I had inbuilt eMMC in my board. I am using i.MX6UL platform.
I want to partition my inbuilt eMMC and I want to copy files from USB storage to eMMC at U-Boot prompt. Can you explain what command I can use.
If you provided the script it is more helpful.
Thank you for your reply.
@there is no filesystem in u-boot.
From the U-boot Quick reference manual I found that, the command "fatload" is used to load binary file from a dos filesystem. I know how to use /load the files from eMMC if the eMMC is in DOS partition.
"there is no filesystem in u-boot." means ?
Can I use "fatload" command for USB storage also if the USB storage is in fat format?
@so there is no command to copy files from USB storage to EMMC.
Then how I can make use of USB storage at U-boot level?
I can able to use the file/binary from USB storage and eMMC both using fatload command.
fatload usb 0 addredd1 filename - Use/Load the file from USB storage to Memory
fatload mmc 0 address2 filename - Use/Load the file from eMMC to Memory.
Above command works.
But my requirement is, I need to copy a binary file from USB storage to eMMC. I need to copy binary file from memory to eMMC which is already copied to memory by USB.
Here what addresses I can use? How I can came to know what range of addresses I can use for this general purpose operation (write/read)?
Is there any command to read uboot from emmc? I am loading uboot from USB and we have requirement to read uboot file from emmc. As uboot does not has file system can we make use of mmc read/write command ?
Please try to answer this question.