/* * (C) Copyright 2000-2009 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef __COMMON_H_ #define __COMMON_H_ 1 #ifndef __ASSEMBLY__ /* put C only stuff in this section */ typedef unsigned char uchar; typedef volatile unsigned long vu_long; typedef volatile unsigned short vu_short; typedef volatile unsigned char vu_char; /* Allow sharing constants with type modifiers between C and assembly. */ #define _AC(X, Y) (X##Y) #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* Bring in printf format macros if inttypes.h is included */ #define __STDC_FORMAT_MACROS #ifdef __LP64__ #define CONFIG_SYS_SUPPORT_64BIT_DATA #endif #ifdef DEBUG #define _DEBUG 1 #else #define _DEBUG 0 #endif #ifdef CONFIG_SPL_BUILD #define _SPL_BUILD 1 #else #define _SPL_BUILD 0 #endif /* * Output a debug text when condition "cond" is met. The "cond" should be * computed by a preprocessor in the best case, allowing for the best * optimization. */ #define debug_cond(cond, fmt, args...) \ do { \ if (cond) \ printf(pr_fmt(fmt), ##args); \ } while (0) /* Show a message if DEBUG is defined in a file */ #define debug(fmt, args...) \ debug_cond(_DEBUG, fmt, ##args) /* Show a message if not in SPL */ #define warn_non_spl(fmt, args...) \ debug_cond(!_SPL_BUILD, fmt, ##args) /* * An assertion is run-time check done in debug mode only. If DEBUG is not * defined then it is skipped. If DEBUG is defined and the assertion fails, * then it calls panic*( which may or may not reset/halt U-Boot (see * CONFIG_PANIC_HANG), It is hoped that all failing assertions are found * before release, and after release it is hoped that they don't matter. But * in any case these failing assertions cannot be fixed with a reset (which * may just do the same assertion again). */ void __assert_fail(const char *assertion, const char *file, unsigned line, const char *function); #define assert(x) \ ({ if (!(x) && _DEBUG) \ __assert_fail(#x, __FILE__, __LINE__, __func__); }) #ifndef BUG #define BUG() do { \ printf("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \ panic("BUG!"); \ } while (0) #define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0) #endif /* BUG */ typedef void (interrupt_handler_t)(void *); #include /* boot information for Linux kernel */ #include /* global data used for startup functions */ #if defined(CONFIG_ENV_IS_EMBEDDED) #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN #elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \ (CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \ defined(CONFIG_ENV_IS_IN_NVRAM) #define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE) #else #define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN #endif /* * Function Prototypes */ 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); void hang (void) __attribute__ ((noreturn)); int timer_init(void); int cpu_init(void); #include /* common/main.c */ void main_loop (void); int run_command(const char *cmd, int flag); int run_command_repeatable(const char *cmd, int flag); /** * Run a list of commands separated by ; or even \0 * * Note that if 'len' is not -1, then the command does not need to be nul * terminated, Memory will be allocated for the command in that case. * * @param cmd List of commands to run, each separated bu semicolon * @param len Length of commands excluding terminator if known (-1 if not) * @param flag Execution flags (CMD_FLAG_...) * @return 0 on success, or != 0 on error. */ int run_command_list(const char *cmd, int len, int flag); /* arch/$(ARCH)/lib/board.c */ void board_init_f(ulong); void board_init_r(gd_t *, ulong) __attribute__ ((noreturn)); /** * ulong board_init_f_alloc_reserve - allocate reserved area * * 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. * * @top: top of the reserve area, growing down. * @return: bottom of reserved area */ ulong board_init_f_alloc_reserve(ulong top); /** * board_init_f_init_reserve - initialize the reserved area(s) * * 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. * * @base: top from which reservation was done */ void board_init_f_init_reserve(ulong base); /** * arch_setup_gd() - Set up the global_data pointer * * 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; * * @gd_ptr: Pointer to global data */ void arch_setup_gd(gd_t *gd_ptr); int checkboard(void); int show_board_info(void); int checkflash(void); int checkdram(void); int last_stage_init(void); extern ulong monitor_flash_len; int mac_read_from_eeprom(void); extern u8 __dtb_dt_begin[]; /* embedded device tree blob */ int set_cpu_clk_info(void); int mdm_init(void); int print_cpuinfo(void); int update_flash_size(int flash_size); int arch_early_init_r(void); /* * setup_board_extra() - Fill in extra details in the bd_t structure * * @return 0 if OK, -ve on error */ int setup_board_extra(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. */ int arch_fsp_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); /** * 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 */ __weak int arch_reserve_stacks(void); /** * Show the DRAM size in a board-specific way * * This is used by boards to display DRAM information in their own way. * * @param size Size of DRAM (which should be displayed along with other info) */ void board_show_dram(phys_size_t size); /** * arch_fixup_fdt() - Write arch-specific information to fdt * * Defined in arch/$(ARCH)/lib/bootm-fdt.c * * @blob: FDT blob to write to * @return 0 if ok, or -ve FDT_ERR_... on failure */ int arch_fixup_fdt(void *blob); int reserve_mmu(void); /* common/flash.c */ void flash_perror (int); /* common/cmd_source.c */ int source (ulong addr, const char *fit_uname); extern ulong load_addr; /* Default Load Address */ extern ulong save_addr; /* Default Save Address */ extern ulong save_size; /* Default Save Size */ /* common/cmd_net.c */ int do_tftpb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); /* common/cmd_fat.c */ int do_fat_fsload(cmd_tbl_t *, int, int, char * const []); /* common/cmd_ext2.c */ int do_ext2load(cmd_tbl_t *, int, int, char * const []); /* common/cmd_nvedit.c */ int env_init (void); void env_relocate (void); int envmatch (uchar *, int); /** * env_get() - Look up the value of an environment variable * * In U-Boot proper this can be called before relocation (which is when the * environment is loaded from storage, i.e. GD_FLG_ENV_READY is 0). In that * case this function calls env_get_f(). * * @varname: Variable to look up * @return value of variable, or NULL if not found */ char *env_get(const char *varname); /** * env_get_f() - Look up the value of an environment variable (early) * * This function is called from env_get() if the environment has not been * loaded yet (GD_FLG_ENV_READY flag is 0). Some environment locations will * support reading the value (slowly) and some will not. * * @varname: Variable to look up * @return value of variable, or NULL if not found */ int env_get_f(const char *name, char *buf, unsigned len); /** * env_get_ulong() - Return an environment variable as an integer value * * Most U-Boot environment variables store hex values. For those which store * (e.g.) base-10 integers, this function can be used to read the value. * * @name: Variable to look up * @base: Base to use (e.g. 10 for base 10, 2 for binary) * @default_val: Default value to return if no value is found * @return the value found, or @default_val if none */ ulong env_get_ulong(const char *name, int base, ulong default_val); /** * env_get_hex() - Return an environment variable as a hex value * * Decode an environment as a hex number (it may or may not have a 0x * prefix). If the environment variable cannot be found, or does not start * with hex digits, the default value is returned. * * @varname: Variable to decode * @default_val: Value to return on error */ ulong env_get_hex(const char *varname, ulong default_val); /* * Read an environment variable as a boolean * Return -1 if variable does not exist (default to true) */ int env_get_yesno(const char *var); /** * env_set() - set an environment variable * * This sets or deletes the value of an environment variable. For setting the * value the variable is created if it does not already exist. * * @varname: Variable to adjust * @value: Value to set for the variable, or NULL or "" to delete the variable * @return 0 if OK, 1 on error */ int env_set(const char *varname, const char *value); /** * env_set_ulong() - set an environment variable to an integer * * @varname: Variable to adjust * @value: Value to set for the variable (will be converted to a string) * @return 0 if OK, 1 on error */ int env_set_ulong(const char *varname, ulong value); /** * env_set_hex() - set an environment variable to a hex value * * @varname: Variable to adjust * @value: Value to set for the variable (will be converted to a hex string) * @return 0 if OK, 1 on error */ int env_set_hex(const char *varname, ulong value); /** * env_set_addr - Set an environment variable to an address in hex * * @varname: Environment variable to set * @addr: Value to set it to * @return 0 if ok, 1 on error */ static inline int env_set_addr(const char *varname, const void *addr) { return env_set_hex(varname, (ulong)addr); } #ifdef CONFIG_AUTO_COMPLETE int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf); #endif int get_env_id (void); void pci_init (void); void pci_init_board(void); #if defined(CONFIG_DTB_RESELECT) int embedded_dtb_select(void); #endif int misc_init_f (void); int misc_init_r (void); /* common/exports.c */ void jumptable_init(void); /* common/kallsysm.c */ const char *symbol_lookup(unsigned long addr, unsigned long *caddr); /* common/memsize.c */ long get_ram_size (long *, long); phys_size_t get_effective_memsize(void); /* $(BOARD)/$(BOARD).c */ void reset_phy (void); void fdc_hw_init (void); /* $(BOARD)/eeprom.c */ #ifdef CONFIG_CMD_EEPROM void eeprom_init (int bus); int eeprom_read (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt); int eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt); #else /* * Some EEPROM code is depecated because it used the legacy I2C interface. Add * some macros here so we don't have to touch every one of those uses */ #define eeprom_init(bus) #define eeprom_read(dev_addr, offset, buffer, cnt) ((void)-ENOSYS) #define eeprom_write(dev_addr, offset, buffer, cnt) ((void)-ENOSYS) #endif /* * Set this up regardless of board * type, to prevent errors. */ #if defined(CONFIG_SPI) || !defined(CONFIG_SYS_I2C_EEPROM_ADDR) # define CONFIG_SYS_DEF_EEPROM_ADDR 0 #else #if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C) # define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR #endif #endif /* CONFIG_SPI || !defined(CONFIG_SYS_I2C_EEPROM_ADDR) */ #if defined(CONFIG_SPI) extern void spi_init_f (void); extern void spi_init_r (void); extern ssize_t spi_read (uchar *, int, uchar *, int); extern ssize_t spi_write (uchar *, int, uchar *, int); #endif /* $(BOARD)/$(BOARD).c */ int board_early_init_f (void); int board_fix_fdt (void *rw_fdt_blob); /* manipulate the U-Boot fdt before its relocation */ int board_late_init (void); int board_postclk_init (void); /* after clocks/timebase, before env/serial */ int board_early_init_r (void); void board_poweroff (void); #if defined(CONFIG_SYS_DRAM_TEST) int testdram(void); #endif /* CONFIG_SYS_DRAM_TEST */ /* $(CPU)/start.S */ int icache_status (void); void icache_enable (void); void icache_disable(void); int dcache_status (void); void dcache_enable (void); void dcache_disable(void); void mmu_disable(void); #if defined(CONFIG_ARM) void relocate_code(ulong); #else void relocate_code(ulong, gd_t *, ulong) __attribute__ ((noreturn)); #endif ulong get_endaddr (void); void trap_init (ulong); /* $(CPU)/cpu.c */ static inline int cpumask_next(int cpu, unsigned int mask) { for (cpu++; !((1 << cpu) & mask); cpu++) ; return cpu; } #define for_each_cpu(iter, cpu, num_cpus, mask) \ for (iter = 0, cpu = cpumask_next(-1, mask); \ iter < num_cpus; \ iter++, cpu = cpumask_next(cpu, mask)) \ int cpu_numcores (void); int cpu_num_dspcores(void); u32 cpu_mask (void); u32 cpu_dsp_mask(void); int is_core_valid (unsigned int); /** * 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. */ int arch_cpu_init(void); int checkcpu (void); int checkicache (void); int checkdcache (void); void upmconfig (unsigned int, unsigned int *, unsigned int); ulong get_tbclk (void); void reset_misc (void); void reset_cpu (ulong addr); void ft_cpu_setup(void *blob, bd_t *bd); void ft_pci_setup(void *blob, bd_t *bd); void smp_set_core_boot_addr(unsigned long addr, int corenr); void smp_kick_all_cpus(void); /* $(CPU)/serial.c */ int serial_init (void); void serial_setbrg (void); void serial_putc (const char); void serial_putc_raw(const char); void serial_puts (const char *); int serial_getc (void); int serial_tstc (void); /* $(CPU)/speed.c */ int get_clocks (void); ulong get_bus_freq (ulong); int get_serial_clock(void); int cpu_init_r (void); /* $(CPU)/interrupts.c */ int interrupt_init (void); void timer_interrupt (struct pt_regs *); void external_interrupt (struct pt_regs *); void irq_install_handler(int, interrupt_handler_t *, void *); void irq_free_handler (int); void reset_timer (void); /* Return value of monotonic microsecond timer */ unsigned long timer_get_us(void); void enable_interrupts (void); int disable_interrupts (void); /* $(CPU)/.../commproc.c */ int dpram_init (void); uint dpram_base(void); uint dpram_base_align(uint align); uint dpram_alloc(uint size); uint dpram_alloc_align(uint size,uint align); void bootcount_store (ulong); ulong bootcount_load (void); #define BOOTCOUNT_MAGIC 0xB001C041 /* $(CPU)/.../ */ void mii_init (void); /* $(CPU)/.../lcd.c */ ulong lcd_setmem (ulong); /* $(CPU)/.../video.c */ ulong video_setmem (ulong); /* arch/$(ARCH)/lib/cache.c */ void enable_caches(void); void flush_cache (unsigned long, unsigned long); void flush_dcache_all(void); void flush_dcache_range(unsigned long start, unsigned long stop); void invalidate_dcache_range(unsigned long start, unsigned long stop); void invalidate_dcache_all(void); void invalidate_icache_all(void); enum { /* Disable caches (else flush caches but leave them active) */ CBL_DISABLE_CACHES = 1 << 0, CBL_SHOW_BOOTSTAGE_REPORT = 1 << 1, CBL_ALL = 3, }; /** * Clean up ready for linux * * @param flags Flags to control what is done */ int cleanup_before_linux_select(int flags); /* arch/$(ARCH)/lib/ticks.S */ uint64_t get_ticks(void); void wait_ticks (unsigned long); /* arch/$(ARCH)/lib/time.c */ ulong usec2ticks (unsigned long usec); ulong ticks2usec (unsigned long ticks); /* lib/gunzip.c */ int gunzip(void *, int, unsigned char *, unsigned long *); int zunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp, int stoponerr, int offset); /** * gzwrite progress indicators: defined weak to allow board-specific * overrides: * * gzwrite_progress_init called on startup * gzwrite_progress called during decompress/write loop * gzwrite_progress_finish called at end of loop to * indicate success (retcode=0) or failure */ void gzwrite_progress_init(u64 expected_size); void gzwrite_progress(int iteration, u64 bytes_written, u64 total_bytes); void gzwrite_progress_finish(int retcode, u64 totalwritten, u64 totalsize, u32 expected_crc, u32 calculated_crc); /** * decompress and write gzipped image from memory to block device * * @param src compressed image address * @param len compressed image length in bytes * @param dev block device descriptor * @param szwritebuf bytes per write (pad to erase size) * @param startoffs offset in bytes of first write * @param szexpected expected uncompressed length * may be zero to use gzip trailer * for files under 4GiB */ int gzwrite(unsigned char *src, int len, struct blk_desc *dev, unsigned long szwritebuf, u64 startoffs, u64 szexpected); /* lib/lz4_wrapper.c */ int ulz4fn(const void *src, size_t srcn, void *dst, size_t *dstn); /* lib/qsort.c */ void qsort(void *base, size_t nmemb, size_t size, int(*compar)(const void *, const void *)); int strcmp_compar(const void *, const void *); /* lib/uuid.c */ #include /* lib/vsprintf.c */ #include /* lib/strmhz.c */ char * strmhz(char *buf, unsigned long hz); /* lib/crc32.c */ #include /* lib/rand.c */ #define RAND_MAX -1U void srand(unsigned int seed); unsigned int rand(void); unsigned int rand_r(unsigned int *seedp); /* * STDIO based functions (can always be used) */ /* serial stuff */ int serial_printf (const char *fmt, ...) __attribute__ ((format (__printf__, 1, 2))); /* lib/gzip.c */ int gzip(void *dst, unsigned long *lenp, unsigned char *src, unsigned long srclen); int zzip(void *dst, unsigned long *lenp, unsigned char *src, unsigned long srclen, int stoponerr, int (*func)(unsigned long, unsigned long)); /* lib/net_utils.c */ #include static inline struct in_addr env_get_ip(char *var) { return string_to_ip(env_get(var)); } int pcmcia_init (void); #ifdef CONFIG_LED_STATUS # include #endif #include #ifdef CONFIG_SHOW_ACTIVITY void show_activity(int arg); #endif /* Multicore arch functions */ #ifdef CONFIG_MP int cpu_status(int nr); int cpu_reset(int nr); int cpu_disable(int nr); int cpu_release(int nr, int argc, char * const argv[]); #endif #else /* __ASSEMBLY__ */ /* Drop a C type modifier (like in 3UL) for constants used in assembly. */ #define _AC(X, Y) X #endif /* __ASSEMBLY__ */ /* Put only stuff here that the assembler can digest */ /* Declare an unsigned long constant digestable both by C and an assembler. */ #define UL(x) _AC(x, UL) #ifdef CONFIG_POST #define CONFIG_HAS_POST #ifndef CONFIG_POST_ALT_LIST #define CONFIG_POST_STD_LIST #endif #endif #ifdef CONFIG_INIT_CRITICAL #error CONFIG_INIT_CRITICAL is deprecated! #error Read section CONFIG_SKIP_LOWLEVEL_INIT in README. #endif #define ROUND(a,b) (((a) + (b) - 1) & ~((b) - 1)) /* * check_member() - Check the offset of a structure member * * @structure: Name of structure (e.g. global_data) * @member: Name of member (e.g. baudrate) * @offset: Expected offset in bytes */ #define check_member(structure, member, offset) _Static_assert( \ offsetof(struct structure, member) == offset, \ "`struct " #structure "` offset for `" #member "` is not " #offset) /* 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() true #endif /* Pull in stuff for the build system */ #ifdef DO_DEPS_ONLY # include #endif #endif /* __COMMON_H_ */