View source for Transclusion: CL-SOM-iMX7: U-Boot: Firmware Update

=== Updating from TFTP server ===
* Setup a TFTP server
* Put the firmware binary image {{filename|cl-som-imx7-firmware}} from [http://www.compulab.com/products/computer-on-modules/cl-som-imx7-freescale-i-mx-7-system-on-module/#devres U-Boot package for CL-SOM-iMX7] in the root directory of the TFTP server
* Setup U-Boot networking:
: for dynamic IP configuration:
<pre>
CL-SOM-iMX7 # dhcp
</pre>
: or for static IP configuration:
<pre>
CL-SOM-iMX7 # setenv ipaddr <ip address>
</pre>
* Setup the TFTP server ip address:
<pre>
CL-SOM-iMX7 # setenv serverip <server ip>
</pre>
* Download the firmware binary into the memory:
<pre>
CL-SOM-iMX7 # tftpboot ${loadaddr} cl-som-imx7-firmware
</pre>
* Proceed to [[#Flashing images|Flashing images]] section

=== Flashing images ===
* Make U-Boot probe the on-board SPI flash:
<pre>
CL-SOM-iMX7 # sf probe
</pre>
* Erase the on-board SPI flash:
<pre>
CL-SOM-iMX7 # sf erase 0 ${ubootsize}
</pre>
* Write the firmware image into the on-board SPI flash:
<pre>
CL-SOM-iMX7 # sf write ${loadaddr} 0 ${ubootsize}
</pre>
* Reset the CL-SOM-iMX7 evaluation platform.

=== Default environment ===
It is recommended to set default environment after updating the U-Boot version:
<pre>
CL-SOM-iMX7 # env default -a
CL-SOM-iMX7 # saveenv
</pre>