Commit graph

10 commits

Author SHA1 Message Date
Richard Weinberger
f82290afc8 mtd: ubi: Fix worker handling
Fixes a bug found on thuban boards, which were for 2 years in
a long-term test with varying temperatures. They showed
problems in u-boot when attaching the ubi partition:

U-Boot# run flash_self_test
Booting from nand
set A...
UBI: attaching mtd1 to ubi0
UBI: scanning is finished
data abort
pc : [<87f97c3c>]          lr : [<87f97c28>]
reloc pc : [<8012cc3c>]    lr : [<8012cc28>]
sp : 85f686e8  ip : 00000020     fp : 000001f7
r10: 8605ce40  r9 : 85f68ef8     r8 : 0001f000
r7 : 00000001  r6 : 00000006     r5 : 0001f000  r4 : 85f6ecc0
r3 : 00000000  r2 : 44e35000     r1 : 87fcbcd4  r0 : 87fc755b
Flags: nZCv  IRQs off  FIQs on  Mode SVC_32
Resetting CPU ...

Reason is, that accidentially the U-Boot implementation
from __schedule_ubi_work() did not check the flag
ubi->thread_enabled and started with wearleveling work,
but ubi did not have setup all structures at this point
and crashes.

Solve this problem by splitting work scheduling and processing.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Heiko Schocher <hs@denx.de>
2018-02-19 08:22:58 +01:00
Heiko Schocher
68fc449033 mtd, ubi: set free_count to zero before walking through erase list
Set free_count to zero before walking through ai->erase list
in wl_init().

As U-Boot has no workqueue/threads, it immediately calls
erase_worker(), which increase for each erased block
free_count. Without this patch, free_count gets after
this initialized to zero in wl_init(), so the free_count
variable always has the maybe wrong value 0.

Detected this behaviour on the dxr2 board, where the
UBI fastmap gets not written when attaching/dettaching
on an empty NAND. It drops instead the error message:

could not find any anchor PEB

With this patch, fastmap gets written on dettach.

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2016-04-22 11:47:37 +02:00
Heiko Schocher
0195a7bb36 ubi,ubifs: sync with linux v4.2
sync with linux v4.2

commit 64291f7db5bd8150a74ad2036f1037e6a0428df2
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sun Aug 30 11:34:09 2015 -0700

    Linux 4.2

This update is needed, as it turned out, that fastmap
was in experimental/broken state in kernel v3.15, which
was the last base for U-Boot.

Signed-off-by: Heiko Schocher <hs@denx.de>
Tested-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
2015-10-26 09:22:36 +01:00
Masahiro Yamada
3b61297024 kbuild: force to define __UBOOT__ in all the C sources
U-Boot has imported various source files from other projects,
mostly Linux.

Something like

  #ifdef __UBOOT__
    [ modification for U-Boot ]
  #else
    [ original code ]
  #endif

is an often used strategy for clarification of adjusted parts,
that is, easier re-sync in future.

Instead of defining __UBOOT__ in each source file,
passing it from the top Makefile would be easier.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
2014-09-16 12:23:56 -04:00
Heiko Schocher
4e67c57125 mtd,ubi,ubifs: sync with linux v3.15
snyc with linux v3.15:

commit 1860e379875dfe7271c649058aeddffe5afd9d0d
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sun Jun 8 11:19:54 2014 -0700

    Linux 3.15

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Tom Rini <trini@ti.com>
2014-08-25 19:25:56 -04:00
Heiko Schocher
ff94bc40af mtd, ubi, ubifs: resync with Linux-3.14
resync ubi subsystem with linux:

commit 455c6fdbd219161bd09b1165f11699d6d73de11c
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sun Mar 30 20:40:15 2014 -0700

    Linux 3.14

A nice side effect of this, is we introduce UBI Fastmap support
to U-Boot.

Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Tom Rini <trini@ti.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Sergey Lapin <slapin@ossfans.org>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Joerg Krause <jkrause@posteo.de>
2014-08-25 19:25:55 -04:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Joe Hershberger
76c1637e95 ubi: Fix broken cleanup code in attach_by_scanning
The unwind code was not reversing operations correctly and was causing
a hang on any error condition.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2013-04-11 15:52:54 -04:00
Stefan Roese
1b1f9a9d00 UBI: Ensure that "background thread" operations are really executed
The current U-Boot UBI implementation is copied from Linux. In this
porting the UBI background thread was not handled correctly. Upon write
operations ubi_wl_flush() makes sure, that all queued operations, like
page-erase, are completed. But this is missing for read operations.

This patch now makes sure that such operations (like scrubbing upon
bit-flip errors) are not queued, but executed directly.

Signed-off-by: Stefan Roese <sr@denx.de>
2010-05-19 10:57:19 +02:00
Kyungmin Park
c91a719daa UBI: Add basic UBI support to U-Boot (Part 5/8)
This patch adds basic UBI (Unsorted Block Image) support to U-Boot.
It's based on the Linux UBI version and basically has a "OS"
translation wrapper that defines most Linux specific calls
(spin_lock() etc.) into no-ops. Some source code parts have been
uncommented by "#ifdef UBI_LINUX". This makes it easier to compare
this version with the Linux version and simplifies future UBI
ports/bug-fixes from the Linux version.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Stefan Roese <sr@denx.de>
2008-11-19 20:34:39 +01:00