[U-Boot] [PATCH] [ARM] Apollon UBI support v3

Kyungmin Park kmpark at infradead.org
Mon Nov 3 00:35:42 CET 2008


On Mon, Nov 3, 2008 at 6:00 AM, Magnus Lilja <lilja.magnus at gmail.com> wrote:
> Dear Kyungmin Park,
>
> I've now used your patch series to add UBI support to the i.MX31
> Litekit board (in the NAND device present on that board) and have some
> additional comments on the series.
>
> 2008/10/28 Kyungmin Park <kmpark at infradead.org>:
>> Now you can use the UBI at apollon board
>>
>> Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
>> ---
>> diff --git a/board/apollon/ubi.c b/board/apollon/ubi.c
>> new file mode 100644
>> index 0000000..10dd6e7
>> --- /dev/null
>> +++ b/board/apollon/ubi.c
>> @@ -0,0 +1,48 @@
>> +/*
>> + * board/apollon/ubi.c
>> + *
>> + *  Copyright (C) 2008 Samsung Electronics
>> + *  Kyungmin Park <kyungmin.park at samsung.com>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> + */
>> +
>> +#include <common.h>
>> +#include <linux/mtd/mtd.h>
>> +#include <linux/mtd/partitions.h>
>> +#include <jffs2/load_kernel.h>
>> +#include <ubi_uboot.h>
>> +
>> +int ubi_board_scan(void)
>> +{
>> +       struct mtd_device *dev;
>> +       struct part_info *part;
>> +       struct mtd_partition mtd_part;
>> +       char buffer[32];
>> +       u8 pnum;
>> +       int err;
>> +
>> +       if (mtdparts_init() != 0)
>> +               return 1;
>> +
>> +       if (find_dev_and_part("onenand0,4", &dev, &pnum, &part) != 0)
>> +               return 1;
>> +
>> +       sprintf(buffer, "mtd=%d", pnum);
>> +       mtd_part.name = buffer;
>> +       mtd_part.size = part->size;
>> +       mtd_part.offset = part->offset;
>> +       add_mtd_partitions(&onenand_mtd, &mtd_part, 1);
>
> I had some problems that boiled down to the fact that the unused
> fields of mtd_part caused problems in add_mtd_partitions(). Doing a
> memset(&mtd_part, 0, sizeif (mtd_part)) before the mtd_part.name line
> solved those problems.
>
Umm it's board specific file but it's reasonable to add the mtd_part
initialization.

Thank you,
Kyungmin Park


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