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am335x的uboot启动问题



移植2014后出现该问题

U-Boot 2014.10 (Sep 07 2015 - 22:26:23)

       Watchdog enabled I2C:   ready DRAM:  512 MiB NAND:  1024 MiB MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1 *** Warning - bad CRC, using default environment

Net:   <ethaddr> not set. Validating first E-fuse MAC cpsw, usb_ether Hit any key to stop autoboot:  0 switch to partitions #0, OK mmc0 is current device SD/MMC found on device 0 ** Unable to read file boot.scr ** ** Unable to read file uEnv.txt ** ** No partition table - mmc 0 ** Card did not respond to voltage select! SD/MMC found on device 1 Card did not respond to voltage select! ** Bad device mmc 1 ** Card did not respond to voltage select! ** Bad device mmc 1 ** Card did not respond to voltage select! ** Bad device mmc 1 ** Booting from nand ...

NAND read: incorrect device type in u-boot-spl-os

NAND read: incorrect device type in kernel Bad Linux ARM zImage magic!

怎办呢,请高手指教,我是菜鸟