From: Lukasz Majewski <lukma@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] mlo and u-boot
Date: Thu, 23 Feb 2017 10:41:48 +0100 [thread overview]
Message-ID: <20170223104148.04f2f119@jawa> (raw)
In-Reply-To: <CANMsd00wD2nTqcXVZzd7TAN9E9G1F2-ZOqSXvq52G=r2_Dw+sw@mail.gmail.com>
On Wed, 22 Feb 2017 23:53:32 +0530
Ryan <ryanphilips19@googlemail.com> wrote:
> Hello,
>
> I am using AM43XX based board. The bootloader is divided into spl
> u-boot (MLO) and u-boot.bin
>
> I wanted to check what variables are shared between them. How does MLO
> a seperate binary
> share the boot mode and mmcdev to u-boot so that it can use the
> appropriate mmcdev to find the
> kernel.
In u-boot, there is the concept of "environment variables", which are
stored in a separate non-persistent memory (like eMMC, NAND,) or file
system.
For example BBB uses eMMC to store envs.
It is possible to read envs in MLO and u-boot.
>
> thanks,
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
Best regards,
Lukasz Majewski
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
next prev parent reply other threads:[~2017-02-23 9:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-22 18:23 [U-Boot] mlo and u-boot Ryan
2017-02-23 9:41 ` Lukasz Majewski [this message]
2017-02-23 19:04 ` Andrew F. Davis
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170223104148.04f2f119@jawa \
--to=lukma@denx.de \
--cc=u-boot@lists.denx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.