[U-Boot] setenv only works in command line. Not working when called in the code

[Julyberry]

Hello,

I am adding a new library which is being called in common/main.c.

In that library, I am updating U-Boot environment variables which are
accessed from Linux as well.

While getenv() always works fine, but setenv() does not work. The value is
not updated. 
setenv works correctly if I use it in u-boot command line or fw_setenv in
Linux.

I also tried to use run_command(). I actually get result, 0 which means
success. however, the value is still not updated when the device finally
boots up in Linux. 
I also use 'fsload' command in my library with run_command(). That works
fine.

Can someone help with this?

Thanks a lot.



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