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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