Odd question, but how big can I make a U-Boot environment variable before it fails?
Essentially what type is a U-boot environment variable?
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It depends slightly on what you're doing. The overall environment is limited to CONFIG_ENV_SIZE. The amount of text you can input at a given time is CONFIG_SYS_CBSIZE.
Tom Rini
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Also relevant: `cmd_nvmedit.c::_do_env_set` and definition of `ENTRY` struct in `search.h` – tarabyte Mar 31 '17 at 18:23