public inbox for linux-mtd@lists.infradead.org
 help / color / mirror / Atom feed
From: Deepak Saxena <dsaxena@plexity.net>
To: linux-mtd@lists.infradead.org
Subject: RedBoot partition not @ end of flash...
Date: Tue, 2 May 2006 01:50:45 -0700	[thread overview]
Message-ID: <20060502085045.GA15204@plexity.net> (raw)


I've got a board with a 32MiB flash (128K SectorSize) with the redboot table
only covering the first (32MiB - SectorSize) and the rest setup as OTP from
what I understand. What is the proper way to deal with this? What I'm doing 
right now is a heinous hack:

        ixp425_mtd->size -= ixp425_mtd->erasesize;
        /* Try to parse RedBoot partitions */
        npart = parse_mtd_partitions(ixp425_mtd, probes, &parsed_parts, 0);
        if (npart > 0) {
                res = add_mtd_partitions(ixp425_mtd, parsed_parts, npart);
        } else {
                printk("IXP425 Flash: Using static MTD partitions.\n");
                res = add_mtd_partitions(ixp425_mtd, ixp425_partitions,
                                         NB_OF(ixp425_partitions));
        }
        ixp425_mtd->size += ixp425_mtd->erasesize;

I tried setting the window size to (32MiB - SectorSize) before probing
but that failed miserably. One other thought I had was to create a
static partition map dividing the flash and then parse partitions
on the first region. Can the code handle recursive parsing?

I doubt I'm the first one to deal with this...

Tnx,
~Deepak

-- 
Deepak Saxena - dsaxena@plexity.net - http://www.plexity.net

I am not a consumer. My existence on this planet is not defined by my
relationship to a producer of goods.  I was not put on this planet to
consume goods from a company for their profit. - Michael W.

             reply	other threads:[~2006-05-02  8:59 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-05-02  8:50 Deepak Saxena [this message]
2006-05-02 12:56 ` RedBoot partition not @ end of flash David Vrabel

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=20060502085045.GA15204@plexity.net \
    --to=dsaxena@plexity.net \
    --cc=linux-mtd@lists.infradead.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