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RedBoot partition not @ end of flash...

DISCUSSION Deepak Saxena 2 participants 2 messages May 2, 2006 Memory technology devices (MTD)

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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

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Deepak Saxena - [email protected] - 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.
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Quoted 4 lines · Deepak Saxena

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:

'redboot.directory=-2' command line option?

David Vrabel

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David Vrabel, Design Engineer

Arcom, Clifton Road           Tel: +44 (0)1223 411200 ext. 3233
Cambridge CB1 7EA, UK         Web: http://www.arcom.com/