U-Boot Error while Flashing Linux into Colibri iMX.6

Hello,

While flashing Embedded Linux into Colibri iMX.6, we faced an error.

We prepared an SD card using update.sh script given in Embedded Linux Image and plugged it into Colibri Iris Board and fired following commands over X13 (RS232 Serial) connector:
run setupdate
run update
The error we are facing is “Command patch_ddr_size not found”.

Last time when we performed same procedure, we succeeded without any such error, in that scenario following version of U-Boot was installed on iMX.6
U-Boot 2016.11-2.7.4+g1b121c6 (Oct 04 2017 - 22:18:20 +0000)

while as of now following version is preinstalled in iMX.6 :
U-Boot 2016.11-1.7.0+gf4db39ecb6 (Jul 31 2018 - 11:24:02 +0000)

Kindly look into the matter and give a solution.

Thank you.

https://www.toradex.com/community/questions/31070/set-patch-ddr-size-from-linux.html