U-boot启动过程.docx

U-Boot 1.1.6 (Nov 26 2010 - 08:49:16)DRAM: 64 MBFlash: 2 MBNAND: 256 MiB* Warning - bad CRC or NAND, using default environmentIn: serialOut: serialErr: serialUPLLVal M:38h,P:2h,S:2hMPLLVal M:5ch,P:1h,S:1hCLKDIVN:5h+-+| S3C2440A USB Downloader ver R0.03 2004 Jan |+-+USB: IN_ENDPOINT:1 OUT_ENDPOINT:3FORMAT: +NOTE: Power off/on or press the reset button for 1 sec in order to get a valid USB device address.Hit any key to stop autoboot: 0 平台开关：NORFLASH使用SecureCRT软件监控给嵌入式平台上电或复位时，按PC机键盘的任意键后出现：# 100ask Bootloader for OpenJTAG #n Download u-boot to Nand Flasho Download u-boot to Nor Flashk Download Linux kernel uImagej Download root_jffs2 imagey Download root_yaffs imaged Download to SDRAM & Runz Download zImage into RAMg Boot linux from RAMf Format the Nand Flashs Set the boot parametersb Boot the systemr Reboot u-bootq Quit from menuEnter your selection:对于“Download”开头的菜单项，它用来启动USB下载，选择这些菜单项后，要在主机上使用DNW工具发送文件。若不按任何按键，嵌入式平台将进入启动Linux过程。Booting Linux .NAND read: device 0 offset 0x60000, size 0x200000Reading data from 0x25f800 - 100% complete. 2097152 bytes read: OK# Booting image at 30007fc0 . Image Name: Linux-2.6.22.6 Created: 2013-05-11 7:09:50 UTC Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 1848668 Bytes = 1.8 MB Load Address: 30008000 Entry Point: 30008000 Verifying Checksum . OK XIP Kernel Image . OKStarting kernel .Uncompressing Linux. done, booting the kernel.Linux version 2.6.22.6 (bookbook-desktop) (gcc version 3.4.5) #1 Sat May 11 15:09:41 CST 2013CPU: ARM920T 41129200 revision 0 (ARMv4T), cr=c0007177Machine: SMDK2440Memory policy: ECC disabled, Data cache writebackCPU S3C2440A (id 0x32440001)S3C244X: core 400.000 MHz, memory 100.000 MHz, peripheral 50.000 MHzS3C24XX Clocks, (c) 2004 Simtec ElectronicsCLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL onCPU0: D VIVT write-back cacheCPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 setsCPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 setsBuilt 1 zonelists. Total pages: 16256Kernel command line: noinitrd root=/dev/mtdblock3 init=/linuxrc console=ttySAC0irq: clearing subpending status 00000002PID hash table entries: 256 (order: 8, 1024 bytes)timer tcon=00500000, tcnt a2c1, tcfg 00000200,00000000, usec 00001eb8Console: colour dummy device 80x30Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)Memory: 64MB = 64MB totalMemory: 60976KB available (3264K code, 458K data, 140K init)Mount-cache hash table entries: 512CPU: Testing write buffer coherency: okNET: Registered protocol family 16S3C2410 Power Management, (c) 2004 Simtec ElectronicsS3C2440: Initialising architectureS3C2440: IRQ SupportS3C2440: Clock Support, DVS offS3C24XX DMA Driver, (c) 2003-2004,2006 Simtec ElectronicsDMA channel 0 at c4800000, irq 33DMA channel 1 at c4800040, irq 34DMA channel 2 at c4800080, irq 35DMA channel 3 at c48000c0, irq 36SCSI subsystem initializedusbcore: registered new interface driver usbfsusbcore: registered new interface driver hubusbcore: registered new device driver usbNET: Registered protocol family 2IP route cache hash table entries: 1024 (order: 0, 4096 bytes)TCP established hash table entries: 2048 (order: 2, 16384 bytes)TCP bind hash table entries: 2048 (order: 1, 8192 bytes)TCP: Hash tables configured (established 2048 bind 2048)TCP reno registeredNetWinder Floating Point Emulator V0.97 (double precision)Registering GDB sysrq handlerJFFS2 version 2.2. (NAND) 2001-2006 Red Hat, Inc.yaffs May 11 2013 15:08:01 Installing. io scheduler noop registeredio scheduler anticipatory registered (default)io scheduler deadline registeredio scheduler cfq registeredConsole: switching to colour frame buffer device 60x34fb0: s3c2410fb frame buffer devicelp: driver loaded but no devices foundppdev: user-space parallel port driverS3C2410 Watchdog Timer, (c) 2004 Simtec ElectronicsSerial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enableds3c2440-uart.0: s3c2410_serial0 at MMIO map 0x50000000 mem 0xf0400000 (irq = 70) is a S3C2440s3c2440-uart.1: s3c2410_serial1 at MMIO map 0x50004000 mem 0xf0404000 (irq = 73) is a S3C2440s3c2440-uart.2: s3c2410_serial2 at MMIO map 0x50008000 mem 0xf0408000 (irq = 76) is a S3C2440RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksizeloop: module loadedline 400 I/O: c486a000, VID: 90000a46 line 408 I/O: c486a000, VID: 90000a46 error version, chip_revision = 0x1a, chip_info = 0x3id_val=0S3C24XX NAND Driver, (c) 2004 Simtec Electronicss3c2440-nand s3c2440-nand: Tacls=3, 30ns Twrph0=7 70ns, Twrph1=3 30nsNAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit)Scanning device for bad blocksBad eraseblock 54 at 0x006c0000Bad eraseblock 482 at 0x03c40000Bad eraseblock 945 at 0x07620000Bad eraseblock 977 at 0x07a20000Creating 4 MTD partitions on NAND 256MiB 3,3V 8-bit:0x00000000-0x00040000 : bootloader0x00040000-0x00060000 : params0x00060000-0x00260000 : kernel0x00260000-0x10000000 : roots3c2410-ohci s3c2410-ohci: S3C24XX OHCIs3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000usb usb1: configuration #1 chosen from 1 choicehub 1-0:1.0: USB hub foundhub 1-0:1.0: 2 ports detectedInitializing USB Mass Storage driver.usbcore: registered new interface driver usb-storageUSB Mass Storage support registered.mice: PS/2 mouse device common for all mices3c2410 TouchScreen successfully loadedinput: s3c2410 TouchScreen as /class/input/input0S3C24XX RTC, (c) 2004,2006 Simtec Electronicss3c2440-i2c s3c2440-i2c: slave address 0x10s3c2440-i2c s3c2440-i2c: bus frequency set to 390 KHzs3c2440-i2c s3c2440-i2c: i2c-0: S3C I2C adaptermapped channel 0 to 0s3c2440-sdi s3c2440-sdi: powered down.s3c2440-sdi s3c2440-sdi: initialisation done.s3c2440-sdi s3c2440-sdi: running at 0kHz (requested: 0kHz).s3c2440-sdi s3c2440-sdi: running at 196kHz (requested: 195kHz).s3c2440-sdi s3c2440-sdi: running at 196kHz (requested: 195kHz).s3c2440-sdi s3c2440-sdi: running at 196kHz (requested: 195kHz).usbcore: registered new interface driver hiddevs3c2440-sdi s3c2440-sdi: CMDTIMEOUT #2 op:UNKNOWN(8) arg:0x000001aa flags:0x0875 retries:0 Status:nothing to completes3c2440-sdi s3c2440-sdi: CMDTIMEOUT #3 op:APP_CMD(55) arg:0x00000000 flags:0x0875 retries:0 Status:nothing to completeusbcore: registered new interface driver usbhiddrivers/hid/usbhid/hid-core.c: v2.6:USB HID core driverAdvanced Linux Sound Architecture Driver Version 1.0.14 (Thu May 31 09:03:25 2007 UTC).ASoC version 0.13.1s3c2440-sdi s3c2440-sdi: CMDTIMEOUT #4 op:APP_CMD(55) arg:0x00000000 flags:0x0875 retries:0 Status:nothing to completes3c2440-sdi s3c2440-sdi: CMDTIMEOUT #5 op:APP_CMD(55) arg:0x00000000 flags:0x0875 retries:0 Status:nothing to completes3c2410iis_probe.s3c2440-sdi s3c2440-sdi: CMDTIMEOUT #6 op:APP_CMD(55) arg:0x00000000 flags:0x0875 retries:0 Status:nothing to completes3c2440-sdi s3c2440-sdi: CMDTIMEOUT #7 op:ALL_SEND_OCR(1) arg:0x00000000 flags:0x0861 retries:0 Status:nothing to completes3c2440-sdi s3c2440-sdi: powered down.UDA1341 audio driver initializedALSA device list: No soundcards found.TCP cubic registeredNET: Registered protocol family 1drivers/rtc/hctosys.c: unable to open rtc device (rtc0)UDF-fs: No partition found (1)yaffs: dev is 32505859 name is mtdblock3yaffs: passed flags yaffs: Attempting MTD mount on 31.3, mtdblock3yaffs: auto selecting yaffs2block 36 is badblock 464 is badblock 927 is badblock 959 is badVFS: Mounted root (yaffs filesystem).Freeing init memory: 140Kinit started: BusyBox v1.7.0 (2008-01-22 10:04:09 EST)starting pid 764, tty : /etc/init.d/rcSPlease press Enter to activate this console. tsdev (compaq touchscreen emulation) is scheduled for removal.See Documentation/feature-removal-schedule.txt for details.Warning: TimeZone:data Cant create a valid data object for Europe/OsloWarning: could not register serverprocess -/bin/sh (pid 772) exited. Scheduling it for restart.Please press Enter to activate this console. starting pid 787, tty /dev/s3c2410_serial0: /bin/sh#DNW下载CD1中： 第0课第8节_win7下不能使用dnw烧写的替代方法windows版本：1. dnw.exe是一个USB工具，通过USB发送文件给具有USB下载功能的bootloader。工具本身的使用方法为(要发送成功，单板必须运行具有USB下载功能的bootloader)： 在“Configuration - Options” 菜单里设置下载地址“Download Address” 通过“USB Port - Transmit”菜单项选择、发送文件2. 开发板的u-boot启动时，在串口工具上输入空格键，u-boot将输出如下菜单：# 100ask Bootloader for OpenJTAG #n Download u-boot to Nand Flasho Download u-boot to Nor Flash / 如果是Nand Flash启动的话，这个菜单项没有k Download Linux kernel uImagej Download