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AM335xEmmc启动,分区格式化问题

大家好,

eMMC启动方式,eMMC应该如何分区

我用SD卡方式启动后,在文件系统用fdisk分区eMMC后,无法启动一直打印CCCCCCC

不分区,直接将eMMC使用mkfs.vfat 格式化后,启动失败,应该是分区过大(eMMC大小4GB),错误信息如下:

U-Boot SPL 1.01.01.166 (20180920 - 17:54:59)
Trying to boot from MMC2

** Partition 1 not valid on device 1 **
spl_register_fat_device: fat register err - -1
spl_load_image_fat: error reading image u-boot.img, err - -1
SPL: failed to boot from all boot devices
### ERROR ### Please RESET the board ###