[U-Boot] ubi part failing on NAND

[Jeff Angielski]

hedwin wrote:
> Jeff, what is the size of your allocateble memory. Had to increase it to 4MB
> to get it working.

#define CONFIG_SYS_MALLOC_LEN		(1024 * 1024)

I'll try increasing it to see if that helps.

> 
> On Fri, Dec 18, 2009 at 9:16 AM, Stefan Roese <sr at denx.de> wrote:
>> Jeff,
>>
>> On Thursday 17 December 2009 22:09:03 Jeff Angielski wrote:
>>> The "ubi part" command is failing for me on my PowerPC 85xx board.  I am
>>> not trying to do anything special, just create the partitions and
>>> volumes so that I can try writing an ubi.img.  It spits out enough
>>> information that it looks like it did work but it prints out an error
>>> nonetheless.
>>>
>>> And of course there is the long standing issue of the reported MTD
>>> number not making any sense.  But previous posts have discounted this as
>>> an issue.
>> Patches to fix/change this are welcome. :)
>>
>>> Here is the snippet of the error:
>>>
>>> UBI error: ubi_init: cannot attach mtd2
>>> UBI: mtd2 is detached from ubi0
>>> UBI error: ubi_init: UBI error: cannot initialize UBI, error -17
>>> UBI init error -17
>> -17 == EEXIST. Looking at the code (build.c) shows that ubi_attach_mtd_dev()
>> is returning this error code in case the MTD device is already attached. Even
>> though the UBI implementation should handle this without any problems. I have
>> to admit that I'm a bit out of ideas what's going wrong in your case. I just
>> checked again and UBI works fine for me with the latest version:
>>
>>
>> => mtdparts
>>
>> device nand0 <nand>, # parts = 3
>>  #: name                size            offset          mask_flags
>>  0: bootloader          0x00100000      0x00000000      0
>>  1: rootfs              0x01000000      0x00100000      0
>>  2: ubifs               0x02f00000      0x01100000      0
>>
>> active partition: nand0,0 - (bootloader) 0x00100000 @ 0x00000000
>>
>> defaults:
>> mtdids  : nand0=nand
>> mtdparts: mtdparts=nand:1m(bootloader),16m(rootfs),-(ubifs)
>> => nand erase 1100000 2f00000
>>
>> NAND erase: device 0 offset 0x1100000, size 0x2f00000
>> Erasing at 0x3ffc000 -- 100% complete.
>> OK
>> => ubi part ubifs
>> Creating 1 MTD partitions on "nand0":
>> 0x000001100000-0x000004000000 : "mtd=2"
>> UBI: attaching mtd1 to ubi0
>> UBI: physical eraseblock size:   16384 bytes (16 KiB)
>> UBI: logical eraseblock size:    15872 bytes
>> UBI: smallest flash I/O unit:    512
>> UBI: sub-page size:              256
>> UBI: VID header offset:          256 (aligned 256)
>> UBI: data offset:                512
>> UBI: empty MTD device detected
>> UBI: create volume table (copy #1)
>> UBI: create volume table (copy #2)
>> UBI: attached mtd1 to ubi0
>> UBI: MTD device name:            "mtd=2"
>> UBI: MTD device size:            47 MiB
>> UBI: number of good PEBs:        3008
>> UBI: number of bad PEBs:         0
>> UBI: max. allowed volumes:       92
>> UBI: wear-leveling threshold:    4096
>> UBI: number of internal volumes: 1
>> UBI: number of user volumes:     0
>> UBI: available PEBs:             2974
>> UBI: total number of reserved PEBs: 34
>> UBI: number of PEBs reserved for bad PEB handling: 30
>> UBI: max/mean erase counter: 0/0
>> => mtdparts
>>
>> device nand0 <nand>, # parts = 3
>>  #: name                size            offset          mask_flags
>>  0: bootloader          0x00100000      0x00000000      0
>>  1: rootfs              0x01000000      0x00100000      0
>>  2: ubifs               0x02f00000      0x01100000      0
>>
>> active partition: nand0,0 - (bootloader) 0x00100000 @ 0x00000000
>>
>> defaults:
>> mtdids  : nand0=nand
>> mtdparts: mtdparts=nand:1m(bootloader),16m(rootfs),-(ubifs)
>> => nand erase 100000 1000000
>>
>> NAND erase: device 0 offset 0x100000, size 0x1000000
>> Erasing at 0x10fc000 -- 100% complete.
>> OK
>> => ubi part rootfs
>> UBI: mtd1 is detached from ubi0
>> Creating 1 MTD partitions on "nand0":
>> 0x000000100000-0x000001100000 : "mtd=1"
>> UBI: attaching mtd1 to ubi0
>> UBI: physical eraseblock size:   16384 bytes (16 KiB)
>> UBI: logical eraseblock size:    15872 bytes
>> UBI: smallest flash I/O unit:    512
>> UBI: sub-page size:              256
>> UBI: VID header offset:          256 (aligned 256)
>> UBI: data offset:                512
>> UBI: empty MTD device detected
>> UBI: create volume table (copy #1)
>> UBI: create volume table (copy #2)
>> UBI: attached mtd1 to ubi0
>> UBI: MTD device name:            "mtd=1"
>> UBI: MTD device size:            16 MiB
>> UBI: number of good PEBs:        1024
>> UBI: number of bad PEBs:         0
>> UBI: max. allowed volumes:       92
>> UBI: wear-leveling threshold:    4096
>> UBI: number of internal volumes: 1
>> UBI: number of user volumes:     0
>> UBI: available PEBs:             1010
>> UBI: total number of reserved PEBs: 14
>> UBI: number of PEBs reserved for bad PEB handling: 10
>> UBI: max/mean erase counter: 0/0
>> =>
>>
>>
>> Perhaps you should try the latest version as well. Could be that this is a bug
>> already fixed now. Otherwise you need to debug this problem yourself, since I
>> can't reproduce it here.
>>
>> Cheers,
>> Stefan
>>
>> --
>> DENX Software Engineering GmbH,      MD: Wolfgang Denk & Detlev Zundel
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> 


-- 
Jeff Angielski
The PTR Group
www.theptrgroup.com