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 */ }
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 */ }
/* go init the NAND */ static int initr_onenand(void) { puts("NAND: "); onenand_init(); return 0; }
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 */ }
int do_onenand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) { int ret = 0; switch (argc) { case 0: case 1: printf("Usage:\n%s\n", cmdtp->usage); return 1; case 2: if (strncmp(argv[1], "open", 4) == 0) { onenand_init(); return 0; } printf("%s\n", onenand_mtd.name); return 0; default: /* At least 4 args */ if (strncmp(argv[1], "erase", 5) == 0) { struct erase_info instr = { .callback = NULL, }; ulong start, size; ulong block; char *endtail; int clean = 0; struct jffs2_unknown_node cleanmarker; struct mtd_oob_ops ops = { .datbuf = NULL, .oobbuf = (uint8_t *)&cleanmarker, .ooblen = 8, .ooboffs= 0, .mode = MTD_OOB_PLACE, }; if (strncmp(argv[2], "block", 5) == 0) { start = simple_strtoul(argv[3], NULL, 10); endtail = strchr(argv[3], '-'); size = simple_strtoul(endtail + 1, NULL, 10) - start; } else if (strncmp(argv[2], "clean", 5) == 0) { cleanmarker.magic = JFFS2_MAGIC_BITMASK; cleanmarker.nodetype = JFFS2_NODETYPE_CLEANMARKER; cleanmarker.totlen = 8; start = simple_strtoul(argv[3], NULL, 10); size = simple_strtoul(argv[4], NULL, 10); start >>= onenand_chip.erase_shift; size >>= onenand_chip.erase_shift; /* Don't include the end block */ size--; clean = 1; printf("ready to erase with cleanmarker\n"); } else { start = simple_strtoul(argv[2], NULL, 10); size = simple_strtoul(argv[3], NULL, 10); start >>= onenand_chip.erase_shift; size >>= onenand_chip.erase_shift; /* Don't include the end block */ size--; } if (!size || size < 0) size = 0; printf("Erase begin with %luth block, erase size is %lu blocks\n", start, size); for (block = start; block <= start + size; block++) { instr.addr = block << onenand_chip.erase_shift; instr.len = 1 << onenand_chip.erase_shift; ret = onenand_erase(&onenand_mtd, &instr); if (ret) { printf("erase failed %lu\n", block); break; } if (clean == 1) { ret = onenand_write_oob(&onenand_mtd, instr.addr, &ops); if (ret) { printf("write OOB failed %lu\n", block); break; } } } return 0; } if (strncmp(argv[1], "dump", 4) == 0) { ulong ofs = simple_strtoul(argv[2], NULL, 16); onenand_dump(&onenand_mtd, ofs); printf("Done\n"); return 0; } if (strncmp(argv[1], "read", 4) == 0) { ulong addr = simple_strtoul(argv[2], NULL, 16); ulong ofs = simple_strtoul(argv[3], NULL, 16); size_t len = simple_strtoul(argv[4], NULL, 16); int oob = strncmp(argv[1], "read.oob", 8) ? 0 : 1; struct mtd_oob_ops ops; ops.mode = MTD_OOB_PLACE; if (oob) { ops.len = 0; ops.datbuf = NULL; ops.ooblen = len; ops.oobbuf = (u_char *) addr; } else { ops.len = len; ops.datbuf = (u_char *) addr; ops.ooblen = 0; ops.oobbuf = NULL; } ops.retlen = ops.oobretlen = 0; onenand_mtd.read_oob(&onenand_mtd, ofs, &ops); printf("Done\n"); return 0; } if (strncmp(argv[1], "write", 5) == 0) { ulong addr = simple_strtoul(argv[2], NULL, 16); ulong ofs = simple_strtoul(argv[3], NULL, 16); size_t len = simple_strtoul(argv[4], NULL, 16); size_t retlen = 0; struct mtd_oob_ops ops = { .datbuf = (uint8_t *) addr, .len = len, .oobbuf = (uint8_t *) addr, .ooblen = len, .mode = MTD_OOB_PLACE, }; onenand_mtd.owner = "UBOOT"; if (strncmp(argv[1], "write.yaffs", 11) == 0) { onenand_write_oob(&onenand_mtd, ofs, &ops); } else onenand_write(&onenand_mtd, ofs, len, &retlen, (u_char *) addr); printf("Done\n"); return 0; } if (strncmp(argv[1], "block", 5) == 0) { ulong addr = simple_strtoul(argv[2], NULL, 16); ulong block = simple_strtoul(argv[3], NULL, 10); ulong page = simple_strtoul(argv[4], NULL, 10); size_t len = simple_strtol(argv[5], NULL, 10); ulong ofs; int oob = strncmp(argv[1], "block.oob", 9) ? 0 : 1; struct mtd_oob_ops ops; ops.mode = MTD_OOB_PLACE; ofs = block << onenand_chip.erase_shift; if (page) ofs += page << onenand_chip.page_shift; if (!len) { if (oob) ops.ooblen = 64; else ops.len = 512; } if (oob) { ops.datbuf = NULL; ops.oobbuf = (u_char *) addr; } else { ops.datbuf = (u_char *) addr; ops.oobbuf = NULL; } ops.retlen = ops.oobretlen = 0; onenand_read_oob(&onenand_mtd, ofs, &ops); return 0; } break; }
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) { #ifndef CONFIG_SYS_NO_FLASH ulong size; #endif extern void malloc_bin_reloc(void); #ifndef CONFIG_ENV_IS_NOWHERE extern char *env_name_spec; #endif bd_t *bd; gd = id; gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr); gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE; monitor_flash_len = (ulong)&uboot_end_data - dest_addr; #if defined(CONFIG_NEEDS_MANUAL_RELOC) /* * We have to relocate the command table manually */ fixup_cmdtable(&__u_boot_cmd_start, (ulong)(&__u_boot_cmd_end - &__u_boot_cmd_start)); #endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */ /* there are some other pointer constants we must deal with */ #ifndef CONFIG_ENV_IS_NOWHERE env_name_spec += gd->reloc_off; #endif bd = gd->bd; /* The Malloc area is immediately below the monitor copy in DRAM */ mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off - TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN); malloc_bin_reloc(); #ifndef CONFIG_SYS_NO_FLASH /* configure available FLASH banks */ size = flash_init(); display_flash_config(size); bd->bi_flashsize = size; #endif bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; #if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE bd->bi_flashoffset = monitor_flash_len; /* reserved area for U-Boot */ #else bd->bi_flashoffset = 0; #endif #ifdef CONFIG_CMD_NAND puts("NAND: "); nand_init(); /* go init the NAND */ #endif #if defined(CONFIG_CMD_ONENAND) onenand_init(); #endif /* relocate environment function pointers etc. */ env_relocate(); /* IP Address */ bd->bi_ip_addr = getenv_IPaddr("ipaddr"); #if defined(CONFIG_PCI) /* * Do pci configuration */ pci_init(); #endif /** leave this here (after malloc(), environment and PCI are working) **/ /* Initialize stdio devices */ stdio_init(); jumptable_init(); /* Initialize the console (after the relocation and devices init) */ console_init_r(); /** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/ /* Initialize from environment */ load_addr = getenv_ulong("loadaddr", 16, load_addr); #if defined(CONFIG_CMD_NET) { char *s = getenv("bootfile"); if (s != NULL) copy_filename(BootFile, s, sizeof(BootFile)); } #endif #ifdef CONFIG_CMD_SPI puts("SPI: "); spi_init(); /* go init the SPI */ puts("ready\n"); #endif #if defined(CONFIG_MISC_INIT_R) /* miscellaneous platform dependent initialisations */ misc_init_r(); #endif #ifdef CONFIG_BITBANGMII bb_miiphy_init(); #endif #if defined(CONFIG_CMD_NET) puts("Net: "); eth_initialize(gd->bd); #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) { #ifndef CONFIG_SYS_NO_FLASH ulong size; #endif bd_t *bd; gd = id; gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr); gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE; monitor_flash_len = image_copy_end() - dest_addr; serial_initialize(); bd = gd->bd; /* The Malloc area is immediately below the monitor copy in DRAM */ mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off - TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN); #ifndef CONFIG_SYS_NO_FLASH /* configure available FLASH banks */ size = flash_init(); display_flash_config(size); bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; bd->bi_flashsize = size; #if CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE bd->bi_flashoffset = monitor_flash_len; /* reserved area for U-Boot */ #else bd->bi_flashoffset = 0; #endif #else bd->bi_flashstart = 0; bd->bi_flashsize = 0; bd->bi_flashoffset = 0; #endif #ifdef CONFIG_CMD_NAND puts("NAND: "); nand_init(); /* go init the NAND */ #endif #if defined(CONFIG_CMD_ONENAND) onenand_init(); #endif /* relocate environment function pointers etc. */ env_relocate(); #if defined(CONFIG_PCI) /* * Do pci configuration */ pci_init(); #endif /** leave this here (after malloc(), environment and PCI are working) **/ /* Initialize stdio devices */ stdio_init(); jumptable_init(); /* Initialize the console (after the relocation and devices init) */ console_init_r(); /** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/ /* Initialize from environment */ load_addr = getenv_ulong("loadaddr", 16, load_addr); #ifdef CONFIG_CMD_SPI puts("SPI: "); spi_init(); /* go init the SPI */ puts("ready\n"); #endif #if defined(CONFIG_MISC_INIT_R) /* miscellaneous platform dependent initialisations */ misc_init_r(); #endif #ifdef CONFIG_BITBANGMII bb_miiphy_init(); #endif #if defined(CONFIG_CMD_NET) puts("Net: "); eth_initialize(gd->bd); #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 */ }