Determining U-Boot Version

Depending on context, you can determine your U-Boot revision in one of several ways:

1. The U-Boot build date can be viewed as the first line of USB console output when the unit is powered on. For example:

U-Boot 2016.03-00408-gd450758c91 (Oct 10 2019 - 11:59:08 -0700)

CPU:   Freescale i.MX6UL rev1.2 at 396 MHz
...

2. U-Boot has a version command that outputs similar version information to what is shown above.

3. At a Linux shell, the following command prints the version strings of any U-Boot and/or SPL image that is present in eMMC:

strings /dev/mmcblk0boot0 | grep '^U-Boot .*(.*)'

The output is the same string(s) that will be printed on the console at board startup.