From: "tiejun.chen" <tiejun.chen@windriver.com>
To: "Arshad, Farrukh" <Farrukh_Arshad@mentor.com>
Cc: "linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: Kernel not booting when supplying boot parameter mem
Date: Tue, 27 Dec 2011 19:07:30 +0800 [thread overview]
Message-ID: <4EF9A6F2.8020708@windriver.com> (raw)
In-Reply-To: <93CD5F41FDBC6042A6B449764F3B35CC050C9F21@EU-MBX-03.mgc.mentorg.com>
Arshad, Farrukh wrote:
> Greetings All,
>
> I have a basic question. I have 512 MB memory. I want my kernel to use only last 128 MB of memory starting from address 0x10000000. I have configured the kernel CONFIG_PHYSICAL_START=0x10000000 and in kernel boot parameter I have set mem=128M. In this scenario my kernel is not booting and it just stuck after uncompressing it. If I do not provide mem=128M boot parameter my kernel boots fine, but in that case I can not restrict kernel to use only 128M memory. Why supplying mem=128M causing kernel to fail.
>
Any kernel option else is configured, such as CONFIG_KERNEL_START and
CONFIG_RELOCATABLE?
Or any u-boot argument is reconfigured, such as 'bootm_low', 'bootm_mapsize' and
'bootm_size'.
Tiejun
next prev parent reply other threads:[~2011-12-27 11:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-23 15:07 Kernel not booting when supplying boot parameter mem Arshad, Farrukh
2011-12-27 11:07 ` tiejun.chen [this message]
2011-12-28 6:05 ` Arshad, Farrukh
2011-12-28 6:18 ` tiejun.chen
2011-12-28 9:26 ` Arshad, Farrukh
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=4EF9A6F2.8020708@windriver.com \
--to=tiejun.chen@windriver.com \
--cc=Farrukh_Arshad@mentor.com \
--cc=linuxppc-dev@lists.ozlabs.org \
/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;
as well as URLs for NNTP newsgroup(s).