Now that the driver is using ->exec_op(), remove the old
hooks.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
This reworks the driver to make use of ->exec_op() callback. The
command sequencer of the VF610 NFC aligns well with the new ops
interface.
The operations are translated to a NFC command code while filling
the necessary registers. Instead of using the special status and
read ID command codes (which require to read status/ID from
special registers instead of the regular data area) the driver
now now uses the main data buffer for all commands. This
simplifies the driver as no special casing is needed.
For control data (status byte, id bytes and parameter page) the
driver needs to reverse byte order for little endian CPUs since
the controller seems to store the bytes in big endian order in
the data buffer.
The current state seems to pass MTD tests on a Colibri VF61.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
This file can not be built independently any more. We would have to
bring in more to resolve mtd_to_nand(mtd)->ecc.size, for example.
It is difficult to notice a breakage since nobody compiles this mode.
It is not worth fixing or maintaining in my opinion. Remove.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Using pr_<loglevel>() is more concise than printk(KERN_<LOGLEVEL>).
Replace printks having a log level with the appropriate pr_*() macros.
Define pr_fmt() and remove other additional macros from the replaced
printks.
Signed-off-by: Shreeya Patel <shreeya.patel23498@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Move onenand code base to the drivers/mtd/nand directory in the hope
that someday someone will patch it to use the generic NAND helpers.
If it never happens, at least we'll have all NAND related support in a
single directory and not spread over the drivers/mtd/ directory.
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Some files add a comment giving the path of the file inside the Linux
tree, which is pretty useless since the reader had to find the file to
open it.
Getting rid of these comments will also allow us to easily move these
files around when needed.
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
The driver pxa3xx_nand.c has been replaced everywhere by its rework
called marvell_nand.c so this entry can now be removed.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Use the new bindings of the reworked Marvell NAND controller driver.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
The deprecated pxa3xx_nand.c driver does not exist anymore, it has been
replaced by marvell_nand.c which has its own up-to-date documentation.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
The "enable arbiter" bit is available only for pxa3xx based platforms
but it was experimentally shown that even if this bit is reserved,
some Marvell platforms (64-bit) actually need it to be set. The driver
always set this bit regardless of this property, which is harmless.
Then this property is not needed.
The "num_cs" field is always 1 and for a good reason, the old driver
(pxa3xx_nand.c) could only handle one. The new driver that replaces it
(marvell_nand.c) can handle more, but better use device tree for such
description. As there is only one available chip select, there is no
need for an array of partitions neither an array of partition numbers.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
All board files and defconfig files have been moved to use the new
marvell_nand driver instead of pxa3xx_nand, so we can safely remove this
file now. People should use the new driver which is supposed to behave
exactly like the old one.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Compile marvell_nand.c instead of pxa3xx_nand.c with all PXA based SoCs.
Convert all board files and defconfigs so that the new driver is used
everywhere instead of the old one.
Board files using CONFIG_MTD_NAND_PXA3xx now use CONFIG_MTD_NAND_MARVELL
instead.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Remove the deprecated ->cmd_ctrl() implementation to use ->exec_op() in
the fsmc_nand driver.
Implement the ->select_chip() hook to avoid having to support the hack
from the core that send a NAND_CMD_NONE with NAND_NCE to signal a
deassertion of nCE.
Also get rid of the last references to ->IO_ADDR_[R|W] that are not used
anymore.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Remove the use of IO_ADDR_[R|W] in the fsmc_nand driver. Instead, use a
pointer to the control registers to avoid doing several arithmetic
operations (including a multiplication) each time a control register is
read or written.
All references to IO_ADDR_[R|W] are not entirely removed from the driver
as, at this time, these values are needed by the NAND core in the
default ->read/write_byte/word() hooks. These references will be
entirely removed when switching to ->exec_op(), that does not make use
of these hooks anymore.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Add an intermediate layer to abstract NAND device interface so that
some logic can be shared between SPI NANDs, parallel/raw NANDs,
OneNANDs, ...
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
As part of the process of sharing more code between different NAND
based devices, we need to move all raw NAND related code to the raw/
subdirectory.
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Some drivers have been derived from others which have then been removed
from the source tree. When this is the case, add mention the copyright
of the source file(s) they've been derived from.
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
A lot of NAND drivers have been derived from other old NAND drivers
which have since then been removed from the Linux tree. When this is
the case, specify when the file the header is referring to has been
removed so that people can find the original implementation more
easily.
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Last known location of toto.c was drivers/mtd/nand/toto.c. Fix the
path so that one can use git log to find when the driver was deleted
and possibly checkout the source code.
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Some NAND drivers are derived from other NAND drivers and state it in
their license header. Using full path to point to other driver files
sitting in the same directory is not such a good idea, since the NAND
drivers might be moved to a different directory at some point, and we
don't to patch all license/copyright headers everytime this happen.
The only exception where we keep full path is when the referred source
files no longer exist in the tree.
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Some files add a comment giving the path of the file inside the Linux
tree, which is pretty useless since the reader had to find the file to
open it.
Getting rid of these comments will also allow us to easily move these
files around when needed.
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
This patch enables support to read the ECC strength and size from the
NAND flash using Toshiba Memory SLC NAND extended-ID. This patch is
based on the information of the 6th ID byte of the Toshiba Memory SLC
NAND.
Signed-off-by: KOBAYASHI Yoshitake <yoshitake.kobayashi@toshiba.co.jp>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
vf610_nfc_probe() misses error handling of mtd_device_register().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Use clearer error labels as Boris Brezillon suggested.
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Calling of_node_put() in vf610_nfc_probe() is wrong because nothing in
this code retains a reference to the DT node.
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
The function count_written_bits has been replaced by the generic
nand_check_erased_ecc_chunk() function with commit 48c25cf441
("mtd: nand: vf610_nfc: use nand_check_erased_ecc_chunk() helper").
Remove the unused function.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
First generation of Marvell NAND flash controllers (eg. embedded in PXA
boards) did not make use of the NAND core hook ->setup_data_interface()
to setup controller timings. Add support for it.
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Since we now have our own read_page/write_page functions
mxc_nand_command() will no longer be called with NAND_CMD_READ0,
NAND_CMD_READOOB, NAND_CMD_SEQIN and NAND_CMD_PAGEPROG. Remove
the code handling these commands.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Since we have our own read_page/write_page functions correct_data and
calculate are no longer needed. Remove them.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Now that we have our own read_page function add a write_page function
for consistency aswell. This can be a lot easier than the generic
function since we do not have to iterate over subpages but can write
the whole page at once. Also add write_page_raw and write_oob for
proper raw and oob write support.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
The v1 controller code has several flaws:
- We do not forward the number of corrected bitflips to the upper layers
- For 2k page NAND chips only the status results from the fourth subpage
read are evaluated, so ECC failures in the other subpages remain
uncovered
- When there are uncorrectable errors we have to increase the statistics
counter, but still have to return successfully. Currently we return
an error
This patch fixes this by introducing a v1 specific read_page function.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Currently nand_read_page_hwecc() from nand_base calls
mxc_nand_correct_data_v2_v3() for each subpage, but in this function we
return the corrected/failed results for the whole page instead
of a single subpage. On a 2k page size Nand this leads to results which
are 4 times too high.
The whole ecc.calculate/ecc.correct mechanism used by
nand_read_page_hwecc() is not suitable for devices which correct the
data in hardware, so fix this by using a driver specific read_page
function which does the right thing. Also add read_page_raw and read_oob
For proper raw and oob read support.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
With following patches we will have to copy the spare data to/from
other buffers, so add the buffer as argument to copy_spare().
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
For proper raw read/write support need to be able to control the
hardware ECC engine. Add a function to enable/disable it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
We'll call copy_spare() and mxc_do_addr_cycle() from another place
during the next patches, so move functions up to avoid forward
declarations.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
except, again, POLLFREE and POLL_BUSY_LOOP.
With this, we finally get to the promised end result:
- POLL{IN,OUT,...} are plain integers and *not* in __poll_t, so any
stray instances of ->poll() still using those will be caught by
sparse.
- eventpoll.c and select.c warning-free wrt __poll_t
- no more kernel-side definitions of POLL... - userland ones are
visible through the entire kernel (and used pretty much only for
mangle/demangle)
- same behavior as after the first series (i.e. sparc et.al. epoll(2)
working correctly).
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:
for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done
done
with de-mangling cleanups yet to come.
NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do. But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.
The next patch from Al will sort out the final differences, and we
should be all done.
Scripted-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull more poll annotation updates from Al Viro:
"This is preparation to solving the problems you've mentioned in the
original poll series.
After this series, the kernel is ready for running
for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done
done
as a for bulk search-and-replace.
After that, the kernel is ready to apply the patch to unify
{de,}mangle_poll(), and then get rid of kernel-side POLL... uses
entirely, and we should be all done with that stuff.
Basically, that's what you suggested wrt KPOLL..., except that we can
use EPOLL... instead - they already are arch-independent (and equal to
what is currently kernel-side POLL...).
After the preparations (in this series) switch to returning EPOLL...
from ->poll() instances is completely mechanical and kernel-side
POLL... can go away. The last step (killing kernel-side POLL... and
unifying {de,}mangle_poll() has to be done after the
search-and-replace job, since we need userland-side POLL... for
unified {de,}mangle_poll(), thus the cherry-pick at the last step.
After that we will have:
- POLL{IN,OUT,...} *not* in __poll_t, so any stray instances of
->poll() still using those will be caught by sparse.
- eventpoll.c and select.c warning-free wrt __poll_t
- no more kernel-side definitions of POLL... - userland ones are
visible through the entire kernel (and used pretty much only for
mangle/demangle)
- same behavior as after the first series (i.e. sparc et.al. epoll(2)
working correctly)"
* 'work.poll2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
annotate ep_scan_ready_list()
ep_send_events_proc(): return result via esed->res
preparation to switching ->poll() to returning EPOLL...
add EPOLLNVAL, annotate EPOLL... and event_poll->event
use linux/poll.h instead of asm/poll.h
xen: fix poll misannotation
smc: missing poll annotations
nios2: defconfig: Cleanup from old Kconfig options
nios2: dts: Remove leading 0x and 0s from bindings notation
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Merge tag 'nios2-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2
Pull nios2 update from Ley Foon Tan:
- clean up old Kconfig options from defconfig
- remove leading 0x and 0s from bindings notation in dts files
* tag 'nios2-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
nios2: defconfig: Cleanup from old Kconfig options
nios2: dts: Remove leading 0x and 0s from bindings notation
The commit 917538e212 ("kasan: clean up KASAN_SHADOW_SCALE_SHIFT
usage") removed KASAN_SHADOW_SCALE_SHIFT definition from
include/linux/kasan.h and added it to architecture-specific headers,
except for xtensa. This broke the xtensa build with KASAN enabled.
Define KASAN_SHADOW_SCALE_SHIFT in arch/xtensa/include/asm/kasan.h
Reported by: kbuild test robot <fengguang.wu@intel.com>
Fixes: 917538e212 ("kasan: clean up KASAN_SHADOW_SCALE_SHIFT usage")
Acked-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Remove old, dead Kconfig option INET_LRO. It is gone since
commit 7bbf3cae65 ("ipv4: Remove inet_lro library").
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Ley Foon Tan <ley.foon.tan@intel.com>
Improve the DTS files by removing all the leading "0x" and zeros to fix the
following dtc warnings:
Warning (unit_address_format): Node /XXX unit name should not have leading "0x"
and
Warning (unit_address_format): Node /XXX unit name should not have leading 0s
Converted using the following command:
find . -type f \( -iname *.dts -o -iname *.dtsi \) -exec sed -E -i -e "s/@0x([0-9a-fA-F\.]+)\s?\{/@\L\1 \{/g" -e "s/@0+([0-9a-fA-F\.]+)\s?\{/@\L\1 \{/g" {} +
For simplicity, two sed expressions were used to solve each warnings separately.
To make the regex expression more robust a few other issues were resolved,
namely setting unit-address to lower case, and adding a whitespace before the
the opening curly brace:
https://elinux.org/Device_Tree_Linux#Linux_conventions
This is a follow up to commit 4c9847b737 ("dt-bindings: Remove leading 0x from bindings notation")
Reported-by: David Daney <ddaney@caviumnetworks.com>
Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Acked-by: Ley Foon Tan <ley.foon.tan@intel.com>
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Merge tag 'for-linus-20180210' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A few fixes to round off the merge window on the block side:
- a set of bcache fixes by way of Michael Lyle, from the usual bcache
suspects.
- add a simple-to-hook-into function for bpf EIO error injection.
- fix blk-wbt that mischarectized flushes as reads. Improve the logic
so that flushes and writes are accounted as writes, and only reads
as reads. From me.
- fix requeue crash in BFQ, from Paolo"
* tag 'for-linus-20180210' of git://git.kernel.dk/linux-block:
block, bfq: add requeue-request hook
bcache: fix for data collapse after re-attaching an attached device
bcache: return attach error when no cache set exist
bcache: set writeback_rate_update_seconds in range [1, 60] seconds
bcache: fix for allocator and register thread race
bcache: set error_limit correctly
bcache: properly set task state in bch_writeback_thread()
bcache: fix high CPU occupancy during journal
bcache: add journal statistic
block: Add should_fail_bio() for bpf error injection
blk-wbt: account flush requests correctly
Mellanox fixes and new system type support.
The following is an automated git shortlog grouped by driver:
mlx-platform:
- Add support for new 200G IB and Ethernet systems
- Add support for new msn201x system type
- Add support for new msn274x system type
- Fix power cable setting for msn21xx family
- Add define for the negative bus
- Use defines for bus assignment
platform/mellanox:
- mlxreg-hotplug: Fix uninitialized variable
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Merge tag 'platform-drivers-x86-v4.16-3' of git://github.com/dvhart/linux-pdx86
Pull x86 platform driver updates from Darren Hart:
"Mellanox fixes and new system type support.
Mostly data for new system types with a correction and an
uninitialized variable fix"
[ Pulling from github because git.infradead.org currently seems to be
down for some reason, but Darren had a backup location - Linus ]
* tag 'platform-drivers-x86-v4.16-3' of git://github.com/dvhart/linux-pdx86:
platform/x86: mlx-platform: Add support for new 200G IB and Ethernet systems
platform/x86: mlx-platform: Add support for new msn201x system type
platform/x86: mlx-platform: Add support for new msn274x system type
platform/x86: mlx-platform: Fix power cable setting for msn21xx family
platform/x86: mlx-platform: Add define for the negative bus
platform/x86: mlx-platform: Use defines for bus assignment
platform/mellanox: mlxreg-hotplug: Fix uninitialized variable
