulong total_size);
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/**
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* arch_fixup_fdt() - Write arch-specific information to fdt
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*
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* Defined in arch/$(ARCH)/lib/bootm-fdt.c
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*
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* @blob: FDT blob to write to
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* @return 0 if ok, or -ve FDT_ERR_... on failure
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*/
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int arch_fixup_fdt(void *blob);
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/* common/flash.c */
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void flash_perror (int);
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/* common/cmd_source.c */
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int source (ulong addr, const char *fit_uname);
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extern ulong load_addr; /* Default Load Address */
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extern ulong save_addr; /* Default Save Address */
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extern ulong save_size; /* Default Save Size */
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/* common/cmd_net.c */
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int do_tftpb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
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/* common/cmd_fat.c */
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int do_fat_fsload(cmd_tbl_t *, int, int, char * const []);
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/* common/cmd_ext2.c */
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int do_ext2load(cmd_tbl_t *, int, int, char * const []);
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void pci_init_board(void);
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/* common/exports.c */
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void jumptable_init(void);
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/* common/kallsysm.c */
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const char *symbol_lookup(unsigned long addr, unsigned long *caddr);
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/* common/memsize.c */
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long get_ram_size (long *, long);
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phys_size_t get_effective_memsize(void);
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/* $(BOARD)/$(BOARD).c */
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void reset_phy (void);
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void fdc_hw_init (void);
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/* $(BOARD)/eeprom.c */
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#ifdef CONFIG_CMD_EEPROM
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void eeprom_init (int bus);
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int eeprom_read (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
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int eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
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#else
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/*
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* Some EEPROM code is depecated because it used the legacy I2C interface. Add
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* some macros here so we don't have to touch every one of those uses
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*/
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#define eeprom_init(bus)
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#define eeprom_read(dev_addr, offset, buffer, cnt) ((void)-ENOSYS)
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#define eeprom_write(dev_addr, offset, buffer, cnt) ((void)-ENOSYS)
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#endif
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#if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C) && defined(CONFIG_SYS_I2C_EEPROM_ADDR)
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# define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR
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#endif
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/* $(BOARD)/$(BOARD).c */
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int board_early_init_f (void);
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int board_fix_fdt (void *rw_fdt_blob); /* manipulate the U-Boot fdt before its relocation */
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int board_late_init (void);
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int board_postclk_init (void); /* after clocks/timebase, before env/serial */
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int board_early_init_r (void);
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#if defined(CONFIG_SYS_DRAM_TEST)
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int testdram(void);
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#endif /* CONFIG_SYS_DRAM_TEST */
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/* $(CPU)/start.S */
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int icache_status (void);
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void icache_enable (void);
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void icache_disable(void);
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int dcache_status (void);
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void dcache_enable (void);
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void dcache_disable(void);
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void mmu_disable(void);
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#if defined(CONFIG_ARM)
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void relocate_code(ulong);
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#else
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void relocate_code(ulong, gd_t *, ulong) __attribute__ ((noreturn));
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#endif
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ulong get_endaddr (void);
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void trap_init (ulong);
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/* $(CPU)/cpu.c */
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static inline int cpumask_next(int cpu, unsigned int mask)
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{
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for (cpu++; !((1 << cpu) & mask); cpu++)
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;
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return cpu;
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}
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#define for_each_cpu(iter, cpu, num_cpus, mask) \
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for (iter = 0, cpu = cpumask_next(-1, mask); \
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iter < num_cpus; \
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iter++, cpu = cpumask_next(cpu, mask)) \
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int cpu_numcores (void);
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int cpu_num_dspcores(void);
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u32 cpu_mask (void);
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u32 cpu_dsp_mask(void);
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int is_core_valid (unsigned int);
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void s_init(void);
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int checkcpu (void);
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int checkicache (void);
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int checkdcache (void);
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void upmconfig (unsigned int, unsigned int *, unsigned int);
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ulong get_tbclk (void);
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void reset_misc (void);
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void reset_cpu (ulong addr);
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void ft_cpu_setup(void *blob, bd_t *bd);
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void ft_pci_setup(void *blob, bd_t *bd);
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void smp_set_core_boot_addr(unsigned long addr, int corenr);
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void smp_kick_all_cpus(void);
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/* $(CPU)/serial.c */
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int serial_init (void);
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void serial_setbrg (void);
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void serial_putc (const char);
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void serial_putc_raw(const char);
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void serial_puts (const char *);
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int serial_getc (void);
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int serial_tstc (void);
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/* $(CPU)/speed.c */
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int get_clocks (void);
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ulong get_bus_freq (ulong);
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int get_serial_clock(void);
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/* $(CPU)/interrupts.c */
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int interrupt_init (void);
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void timer_interrupt (struct pt_regs *);
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void external_interrupt (struct pt_regs *);
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void irq_install_handler(int, interrupt_handler_t *, void *);
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void irq_free_handler (int);
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void reset_timer (void);
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/* Return value of monotonic microsecond timer */
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unsigned long timer_get_us(void);
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void enable_interrupts (void);
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int disable_interrupts (void);
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/* $(CPU)/.../commproc.c */
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void bootcount_store (ulong);
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ulong bootcount_load (void);
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/* $(CPU)/.../<eth> */
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void mii_init (void);
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/* arch/$(ARCH)/lib/cache.c */
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void enable_caches(void);
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void flush_cache (unsigned long, unsigned long);
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void flush_dcache_all(void);
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void flush_dcache_range(unsigned long start, unsigned long stop);
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void invalidate_dcache_range(unsigned long start, unsigned long stop);
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void invalidate_dcache_all(void);
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void invalidate_icache_all(void);
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enum {
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/* Disable caches (else flush caches but leave them active) */
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CBL_DISABLE_CACHES = 1 << 0,
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CBL_SHOW_BOOTSTAGE_REPORT = 1 << 1,
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CBL_ALL = 3,
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};
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/**
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* Clean up ready for linux
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*
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* @param flags Flags to control what is done
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*/
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int cleanup_before_linux_select(int flags);
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/* arch/$(ARCH)/lib/ticks.S */
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uint64_t get_ticks(void);
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void wait_ticks (unsigned long);
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/* arch/$(ARCH)/lib/time.c */
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ulong usec2ticks (unsigned long usec);
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ulong ticks2usec (unsigned long ticks);
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/* lib/lz4_wrapper.c */
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int ulz4fn(const void *src, size_t srcn, void *dst, size_t *dstn);
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/* lib/qsort.c */
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void qsort(void *base, size_t nmemb, size_t size,
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int(*compar)(const void *, const void *));
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int strcmp_compar(const void *, const void *);
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/* lib/uuid.c */
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#include <uuid.h>
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/* lib/vsprintf.c */
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#include <vsprintf.h>
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/* lib/strmhz.c */
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char * strmhz(char *buf, unsigned long hz);
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/* lib/crc32.c */
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#include <u-boot/crc.h>
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/* lib/rand.c */
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#define RAND_MAX -1U
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void srand(unsigned int seed);
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unsigned int rand(void);
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unsigned int rand_r(unsigned int *seedp);
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/*
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* STDIO based functions (can always be used)
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*/
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/* serial stuff */
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int serial_printf (const char *fmt, ...)
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__attribute__ ((format (__printf__, 1, 2)));
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/* lib/net_utils.c */
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#include <net.h>
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static inline struct in_addr env_get_ip(char *var)
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{
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return string_to_ip(env_get(var));
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}
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#ifdef CONFIG_LED_STATUS
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# include <status_led.h>
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#endif
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#include <bootstage.h>
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#ifdef CONFIG_SHOW_ACTIVITY
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void show_activity(int arg);
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#endif
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/* Multicore arch functions */
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#ifdef CONFIG_MP
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int cpu_status(u32 nr);
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int cpu_reset(u32 nr);
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int cpu_disable(u32 nr);
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int cpu_release(u32 nr, int argc, char * const argv[]);
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#endif
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#else /* __ASSEMBLY__ */
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#endif /* __ASSEMBLY__ */
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/* Put only stuff here that the assembler can digest */
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#ifdef CONFIG_POST
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#define CONFIG_HAS_POST
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#ifndef CONFIG_POST_ALT_LIST
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#define CONFIG_POST_STD_LIST
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#endif
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#endif
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#define ROUND(a,b) (((a) + (b) - 1) & ~((b) - 1))
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/*
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* check_member() - Check the offset of a structure member
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*
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* @structure: Name of structure (e.g. global_data)
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* @member: Name of member (e.g. baudrate)
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* @offset: Expected offset in bytes
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*/
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#define check_member(structure, member, offset) _Static_assert( \
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offsetof(struct structure, member) == offset, \
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"`struct " #structure "` offset for `" #member "` is not " #offset)
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/* Avoid using CONFIG_EFI_STUB directly as we may boot from other loaders */
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#ifdef CONFIG_EFI_STUB
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#define ll_boot_init() false
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#else
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#define ll_boot_init() true
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#endif
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/* Pull in stuff for the build system */
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#ifdef DO_DEPS_ONLY
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# include <env_internal.h>
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#endif
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#endif /* __COMMON_H_ */
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