移植2013Uboot启动信息如下：有些是自己添加的：仅供参考

港控/mmm° 2022-06-16 01:17 127阅读 0赞

**
    
    移植2013Uboot启动信息
    ---------------
    
    如下：有些是自己添加的：仅供参考**；
    注意自己的串口一定要修改，在配置文件中：s5p_goni_.h 或则smdkv210_single.h
    Goni # Uart OK
    DDR OK
    OK
    
    
    U-Boot 2013.10 (May 01 2017 - 20:06:45)for wdh210
    
    （1000MHZ 是自己之后在初始时钟时候出来的，之前的是400Mhz）
    CPU:  S5PV210@1000MHz(OK!)
    Board:  Wdh210(wdh也是在代码中修改的。)
    I2C:   ready
    DRAM:  512 MiB
    2MMC:   SAMSUNG SDHCI: 0（2是自己调试代码添加的）
    *** Warning - bad CRC, using default environment
    
    In:    serial
    Out:   serial
    Err:   serial
    Hit any key to stop autoboot:  0
    
    uboot命令行如下：**重点内容**
    -------------------
    Goni # ?（命令行如下）
    ?       - alias for 'help'
    base    - print or set address offset
    bdinfo  - print Board Info structure
    boot    - boot default, i.e., run 'bootcmd'
    bootd   - boot default, i.e., run 'bootcmd'
    bootm   - boot application image from memory
    chpart  - change active partition
    cmp     - memory compare
    coninfo - print console devices and information
    cp      - memory copy
    crc32   - checksum calculation
    dcache  - enable or disable data cache
    echo    - echo args to console
    editenv - edit environment variable
    env     - environment handling commands
    exit    - exit script
    false   - do nothing, unsuccessfully
    go      - start application at address 'addr'
    help    - print command description/usage
    icache  - enable or disable instruction cache
    iminfo  - print header information for application image
    itest   - return true/false on integer compare
    loadb   - load binary file over serial line (kermit mode)
    loads   - load S-Record file over serial line
    loadx   - load binary file over serial line (xmodem mode)
    loady   - load binary file over serial line (ymodem mode)
    loop    - infinite loop on address range
    md      - memory display
    mm      - memory modify (auto-incrementing address)
    mmc     - MMC sub system
    mmcinfo - display MMC info
    mtdparts- define flash/nand partitions
    mw      - memory write (fill)
    nm      - memory modify (constant address)
    pmic    - PMIC
    printenv- print environment variables
    reginfo - print register information
    reset   - Perform RESET of the CPU
    run     - run commands in an environment variable
    saveenv - save environment variables to persistent storage
    setenv  - set environment variables
    showvar - print local hushshell variables
    source  - run script from memory
    test    - minimal test like /bin/sh
    true    - do nothing, successfully
    version - print monitor, compiler and linker version
    
    二环境变量的打印：
    ---------
    
    标题Goni # printenv
    baudrate=115200
    bootargs=root=/dev/mtdblock8 ubi.mtd=8 ubi.mtd=3 ubi.mtd=6 rootfstype=cramfs ${ console} ${ meminfo} ${ mtdparts}
    bootblock=9
    bootchart=set opts init=/sbin/bootchartd; run bootcmd
    bootcmd=run ubifsboot
    bootdelay=10
    bootk=onenand read 0x30007FC0 0xc00000 0x600000;bootm 0x30007FC0
    boottrace=setenv opts initcall_debug; run bootcmd
    console=console=ttySAC2,115200n8
    flashboot=set bootargs root=/dev/mtdblock${ bootblock} rootfstype=${ rootfstype} ubi.mtd=${ ubiblock} ubi.mtd=3 ubi.mtd=6 ${ opts} ${ lcdinfo} ${ console} ${ meminfo} ${ mtdparts}; run bootk
    meminfo=mem=80M mem=256M@0x40000000 mem=128M@0x50000000
    mmcblk=/dev/mmcblk1p1
    mmcboot=set bootargs root=${ mmcblk} rootfstype=${ rootfstype} ubi.mtd=${ ubiblock} ubi.mtd=3 ubi.mtd=6 ${ opts} ${ lcdinfo} ${ console} ${ meminfo} ${ mtdparts}; run bootk
    mtdparts=mtdparts=samsung-onenand:1m(bootloader),256k(params),2816k(config),8m(csa),7m(kernel),1m(log),12m(modem),60m(qboot),-(UBI)
    opts=always_resume=1
    ramboot=set bootargs root=/dev/ram0 rw rootfstype=ext2 ${ console} ${ meminfo} initrd=0x33000000,8M ramdisk=8192
    rootfstype=cramfs
    tftpboot=set bootargs root=ubi0!rootfs rootfstype=ubifs rootflags=bulk_read,no_chk_data_crc ubi.mtd=${ ubiblock} ubi.mtd=3 ubi.mtd=6 ${ opts} ${ lcdinfo} ${ console} ${ meminfo} ${ mtdparts}; tftp 0x30007FC0 uImage; bootm 0x30007FC0
    ubi=enabled
    ubiblock=8
    ubifsboot=set bootargs root=ubi0!rootfs rootfstype=ubifs rootflags=bulk_read,no_chk_data_crc ubi.mtd=${ ubiblock} ubi.mtd=3 ubi.mtd=6 ${ opts} ${ lcdinfo} ${ console} ${ meminfo} ${ mtdparts}; run bootk
    updateb=onenand erase 0x0 0x100000; onenand write 0x32008000 0x0 0x100000
    updatek=onenand erase 0xc00000 0x600000;onenand write 0x31008000 0xc00000 0x600000
    updateu=onenand erase 0x01560000 0x1eaa0000;onenand write 0x32000000 0x1260000 0x8C0000
    verify=n
    
    三：测试命令：
    md.b  20000000 10 
    显示0x20000000 为初始地址的字节显示；
    md(memory dispaly )
    (md.[b | w | l ]) 都可以的
    
    -------