Programming eMMC on i.MX6

This post intends to answer the question of programming the eMMC memory you can find on our Nitrogen6_MAX or Nit6_SoloX devices.

Although there are many different approaches available based on Linux or the MFG Tools, this post will focus on two solutions provided under U-Boot.

This feature is fully explained here:

Here is a quick summary:

Plug a micro-USB cable from your host machine to the target
Connect the board serial output (console) to your computer
- On the host machine, start a terminal software such as minicom for Linux or TeraTerm for Windows
- Set the connection baudrate to 115200 with no hardware flow control
Power up the board and stop auto-boot process to get U-Boot prompt
- Simply enter any character on the terminal software to stop auto-boot
Enable the UMS Gadget for the eMMC

U-Boot > ums 0 mmc 1

On the host machine, you should now see a new USB drive attached, you can now flash it
- On Linux you can simply use the dd utility

~$ zcat .img.gz | sudo dd of=/dev/sdX bs=1M

This feature is fully explained here:

Here is a quick summary:

Connect the board serial output (console) to your computer
- On the host machine, start a terminal software such as minicom for Linux or TeraTerm for Windows
- Set the connection baudrate to 115200 with no hardware flow control
Power up the board and stop auto-boot process to get U-Boot prompt
- Simply enter any character on the terminal software to stop auto-boot
Load the gzipped image into RAM
- This can be done by reading the image from USB, TFTP or MMC
- Below is an example if the image is copied on a SDCard

U-Boot > load mmc 0 10008000 my.img.gz

U-Boot > gzwrite mmc 1 10008000 0x$filesize 100000 0