Hi Simon,

On Tue, 31 Oct 2023 at 17:07, SIMON BABY simonkbaby@gmail.com wrote:

Hello , Can I know if I could generate uboot env file in binary format as part of my build process ? Currently it generate as a text file .

There is the tools/mkenvimage program:

mkenvimage [-h] [-r] [-b] [-p <byte>] -s <environment partition size> -o <output> <input file>

This tool takes a key=value input file (same as would a `printenv' show) and generates the corresponding environment image, ready to be flashed.

The input file is in format: key1=value1 key2=value2 ... Empty lines are skipped, and lines with a # in the first column are treated as comments (also skipped). -r : the environment has multiple copies in flash -b : the target is big endian (default is little endian) -p <byte> : fill the image with <byte> bytes instead of 0xff bytes -V : print version information and exit

If the input file is "-", data is read from standard input

You can build with 'make u-boot-initial-env' to get a tool called printinitialenv to run, which emits the environment. Or you can look in include/generated/ to see the env files from the build.

If you would like to send a documentation patch, it could go here:

https://u-boot.readthedocs.io/en/latest/usage/environment.html

(in the source tree this is doc/usage/environment.html)

Regards, Simon