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From: Dusan Radic <dusrad@gmail.com>
To: barebox@lists.infradead.org
Subject: barebox environment early loading
Date: Thu, 9 Sep 2021 13:58:28 +0200	[thread overview]
Message-ID: <CAFe1xey4MRgd8YhKePm-L9SEf2sqefcWieft9GHspvE20TZbZg@mail.gmail.com> (raw)

Hello there,

is there a possibility  to read an environment variable as soon as in
ipufb.c?
To be more accurate, before the frame buffer is initalised I need set
the bus_format manually and the correct value is stored in a non
volatile environment variable.
I have tried the following

const char* value;

value = getenv("nv.dataval");

However the result is always NULL.

If I try the same somewhere in board.c then I get the correct value,
but that ist too late to configure the frame buffer.

Has anyone managed to read the environment early, and if yes how? Do I
have to somehow manually load the environment path?  I have tried this
default_environment_path_set(default_environment_path); but it doesn't
seem to work.

I am using barebox 2017.12.0

Help would be appreciated.
Best regards,
Dule

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             reply	other threads:[~2021-09-09 13:21 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-09 11:58 Dusan Radic [this message]
2021-09-09 17:16 ` Oleksij Rempel

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