This reverts commit 4fee6c2f29.
It breaks boards that currently rely on soft-ecc, as pointed out here:
http://patchwork.ozlabs.org/patch/140872/
The reverted patch should be resubmitted with documentation, and with the
CONFIG_MTD_ECC_SOFT selected from every board that needs it. We could
start by looking at what NAND driver the board selects, and whether
that driver ever asks for soft ECC.
Signed-off-by: Scott Wood <scottwood@freescale.com>
The software ECC algorithm is not necessary when hardware ECC
is available and can be left out for a smaller image size.
Enable with CONFIG_MTD_ECC_SOFT.
Signed-off-by: Christian Hitz <christian.hitz@aizo.com>
Cc: Scott Wood <scottwood@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
[backport from linux commit 02f8c6aee8df3cdc935e9bdd4f2d020306035dbe]
This patch merges the BCH ECC algorithm from the 3.0 Linux kernel.
This enables U-Boot to support modern NAND flash chips that
require more than 1-bit of ECC in software.
Signed-off-by: Christian Hitz <christian.hitz@aizo.com>
Cc: Scott Wood <scottwood@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
Jz4740 NAND flash controller can support:
* MLC NAND as well as SLC NAND
* all 8-bit/16-bit NAND flash devices
* HAMMING and RS hardware ECC
* automatic boot up from NAND flash devices
nand_ecclayout is set up for 2GiB NAND chip mounted in Qi LB60.
We'll bring up boot-from-NAND support in nand_spl/ in the future.
Signed-off-by: Xiangfu Liu <xiangfu@openmobilefree.net>
Acked-by: Daniel <zpxu@ingenic.cn>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
Add NAND support (including spl) on IFC, such as is found on the p1010.
Note that using hardware ECC on IFC with small-page NAND (which is what
comes on the p1010rdb reference board) means there will be insufficient
OOB space for JFFS2, since IFC does not support 1-bit ECC. UBI should
work, as it does not use OOB for anything but ECC.
When hardware ECC is not enabled in CSOR, software ECC is now used.
Signed-off-by: Dipen Dudhat <Dipen.Dudhat@freescale.com>
[scottwood@freescale.com: ECC rework and misc fixes]
Signed-off-by: Scott Wood <scottwood@freescale.com>
Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils. As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".
This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.
The name of each former library archive is preserved except for
extensions which change from ".a" to ".o". This commit updates
references accordingly where needed, in particular in some linker
scripts.
This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols. Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.
Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
SPEAr SoCs contain an FSMC controller which can be used to interface
with a range of memories eg. NAND, SRAM, NOR.
Currently, this driver supports interfacing FSMC with NAND memories
Signed-off-by: Vipin <vipin.kumar@st.com>
SPEAr SoCs contain an FSMC controller which can be used to interface
with a range of memories eg. NAND, SRAM, NOR.
Currently, this driver supports interfacing FSMC with NAND memories
Signed-off-by: Vipin <vipin.kumar@st.com>
Driver for NFC NAND controller found on Freescale's MX2 and MX3
processors. Ported from Linux. Tested only with i.MX27 but should
works with other MX2 and MX3 processors too.
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Legacy NAND had been scheduled for removal. Any boards that use this
were already not building in the previous release due to an #error.
The disk on chip code in common/cmd_doc.c relies on legacy NAND,
and it has also been removed. There is newer disk on chip code
in drivers/mtd/nand; someone with access to hardware and sufficient
time and motivation can try to get that working, but for now disk
on chip is not supported.
Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch adds a NAND driver for the Marvell Kirkwood SoC's
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
Acked-by: Scott Wood <scottwood@freescale.com>
The S3C2410 NAND driver source file is included in the makefile instead of
the object file.
Signed-off-by: Kevin Morfitt <kevin.morfitt@fearnside-systems.co.uk>
Signed-off-by: Scott Wood <scottwood@freescale.com>
The BF537-STAMP Blackfin board had a driver for working with NAND devices
that are simply memory mapped. Since there is nothing Blackfin specific
about this, generalize the driver a bit so that everyone can leverage it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch adds NAND Flash Controller driver for MPC5121 revision 2.
All device features, except hardware ECC and power management, are
supported.
This NFC driver replaces the one orignally posted by John Rigby:
"[PATCH] Freescale NFC NAND driver"
It's a port of the Linux driver version posted by Piotr Ziecik a few
weeks ago. Using this driver has the following advantages (from my
point of view):
- Compatibility with the Linux NAND driver (e.g. ECC usage)
- Better code quality in general
- Resulting U-Boot image is a bit smaller (approx. 3k)
- Better to sync with newer Linux driver versions
The only disadvantage I can see, is that HW-ECC is not supported right
now. But this could be added later (e.g. port from Linux driver after
it's supported there). Using HW-ECC on the MCP5121 NFC has a general
problem because of the ECC usage in the spare area. This collides with
JFFS2 for example.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Piotr Ziecik <kosmo@semihalf.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: John Rigby <jcrigby@gmail.com>
Cc: Scott Wood <scottwood@freescale.com>
This driver implements the ECC algorithm described in
the CPU data sheet and uses the OOB layout chosen in
already-released development systems (shipped with a custom-made
u-boot 1.3.1).
Signed-off-by: Alessandro Rubini <rubini@unipv.it>
Acked-by: Andrea Gallo <andrea.gallo@stnwireless.com>
This is a driver for the Flash Control Machine of the enhanched Local Bus
Controller found on some Freescale chips (such as the mpc8313 and the
mpc8379).
Signed-off-by: Scott Wood <scottwood@freescale.com>
This commit gets rid of a huge amount of silly white-space issues.
Especially, all sequences of SPACEs followed by TAB characters get
removed (unless they appear in print statements).
Also remove all embedded "vim:" and "vi:" statements which hide
indentation problems.
Signed-off-by: Wolfgang Denk <wd@denx.de>
This change is in preparation for condtitionial compile support in the
build system. By spliting them all into seperate lines now, subsequent
patches that change 'COBJS-y += ' into 'COBJS-$(CONFIG_<blah>) += ' will
be less invasive and easier to review
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
- JFFS2 related commands implemented in mtd-utils style
- Support for bad blocks
- Bad block testing commands
- NAND lock commands
Please take a look at doc/README.nand for more details
Patch by Guido Classen, 10 Oct 2006
Modifications are based on the linux kernel approach and
support two use cases:
1) Add O= to the make command line
'make O=/tmp/build all'
2) Set environement variable BUILD_DIR to point to the desired location
'export BUILD_DIR=/tmp/build'
'make'
The second approach can also be used with a MAKEALL script
'export BUILD_DIR=/tmp/build'
'./MAKEALL'
Command line 'O=' setting overrides BUILD_DIR environent variable.
When none of the above methods is used the local build is performed and
the object files are placed in the source directory.
Scott Wood
Christian Hitz
Marek Vasut
Heiko Schocher
Xiangfu Liu
Simon Schwarz
Dipen Dudhat
Sebastien Carlier
Vipin KUMAR
Ilya Yanok
Matthias Kaehlcke
Stefan Roese
Prafulla Wadaskar
kevin.morfitt@fearnside-systems.co.uk
Mike Frysinger
Jean-Christophe PLAGNIOL-VILLARD
Alessandro Rubini
Dirk Behme
Guennadi Liakhovetski
Wolfgang Denk
Anton Vorontsov
Grant Likely
Wolfgang Denk
Marian Balakowicz
Wolfgang Denk