ubiattach error

[Lambrecht Jürgen]

Hello,

When I want to run 'ubiattach' I get this error:

barebox:/dev erase nand0.root1.bb
Skipping bad block at 0x08000000
Skipping bad block at 0x08020000
barebox:/dev ubiattach nand0.root1
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_io_write: error -5 while writing 512 bytes to PEB 0:512, 
written 0 bytes
UBI error: ubi_io_write: error -5 while writing 512 bytes to PEB 1:512, 
written 0 bytes
UBI error: ubi_io_write: error -5 while writing 512 bytes to PEB 2:512, 
written 0 bytes
UBI error: ubi_io_write: error -5 while writing 512 bytes to PEB 3:512, 
written 0 bytes
UBI error: ubi_io_write: error -5 while writing 512 bytes to PEB 4:512, 
written 0 bytes
UBI error: ubi_io_write: error -5 while writing 512 bytes to PEB 5:512, 
written 0 bytes
failed to attach: I/O error
------------------------------------------------------------------
- I use a imx27, and our HW is based on the imx27pdk.
- We use the BI-swap solution to work around the nand flash HW bug (2kB 
pages are load in 512 chunks, mangling the spare area) (so 
drivers/mtd/nand/nand_imx.c is patched).
- I see UBI detects a sub-page size of 512B, what does that mean?
   Because in the UBI menu config "drivers - mtd - NAND - select nand 
pagesize you want to support booting from", I must take '2048 byte page 
size'; with '512 byte and 2048 byte pagesize' selected the board does 
not boot.
- I use LTIB from CVS (not the freescale one), that I have patched 
according to the imx28 BSP from freescale to support UBI

Kind regards,
Jürgen

-- 
Jürgen Lambrecht
R&D Associate
Tel: +32 (0)51 303045    Fax: +32 (0)51 310670
http://www.televic-rail.com
Televic Rail NV - Leo Bekaertlaan 1 - 8870 Izegem - Belgium
Company number 0825.539.581 - RPR Kortrijk