* fsl elbc driver causes corruption with bus monitor timeouts while simultaneously access on Nor / Nand mtd partitions
@ 2011-04-14 7:06 ` emre kara
0 siblings, 0 replies; 3+ messages in thread
From: emre kara @ 2011-04-14 7:06 UTC (permalink / raw)
To: Scott Wood, Roy Zang
Cc: linuxppc-dev, linux-kernel, David Woodhouse, Lan Chunhe-B25806,
Wood Scott-B07421, Anton Vorontsov, felix, bayraktarz
Hi Scott, Roy.
Scott's "mtd: eLBC NAND: increase bus timeout to maximum" patch is excluded from kernel with Roy's "P4080/eLBC: Make Freescale elbc interrupt common to elbc devices" patch. I don't know the reason for it but this causes bus monitor timeouts and corrupts nand flash while using mainline kernel. As I know there is an errata related to this topic, I think "increasing bus timeout to maximum" is a must.
You can easly generate this situation with below commands:
Note: mtd4 is a Nor and mtd9 is a Nand partition.
[root@P2020RDB root]# mount /dev/mtdblock9 /mnt/src/
mount: you must specify the filesystem type
[root@P2020RDB root]# mount /dev/mtdblock9 /mnt/src/ -t jffs2
��JFFS2 notice: (1950) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
[root@P2020RDB root]# dd if=/dev/mtd4 of=/mnt/src/uboot bs=1
fsl-lbc ffe05000.localbus: Local bus monitor time-out: LTESR 0x80000000
fsl-lbc ffe05000.localbus: command failed: fir 412e0000 fcr 0 status 80000000 mdr c0
Read of newly-erased block at 0x00430000 failed: -74. Putting on bad_list
fsl-lbc ffe05000.localbus: Local bus monitor time-out: LTESR 0x80000000
fsl-lbc ffe05000.localbus: command failed: fir 426db000 fcr 6070d000 status 80000000 mdr ff
Erase at 0x0042c000 failed immediately: errno -5
fsl-lbc ffe05000.localbus: Local bus monitor time-out: LTESR 0x80000000
Cfsl-lbc ffe05000.localbus: command failed: fir 412e0000 fcr 0 status 80000000 mdr c0
Read of newly-erased block at 0x00433000 failed: -74. Putting on bad_list
JFFS2: marking eraseblock at 00433000
Regards.
Emre
^ permalink raw reply [flat|nested] 3+ messages in thread
* fsl elbc driver causes corruption with bus monitor timeouts while simultaneously access on Nor / Nand mtd partitions
@ 2011-04-14 7:06 ` emre kara
0 siblings, 0 replies; 3+ messages in thread
From: emre kara @ 2011-04-14 7:06 UTC (permalink / raw)
To: Scott Wood, Roy Zang
Cc: Wood Scott-B07421, felix, David Woodhouse, linux-kernel,
bayraktarz, Lan Chunhe-B25806, linuxppc-dev
Hi Scott, Roy.
Scott's "mtd: eLBC NAND: increase bus timeout to maximum" patch is excluded=
from kernel with Roy's "P4080/eLBC: Make Freescale elbc interrupt common t=
o elbc devices" patch. I don't know the reason for it but this causes bus m=
onitor timeouts and corrupts nand flash while using mainline kernel. As I k=
now there is an errata related to this topic, I think "increasing bus timeo=
ut to maximum" is a must.
You can easly generate this situation with below commands:
Note: mtd4 is a Nor and mtd9 is a Nand partition.
[root@P2020RDB root]# mount /dev/mtdblock9 /mnt/src/
mount: you must specify the filesystem type
[root@P2020RDB root]# mount /dev/mtdblock9 /mnt/src/ -t jffs2
=EF=BF=BD=EF=BF=BDJFFS2 notice: (1950) jffs2_build_xattr_subsystem: complet=
e building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xr=
ef (0 dead, 0 orphan) found.
[root@P2020RDB root]# dd if=3D/dev/mtd4 of=3D/mnt/src/uboot bs=3D1
fsl-lbc ffe05000.localbus: Local bus monitor time-out: LTESR 0x80000000
fsl-lbc ffe05000.localbus: command failed: fir 412e0000 fcr 0 status 800000=
00 mdr c0
Read of newly-erased block at 0x00430000 failed: -74. Putting on bad_list
fsl-lbc ffe05000.localbus: Local bus monitor time-out: LTESR 0x80000000
fsl-lbc ffe05000.localbus: command failed: fir 426db000 fcr 6070d000 status=
80000000 mdr ff
Erase at 0x0042c000 failed immediately: errno -5
fsl-lbc ffe05000.localbus: Local bus monitor time-out: LTESR 0x80000000
Cfsl-lbc ffe05000.localbus: command failed: fir 412e0000 fcr 0 status 80000=
000 mdr c0
Read of newly-erased block at 0x00433000 failed: -74. Putting on bad_list
JFFS2: marking eraseblock at 00433000
Regards.
Emre
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: fsl elbc driver causes corruption with bus monitor timeouts while simultaneously access on Nor / Nand mtd partitions
2011-04-14 7:06 ` emre kara
(?)
@ 2011-04-14 12:10 ` Felix Radensky
-1 siblings, 0 replies; 3+ messages in thread
From: Felix Radensky @ 2011-04-14 12:10 UTC (permalink / raw)
To: emre kara
Cc: Wood Scott-B07421, David Woodhouse, linux-kernel, bayraktarz,
Lan Chunhe-B25806, linux-mtd, Scott Wood, linuxppc-dev
[-- Attachment #1: Type: text/html, Size: 1101 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2011-04-14 12:09 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-04-14 7:06 fsl elbc driver causes corruption with bus monitor timeouts while simultaneously access on Nor / Nand mtd partitions emre kara
2011-04-14 7:06 ` emre kara
2011-04-14 12:10 ` Felix Radensky
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.