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Net: Detected MAC-ID:00:21:21:83:a7:5d地址怎么改？

guangxing zhang
Prodigy 60 points


请问怎么能改变网卡的mac地址？

以下是控制串口输出：
TI8148-GP rev 3.0

ARM clk: 1000MHz
DDR clk: 400MHz

I2C: ready
DRAM: 2 GiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1

Net: Detected MAC-ID:00:21:21:83:a7:5d

Hit any key to stop autoboot: 0
Loading file "boot/uImage" from mmc device 0:1 (xxa1)
2480356 bytes read
## Booting kernel from Legacy Image at 81000000 ...
Image Name: Linux-2.6.37-VRm-2.01
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2480292 Bytes = 2.4 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK

Starting kernel ...

  • 0
    TI__Guru**** 155073 points

    你好，

    你在uboot停下来，用命令就可以改啊

    https://e2e.ti.com/support/embedded/linux/f/354/t/189782

  • 0 回复 Chris Meng
    Prodigy 60 points

    感谢你的回复，我是新手，怎么停下来？如果停下来我怎么登陆到linux来执行我的命令？

    谢谢

  • 0 回复 guangxing zhang
    TI__Guru**** 155073 points

    你好，

    先在uboot里面ctrl+C试试看能否停下来，http://processors.wiki.ti.com/index.php/Change_U-Boot_bootdelay_setting。

    如果不行，就直接修改uboot代码里么的bootdelay设置。

    这个是Linux的基础问题，建议你可以在网上搜索一下相关内容。

  • 0 回复 Chris Meng
    Prodigy 60 points

    我看文章以下方法

    方法一：

    TI8168_EVM# setenv ethaddr 02:01:03:01:01:01

    TI8168_EVM#setenv bootargs 'console=ttyO0,115200n8 root=/dev/ram rw initrd=0x81000000,128M  eth=$(ethaddr) mem=512M'

    TI8168_EVM#setenv bootcmd 'bootm 0x80800000'

    方法二：

    Mac address reading logic is done in the arch/arm/mach-omap2/devices.c file. This logic can be modified to have custom mac id from eeprom or i2c so that custom mac id is used in kernel emac driver.

    针对我的硬件，两种方法我该怎么做，能详细点吗？

    VRmDR3> printenv
    bootcmd=if mmc rescan 0; then if ext2load mmc 0:1 0x81000000 boot/uImage; then bootm; else echo Kernel not found on eMMC part. 1; fi; else echo eMMC not found!; fi
    bootdelay=1
    baudrate=115200
    autoload=yes
    verify=yes
    bootargs=console=ttyO0,115200n8 rootwait root=/dev/mmcblk0p1 ro mem=384M@0x80000000 mem=320M@0x9FC00000 vmalloc=1280M ip=off notifyk.vpssm3_sva=0xBF900000
    stdin=serial
    stdout=serial
    stderr=serial
    ethaddr=00:21:21:83:a7:5d
    ethact=cpsw

    Environment size: 450/65532 bytes