Linux MIPS Architecture development
 help / color / mirror / Atom feed
From: Sean Parker <supinlick@yahoo.com>
To: linux-mips@linux-mips.org
Subject: Linux Boot RAM Determination
Date: Tue, 17 Jun 2008 10:45:01 -0700 (PDT)	[thread overview]
Message-ID: <368058.32705.qm@web51908.mail.re2.yahoo.com> (raw)

Hello -

  We're developing a PMC-Sierra RM9000 system, and when Linux boots it seems to only see 256M RAM (cat /proc/meminfo -> MemTotal=256M), despite a Crucial 1GB double-sided SODIMM card.

  The boot code is PMON, and it recognizes all 1GB (dimm0:2 Ranks each 512MB) and prints as much when it's done.

  Is there a setting in the Linux source (we're using a single elf image with ramfs integrated) that might be limiting the MemTotal/RAM size found by Linux? I couldn't find anywhere in the Linux code (patched by PMC) that mentions reading the DDR DCR's to inspect what the configured RAM sizes/offsets are. Any ideas?

  Thanks and God Bless,
    Sean Parker 




      

             reply	other threads:[~2008-06-17 17:46 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-17 17:45 Sean Parker [this message]
2008-06-17 18:15 ` Linux Boot RAM Determination Florian Fainelli

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=368058.32705.qm@web51908.mail.re2.yahoo.com \
    --to=supinlick@yahoo.com \
    --cc=linux-mips@linux-mips.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