public inbox for u-boot@lists.denx.de
 help / color / mirror / Atom feed
From: Detlev Zundel <dzu@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] U-boot : bootdelay: require your help
Date: Fri, 15 Jul 2011 09:16:07 +0200	[thread overview]
Message-ID: <m262n4t3ns.fsf@ohwell.denx.de> (raw)
In-Reply-To: <ADF757329B387846A8189F0BACC766EE428B31B366@CHN-HCLT-EVS07.HCLT.CORP.HCL.IN> (Phani Ram's message of "Wed, 13 Jul 2011 16:50:10 +0530")

Hi Phani,

> I am using a MPC8572 costume board. I am using U-boot as the boot
> loader. I accidently made the bootdelay to 0 and I have the valid
> kernel , rootfs in flash. The bootargs is "root=/dev/ram rw
> console=ttyS0,115200".
>
>
>
> So I am not able to stop booting the board at the u-boot prompt. Can
> you pls let me know how can I access/change the uboot params from the
> Linux user application.

You can check if your configuration includes CONFIG_ZERO_BOOTDELAY_CHECK
(see doc/README.autoboot).  In this case you should still be able to
stop the boot process by continuously hitting a key during startup.

If this is not the case, then you'll need to use the tool to change the
U-Boot environment from Linux.  For details see tools/env/README.  When
you have this working, simply adjust bootdelay again.

Cheers
  Detlev

-- 
He who can properly define and divide is to be considered a god.
                                        -- Plato
--
DENX Software Engineering GmbH,      MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich,  Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: dzu at denx.de

      reply	other threads:[~2011-07-15  7:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-13 11:20 [U-Boot] U-boot : bootdelay: require your help Phani
2011-07-15  7:16 ` Detlev Zundel [this message]

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=m262n4t3ns.fsf@ohwell.denx.de \
    --to=dzu@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox