i.MX ProcessorsのトピックRe: Clean the emmc problem

Clean the emmc problem

yenchou — Thu, 24 May 2018 11:08:02 GMT

Hi All,

I used the freescale demo image android_M6.0.1_2.1.0_image_6dqpsabresd and the android_m6.0.1_2.1.0_tool.

I want to clean the emmc data with mfgtool,but don't success.

I used the command:

<CMD state="Updater" type="push" body="$ dd if=/dev/zero of=/dev/mmcblk%mmc%">clear emmc</CMD>

then occur the log:

UTP: sending Non-success to kernel for command $ dd if=/dev/zero of=/dev/mmcblk2.
utp_poll: exit with status 256

Dose anybody have some methods to solve the problem?

Thank you with your help.

Have a great day,

Yen

Bio_TICFSL — Fri, 25 May 2018 15:01:18 GMT

Hi chou,

If you want to clean the eMMC you need uboot, and write

mmc write 0 0 10000

to erase the first 64K blocks of the eMMC

yenchou — Mon, 28 May 2018 03:12:53 GMT

Hi Bio_TICFSL,

Thank you for your assistance.

The command "mmc write 0 0 10000" is used to break the uboot partition.

But I want to clean all the emmc data and prove the emmc is clean.

What can I do with the status?

I wish you a nice day.