int do_flinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { #ifndef CONFIG_SYS_NO_FLASH ulong bank; #endif #ifdef CONFIG_HAS_DATAFLASH dataflash_print_info(); #endif #ifndef CONFIG_SYS_NO_FLASH if (argc == 1) { /* print info for all FLASH banks */ for (bank=0; bank <CONFIG_SYS_MAX_FLASH_BANKS; ++bank) { printf ("\nBank # %ld: ", bank+1); flash_print_info (&flash_info[bank]); } return 0; } bank = simple_strtoul(argv[1], NULL, 16); if ((bank < 1) || (bank > CONFIG_SYS_MAX_FLASH_BANKS)) { printf ("Only FLASH Banks # 1 ... # %d supported\n", CONFIG_SYS_MAX_FLASH_BANKS); return 1; } printf ("\nBank # %ld: ", bank); flash_print_info (&flash_info[bank-1]); #endif /* CONFIG_SYS_NO_FLASH */ return 0; }
void board_init_r(gd_t *id, ulong dest_addr) { ulong malloc_start; #if !defined(CONFIG_SYS_NO_FLASH) ulong flash_size; #endif gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r"); monitor_flash_len = (ulong)&__rel_dyn_end - (ulong)_start; /* Enable caches */ enable_caches(); debug("monitor flash len: %08lX\n", monitor_flash_len); board_init(); /* Setup chipselects */ /* * TODO: printing of the clock inforamtion of the board is now * implemented as part of bdinfo command. Currently only support for * davinci SOC's is added. Remove this check once all the board * implement this. */ #ifdef CONFIG_CLOCKS set_cpu_clk_info(); /* Setup clock information */ #endif serial_initialize(); debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr); #ifdef CONFIG_LOGBUFFER logbuff_init_ptrs(); #endif #ifdef CONFIG_POST post_output_backlog(); #endif /* The Malloc area is immediately below the monitor copy in DRAM */ malloc_start = dest_addr - TOTAL_MALLOC_LEN; mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN); #ifdef CONFIG_ARCH_EARLY_INIT_R arch_early_init_r(); #endif power_init_board(); #if !defined(CONFIG_SYS_NO_FLASH) puts("Flash: "); flash_size = flash_init(); if (flash_size > 0) { # ifdef CONFIG_SYS_FLASH_CHECKSUM print_size(flash_size, ""); /* * Compute and print flash CRC if flashchecksum is set to 'y' * * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX */ if (getenv_yesno("flashchecksum") == 1) { printf(" CRC: %08X", crc32(0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)); } putc('\n'); # else /* !CONFIG_SYS_FLASH_CHECKSUM */ print_size(flash_size, "\n"); # endif /* CONFIG_SYS_FLASH_CHECKSUM */ } else { puts(failed); hang(); } #endif #if defined(CONFIG_CMD_NAND) puts("NAND: "); nand_init(); /* go init the NAND */ #endif #if defined(CONFIG_CMD_ONENAND) onenand_init(); #endif #ifdef CONFIG_GENERIC_MMC puts("MMC: "); mmc_initialize(gd->bd); #endif #ifdef CONFIG_CMD_SCSI puts("SCSI: "); scsi_init(); #endif #ifdef CONFIG_HAS_DATAFLASH AT91F_DataflashInit(); dataflash_print_info(); #endif /* initialize environment */ if (should_load_env()) env_relocate(); else set_default_env(NULL); #if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI) arm_pci_init(); #endif stdio_init(); /* get the devices list going. */ jumptable_init(); #if defined(CONFIG_API) /* Initialize API */ api_init(); #endif console_init_r(); /* fully init console as a device */ #ifdef CONFIG_DISPLAY_BOARDINFO_LATE # ifdef CONFIG_OF_CONTROL /* Put this here so it appears on the LCD, now it is ready */ display_fdt_model(gd->fdt_blob); # else checkboard(); # endif #endif #if defined(CONFIG_ARCH_MISC_INIT) /* miscellaneous arch dependent initialisations */ arch_misc_init(); #endif #if defined(CONFIG_MISC_INIT_R) /* miscellaneous platform dependent initialisations */ misc_init_r(); #endif /* set up exceptions */ interrupt_init(); /* enable exceptions */ enable_interrupts(); /* Initialize from environment */ load_addr = getenv_ulong("loadaddr", 16, load_addr); #ifdef CONFIG_BOARD_LATE_INIT board_late_init(); #endif #ifdef CONFIG_FASTBOOT fastboot_setup(); #endif #ifdef CONFIG_BITBANGMII bb_miiphy_init(); #endif #if defined(CONFIG_CMD_NET) puts("Net: "); eth_initialize(gd->bd); #if defined(CONFIG_RESET_PHY_R) debug("Reset Ethernet PHY\n"); reset_phy(); #endif #endif #ifdef CONFIG_POST post_run(NULL, POST_RAM | post_bootmode_get(0)); #endif #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER) /* * Export available size of memory for Linux, * taking into account the protected RAM at top of memory */ { ulong pram = 0; uchar memsz[32]; #ifdef CONFIG_PRAM pram = getenv_ulong("pram", 10, CONFIG_PRAM); #endif #ifdef CONFIG_LOGBUFFER #ifndef CONFIG_ALT_LB_ADDR /* Also take the logbuffer into account (pram is in kB) */ pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024; #endif #endif sprintf((char *)memsz, "%ldk", (gd->ram_size / 1024) - pram); setenv("mem", (char *)memsz); } #endif #ifdef CONFIG_FASTBOOT check_fastboot(); #endif /* main_loop() can return to retry autoboot, if so just run it again. */ for (;;) { main_loop(); } /* NOTREACHED - no way out of command loop except booting */ }
static int initr_dataflash(void) { AT91F_DataflashInit(); dataflash_print_info(); return 0; }
void start_armboot (void) { init_fnc_t **init_fnc_ptr; char *s; int mmc_exist = 0; #if defined(CONFIG_VFD) || defined(CONFIG_LCD) unsigned long addr; #endif /* Pointer is writable since we allocated a register for it */ gd = (gd_t*)(_armboot_start - CONFIG_SYS_MALLOC_LEN - sizeof(gd_t)); /* compiler optimization barrier needed for GCC >= 3.4 */ __asm__ __volatile__("": : :"memory"); memset ((void*)gd, 0, sizeof (gd_t)); gd->bd = (bd_t*)((char*)gd - sizeof(bd_t)); memset (gd->bd, 0, sizeof (bd_t)); // gd->flags |= GD_FLG_RELOC; monitor_flash_len = _bss_start - _armboot_start; for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { if ((*init_fnc_ptr)() != 0) { hang (); } } /* armboot_start is defined in the board-specific linker script */ mem_malloc_init (_armboot_start - CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN); #ifndef CONFIG_SYS_NO_FLASH /* configure available FLASH banks */ display_flash_config (flash_init ()); #endif /* CONFIG_SYS_NO_FLASH */ #ifdef CONFIG_VFD # ifndef PAGE_SIZE # define PAGE_SIZE 4096 # endif /* * reserve memory for VFD display (always full pages) */ /* bss_end is defined in the board-specific linker script */ addr = (_bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); vfd_setmem (addr); gd->fb_base = addr; #endif /* CONFIG_VFD */ #ifdef CONFIG_LCD /* board init may have inited fb_base */ if (!gd->fb_base) { # ifndef PAGE_SIZE # define PAGE_SIZE 4096 # endif /* * reserve memory for LCD display (always full pages) */ /* bss_end is defined in the board-specific linker script */ addr = (_bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); lcd_setmem (addr); gd->fb_base = addr; } #endif /* CONFIG_LCD */ #if defined(CONFIG_CMD_NAND) puts ("NAND: "); nand_init(); /* go init the NAND */ #endif #if defined(CONFIG_CMD_ONENAND) onenand_init(); #endif #ifdef CONFIG_GENERIC_MMC puts ("MMC: "); mmc_exist = mmc_initialize (gd->bd); if (mmc_exist != 0) { puts ("0 MB\n"); } #endif #ifdef CONFIG_HAS_DATAFLASH AT91F_DataflashInit(); dataflash_print_info(); #endif /* initialize environment */ env_relocate (); #ifdef CONFIG_VFD /* must do this after the framebuffer is allocated */ drv_vfd_init(); #endif /* CONFIG_VFD */ #ifdef CONFIG_SERIAL_MULTI serial_initialize(); #endif /* IP Address */ gd->bd->bi_ip_addr = getenv_IPaddr ("ipaddr"); stdio_init (); /* get the devices list going. */ jumptable_init (); #if defined(CONFIG_API) /* Initialize API */ api_init (); #endif console_init_r (); /* fully init console as a device */ #if defined(CONFIG_ARCH_MISC_INIT) /* miscellaneous arch dependent initialisations */ arch_misc_init (); #endif #if defined(CONFIG_MISC_INIT_R) /* miscellaneous platform dependent initialisations */ misc_init_r (); #endif /* enable exceptions */ enable_interrupts (); /* Perform network card initialisation if necessary */ #ifdef CONFIG_DRIVER_TI_EMAC /* XXX: this needs to be moved to board init */ extern void davinci_eth_set_mac_addr (const u_int8_t *addr); if (getenv ("ethaddr")) { uchar enetaddr[6]; eth_getenv_enetaddr("ethaddr", enetaddr); davinci_eth_set_mac_addr(enetaddr); } #endif #if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96) /* XXX: this needs to be moved to board init */ if (getenv ("ethaddr")) { uchar enetaddr[6]; eth_getenv_enetaddr("ethaddr", enetaddr); smc_set_mac_addr(enetaddr); } #endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */ /* Initialize from environment */ if ((s = getenv ("loadaddr")) != NULL) { load_addr = simple_strtoul (s, NULL, 16); } #if defined(CONFIG_CMD_NET) if ((s = getenv ("bootfile")) != NULL) { copy_filename (BootFile, s, sizeof (BootFile)); } #endif #ifdef BOARD_LATE_INIT board_late_init (); #endif #ifdef CONFIG_BITBANGMII bb_miiphy_init(); #endif #if defined(CONFIG_CMD_NET) #if defined(CONFIG_NET_MULTI) puts ("Net: "); #endif eth_initialize(gd->bd); #if defined(CONFIG_RESET_PHY_R) debug ("Reset Ethernet PHY\n"); reset_phy(); #endif #endif /* main_loop() can return to retry autoboot, if so just run it again. */ for (;;) { main_loop (); } /* NOTREACHED - no way out of command loop except booting */ }
void board_init_r(gd_t *id, ulong dest_addr) { char *s; bd_t *bd; ulong malloc_start; #if !defined(CONFIG_SYS_NO_FLASH) ulong flash_size; #endif gd = id; bd = gd->bd; gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ monitor_flash_len = _end_ofs; /* * Enable D$: * I$, if needed, must be already enabled in start.S */ dcache_enable(); debug("monitor flash len: %08lX\n", monitor_flash_len); board_init(); /* Setup chipselects */ #ifdef CONFIG_SERIAL_MULTI serial_initialize(); #endif debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr); #ifdef CONFIG_LOGBUFFER logbuff_init_ptrs(); #endif #ifdef CONFIG_POST post_output_backlog(); #endif /* The Malloc area is immediately below the monitor copy in DRAM */ malloc_start = dest_addr - TOTAL_MALLOC_LEN; mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN); #if !defined(CONFIG_SYS_NO_FLASH) puts("Flash: "); flash_size = flash_init(); if (flash_size > 0) { # ifdef CONFIG_SYS_FLASH_CHECKSUM print_size(flash_size, ""); /* * Compute and print flash CRC if flashchecksum is set to 'y' * * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX */ s = getenv("flashchecksum"); if (s && (*s == 'y')) { printf(" CRC: %08X", crc32(0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)); } putc('\n'); # else /* !CONFIG_SYS_FLASH_CHECKSUM */ print_size(flash_size, "\n"); # endif /* CONFIG_SYS_FLASH_CHECKSUM */ } else { puts(failed); hang(); } #endif #if defined(CONFIG_CMD_NAND) puts("NAND: "); nand_init(); /* go init the NAND */ #endif #if defined(CONFIG_CMD_ONENAND) onenand_init(); #endif #ifdef CONFIG_GENERIC_MMC puts("MMC: "); mmc_initialize(bd); #endif #ifdef CONFIG_HAS_DATAFLASH AT91F_DataflashInit(); dataflash_print_info(); #endif /* initialize environment */ env_relocate(); #if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI) arm_pci_init(); #endif /* IP Address */ gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr"); stdio_init(); /* get the devices list going. */ jumptable_init(); #if defined(CONFIG_API) /* Initialize API */ api_init(); #endif console_init_r(); /* fully init console as a device */ #if defined(CONFIG_ARCH_MISC_INIT) /* miscellaneous arch dependent initialisations */ arch_misc_init(); #endif #if defined(CONFIG_MISC_INIT_R) /* miscellaneous platform dependent initialisations */ misc_init_r(); #endif /* set up exceptions */ interrupt_init(); /* enable exceptions */ enable_interrupts(); /* Perform network card initialisation if necessary */ #if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96) /* XXX: this needs to be moved to board init */ if (getenv("ethaddr")) { uchar enetaddr[6]; eth_getenv_enetaddr("ethaddr", enetaddr); smc_set_mac_addr(enetaddr); } #endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */ /* Initialize from environment */ s = getenv("loadaddr"); if (s != NULL) load_addr = simple_strtoul(s, NULL, 16); #if defined(CONFIG_CMD_NET) s = getenv("bootfile"); if (s != NULL) copy_filename(BootFile, s, sizeof(BootFile)); #endif #ifdef BOARD_LATE_INIT board_late_init(); #endif #ifdef CONFIG_BITBANGMII bb_miiphy_init(); #endif #if defined(CONFIG_CMD_NET) #if defined(CONFIG_NET_MULTI) puts("Net: "); #endif eth_initialize(gd->bd); #if defined(CONFIG_RESET_PHY_R) debug("Reset Ethernet PHY\n"); reset_phy(); #endif #endif #ifdef CONFIG_POST post_run(NULL, POST_RAM | post_bootmode_get(0)); #endif #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER) /* * Export available size of memory for Linux, * taking into account the protected RAM at top of memory */ { ulong pram; uchar memsz[32]; #ifdef CONFIG_PRAM char *s; s = getenv("pram"); if (s != NULL) pram = simple_strtoul(s, NULL, 10); else pram = CONFIG_PRAM; #else pram = 0; #endif #ifdef CONFIG_LOGBUFFER #ifndef CONFIG_ALT_LB_ADDR /* Also take the logbuffer into account (pram is in kB) */ pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024; #endif #endif sprintf((char *)memsz, "%ldk", (bd->bi_memsize / 1024) - pram); setenv("mem", (char *)memsz); } #endif /* main_loop() can return to retry autoboot, if so just run it again. */ for (;;) { main_loop(); } /* NOTREACHED - no way out of command loop except booting */ }
void board_init_r(gd_t *id, ulong dest_addr) { ulong malloc_start; #if !defined(CONFIG_SYS_NO_FLASH) ulong flash_size; #endif gd = id; gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r"); monitor_flash_len = _end_ofs;/*u-boot.lds中定义*/ /* Enable caches */ enable_caches(); debug("monitor flash len: %08lX\n", monitor_flash_len); board_init(); /* Setup chipselects//打印一些版本信息,电源管理信息 */ /* * TODO: printing of the clock inforamtion of the board is now * implemented as part of bdinfo command. Currently only support for * davinci SOC's is added. Remove this check once all the board * implement this. */ #ifdef CONFIG_CLOCKS set_cpu_clk_info(); /* Setup clock information */ #endif #ifdef CONFIG_SERIAL_MULTI #ifndef CONFIG_CPU_EXYNOS5410 serial_initialize(); #endif #endif debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr); #ifdef CONFIG_LOGBUFFER logbuff_init_ptrs(); #endif #ifdef CONFIG_POST post_output_backlog(); #endif /* The Malloc area is immediately below the monitor copy in DRAM */ malloc_start = dest_addr - TOTAL_MALLOC_LEN; mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN); #ifdef CONFIG_ARCH_EARLY_INIT_R arch_early_init_r(); #endif #if !defined(CONFIG_SYS_NO_FLASH) puts("Flash: "); flash_size = flash_init(); if (flash_size > 0) { # ifdef CONFIG_SYS_FLASH_CHECKSUM char *s = getenv("flashchecksum"); print_size(flash_size, ""); /* * Compute and print flash CRC if flashchecksum is set to 'y' * * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX */ if (s && (*s == 'y')) { printf(" CRC: %08X", crc32(0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)); } putc('\n'); # else /* !CONFIG_SYS_FLASH_CHECKSUM */ print_size(flash_size, "\n"); # endif /* CONFIG_SYS_FLASH_CHECKSUM */ } else { puts(failed); hang(); } #endif #if defined(CONFIG_CMD_NAND) puts("NAND: "); nand_init(); /* go init the NAND */ #endif #if defined(CONFIG_CMD_ONENAND) onenand_init(); #endif #ifdef CONFIG_GENERIC_MMC puts("MMC: "); mmc_initialize(gd->bd); #endif #ifdef CONFIG_HAS_DATAFLASH AT91F_DataflashInit(); dataflash_print_info(); #endif /* initialize environment */ env_relocate(); #if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI) arm_pci_init(); #endif stdio_init(); /* get the devices list going. */ jumptable_init(); #if defined(CONFIG_API) /* Initialize API */ api_init(); #endif console_init_r(); /* fully init console as a device */ #if defined(CONFIG_ARCH_MISC_INIT) /* miscellaneous arch dependent initialisations */ arch_misc_init(); #endif #if defined(CONFIG_MISC_INIT_R) /* miscellaneous platform dependent initialisations */ misc_init_r(); #endif /* set up exceptions */ interrupt_init(); /* enable exceptions */ enable_interrupts(); /* Perform network card initialisation if necessary */ #if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96) /* XXX: this needs to be moved to board init */ if (getenv("ethaddr")) { uchar enetaddr[6]; eth_getenv_enetaddr("ethaddr", enetaddr); smc_set_mac_addr(enetaddr); } #endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */ /* Initialize from environment */ load_addr = getenv_ulong("loadaddr", 16, load_addr); #ifdef CONFIG_BOARD_LATE_INIT board_late_init();//晚点执行的初始化在smdk5420.c #endif #ifdef CONFIG_BITBANGMII bb_miiphy_init(); #endif #if defined(CONFIG_CMD_NET) puts("Net: "); eth_initialize(gd->bd); #if defined(CONFIG_RESET_PHY_R) debug("Reset Ethernet PHY\n"); reset_phy(); #endif #endif #ifdef CONFIG_POST post_run(NULL, POST_RAM | post_bootmode_get(0)); #endif #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER) /* * Export available size of memory for Linux, * taking into account the protected RAM at top of memory */ { ulong pram = 0; uchar memsz[32]; #ifdef CONFIG_PRAM pram = getenv_ulong("pram", 10, CONFIG_PRAM); #endif #ifdef CONFIG_LOGBUFFER #ifndef CONFIG_ALT_LB_ADDR /* Also take the logbuffer into account (pram is in kB) */ pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024; #endif #endif sprintf((char *)memsz, "%ldk", (gd->ram_size / 1024) - pram); setenv("mem", (char *)memsz); } #endif /* main_loop() can return to retry autoboot, if so just run it again. */ for (;;) { main_loop();//进入命令行模式 } /* NOTREACHED - no way out of command loop except booting */ }
void board_init_r(gd_t *id, ulong dest_addr) { char *s; //bd_t *bd; ulong malloc_start; #ifdef CONFIG_NONCACHE_MEMORY uint malloc_noncache_start; #endif #if !defined(CONFIG_SYS_NO_FLASH) ulong flash_size; #endif int workmode; int ret; gd = id; //bd = gd->bd; gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ monitor_flash_len = _end_ofs; malloc_start = dest_addr - TOTAL_MALLOC_LEN - sizeof(struct spare_boot_head_t); #ifdef CONFIG_NONCACHE_MEMORY_SIZE malloc_start &= (~(0x00100000 -1)); malloc_noncache_start = malloc_start - CONFIG_NONCACHE_MEMORY_SIZE; gd->malloc_noncache_start = malloc_noncache_start; #endif /* Enable caches */ enable_caches(); debug("monitor flash len: %08lX\n", monitor_flash_len); board_init(); /* Setup chipselects */ #ifdef CONFIG_SERIAL_MULTI serial_initialize(); #endif debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr); #ifdef CONFIG_LOGBUFFER logbuff_init_ptrs(); #endif #ifdef CONFIG_POST post_output_backlog(); #endif /* The Malloc area is immediately below the monitor copy in DRAM */ mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN); #ifdef CONFIG_NONCACHE_MEMORY mem_noncache_malloc_init(malloc_noncache_start, CONFIG_NONCACHE_MEMORY_SIZE); #endif workmode = uboot_spare_head.boot_data.work_mode; debug("work mode %d\n", workmode); axp_reinit(); //uboot_spare_head.boot_data.work_mode = WORK_MODE_CARD_PRODUCT; #ifdef CONFIG_ARCH_HOMELET gpio_control(); #endif #if 0 #if !defined(CONFIG_SYS_NO_FLASH) puts("Flash: "); flash_size = flash_init(); if (flash_size > 0) { # ifdef CONFIG_SYS_FLASH_CHECKSUM print_size(flash_size, ""); /* * Compute and print flash CRC if flashchecksum is set to 'y' * * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX */ s = getenv("flashchecksum"); if (s && (*s == 'y')) { printf(" CRC: %08X", crc32(0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)); } putc('\n'); # else /* !CONFIG_SYS_FLASH_CHECKSUM */ print_size(flash_size, "\n"); # endif /* CONFIG_SYS_FLASH_CHECKSUM */ } else { puts(failed); hang(); } #endif #endif /* set up exceptions */ interrupt_init(); /* enable exceptions */ enable_interrupts(); sunxi_dma_init(); #ifdef CONFIG_ALLWINNER #ifdef DEBUG puts("ready to config storage\n"); #endif if((workmode == WORK_MODE_BOOT) || (workmode == WORK_MODE_CARD_PRODUCT)) { #if defined(CONFIG_SUNXI_DISPLAY) drv_disp_init(); #endif board_display_device_open(); board_display_layer_request(); } ret = sunxi_flash_handle_init(); if(!ret) { sunxi_partition_init(); } #else #if defined(CONFIG_CMD_NAND) if(!storage_type){ puts("NAND: "); nand_init(); /* go init the NAND */ } #endif/*CONFIG_CMD_NAND*/ #if defined(CONFIG_GENERIC_MMC) if(storage_type){ puts("MMC: "); mmc_initialize(bd); } #endif/*CONFIG_GENERIC_MMC*/ #endif/*CONFIG_ALLWINNER*/ #ifdef CONFIG_ARCH_HOMELET extern int check_boot_recovery_key(); extern int sprite_form_sysrecovery(); extern int sprite_led_init(void); extern int sprite_led_exit(int status); if (!check_boot_recovery_key()) { sprite_led_init(); ret = sprite_form_sysrecovery(); sprite_led_exit(ret); } #endif #ifdef CONFIG_HAS_DATAFLASH AT91F_DataflashInit(); dataflash_print_info(); #endif /* initialize environment */ env_relocate(); #if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI) arm_pci_init(); #endif /* IP Address */ gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr"); stdio_init(); /* get the devices list going. */ jumptable_init(); #if defined(CONFIG_API) /* Initialize API */ api_init(); #endif console_init_r(); /* fully init console as a device */ #if defined(CONFIG_ARCH_MISC_INIT) /* miscellaneous arch dependent initialisations */ arch_misc_init(); #endif #if defined(CONFIG_MISC_INIT_R) /* miscellaneous platform dependent initialisations */ misc_init_r(); #endif /* Perform network card initialisation if necessary */ #if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96) /* XXX: this needs to be moved to board init */ if (getenv("ethaddr")) { uchar enetaddr[6]; eth_getenv_enetaddr("ethaddr", enetaddr); smc_set_mac_addr(enetaddr); } #endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */ /* Initialize from environment */ s = getenv("loadaddr"); if (s != NULL) load_addr = simple_strtoul(s, NULL, 16); #if defined(CONFIG_CMD_NET) s = getenv("bootfile"); if (s != NULL) copy_filename(BootFile, s, sizeof(BootFile)); #endif #ifdef BOARD_LATE_INIT board_late_init(); #endif #ifdef CONFIG_BITBANGMII bb_miiphy_init(); #endif #if defined(CONFIG_CMD_NET) #if defined(CONFIG_NET_MULTI) puts("Net: "); #endif eth_initialize(gd->bd); #if defined(CONFIG_RESET_PHY_R) debug("Reset Ethernet PHY\n"); reset_phy(); #endif #endif #ifdef CONFIG_POST post_run(NULL, POST_RAM | post_bootmode_get(0)); #endif #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER) /* * Export available size of memory for Linux, * taking into account the protected RAM at top of memory */ { ulong pram; uchar memsz[32]; #ifdef CONFIG_PRAM char *s; s = getenv("pram"); if (s != NULL) pram = simple_strtoul(s, NULL, 10); else pram = CONFIG_PRAM; #else pram = 0; #endif #ifdef CONFIG_LOGBUFFER #ifndef CONFIG_ALT_LB_ADDR /* Also take the logbuffer into account (pram is in kB) */ pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024; #endif #endif sprintf((char *)memsz, "%ldk", (gd->ram_size / 1024) - pram); setenv("mem", (char *)memsz); } #endif //sprite_cartoon_test(); if(workmode == WORK_MODE_BOOT) { #if defined(CONFIG_SUNXI_SCRIPT_REINIT) { FATFS script_mount; int ret; uint read_bytes = 0; FIL script_fs; uchar *buf = NULL; f_mount(0, &script_mount); ret = f_open (&script_fs, "0:script.bin", FA_OPEN_EXISTING | FA_READ | FA_WRITE ); if(ret) { printf("cant open script.bin, maybe it is not exist\n"); } else { buf = (uchar *)malloc(100 * 1024); memset(buf, 0, 100 * 1024); if(!f_read(&script_fs, buf, 100 * 1024, &read_bytes)) { printf("f_read read bytes = %d\n", read_bytes); } f_close(&script_fs); puts("try to unlink file "); printf("%d\n", f_unlink("0:script.bin")); } f_mount(0, NULL); if(read_bytes > 0) { char *tmp_target_buffer = (char *)(CONFIG_SYS_TEXT_BASE - 0x01000000); sunxi_flash_exit(1); memcpy(tmp_target_buffer + uboot_spare_head.boot_head.uboot_length, buf, read_bytes); sunxi_sprite_download_uboot(tmp_target_buffer, uboot_spare_head.boot_data.storage_type, 1); reset_cpu(0); } if(buf) { free(buf); } } #endif printf("WORK_MODE_BOOT\n"); #ifdef CONFIG_ALLWINNER #if (defined(CONFIG_SUN6I) || defined(CONFIG_A50) || defined(CONFIG_SUN7I)) if(!ret) { #ifndef CONFIG_ARCH_HOMELET printf("board_status_probe\n"); board_status_probe(0); #endif printf("sunxi_bmp_display\n"); sunxi_bmp_display("bootlogo.bmp"); } #endif printf("WORK_MODE_BOOT\n"); #endif } /* main_loop() can return to retry autoboot, if so just run it again. */ for (;;) { main_loop(); } hang(); /* NOTREACHED - no way out of command loop except booting */ }
void start_armboot (void) { init_fnc_t **init_fnc_ptr; char *s; ulong size; #if defined(CONFIG_VFD) || defined(CONFIG_LCD) unsigned long addr; #endif #ifdef CFG_UBOOT_PROFILING unsigned int time_start_armboot = get_timer(0); unsigned int time_init_sequence; unsigned int time_misc_init; unsigned int time_env; unsigned int time_nand; unsigned int time_bat; unsigned int time_show_logo; unsigned int time_backlight; unsigned int time_sw_env; #endif #ifdef CFG_UBOOT_PROFILING boot_time = get_timer(0); #endif /* Pointer is writable since we allocated a register for it */ gd = (gd_t*)(_armboot_start - CONFIG_SYS_MALLOC_LEN - sizeof(gd_t)); /* compiler optimization barrier needed for GCC >= 3.4 */ __asm__ __volatile__("": : :"memory"); memset ((void*)gd, 0, sizeof (gd_t)); gd->bd = (bd_t*)((char*)gd - sizeof(bd_t)); memset (gd->bd, 0, sizeof (bd_t)); monitor_flash_len = _bss_start - _armboot_start; #ifdef CFG_UBOOT_PROFILING time_init_sequence = get_timer(0); #endif for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { if ((*init_fnc_ptr)() != 0) { hang (); } } /* armboot_start is defined in the board-specific linker script */ mem_malloc_init (_armboot_start - CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN); #ifdef CFG_UBOOT_PROFILING printf("[PROFILE] ------- init_sequence takes %d ms -------- \n", get_timer(time_init_sequence)); #endif #ifndef CONFIG_SYS_NO_FLASH /* configure available FLASH banks */ display_flash_config (flash_init ()); #endif /* CONFIG_SYS_NO_FLASH */ #ifdef CONFIG_VFD #ifndef PAGE_SIZE #define PAGE_SIZE 4096 #endif /* * reserve memory for VFD display (always full pages) */ /* bss_end is defined in the board-specific linker script */ addr = (_bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); size = vfd_setmem (addr); gd->fb_base = addr; #endif /* CONFIG_VFD */ #ifdef CONFIG_LCD #ifndef PAGE_SIZE #define PAGE_SIZE 4096 #endif /* * reserve memory for LCD display (always full pages) */ /* bss_end is defined in the board-specific linker script */ addr = (_bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); size = lcd_setmem (addr); gd->fb_base = addr; #endif /* CONFIG_LCD */ #ifdef CONFIG_HAS_DATAFLASH AT91F_DataflashInit(); dataflash_print_info(); #endif #ifdef CFG_UBOOT_PROFILING time_env = get_timer(0); #endif /* initialize environment */ env_relocate (); #ifdef CFG_UBOOT_PROFILING printf("[PROFILE] ------- env relocate takes %d ms -------- \n", get_timer(time_env)); #endif #ifdef CONFIG_VFD /* must do this after the framebuffer is allocated */ drv_vfd_init(); #endif /* CONFIG_VFD */ /* IP Address */ //gd->bd->bi_ip_addr = getenv_IPaddr ("ipaddr"); stdio_init (); /* get the devices list going. */ #ifdef CONFIG_CMC_PU2 load_sernum_ethaddr (); #endif /* CONFIG_CMC_PU2 */ jumptable_init (); //console_init_r (); /* fully init console as a device */ //marked by hong-rong #if defined(CONFIG_CMD_NAND) #ifdef CFG_UBOOT_PROFILING time_nand= get_timer(0); #endif puts ("NAND: "); nand_init(); /* go init the NAND */ #ifdef CFG_UBOOT_PROFILING printf("[PROFILE] ------- nand init takes %d ms -------- \n", get_timer(time_nand)); #endif #endif #if defined(CONFIG_ARCH_MISC_INIT) /* miscellaneous arch dependent initialisations */ arch_misc_init (); #endif #ifdef CFG_UBOOT_PROFILING time_misc_init= get_timer(0); #endif #if defined(CONFIG_MISC_INIT_R) /* miscellaneous platform dependent initialisations */ misc_init_r (); #endif #ifdef CFG_UBOOT_PROFILING printf("[PROFILE] ------- misc_init takes %d ms -------- \n", get_timer(time_misc_init)); #endif #ifdef CONFIG_GENERIC_MMC puts ("MMC: "); mmc_initialize (gd->bd); #endif #ifdef CFG_POWER_CHARGING #ifdef CFG_UBOOT_PROFILING time_bat= get_timer(0); #endif #if defined(MT6516) mt6516_bat_init(); #else mt65xx_bat_init(); #endif #ifdef CFG_UBOOT_PROFILING printf("[PROFILE] ------- battery init takes %d ms -------- \n", get_timer(time_bat)); #endif #else /* NOTE: if define CFG_POWER_CHARGING, will rtc_boot_check() in mt65xx_bat_init() */ rtc_boot_check(false); #endif #ifdef CFG_UBOOT_PROFILING time_show_logo= get_timer(0); #endif // Some driver refresh RAM data to LCM after sleeping out. // LCM must sleep out before backlight on. Or Users may see the mess data in LCM in a instance. mt65xx_disp_power(1); if(g_boot_mode != ALARM_BOOT) { mt65xx_disp_show_boot_logo(); } #ifdef CFG_UBOOT_PROFILING printf("[PROFILE] ------- show logo takes %d ms -------- \n", get_timer(time_show_logo)); #endif #ifdef CFG_UBOOT_PROFILING time_show_logo= get_timer(0); #endif #ifdef CFG_UBOOT_PROFILING time_backlight= get_timer(0); #endif mt65xx_backlight_on(); #ifdef CFG_UBOOT_PROFILING printf("[PROFILE] ------- backlight takes %d ms -------- \n", get_timer(time_backlight)); #endif #ifdef CFG_UBOOT_PROFILING time_sw_env= get_timer(0); #endif //***************** //* prepare mt65xx sw enviroment #if defined(MT6516) mt6516_sw_env(); #else mt65xx_sw_env(); #endif #ifdef CFG_UBOOT_PROFILING printf("[PROFILE] ------- sw_env takes %d ms -------- \n", get_timer(time_sw_env)); #endif #ifdef CFG_UBOOT_PROFILING printf("[PROFILE] ------- start_armboot takes %d ms -------- \n", get_timer(time_start_armboot)); #endif /* main_loop() can return to retry autoboot, if so just run it again */ for (;;) { main_loop (); } /* NOTREACHED - no way out of command loop except booting */ }
/* ************************************************************************ * * This is the next part if the initialization sequence: we are now * running from RAM and have a "normal" C environment, i. e. global * data can be written, BSS has been cleared, the stack size in not * that critical any more, etc. * ************************************************************************ */ void board_init_r(gd_t *id, ulong dest_addr) { char *s; //bd_t *bd; ulong malloc_start; #ifdef CONFIG_NONCACHE_MEMORY uint malloc_noncache_start; #endif #if !defined(CONFIG_SYS_NO_FLASH) ulong flash_size; #endif int workmode; int ret; #ifdef CONFIG_SUNXI_HDCP_IN_SECURESTORAGE int hdcpkey_enable=0; #endif char storage_type_buf[24] = {0}; char boot_mmc_buf[24] = {0}; gd = id; //bd = gd->bd; gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ monitor_flash_len = _end_ofs; malloc_start = dest_addr - TOTAL_MALLOC_LEN - sizeof(struct spare_boot_head_t); #ifdef CONFIG_NONCACHE_MEMORY_SIZE malloc_start &= (~(0x00100000 -1)); malloc_noncache_start = malloc_start - CONFIG_NONCACHE_MEMORY_SIZE; gd->malloc_noncache_start = malloc_noncache_start; #endif /* Enable caches */ enable_caches(); debug("monitor flash len: %08lX\n", monitor_flash_len); board_init(); /* Setup chipselects */ #ifdef CONFIG_SERIAL_MULTI serial_initialize(); #endif debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr); #ifdef CONFIG_LOGBUFFER logbuff_init_ptrs(); #endif #ifdef CONFIG_POST post_output_backlog(); #endif /* The Malloc area is immediately below the monitor copy in DRAM */ mem_malloc_init (malloc_start, TOTAL_MALLOC_LEN); #ifdef CONFIG_SMALL_MEMSIZE save_config(); #endif #ifdef CONFIG_NONCACHE_MEMORY mem_noncache_malloc_init(malloc_noncache_start, CONFIG_NONCACHE_MEMORY_SIZE); #endif #if defined(CONFIG_ARCH_HOMELET) check_physical_key_early(); #endif workmode = uboot_spare_head.boot_data.work_mode; debug("work mode %d\n", workmode); axp_reinit(); //uboot_spare_head.boot_data.work_mode = WORK_MODE_CARD_PRODUCT; #if defined(CONFIG_CPUS_STANDBY) //Ŀǰֻ��homelet��ʹ�� do_box_standby(); #endif #ifdef CONFIG_ARCH_HOMELET gpio_control(); #endif #if 0 #if !defined(CONFIG_SYS_NO_FLASH) puts("Flash: "); flash_size = flash_init(); if (flash_size > 0) { # ifdef CONFIG_SYS_FLASH_CHECKSUM print_size(flash_size, ""); /* * Compute and print flash CRC if flashchecksum is set to 'y' * * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX */ s = getenv("flashchecksum"); if (s && (*s == 'y')) { printf(" CRC: %08X", crc32(0, (const unsigned char *) CONFIG_SYS_FLASH_BASE, flash_size)); } putc('\n'); # else /* !CONFIG_SYS_FLASH_CHECKSUM */ print_size(flash_size, "\n"); # endif /* CONFIG_SYS_FLASH_CHECKSUM */ } else { puts(failed); hang(); } #endif #endif /* set up exceptions */ interrupt_init(); /* enable exceptions */ enable_interrupts(); sunxi_dma_init(); #ifdef CONFIG_USE_CIR //����ӿڣ�Ŀǰֻ���ں��� A20 if (uboot_spare_head.boot_data.work_mode == WORK_MODE_BOOT) { ir_setup(); } #endif #ifdef DEBUG puts("ready to config storage\n"); #endif #ifdef CONFIG_ARCH_HOMELET //for homlet to use one-key-recovery ret = sunxi_flash_handle_init(); if(!ret) { sunxi_partition_init(); } #endif #ifndef CONFIG_ARCH_SUN8IW8P1 if((workmode == WORK_MODE_BOOT) || (workmode == WORK_MODE_CARD_PRODUCT) || (workmode == WORK_MODE_SPRITE_RECOVERY)) { #else if((workmode == WORK_MODE_CARD_PRODUCT) || (workmode == WORK_MODE_SPRITE_RECOVERY)) { #endif #if (defined(CONFIG_SUNXI_DISPLAY) || defined(CONFIG_SUN7I_DISPLAY)) drv_disp_init(); #endif #ifdef CONFIG_SUNXI_HDCP_IN_SECURESTORAGE int tmp = 0; tmp = script_parser_fetch("hdmi_para", "hdmi_hdcp_enable", &hdcpkey_enable, 1); if((tmp) || (hdcpkey_enable != 1)) { board_display_device_open(); board_display_layer_request(); } #else board_display_device_open(); board_display_layer_request(); #endif } #ifndef CONFIG_ARCH_HOMELET //for pad used ret = sunxi_flash_handle_init(); if(!ret) { sunxi_partition_init(); } #endif #ifdef CONFIG_SUNXI_HDCP_IN_SECURESTORAGE //here: write key to hardware if(hdcpkey_enable==1) { char buffer[4096]; int data_len; int ret0; memset(buffer, 0, 4096); ret0 = sunxi_secure_storage_init(); if(ret0) { printf("sunxi init secure storage failed\n"); } else { ret0 = sunxi_secure_object_read("hdcpkey", buffer, 4096, &data_len); if(ret0) { printf("probe hdcp key failed\n"); } else { ret0 = smc_aes_bssk_decrypt_to_keysram(buffer, data_len); if(ret0) { printf("push hdcp key failed\n"); } else { board_display_device_open(); board_display_layer_request(); } } } } #endif #ifdef CONFIG_BOOT_A15 if(sunxi_sprite_download_boot0_simple()) { printf("rewrite boot0 to save boot cpu failed\n"); } #endif #ifndef CONFIG_SUNXI_SPINOR_PLATFORM sunxi_keydata_burn_by_usb(); #endif //#else //#if defined(CONFIG_CMD_NAND) // if(!storage_type){ // puts("NAND: "); // nand_init(); /* go init the NAND */ // } //#endif/*CONFIG_CMD_NAND*/ // //#if defined(CONFIG_GENERIC_MMC) // if(storage_type){ // puts("MMC: "); // mmc_initialize(bd); // } //#endif/*CONFIG_GENERIC_MMC*/ #ifdef CONFIG_HAS_DATAFLASH AT91F_DataflashInit(); dataflash_print_info(); #endif /* initialize environment */ env_relocate(); /* setenv storage_type */ sprintf(storage_type_buf, "%d", uboot_spare_head.boot_data.storage_type); if (setenv("storage_type", storage_type_buf)) printf("set storage_type=%s fail\n", storage_type_buf); if (uboot_spare_head.boot_data.storage_type == 1) sprintf(boot_mmc_buf, "%s", "0"); else sprintf(boot_mmc_buf, "%s", "2"); setenv("boot_mmc", boot_mmc_buf); #if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI) arm_pci_init(); #endif /* IP Address */ gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr"); stdio_init(); /* get the devices list going. */ jumptable_init(); #if defined(CONFIG_API) /* Initialize API */ api_init(); #endif console_init_r(); /* fully init console as a device */ #if defined(CONFIG_ARCH_MISC_INIT) /* miscellaneous arch dependent initialisations */ arch_misc_init(); #endif #if defined(CONFIG_MISC_INIT_R) /* miscellaneous platform dependent initialisations */ misc_init_r(); #endif /* Perform network card initialisation if necessary */ #if defined(CONFIG_DRIVER_SMC91111) || defined (CONFIG_DRIVER_LAN91C96) /* XXX: this needs to be moved to board init */ if (getenv("ethaddr")) { uchar enetaddr[6]; eth_getenv_enetaddr("ethaddr", enetaddr); smc_set_mac_addr(enetaddr); } #endif /* CONFIG_DRIVER_SMC91111 || CONFIG_DRIVER_LAN91C96 */ /* Initialize from environment */ s = getenv("loadaddr"); if (s != NULL) load_addr = simple_strtoul(s, NULL, 16); #if defined(CONFIG_CMD_NET) s = getenv("bootfile"); if (s != NULL) copy_filename(BootFile, s, sizeof(BootFile)); #endif #ifdef BOARD_LATE_INIT board_late_init(); #endif #ifdef CONFIG_BITBANGMII bb_miiphy_init(); #endif #if defined(CONFIG_CMD_NET) #if defined(CONFIG_NET_MULTI) puts("Net: "); #endif eth_initialize(gd->bd); #if defined(CONFIG_RESET_PHY_R) debug("Reset Ethernet PHY\n"); reset_phy(); #endif #endif #ifdef CONFIG_POST post_run(NULL, POST_RAM | post_bootmode_get(0)); #endif #if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER) /* * Export available size of memory for Linux, * taking into account the protected RAM at top of memory */ { ulong pram; uchar memsz[32]; #ifdef CONFIG_PRAM char *s; s = getenv("pram"); if (s != NULL) pram = simple_strtoul(s, NULL, 10); else pram = CONFIG_PRAM; #else pram = 0; #endif #ifdef CONFIG_LOGBUFFER #ifndef CONFIG_ALT_LB_ADDR /* Also take the logbuffer into account (pram is in kB) */ pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024; #endif #endif sprintf((char *)memsz, "%ldk", (gd->ram_size / 1024) - pram); setenv("mem", (char *)memsz); } #endif //sprite_cartoon_test(); if(workmode == WORK_MODE_BOOT) { #if defined(CONFIG_SUNXI_SCRIPT_REINIT) { FATFS script_mount; int ret; uint read_bytes = 0; FILE script_fs; uchar *buf = NULL; f_mount_ex(0, &script_mount, 0); ret = f_open (&script_fs, "0:script.bin", FA_OPEN_EXISTING | FA_READ | FA_WRITE ); if(ret) { printf("cant open script.bin, maybe it is not exist\n"); } else { buf = (uchar *)malloc(100 * 1024); memset(buf, 0, 100 * 1024); if(!f_read(&script_fs, buf, 100 * 1024, &read_bytes)) { printf("f_read read bytes = %d\n", read_bytes); } f_close(&script_fs); puts("try to unlink file "); printf("%d\n", f_unlink("0:script.bin")); } f_mount(0, NULL, NULL); if(read_bytes > 0) { char *tmp_target_buffer = (char *)(CONFIG_SYS_TEXT_BASE - 0x01000000); sunxi_flash_exit(1); memcpy(tmp_target_buffer + uboot_spare_head.boot_head.uboot_length, buf, read_bytes); sunxi_sprite_download_uboot(tmp_target_buffer, uboot_spare_head.boot_data.storage_type, 1); reset_cpu(0); } if(buf) { free(buf); } } #endif printf("WORK_MODE_BOOT\n"); #if (defined(CONFIG_SUNXI_DISPLAY) || defined(CONFIG_SUN7I_DISPLAY)) if(!ret) { #ifndef CONFIG_ARCH_HOMELET printf("board_status_probe\n"); board_status_probe(0); #endif if(!gd->chargemode) { if(sunxi_advert_disp_probe()) { printf("sunxi_bmp_logo_display\n"); sunxi_bmp_display("bootlogo.bmp"); } else { if(sunxi_advert_display("Reserve0", "advert.bmp")) { printf("sunxi_bmp_logo_display\n"); sunxi_bmp_display("bootlogo.bmp"); } } } else { printf("sunxi_bmp_charger_display\n"); sunxi_bmp_display("bat\\battery_charge.bmp"); } } #endif #ifdef CONFIG_READ_LOGO_FOR_KERNEL sunxi_read_bootlogo("boot_logo"); #endif } /* main_loop() can return to retry autoboot, if so just run it again. */ for (;;) { main_loop(); } hang(); /* NOTREACHED - no way out of command loop except booting */ } void hang(void) { puts("### ERROR ### Please RESET the board ###\n"); for (;;); }