/* * (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; #include #include #include #include #include #include #include #include #include #if defined(CONFIG_PCI) && defined(CONFIG_4xx) #include #endif #if defined(CONFIG_8xx) #include #if defined(CONFIG_MPC859) || defined(CONFIG_MPC859T) || \ defined(CONFIG_MPC866) || \ defined(CONFIG_MPC866P) # define CONFIG_MPC866_FAMILY 1 #elif defined(CONFIG_MPC885) # define CONFIG_MPC885_FAMILY 1 #endif #if defined(CONFIG_MPC860) \ || defined(CONFIG_MPC860T) \ || defined(CONFIG_MPC866_FAMILY) \ || defined(CONFIG_MPC885_FAMILY) # define CONFIG_MPC86x 1 #endif #elif defined(CONFIG_5xx) #include #elif defined(CONFIG_MPC5xxx) #include #elif defined(CONFIG_MPC512X) #include #elif defined(CONFIG_MPC8260) #if defined(CONFIG_MPC8247) \ || defined(CONFIG_MPC8272) #define CONFIG_MPC8272_FAMILY 1 #endif #include #endif #ifdef CONFIG_MPC86xx #include #include #endif #ifdef CONFIG_MPC85xx #include #include #endif #ifdef CONFIG_MPC83xx #include #include #endif #ifdef CONFIG_4xx #include #endif #ifdef CONFIG_BLACKFIN #include #endif #ifdef CONFIG_SOC_DA8XX #include #endif #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 #ifndef pr_fmt #define pr_fmt(fmt) fmt #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) #define debug(fmt, args...) \ debug_cond(_DEBUG, 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__); }) #define error(fmt, args...) do { \ printf("ERROR: " pr_fmt(fmt) "\nat %s:%d/%s()\n", \ ##args, __FILE__, __LINE__, __func__); \ } while (0) #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 */ /* Force a compilation error if condition is true */ #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) typedef void (interrupt_handler_t)(void *); #include /* boot information for Linux kernel */ #include /* global data used for startup functions */ /* * enable common handling for all TQM8xxL/M boards: * - CONFIG_TQM8xxM will be defined for all TQM8xxM boards * - CONFIG_TQM8xxL will be defined for all TQM8xxL _and_ TQM8xxM boards * and for the TQM885D board */ #if defined(CONFIG_TQM823M) || defined(CONFIG_TQM850M) || \ defined(CONFIG_TQM855M) || defined(CONFIG_TQM860M) || \ defined(CONFIG_TQM862M) || defined(CONFIG_TQM866M) # ifndef CONFIG_TQM8xxM # define CONFIG_TQM8xxM # endif #endif #if defined(CONFIG_TQM823L) || defined(CONFIG_TQM850L) || \ defined(CONFIG_TQM855L) || defined(CONFIG_TQM860L) || \ defined(CONFIG_TQM862L) || defined(CONFIG_TQM8xxM) || \ defined(CONFIG_TQM885D) # ifndef CONFIG_TQM8xxL # define CONFIG_TQM8xxL # endif #endif #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); void hang (void) __attribute__ ((noreturn)); int timer_init(void); int cpu_init(void); /* */ phys_size_t initdram (int); int display_options (void); /** * print_size() - Print a size with a suffic * * print sizes as "xxx KiB", "xxx.y KiB", "xxx MiB", "xxx.y MiB", * xxx GiB, xxx.y GiB, etc as needed; allow for optional trailing string * (like "\n") * * @size: Size to print * @suffix String to print after the size */ void print_size(uint64_t size, const char *suffix); int print_buffer(ulong addr, const void *data, uint width, uint count, uint linelen); /* 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); extern char console_buffer[]; /* arch/$(ARCH)/lib/board.c */ void board_init_f(ulong); void board_init_r(gd_t *, ulong) __attribute__ ((noreturn)); int checkboard(void); int show_board_info(void); int checkflash(void); int checkdram(void); int last_stage_init(void); extern ulong monitor_flash_len; int mac_read_from_eeprom(void); extern u8 __dtb_dt_begin[]; /* embedded device tree blob */ int set_cpu_clk_info(void); int mdm_init(void); #if defined(CONFIG_DISPLAY_CPUINFO) int print_cpuinfo(void); #else static inline int print_cpuinfo(void) { return 0; } #endif int update_flash_size(int flash_size); int arch_early_init_r(void); /** * Reserve all necessary stacks * * This is used in generic board init sequence in common/board_f.c. Each * architecture could provide this function to tailor the required stacks. * * On entry gd->start_addr_sp is pointing to the suggested top of the stack. * The callee ensures gd->start_add_sp is 16-byte aligned, so architectures * require only this can leave it untouched. * * On exit gd->start_addr_sp and gd->irq_sp should be set to the respective * positions of the stack. The stack pointer(s) will be set to this later. * gd->irq_sp is only required, if the architecture needs it. * * @return 0 if no error */ __weak int arch_reserve_stacks(void); /** * Show the DRAM size in a board-specific way * * This is used by boards to display DRAM information in their own way. * * @param size Size of DRAM (which should be displayed along with other info) */ void board_show_dram(ulong size); /** * arch_fixup_fdt() - Write arch-specific information to fdt * * Defined in arch/$(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); /* 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_doc.c */ void doc_probe(unsigned long physadr); /* 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_size(cmd_tbl_t *, int, int, char * const []); /* 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); /* Avoid unfortunate conflict with libc's getenv() */ #ifdef CONFIG_SANDBOX #define getenv uboot_getenv #endif char *getenv (const char *); int getenv_f (const char *name, char *buf, unsigned len); ulong getenv_ulong(const char *name, int base, ulong default_val); /** * getenv_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 getenv_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 getenv_yesno(const char *var); int saveenv (void); int setenv (const char *, const char *); int setenv_ulong(const char *varname, ulong value); int setenv_hex(const char *varname, ulong value); /** * setenv_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 setenv_addr(const char *varname, const void *addr) { return setenv_hex(varname, (ulong)addr); } #ifdef CONFIG_ARM # include # include # include /* ARM version to be fixed! */ #endif /* CONFIG_ARM */ #ifdef CONFIG_X86 /* x86 version to be fixed! */ # include #endif /* CONFIG_X86 */ #ifdef CONFIG_SANDBOX # include /* TODO(sjg) what needs to be fixed? */ #endif #ifdef CONFIG_NDS32 # include # include # include #endif /* CONFIG_NDS32 */ #ifdef CONFIG_MIPS # include #endif /* CONFIG_MIPS */ #ifdef CONFIG_ARC # include #endif /* CONFIG_ARC */ #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); void pciinfo (int, int); #if defined(CONFIG_PCI) && defined(CONFIG_4xx) int pci_pre_init (struct pci_controller *); int is_pci_host (struct pci_controller *); #endif #if defined(CONFIG_PCI) && (defined(CONFIG_440) || defined(CONFIG_405EX)) # if defined(CONFIG_SYS_PCI_TARGET_INIT) void pci_target_init (struct pci_controller *); # endif # if defined(CONFIG_SYS_PCI_MASTER_INIT) void pci_master_init (struct pci_controller *); # endif #if defined(CONFIG_440SPE) || \ defined(CONFIG_460EX) || defined(CONFIG_460GT) || \ defined(CONFIG_405EX) void pcie_setup_hoses(int busno); #endif #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); /* api/api.c */ void api_init (void); /* 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 */ void eeprom_init (void); #ifndef CONFIG_SPI int eeprom_probe (unsigned dev_addr, unsigned offset); #endif int eeprom_read (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt); int eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt); /* * 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_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 */ #if defined(CONFIG_5xx) || \ defined(CONFIG_8xx) uint get_immr (uint); #endif uint get_pir (void); #if defined(CONFIG_MPC5xxx) uint get_svr (void); #endif uint get_pvr (void); uint get_svr (void); uint rd_ic_cst (void); void wr_ic_cst (uint); void wr_ic_adr (uint); uint rd_dc_cst (void); void wr_dc_cst (uint); void wr_dc_adr (uint); 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); #if defined (CONFIG_4xx) || \ defined (CONFIG_MPC5xxx) || \ defined (CONFIG_MPC85xx) || \ defined (CONFIG_MPC86xx) || \ defined (CONFIG_MPC83xx) unsigned char in8(unsigned int); void out8(unsigned int, unsigned char); unsigned short in16(unsigned int); unsigned short in16r(unsigned int); void out16(unsigned int, unsigned short value); void out16r(unsigned int, unsigned short value); unsigned long in32(unsigned int); unsigned long in32r(unsigned int); void out32(unsigned int, unsigned long value); void out32r(unsigned int, unsigned long value); void ppcDcbf(unsigned long value); void ppcDcbi(unsigned long value); void ppcSync(void); void ppcDcbz(unsigned long value); #endif #if defined (CONFIG_MICROBLAZE) unsigned short in16(unsigned int); void out16(unsigned int, unsigned short value); #endif #if defined (CONFIG_MPC83xx) void ppcDWload(unsigned int *addr, unsigned int *ret); void ppcDWstore(unsigned int *addr, unsigned int *value); void disable_addr_trans(void); void enable_addr_trans(void); #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) void ddr_enable_ecc(unsigned int dram_size); #endif #endif /* * Return the current value of a monotonically increasing microsecond timer. * Granularity may be larger than 1us if hardware does not support this. */ ulong timer_get_us(void); /* $(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); int probecpu (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); #if defined (CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP) void ft_cpu_setup(void *blob, bd_t *bd); #ifdef CONFIG_PCI void ft_pci_setup(void *blob, bd_t *bd); #endif #endif 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); /* These versions take a stdio_dev pointer */ struct stdio_dev; int serial_stub_getc(struct stdio_dev *sdev); int serial_stub_tstc(struct stdio_dev *sdev); /* $(CPU)/speed.c */ int get_clocks (void); int get_clocks_866 (void); int sdram_adjust_866 (void); int adjust_sdram_tbs_8xx (void); #if defined(CONFIG_MPC8260) int prt_8260_clks (void); #elif defined(CONFIG_MPC5xxx) int prt_mpc5xxx_clks (void); #endif #ifdef CONFIG_4xx ulong get_OPB_freq (void); ulong get_PCI_freq (void); #endif #if defined(CONFIG_S3C24X0) || \ defined(CONFIG_LH7A40X) || \ defined(CONFIG_EP93XX) ulong get_FCLK (void); ulong get_HCLK (void); ulong get_PCLK (void); ulong get_UCLK (void); #endif #if defined(CONFIG_LH7A40X) ulong get_PLLCLK (void); #endif #if defined(CONFIG_IMX) ulong get_systemPLLCLK(void); ulong get_FCLK(void); ulong get_HCLK(void); ulong get_BCLK(void); ulong get_PERCLK1(void); ulong get_PERCLK2(void); ulong get_PERCLK3(void); #endif ulong get_bus_freq (ulong); int get_serial_clock(void); #if defined(CONFIG_MPC85xx) typedef MPC85xx_SYS_INFO sys_info_t; void get_sys_info ( sys_info_t * ); # if defined(CONFIG_OF_LIBFDT) void ft_fixup_cpu(void *, u64); void ft_fixup_num_cores(void *); # endif #endif #if defined(CONFIG_MPC86xx) typedef MPC86xx_SYS_INFO sys_info_t; void get_sys_info ( sys_info_t * ); static inline ulong get_ddr_freq(ulong dummy) { return get_bus_freq(dummy); } #else ulong get_ddr_freq(ulong); #endif #if defined(CONFIG_4xx) # if defined(CONFIG_440) # if defined(CONFIG_440SPE) unsigned long determine_sysper(void); unsigned long determine_pci_clock_per(void); # endif # endif typedef PPC4xx_SYS_INFO sys_info_t; int ppc440spe_revB(void); void get_sys_info ( sys_info_t * ); #endif /* $(CPU)/cpu_init.c */ #if defined(CONFIG_8xx) || defined(CONFIG_MPC8260) void cpu_init_f (volatile immap_t *immr); #endif #if defined(CONFIG_4xx) || defined(CONFIG_MCF52x2) || defined(CONFIG_MPC86xx) void cpu_init_f (void); #endif #ifdef CONFIG_MPC85xx ulong cpu_init_f(void); #endif int cpu_init_r (void); #if defined(CONFIG_MPC8260) int prt_8260_rsr (void); #elif defined(CONFIG_MPC83xx) int prt_83xx_rsr (void); #endif /* $(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); ulong get_timer (ulong base); /* 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); /* arch/$(ARCH)/lib/ticks.S */ uint64_t get_ticks(void); void wait_ticks (unsigned long); /* arch/$(ARCH)/lib/time.c */ void __udelay (unsigned long); ulong usec2ticks (unsigned long usec); ulong ticks2usec (unsigned long ticks); int init_timebase (void); /* 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); /* 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/time.c */ void udelay (unsigned long); void mdelay(unsigned long); /* 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); /* common/console.c */ int console_init_f(void); /* Before relocation; uses the serial stuff */ int console_init_r(void); /* After relocation; uses the console stuff */ int console_assign(int file, const char *devname); /* Assign the console */ int ctrlc (void); int had_ctrlc (void); /* have we had a Control-C since last clear? */ void clear_ctrlc (void); /* clear the Control-C condition */ int disable_ctrlc (int); /* 1 to disable, 0 to enable Control-C detect */ int confirm_yesno(void); /* 1 if input is "y", "Y", "yes" or "YES" */ /* * STDIO based functions (can always be used) */ /* serial stuff */ int serial_printf (const char *fmt, ...) __attribute__ ((format (__printf__, 1, 2))); /* stdin */ int getc(void); int tstc(void); /* stdout */ void putc(const char c); void puts(const char *s); int printf(const char *fmt, ...) __attribute__ ((format (__printf__, 1, 2))); int vprintf(const char *fmt, va_list args); /* stderr */ #define eputc(c) fputc(stderr, c) #define eputs(s) fputs(stderr, s) #define eprintf(fmt,args...) fprintf(stderr,fmt ,##args) /* * FILE based functions (can only be used AFTER relocation!) */ #define stdin 0 #define stdout 1 #define stderr 2 #define MAX_FILES 3 int fprintf(int file, const char *fmt, ...) __attribute__ ((format (__printf__, 2, 3))); void fputs(int file, const char *s); void fputc(int file, const char c); int ftstc(int file); int fgetc(int file); /* 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 IPaddr_t getenv_IPaddr(char *var) { return string_to_ip(getenv(var)); } /* * CONSOLE multiplexing. */ #ifdef CONFIG_CONSOLE_MUX #include #endif int pcmcia_init (void); #ifdef CONFIG_STATUS_LED # 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 #ifdef CONFIG_CMD_READ int do_raw_read(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); #endif /* Define a null map_sysmem() if the architecture doesn't use it */ # ifndef CONFIG_ARCH_MAP_SYSMEM static inline void *map_sysmem(phys_addr_t paddr, unsigned long len) { return (void *)(uintptr_t)paddr; } static inline void unmap_sysmem(const void *vaddr) { } static inline phys_addr_t map_to_sysmem(const void *ptr) { return (phys_addr_t)(uintptr_t)ptr; } # endif #endif /* __ASSEMBLY__ */ #ifdef CONFIG_PPC /* * Has to be included outside of the #ifndef __ASSEMBLY__ section. * Otherwise might lead to compilation errors in assembler files. */ #include #endif /* Put only stuff here that the assembler can digest */ #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)) /* * ARCH_DMA_MINALIGN is defined in asm/cache.h for each architecture. It * is used to align DMA buffers. */ #ifndef __ASSEMBLY__ #include #endif /* * The ALLOC_CACHE_ALIGN_BUFFER macro is used to allocate a buffer on the * stack that meets the minimum architecture alignment requirements for DMA. * Such a buffer is useful for DMA operations where flushing and invalidating * the cache before and after a read and/or write operation is required for * correct operations. * * When called the macro creates an array on the stack that is sized such * that: * * 1) The beginning of the array can be advanced enough to be aligned. * * 2) The size of the aligned portion of the array is a multiple of the minimum * architecture alignment required for DMA. * * 3) The aligned portion contains enough space for the original number of * elements requested. * * The macro then creates a pointer to the aligned portion of this array and * assigns to the pointer the address of the first element in the aligned * portion of the array. * * Calling the macro as: * * ALLOC_CACHE_ALIGN_BUFFER(uint32_t, buffer, 1024); * * Will result in something similar to saying: * * uint32_t buffer[1024]; * * The following differences exist: * * 1) The resulting buffer is guaranteed to be aligned to the value of * ARCH_DMA_MINALIGN. * * 2) The buffer variable created by the macro is a pointer to the specified * type, and NOT an array of the specified type. This can be very important * if you want the address of the buffer, which you probably do, to pass it * to the DMA hardware. The value of &buffer is different in the two cases. * In the macro case it will be the address of the pointer, not the address * of the space reserved for the buffer. However, in the second case it * would be the address of the buffer. So if you are replacing hard coded * stack buffers with this macro you need to make sure you remove the & from * the locations where you are taking the address of the buffer. * * Note that the size parameter is the number of array elements to allocate, * not the number of bytes. * * This macro can not be used outside of function scope, or for the creation * of a function scoped static buffer. It can not be used to create a cache * line aligned global buffer. */ #define PAD_COUNT(s, pad) (((s) - 1) / (pad) + 1) #define PAD_SIZE(s, pad) (PAD_COUNT(s, pad) * pad) #define ALLOC_ALIGN_BUFFER_PAD(type, name, size, align, pad) \ char __##name[ROUND(PAD_SIZE((size) * sizeof(type), pad), align) \ + (align - 1)]; \ \ type *name = (type *) ALIGN((uintptr_t)__##name, align) #define ALLOC_ALIGN_BUFFER(type, name, size, align) \ ALLOC_ALIGN_BUFFER_PAD(type, name, size, align, 1) #define ALLOC_CACHE_ALIGN_BUFFER_PAD(type, name, size, pad) \ ALLOC_ALIGN_BUFFER_PAD(type, name, size, ARCH_DMA_MINALIGN, pad) #define ALLOC_CACHE_ALIGN_BUFFER(type, name, size) \ ALLOC_ALIGN_BUFFER(type, name, size, ARCH_DMA_MINALIGN) /* * DEFINE_CACHE_ALIGN_BUFFER() is similar to ALLOC_CACHE_ALIGN_BUFFER, but it's * purpose is to allow allocating aligned buffers outside of function scope. * Usage of this macro shall be avoided or used with extreme care! */ #define DEFINE_ALIGN_BUFFER(type, name, size, align) \ static char __##name[ALIGN(size * sizeof(type), align)] \ __aligned(align); \ \ static type *name = (type *)__##name #define DEFINE_CACHE_ALIGN_BUFFER(type, name, size) \ DEFINE_ALIGN_BUFFER(type, name, size, ARCH_DMA_MINALIGN) /* Pull in stuff for the build system */ #ifdef DO_DEPS_ONLY # include #endif #endif /* __COMMON_H_ */