From: "Eric Bénard" <eric@eukrea.com>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: UBI support
Date: Fri, 16 Jul 2010 10:57:16 +0200 [thread overview]
Message-ID: <4C401EEC.70109@eukrea.com> (raw)
In-Reply-To: <20100716072702.GJ14113@pengutronix.de>
Hi Sascha, Hi Baruch,
Le 16/07/2010 09:27, Sascha Hauer a écrit :
>> On Mon, Jul 05, 2010 at 03:16:23PM +0200, Sascha Hauer wrote:
>>> The following series prepares and implements UBI for barebox. Here is a log
>>> while playing with UBI:
>>
>> I've tested this on our i.MX25 board. Here's what I get:
>>
>> barebox:/ ubiattach /dev/nand0.rootfs
>> UBI: attaching mtd0 to ubi0
>> UBI: physical eraseblock size: 131072 bytes (128 KiB)
>> UBI: logical eraseblock size: 129024 bytes
>> UBI: smallest flash I/O unit: 2048
>> UBI: sub-page size: 512
>> UBI: VID header offset: 512 (aligned 512)
>> UBI: data offset: 2048
>> UBI: empty MTD device detected
>> UBI: create volume table (copy #1)
>> UBI error: ubi_scan_get_free_peb: no eraseblocks found
>> failed to attach: error 28
>
> I just tested it on an i.MX35 board which should have the same Nand
> Controller as the i.MX25. I have never seen Nand devices with a subpage
> size smaller than the I/O unit size (sub-page size: 512), so I would
> start looking there.
I have exactly the same log under linux here on an i.MX35 & i.MX25,
using 2k Micron Nand :
on i.MX35 :
[ 1.060000] UBI: attaching mtd3 to ubi0
[ 1.070000] UBI: physical eraseblock size: 131072 bytes (128 KiB)
[ 1.070000] UBI: logical eraseblock size: 129024 bytes
[ 1.080000] UBI: smallest flash I/O unit: 2048
[ 1.080000] UBI: sub-page size: 512
[ 1.090000] UBI: VID header offset: 512 (aligned 512)
[ 1.090000] UBI: data offset: 2048
[ 1.420000] UBI: attached mtd3 to ubi0
on i.MX25 :
[ 0.840000] UBI: attaching mtd3 to ubi0
[ 0.840000] UBI: physical eraseblock size: 131072 bytes (128 KiB)
[ 0.850000] UBI: logical eraseblock size: 129024 bytes
[ 0.860000] UBI: smallest flash I/O unit: 2048
[ 0.860000] UBI: sub-page size: 512
[ 0.860000] UBI: VID header offset: 512 (aligned 512)
[ 0.870000] UBI: data offset: 2048
[ 1.460000] UBI: attached mtd3 to ubi0
Eric
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next prev parent reply other threads:[~2010-07-16 8:57 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-05 13:16 UBI support Sascha Hauer
2010-07-05 13:16 ` [PATCH 01/12] crc32: activate crc32_no_comp (needed for jffs2 and UBI) Sascha Hauer
2010-07-05 13:16 ` [PATCH 02/12] move drivers/nand to drivers/mtd/nand Sascha Hauer
2010-07-05 15:22 ` Alessandro Rubini
2010-07-06 6:31 ` Sascha Hauer
2010-07-05 13:16 ` [PATCH 03/12] add rbtree support (needed for ubi) Sascha Hauer
2010-07-05 13:16 ` [PATCH 04/12] add partition mtd support Sascha Hauer
2010-07-05 13:16 ` [PATCH 05/12] cfi_flash: Do not typedef struct flash_info Sascha Hauer
2010-07-05 13:16 ` [PATCH 06/12] cfi_flash: Do not print debug info while erasing Sascha Hauer
2010-07-05 13:16 ` [PATCH 07/12] cfi_flash: Add mtd partition support for UBI Sascha Hauer
2010-07-05 13:16 ` [PATCH 08/12] devfs: only check for ioctl function when needed Sascha Hauer
2010-07-05 13:16 ` [PATCH 09/12] include stuff missing for ubi Sascha Hauer
2010-07-05 13:16 ` [PATCH 10/12] add ubi support from u-boot. Just enough to compile and scan Sascha Hauer
2010-07-05 13:16 ` [PATCH 11/12] barebox ubi changes Sascha Hauer
2010-07-05 13:16 ` [PATCH 12/12] Add UBI commands: ubiattach, ubidetach, ubimkvol, ubirmvol Sascha Hauer
2010-07-08 9:19 ` UBI support Baruch Siach
2010-07-16 7:27 ` Sascha Hauer
2010-07-16 8:57 ` Eric Bénard [this message]
2010-07-16 12:13 ` Esben Haabendal
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