From: Gary Thomas <gary@mlbassoc.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Strange UBI problems
Date: Tue, 19 Nov 2013 10:05:37 -0700 [thread overview]
Message-ID: <528B9A61.2000103@mlbassoc.com> (raw)
I'm building U-Boot from the FSLC (repo/fork) on an i.MX6
U-Boot 2013.10-00012-g5bc3118-dirty (Nov 19 2013 - 09:17:18)
CPU: Freescale i.MX6SOLO rev1.1 at 792 MHz
After I made a small change today in the NAND FLASH layout, I can
no longer use UBI from U-Boot. Here's what I see today:
MyBoard > mtdparts default
MyBoard > mtdparts
device nand0 <gpmi-nand>, # parts = 4
#: name size offset mask_flags
0: boot 0x001e0000 0x00000000 0
1: env 0x00020000 0x001e0000 0
2: linux 0x00f00000 0x00200000 0
3: fs 0x06f00000 0x01100000 0
active partition: nand0,0 - (boot) 0x001e0000 @ 0x00000000
defaults:
mtdids : nand0=gpmi-nand
mtdparts: mtdparts=gpmi-nand:1920k(boot),128k(env),15m(linux),-(fs)
MyBoard > ubi part linux
UBI: attaching mtd1 to ubi0
UBI: physical eraseblock size: 131072 bytes (128 KiB)
UBI: logical eraseblock size: 126976 bytes
UBI: smallest flash I/O unit: 2048
UBI: VID header offset: 2048 (aligned 2048)
UBI: data offset: 4096
UBI error: ubi_read_volume_table: the layout volume was not found
UBI error: ubi_init: cannot attach mtd1
UBI error: ubi_init: UBI error: cannot initialize UBI, error -22
UBI init error 22
Notice that when I try to access the 'linux' partition, it's trying
to use mtd1 (env). In fact, it doesn't seem to matter at all what
partition I try to access, it always wants to use mtd1.
Today, I changed the MTD layout from
mtdparts=gpmi-nand:896k(boot),128k(env),15m(linux),-(fs)
to
mtdparts=gpmi-nand:1920k(boot),128k(env),15m(linux),-(fs)
I then rebuilt my Linux and reinstalled the partition. Linux is totally
happy with this new layout, but U-Boot doesn't like it at all.
Just to make sure I have this right, I just restored the previous layout
and everything works as expected.
What am I missing? Why is UBI not working with this layout?
Thanks for any help/pointers
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
next reply other threads:[~2013-11-19 17:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-19 17:05 Gary Thomas [this message]
2013-11-20 11:42 ` [U-Boot] Strange UBI problems Gary Thomas
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