Some devices may have an extra TRX partition used as failsafe one. If
we detect such partition we should set a proper name for it and don't
parse it.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This change simplifies main parsing loop logic a bit. In future it may
be useful for moving TRX support to separated module / parser (if we
implement support for them at some point).
Finally parsing TRX at the end puts us in a better position as we have
better flash layout knowledge. It may be useful e.g. if it appears there
is more than 1 TRX partition.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
For reading flash content we use MMIO but it's possible to read only
first 16 MiB this way. It's simply an arch design/limitation.
To support flash sizes bigger than 16 MiB implement indirect access
using ChipCommon registers.
This has been tested using MX25L25635F.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
ONFI compliant chips contain the values for the max_bb_per_die and
blocks_per_die fields in the parameter page. When the ONFI paged is
retrieved/parsed the chip's fields are set by the corresponding fields
in the param page.
Signed-off-by: Zach Brown <zach.brown@ni.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electron.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Implement the new mtd function 'max_bad_blocks'. Using the chip's
max_bb_per_die and blocks_per_die fields to determine the maximum bad
blocks to reserve for an MTD.
Signed-off-by: Jeff Westfahl <jeff.westfahl@ni.com>
Signed-off-by: Zach Brown <zach.brown@ni.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electron.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
pci_read_config_word() might fail and not initialize its output,
as pointed out by older versions of gcc when using the -Wmaybe-unintialized
flag:
drivers/mtd/maps/ichxrom.c: In function ‘ichxrom_cleanup’:
drivers/mtd/maps/ichxrom.c:63:2: error: ‘word’ is used uninitialized in this function [-Werror=uninitialized]
This is apparently a correct warning, though it does not show up
with newer compilers. Changing the code to not attempt to write
back uninitialized data into PCI config space is a correct
fix for the problem and avoids the warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
If implemented, 'max_bad_blocks' returns the maximum number of bad
blocks to reserve for a MTD. An implementation for NAND is coming soon.
Signed-off-by: Jeff Westfahl <jeff.westfahl@ni.com>
Signed-off-by: Zach Brown <zach.brown@ni.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electron.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
kernelci.org reports a warning for this driver, as it copies a local
variable into a 'const char *' string:
drivers/mtd/maps/pmcmsp-flash.c:149:30: warning: passing argument 1 of 'strncpy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
Using kstrndup() simplifies the code and avoids the warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
In order to support device tree probing of Gemini NOR flash
chips, a certain register in the syscon needs to be poked
to enable parallel flash mode.
Such things used to happen in "necessarily different" board
file code, and this indeed was also done for the Gemini, so
the MTD driver could treat it as any memory-mapped NOR flash,
but this is not the way in the future: board files need to
go, and hardware concerns distributed down to the applicable
drivers.
This adds a hook in the same way that the Versatile did: if
the Kconfig symbol is not selected the net total of supporting
Gemini should be zero bytes of added code. To live up to this
promise, also the return value error print from the Versatile
extra probe call get to be removed in this patch, all printing
need to happen in the add-ons.
Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This patch updates my email address as I no longer have access to the old
one.
Signed-off-by: John Crispin <john@phrozen.org>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
We have generic place & helpers for storing platform driver data so
there is no reason for using custom priv pointer.
This allows cleaning up struct bcma_sflash from unneeded fields.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
We only need to call sunxi_nfc_wait_cmd_fifo_empty() if we want to send
a new command. Move the sunxi_nfc_wait_cmd_fifo_empty() call to right
place to avoid extra register reads.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Some operations, like read/write an entire page of data with the ECC
engine enabled, are known to take a lot of time. Use the interrupt-based
waiting mode in these situation.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
wait_for_completion_timeout() returns 0 if a timeout occurred, 1
otherwise. Fix the sunxi_nfc_wait_events() accordingly.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The commit 7a65417216 ("mtd/ifc: Add support for IFC controller
version 2.0") added support for version 2.0 of the IFC controller.
The version 2.0 controller has the ECC status registers at a different
location to the previous versions.
Correct the fsl_ifc_nand structure so that the ECC status can be read
from the correct location for both version 1.0 and 2.0 of the controller.
Cc: stable@vger.kernel.org
Fixes: 7a65417216 ("mtd/ifc: Add support for IFC controller version 2.0")
Signed-off-by: Mark Marshall <mark.marshall@omicronenergy.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Instead of keeping two levels of indirection for requests types, fold it
all into the operations. The little caveat here is that previously
cmd_type only applied to struct request, while the request and bio op
fields were set to plain REQ_OP_READ/WRITE even for passthrough
operations.
Instead this patch adds new REQ_OP_* for SCSI passthrough and driver
private requests, althought it has to add two for each so that we
can communicate the data in/out nature of the request.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The oxnas NAND driver is only needed for a specific platform, do
not propose it on other platforms unless build-testing.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: 6685924924 ("mtd: nand: Add OX820 NAND Support")
Cc: Rob Herring <robh@kernel.org>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The FSMC driver has an execution path and a header file in
<linux/mtd/fsmc.h> that serves to support passing in platform
data through board files, albeit no upstream users of this
mechanism exist.
The header file also contains function headers for functions that
do not exist in the kernel.
Delete this and move the platform data struct, parsing and
handling into the driver, assume we are using OF and make the
driver depend on OF, remove the ifdefs making that optional.
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Stefan Roese <sr@denx.de>
Cc: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
devm_ioremap_resource() does a NULL check on the 'rc' argument, so
remove the unneeded manual NULL check.
While at it, place the 'rc' assignment just before
devm_ioremap_resource() to improve readability.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Semantics of NR_IRQS is different on machines with SPARSE_IRQ option
disabled or enabled, in the latter case IRQs are allocated starting
at least from the value specified by NR_IRQS and going upwards, so
the check of (irq >= NR_IRQ) to decide about an error code returned by
platform_get_irq() is completely invalid, don't attempt to overrule
irq subsystem in the driver.
The change fixes LPC32xx NAND MLC driver initialization on boot.
Fixes: 8cb17b5ed0 ("irqchip: Add LPC32xx interrupt controller driver")
Cc: stable@kernel.org # v4.7+
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The x86-64 and some other architectures are missing readsl/writesl
functions, so this driver won't build on them. Use a more portable
ioread32_rep()/iowrite32_rep() instead.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alan Tull <atull@opensource.altera.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Graham Moore <grmoore@opensource.altera.com>
Cc: Vignesh R <vigneshr@ti.com>
Cc: Yves Vandervennet <yvanderv@opensource.altera.com>
Suggested-by: Stefan Roese <sr@denx.de>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Add support for the SPI serial flash host controller found on many Intel
CPUs including Baytrail and Braswell. The SPI serial flash controller is
used to access BIOS and other platform specific information. By default the
driver exposes a single read-only MTD device but with a module parameter
"writeable=1" the MTD device can be made read-write which makes it possible
to upgrade BIOS directly from Linux.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Linux should not expect the boot loader to properly configure the
peripheral bus "pad mode", so reset PBUS_PAD_MODE to raw.
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Visually separate register ranges (address/size pairs) in reg prop.
Change DMA channel name, for consistency with other drivers.
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Fix build errors on arch/um, which does not support HAS_IOMEM,
while the oxnas_nand.c driver uses interfaces that are
supplied by HAS_IOMEM.
(loadable module build:)
ERROR: "devm_ioremap_resource" [drivers/mtd/nand/oxnas_nand.ko] undefined!
or (built-in build:)
drivers/built-in.o: In function `oxnas_nand_probe':
drivers/mtd/nand/oxnas_nand.c:102: undefined reference to `devm_ioremap_resource'
Fixes: 6685924924 ("mtd: nand: Add OX820 NAND Support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Remove the usage of modules functions to make this driver compile
again. Otherwise an include of linux/modules.h would be needed.
Fixes: 024366750c ("mtd: nand: xway: convert to normal platform driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The xway_nand driver accesses the ltq_ebu_membase symbol which is not
exported. This also should not get exported and we should handle the
EBU interface in a better way later. This quick fix just deactivated
support for building as module.
Fixes: 99f2b10792 ("mtd: lantiq: Add NAND support on Lantiq XWAY SoC.")
Cc: <stable@vger.kernel.org>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This was entirely automated, using the script by Al:
PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \
$(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)
to do the replacement at the end of the merge window.
Requested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Core:
* dynamic BDI object allocation (resolves some problems when built as a
module)
* cleanups in the ooblayout handling
NAND:
* new tango NAND controller driver
* new ox820 NAND controller driver
* addition of a new full-ID entry in the nand_ids table
* rework of the s3c240 driver to support DT
* extension of the nand_sdr_timings to expose tCCS, tPROG and tR
* addition of a new flag to ask the core to wait for tCCS when sending
a RNDIN/RNDOUT command
* addition of a new flag to ask the core to let the controller driver
send the READ/PROGPAGE command
Minor fixes/cleanup/cosmetic changes:
* properly support 512 ECC step size in the sunxi driver
* improve the error messages in the PXA probe path
* fix module autoload in the omap2 driver
* cleanup of several nand drivers to return nand_scan{_tail}() error
code instead of returning -EIO
* various cleanups in the denali driver
* fix an error check in nandsim
SPI NOR:
* new flash IDs
* wait for Spansion flash to be ready after quad-enable
* error handling fixes for Candence QSPI
* constify some structures in Freescale QSPI driver
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=H2FS
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20161216' of git://git.infradead.org/linux-mtd
Pull MTD updates from Brian Norris:
"Nothing enormous here, though notably we have some of the first work
of a few new maintainers. I think for now I'll still be sending pull
requests, but that's open to change in the future. Summary:
Core:
- dynamic BDI object allocation (resolves some problems when built as
a module)
- cleanups in the ooblayout handling
NAND:
- new tango NAND controller driver
- new ox820 NAND controller driver
- addition of a new full-ID entry in the nand_ids table
- rework of the s3c240 driver to support DT
- extension of the nand_sdr_timings to expose tCCS, tPROG and tR
- addition of a new flag to ask the core to wait for tCCS when
sending a RNDIN/RNDOUT command
- addition of a new flag to ask the core to let the controller driver
send the READ/PROGPAGE command
Minor fixes/cleanup/cosmetic changes:
- properly support 512 ECC step size in the sunxi driver
- improve the error messages in the PXA probe path
- fix module autoload in the omap2 driver
- cleanup of several nand drivers to return nand_scan{_tail}() error
code instead of returning -EIO
- various cleanups in the denali driver
- fix an error check in nandsim
SPI NOR:
- new flash IDs
- wait for Spansion flash to be ready after quad-enable
- error handling fixes for Candence QSPI
- constify some structures in Freescale QSPI driver"
* tag 'for-linus-20161216' of git://git.infradead.org/linux-mtd: (71 commits)
mtd: Allocate bdi objects dynamically
mtd: nand: tango: Add standard legalese header
mtd: maps: add missing iounmap() in error path
mtd: spi-nor: constify fsl_qspi_devtype_data
mtd: spi-nor: Add support for mr25h40
mtd: spi-nor: Add support for N25Q016A
mtd: spi-nor: Add at25df321 spi-nor flash support
mtd: spi-nor: Fix some error codes in cqspi_setup_flash()
mtd: spi-nor: Off by one in cqspi_setup_flash()
mtd: spi-nor: add support for s25fl208k
mtd: spi-nor: fix flags for s25fl128s
mtd: spi-nor: fix spansion quad enable
mtd: spi-nor: add Macronix mx25u25635f to list of known devices.
mtd: mtdswap: fix spelling mistake "erassure" -> "erasure"
mtd: bcm47xxpart: fix parsing first block after aligned TRX
mtd: nand: tango: Use nand_to_mtd() instead of directly accessing chip->mtd
mtd: remove unneeded initializer in mtd_ooblayout_count_bytes()
mtd: use min_t() to refactor mtd_ooblayout_{get, set}_bytes()
mtd: remove unneeded initializer in mtd_ooblayout_{get, set}_bytes()
mtd: nand: nandsim: fix error check
...
The MTD backing dev info objects mtd_bdi was statically allocated.
So when MTD is built as a loadable module, this object fall in the
vmalloc address space.
The problem with that, is that the BDI APIs use wake_up_bit(), which calls
virt_to_page() to retrieve the memory zone of the page containing the
wait_queue to wake up, and virt_to_page() is not valid for vmalloc or
highmem addresses.
Fix this by allocating the BDI objects dynamically with kmalloc. The
objects now fall in the logical address space so that BDI APIs will
work in all cases (mtd builtin or module).
Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Jim Baxter <jim_baxter@mentor.com>
Signed-off-by: Sandeep Jain <Sandeep_Jain@mentor.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Provide proper copyright notice and license information.
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This patch was triggered by the following Coccinelle error:
./drivers/mtd/maps/sc520cdp.c:246:3-9: \
ERROR: missing iounmap; ioremap on line 242 \
and execution via conditional on line 244
Since do_map_probe() is also invoked in this loop, it is also necessary to
map_destroy() any initialised struct mtd_info.
Signed-off-by: Luis Henriques <henrix@camandro.org>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
- add support to new memory parts.
- fix of spansion_quad_enable().
- fix of the Candence QSPI driver.
- constify some structure instances of the Freescale QSPI driver.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=jyez
-----END PGP SIGNATURE-----
Merge tag 'spi-nor/for-4.10' of git://github.com/spi-nor/linux
From Cyrille Pitchen:
"""
This pull request contains the following notable changes:
- add support to new memory parts.
- fix of spansion_quad_enable().
- fix of the Candence QSPI driver.
- constify some structure instances of the Freescale QSPI driver.
"""
- new tango NAND controller driver
- new ox820 NAND controller driver
- addition of a new full-ID entry in the nand_ids table
- rework of the s3c240 driver to support DT
- extension of the nand_sdr_timings to expose tCCS, tPROG and tR
- addition of a new flag to ask the core to wait for tCCS when sending
a RNDIN/RNDOUT command
- addition of a new flag to ask the core to let the controller driver
send the READ/PROGPAGE command
This pull request also contains minor fixes/cleanup/cosmetic changes:
- properly support 512 ECC step size in the sunxi driver
- improve the error messages in the pxa probe path
- fix module autoload in the omap2 driver
- cleanup of several nand drivers to return nand_scan{_tail}() error
code instead of returning -EIO
- various cleanups in the denali driver
- cleanups in the ooblayout handling (MTD core)
- fix an error check in nandsim
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=og/Y
-----END PGP SIGNATURE-----
Merge tag 'nand/for-4.10' of github.com:linux-nand/linux
From Boris Brezillon:
"""
This pull request contains the following notable changes:
- new tango NAND controller driver
- new ox820 NAND controller driver
- addition of a new full-ID entry in the nand_ids table
- rework of the s3c240 driver to support DT
- extension of the nand_sdr_timings to expose tCCS, tPROG and tR
- addition of a new flag to ask the core to wait for tCCS when sending
a RNDIN/RNDOUT command
- addition of a new flag to ask the core to let the controller driver
send the READ/PROGPAGE command
This pull request also contains minor fixes/cleanup/cosmetic changes:
- properly support 512 ECC step size in the sunxi driver
- improve the error messages in the pxa probe path
- fix module autoload in the omap2 driver
- cleanup of several nand drivers to return nand_scan{_tail}() error
code instead of returning -EIO
- various cleanups in the denali driver
- cleanups in the ooblayout handling (MTD core)
- fix an error check in nandsim
"""
All fsl_qspi_devtype_data structures are never modified.
This patch constify them.
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Acked-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Add Everspin mr25h40 512KB MRAM to the list of supported chips.
Signed-off-by: Masahiko Iwamoto <iwamoto@allied-telesis.co.jp>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
This commit adds support in the spi-nor driver for the
N25Q016A, a 16Mbit SPI NOR flash from Micron.
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Jagan Teki <jteki@openedev.com>
Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Add Atmel at25df321 spi-nor flash to the list of spi_nor_ids.
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
We return success or possibly uninitialized values on these error paths
instead of proper error codes.
Fixes: 1406234105 ("mtd: spi-nor: Add driver for Cadence Quad SPI Flash Controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
There are CQSPI_MAX_CHIPSELECT elements in the ->f_pdata array so the >
should be >=.
Fixes: 1406234105 ('mtd: spi-nor: Add driver for Cadence Quad SPI Flash Controller')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
The Spansion S25FL128S also supports dual read mode.
In addition remove flag SECT_4K. 4K erases are supported,
but not uniformly.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
With the S25FL127S nor flash part, each writing to the configuration
register takes hundreds of ms. During that time, no more accesses to
the flash should be done (even reads).
This commit adds a wait loop after the register writing until the flash
finishes its work.
This issue could make rootfs mounting fail when the latter was done too
much closely to this quad enable bit setting step. And in this case, a
driver as UBIFS may try to recover the filesystem and may broke it
completely.
Signed-off-by: Joël Esponde <joel.esponde@honeywell.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Trivial fix to spelling mistake in dev_err message
Signed-off-by: Colin Ian King <colin.king@canonical.com>
[Brian: add EOL newline]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
After parsing TRX we should skip to the first block placed behind it.
Our code was working only with TRX with length not aligned to the
blocksize. In other cases (length aligned) it was missing the block
places right after TRX.
This fixes calculation and simplifies the comment.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
The nand_to_mtd() helper is here to hide internal mtd_info <-> nand_chip
association and ease future refactors.
Make use of this helper instead of directly accessing chip->mtd.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
There is no need to initialize oobregion since it will be filled by
the iterator.
This function is called with mtd_ooblayout_free or mtd_ooblayout_ecc
for the iterator; both of them calls memset() to clear the oobregion.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
I hope this will make the code a little more readable.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
There is no need to initialize oobregion and section since they will
be filled by mtd_ooblayout_find_region().
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
debugfs_create_dir() and debugfs_create_file() returns NULL on error or
a pointer on success. They do not return the error value with ERR_PTR.
So we should not check the return with IS_ERR_OR_NULL, instead we
should just check for NULL.
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Drop raw_write return value (no longer used).
Drop raw_read return value (for symmetry).
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Enable NAND_ECC_CUSTOM_PAGE_ACCESS in the tango NFC driver.
Fixup the "raw" page accessors to send the proper NAND commands.
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
If your controller already sends the required NAND commands when
reading or writing a page, then the framework is not supposed to
send READ0 and SEQIN/PAGEPROG respectively.
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Such debug lines might be useful when debugging the driver first,
but should be deleted from the upstream code.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Remove parentheses surrounding the whole right side of an assignment.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan_ident/tail() returns an appropriate error value when
it fails. Use it instead of the fixed -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The devm_request_irq() returns an appropriate error value when it
fails. Use it instead of the fixed -ENODEV.
While we are here, reword the comment to make it fit in a single
line, fixing the misspelling of "initialization".
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Use the managed variant instead of request_irq() and free_irq().
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The denali->blksperchip is set, but not referenced any more. The
denali->totalblks is used only for calculating denali->blksperchip.
Both of them are unneeded.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
As far as I understood from the Kconfig menu deleted by commit
be7f39c5ec ("Staging: delete spectra driver"), the "Spectra" is
specific to Intel Moorestown Platform.
The Denali NAND controller IP is used for various SoCs such as
Altera SOCFPGA, Socionext UniPhier, etc. The platform specific
strings are not preferred in this driver.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The denali->fwblks is set by detect_partition_feature(), but it is
not referenced from anywhere. That means the struct member fwblks
and the whole of detect_partition_feature() are unneeded.
The comment block implies this function is only for Intel platforms.
I found drivers/staging/spectra used to exist, but it was deleted by
commit be7f39c5ec ("Staging: delete spectra driver") 5 years ago.
So, I guess nobody would need this function any more.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The interrupt handler is setup in denali_init(), not in
denali_drv_init(). This comment is false.
Such a comment adds no value, so just delete it instead of move.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The struct member "idx" was used as an index for debug_array long
ago, but the DEBUG_DENALI feature was removed by commit 7cfffac06c
("nand/denali: use dev_xx debug function to replace nand_dbg_print
and some printk"). Since then, this has been only initialized, but
never referenced.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The driver calls devm_kzalloc()/devm_kfree() to allocate/free memory.
They are declared in <linux/device.h>, not in <linux/slab.h>.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
BCM53573 is a new series of Broadcom's SoCs. It's based on ARM and uses
this old ChipCommon-based flash access. Early tests resulted in flash
corruptions that were tracked down to using cached MMIO for flash read
access. Switch to ioremap_nocache conditionally to support BCM53573 and
don't break performance on old MIPS devices.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
For this driver, there is nothing between nand_scan_ident() and
nand_scan_tail(). They can be merged into nand_scan().
Also, nand_scan() returns an appropriate error value when it fails.
Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan_ident/tail() never returns a positive value when it
fails.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan_ident() returns an appropriate error value when it
fails. Use it instead of the fixed error code -ENODEV.
(This driver is already doing so for nand_scan_tail().)
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan_ident() returns an appropriate error value when it
fails. Use it instead of the fixed error code -ENODEV.
(This driver is already doing so for nand_scan_tail().)
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan_ident() returns an appropriate error value when it
fails. Use it instead of the fixed error code -ENXIO.
(This driver is already doing so for nand_scan_tail().)
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan_ident/tail() returns an appropriate error value when
it fails. Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan_ident/tail() returns an appropriate error value when
it fails. Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan_ident/tail() returns an appropriate error value when
it fails. Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan_ident/tail() returns an appropriate error value when
it fails. Use it instead of the fixed error code -ENODEV.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan_ident/tail() returns an appropriate error value when
it fails. Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan_ident/tail() returns an appropriate error value when
it fails. Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan_ident/tail() returns an appropriate error value when
it fails. Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan_ident/tail() returns an appropriate error value when
it fails. Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan() returns an appropriate error value when it fails.
Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan() returns an appropriate error value when it fails.
Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan() returns an appropriate error value when it fails.
Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan() returns an appropriate error value when it fails.
Use it instead of the fixed error code -ENODEV.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan() returns an appropriate error value when it fails.
Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan() returns an appropriate error value when it fails.
Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan() returns an appropriate error value when it fails.
Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan() returns an appropriate error value when it fails.
Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The nand_scan() returns an appropriate error value when it fails.
Use it instead of the fixed error code -ENXIO.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Since commit d1e1f4e42b ("mtd: nand: add support for reading ONFI
parameters from NAND device"), the returned "type" is never used in
nand_scan_ident().
Make nand_get_flash_type() simply return an integer value in order
to avoid unnecessary ERR_PTR/PTR_ERR dance.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The denali_dt_probe() calls clk_disable_unprepare() in the bailout
path, whereas denali_dt_remove calls clk_disable(), inconsistently.
Replace the latter with clk_disable_unprepare() to make sure to
unprepare the clock.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This driver supports the NAND Flash controller embedded in recent
Tango chips, such as SMP8758 and SMP8759.
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
For some error paths alloc_nand_resource() emitted an error message, for
others it didn't. Make it consistently print a message including the
error code where it's not constant and drop the hardly helpful
additional message printed by the caller of alloc_nand_resource.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Drivers implementing ->cmd_ctrl() and relying on the default ->cmdfunc()
implementation usually don't wait tCCS when a column change (RNDIN or
RNDOUT) is requested.
Add an option flag to ask the core to do so (note that we keep this as
an opt-in to avoid breaking existing implementations), and make use of
the ->data_interface information is available (otherwise, wait 500ns).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Add the tR_max, tBERS_max, tPROG_max and tCCS_min timings to the
nand_sdr_timings struct.
Assign default/safe values for the statically defined timings, and
extract them from the ONFI parameter table if the NAND is ONFI
compliant.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Removing CONFIG_MTD_NAND_S3C2410_HWECC option and adding a ecc_mode
field in the drivers's platform data structure so it can be selectable
via platform data.
Also setting this field to NAND_ECC_SOFT in all boards using this
driver since none of them had CONFIG_MTD_NAND_S3C2410_HWECC enabled.
Signed-off-by: Sergio Prado <sergio.prado@e-labworks.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
* MAINTAINERS updates to reflect some new maintainers/submaintainers -- we
have some great volunteers who've been developing and reviewing already.
We're going to try a group maintainership model, so eventually you'll
probably see pull requests from people besides me.
* NAND fixes from Boris:
"""
Three simple fixes:
- the first one is fixing a non-critical bug in the gpmi driver
- the second one is fixing a bug in the 'automatic NAND timings
selection' feature introduced in 4.9-rc1
- the last one is fixing a false positive uninitialized-var warning
"""
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=7VFh
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20161104' of git://git.infradead.org/linux-mtd
Pull MTD fixes from Brian Norris:
- MAINTAINERS updates to reflect some new maintainers/submaintainers.
We have some great volunteers who've been developing and reviewing
already. We're going to try a group maintainership model, so
eventually you'll probably see pull requests from people besides me.
- NAND fixes from Boris:
"Three simple fixes:
- fix a non-critical bug in the gpmi driver
- fix a bug in the 'automatic NAND timings selection' feature
introduced in 4.9-rc1
- fix a false positive uninitialized-var warning"
* tag 'for-linus-20161104' of git://git.infradead.org/linux-mtd:
mtd: mtk: avoid warning in mtk_ecc_encode
mtd: nand: Fix data interface configuration logic
mtd: nand: gpmi: disable the clocks on errors
MAINTAINERS: add more people to the MTD maintainer team
MAINTAINERS: add a maintainer for the SPI NOR subsystem
Commit e96a8a3bb6 ("UBI: Fastmap: Do not add vol if it already
exists") introduced a bug by changing the possible error codes returned
by add_vol():
- this function no longer returns NULL in case of allocation failure
but return ERR_PTR(-ENOMEM)
- when a duplicate entry in the volume RB tree is found it returns
ERR_PTR(-EEXIST) instead of ERR_PTR(-EINVAL)
Fix the tests done on add_vol() return val to match this new behavior.
Fixes: e96a8a3bb6 ("UBI: Fastmap: Do not add vol if it already exists")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
When building with -Wmaybe-uninitialized, gcc produces a silly false positive
warning for the mtk_ecc_encode function:
drivers/mtd/nand/mtk_ecc.c: In function 'mtk_ecc_encode':
drivers/mtd/nand/mtk_ecc.c:402:15: error: 'val' may be used uninitialized in this function [-Werror=maybe-uninitialized]
The function for some reason contains a double byte swap on big-endian
builds to get the OOB data into the correct order again, and is written
in a slightly confusing way.
Using a simple memcpy32_fromio() to read the data simplifies it a lot
so it becomes more readable and produces no warning. However, the
output might not have 32-bit alignment, so we have to use another
memcpy to avoid taking alignment faults or writing beyond the end
of the array.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: RogerCC Lin <rogercc.lin@mediatek.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
When changing from one data interface setting to another, one has to
ensure a specific sequence which is described in the ONFI spec.
One of these constraints is that the CE line has go high after a reset
before a command can be sent with the new data interface setting, which
is not guaranteed by the current implementation.
Rework the nand_reset() function and all the call sites to make sure the
CE line is asserted and released when required.
Also make sure to actually apply the new data interface setting on the
first die.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Fixes: d8e725dd83 ("mtd: nand: automate NAND timings selection")
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
We should disable the previously enabled GPMI clocks in the error paths.
Also, when gpmi_enable_clk() fails simply return the error
code immediately rather than jumping to to the 'err_out' label.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Acked-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Add NAND driver to support the Oxford Semiconductor OX820 NAND Controller.
This is a simple memory mapped NAND controller with single chip select and
software ECC.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Add the description of the Toshiba TC58NVG2S0H SLC nand to the nand_ids
table so we can use the NAND ECC infos and the ONFI timings.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
The driver is incorrectly assuming that the ECC block size is always 1k
which is not always true.
Also take the other cases into account.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
drivers/mtd/ubi/eba.c: In function ‘try_recover_peb’:
drivers/mtd/ubi/eba.c:744: warning: ‘vid_hdr’ is used uninitialized in this function
The pointer vid_hdr is indeed not initialized, leading to a crash when
it is dereferenced.
Fix this by obtaining the pointer from the VID buffer, like is done
everywhere else.
Fixes: 3291b52f9f ("UBI: introduce the VID buffer concept")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Static analysis by CoverityScan detected the ec and pnum
arguments are in the wrong order on a call to ubi_alloc_aeb.
Swap the order to fix this.
Fixes: 91f4285fe3 ("UBI: provide helpers to allocate and free aeb elements")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.
Export the module alias information using the MODULE_DEVICE_TABLE() macro.
Before this patch:
$ modinfo drivers/mtd/nand/omap2_nand.ko | grep alias
alias: platform:omap2-nand
After this patch:
$ modinfo drivers/mtd/nand/omap2_nand.ko | grep alias
alias: platform:omap2-nand
alias: of:N*T*Cti,omap2-nandC*
alias: of:N*T*Cti,omap2-nand
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Merge more updates from Andrew Morton:
- a few block updates that fell in my lap
- lib/ updates
- checkpatch
- autofs
- ipc
- a ton of misc other things
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (100 commits)
mm: split gfp_mask and mapping flags into separate fields
fs: use mapping_set_error instead of opencoded set_bit
treewide: remove redundant #include <linux/kconfig.h>
hung_task: allow hung_task_panic when hung_task_warnings is 0
kthread: add kerneldoc for kthread_create()
kthread: better support freezable kthread workers
kthread: allow to modify delayed kthread work
kthread: allow to cancel kthread work
kthread: initial support for delayed kthread work
kthread: detect when a kthread work is used by more workers
kthread: add kthread_destroy_worker()
kthread: add kthread_create_worker*()
kthread: allow to call __kthread_create_on_node() with va_list args
kthread/smpboot: do not park in kthread_create_on_cpu()
kthread: kthread worker API cleanup
kthread: rename probe_kthread_data() to kthread_probe_data()
scripts/tags.sh: enable code completion in VIM
mm: kmemleak: avoid using __va() on addresses that don't have a lowmem mapping
kdump, vmcoreinfo: report memory sections virtual addresses
ipc/sem.c: add cond_resched in exit_sme
...
Kernel source files need not include <linux/kconfig.h> explicitly
because the top Makefile forces to include it with:
-include $(srctree)/include/linux/kconfig.h
This commit removes explicit includes except the following:
* arch/s390/include/asm/facilities_src.h
* tools/testing/radix-tree/linux/kernel.h
These two are used for host programs.
Link: http://lkml.kernel.org/r/1473656164-11929-1-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Fixes for both UBI and UBIFS
* overlayfs support (O_TMPFILE, RENAME_WHITEOUT/EXCHANGE)
* Code refactoring for the upcoming MLC support
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=UB7l
-----END PGP SIGNATURE-----
Merge tag 'upstream-4.9-rc1' of git://git.infradead.org/linux-ubifs
Pull UBI/UBIFS updates from Richard Weinberger:
"This pull request contains:
- Fixes for both UBI and UBIFS
- overlayfs support (O_TMPFILE, RENAME_WHITEOUT/EXCHANGE)
- Code refactoring for the upcoming MLC support"
[ Ugh, we just got rid of the "rename2()" naming for the extended rename
functionality. And this re-introduces it in ubifs with the cross-
renaming and whiteout support.
But rather than do any re-organizations in the merge itself, the
naming can be cleaned up later ]
* tag 'upstream-4.9-rc1' of git://git.infradead.org/linux-ubifs: (27 commits)
UBIFS: improve function-level documentation
ubifs: fix host xattr_len when changing xattr
ubifs: Use move variable in ubifs_rename()
ubifs: Implement RENAME_EXCHANGE
ubifs: Implement RENAME_WHITEOUT
ubifs: Implement O_TMPFILE
ubi: Fix Fastmap's update_vol()
ubi: Fix races around ubi_refill_pools()
ubi: Deal with interrupted erasures in WL
UBI: introduce the VID buffer concept
UBI: hide EBA internals
UBI: provide an helper to query LEB information
UBI: provide an helper to check whether a LEB is mapped or not
UBI: add an helper to check lnum validity
UBI: simplify LEB write and atomic LEB change code
UBI: simplify recover_peb() code
UBI: move the global ech and vidh variables into struct ubi_attach_info
UBI: provide helpers to allocate and free aeb elements
UBI: fastmap: use ubi_io_{read, write}_data() instead of ubi_io_{read, write}()
UBI: fastmap: use ubi_rb_for_each_entry() in unmap_peb()
...
NAND:
* Add the infrastructure to automate NAND timings configuration
* Provide a generic DT property to maximize ECC strength
* Some refactoring in the core bad block table handling, to help with
improving some of the logic in error cases.
* Minor cleanups and fixes
MTD:
* Add APIs for handling page pairing; this is necessary for reliably
supporting MLC and TLC NAND flash, where paired-page disturbance affects
reliability. Upper layers (e.g., UBI) should make use of these in the near
future.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=/PuY
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20161008' of git://git.infradead.org/linux-mtd
Pull MTD updates from Brian Norris:
"I've not been very active this cycle, so these are mostly from Boris,
for the NAND flash subsystem.
NAND:
- Add the infrastructure to automate NAND timings configuration
- Provide a generic DT property to maximize ECC strength
- Some refactoring in the core bad block table handling, to help with
improving some of the logic in error cases.
- Minor cleanups and fixes
MTD:
- Add APIs for handling page pairing; this is necessary for reliably
supporting MLC and TLC NAND flash, where paired-page disturbance
affects reliability. Upper layers (e.g., UBI) should make use of
these in the near future"
* tag 'for-linus-20161008' of git://git.infradead.org/linux-mtd: (35 commits)
mtd: nand: fix trivial spelling error
mtdpart: Propagate _get/put_device()
mtd: nand: Provide nand_cleanup() function to free NAND related resources
mtd: Kill the OF_MTD Kconfig option
mtd: nand: mxc: Test CONFIG_OF instead of CONFIG_OF_MTD
mtd: nand: Fix nand_command_lp() for 8bits opcodes
mtd: nand: sunxi: Support ECC maximization
mtd: nand: Support maximizing ECC when using software BCH
mtd: nand: Add an option to maximize the ECC strength
mtd: nand: mxc: Add timing setup for v2 controllers
mtd: nand: mxc: implement onfi get/set features
mtd: nand: sunxi: switch from manual to automated timing config
mtd: nand: automate NAND timings selection
mtd: nand: Expose data interface for ONFI mode 0
mtd: nand: Add function to convert ONFI mode to data_interface
mtd: nand: convert ONFI mode into data interface
mtd: nand: Introduce nand_data_interface
mtd: nand: Create a NAND reset function
mtd: nand: remove unnecessary 'extern' from function declarations
MAINTAINERS: Add maintainer entry for Ingenic JZ4780 NAND driver
...
Pull blk-mq irq/cpu mapping updates from Jens Axboe:
"This is the block-irq topic branch for 4.9-rc. It's mostly from
Christoph, and it allows drivers to specify their own mappings, and
more importantly, to share the blk-mq mappings with the IRQ affinity
mappings. It's a good step towards making this work better out of the
box"
* 'for-4.9/block-irq' of git://git.kernel.dk/linux-block:
blk_mq: linux/blk-mq.h does not include all the headers it depends on
blk-mq: kill unused blk_mq_create_mq_map()
blk-mq: get rid of the cpumask in struct blk_mq_tags
nvme: remove the post_scan callout
nvme: switch to use pci_alloc_irq_vectors
blk-mq: provide a default queue mapping for PCI device
blk-mq: allow the driver to pass in a queue mapping
blk-mq: remove ->map_queue
blk-mq: only allocate a single mq_map per tag_set
blk-mq: don't redistribute hardware queues on a CPU hotplug event
The cleanups for v4.9 are a little larger that usual, but thankfully
that is almost exclusively due to removing a significant number of
files that have become obsolete after the still ongoing conversion
of old board files to devicetree.
- for mach-omap2, which is still the largest platform in arch/arm/,
the conversion to DT is finally complete after the Nokia N900 is
now fully supported there, along with the omap3 LDP, and we can
remove those two board files.
If no regressions are found, another large cleanup for the platform
will happen as a follow-up, removing dead code and restructuring
the platform based on being DT-only.
- In mach-imx, similar work is ongoing, but has not come that far.
This time, we remove the obsolete board file for the i.MX1
generation, which like i.MX25, i.MX5, i.MX6, and i.MX7 is now DT-only.
The remaining board files are for i.MX2 and i.MX3 machines
based on old ARM926 or ARM1136 cores that should work with DT
in principle.
- realview has just been converted from board files to DT, and a lot
of code gets removed in the process. This is the last
ARM/Keil/Versatile derived platform that was still using board
files, the other ones being integrator, versatile and vexpress.
We can probably merge the remaining code into a single directory
in the near future.
- clps711x had completed the conversion in v4.8, but we accidentally
left the files in place that should have been deleted then.
Conflicts: two files deleted here have been modified upstream,
the changes can be discarded.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQIVAwUAV/guBGCrR//JCVInAQJoaQ/+N42zjmqDg6zO2JSs3q793AHskllT7kJo
2G36Afl3hOZqy2TFF8nq5Iv8/hb45+3bHBIlq+JrOq5Fep3wFVfT0d1HMQ8UG6+K
jSMikItIZkOJdmjuZLEBzhjUFIEIpIrSuSY1Pej5Sy8zDzxT+n68gVqcm/qxa2w6
gPThdL69/XDo7JkF9TbYn0nrECey3ps9XnikNITWyQTrvCmlDVtGp6B+Cwi4cyvh
FfJ690GAJU3/9op+xLomtEt1sli/+xJUdpH0IktfuNrc/2i96NsiUgPbqprIP6C6
rGRN40tDClYa1viRexZlZdkCd7nH9PC+VCC59FONYiY8WmpwtNPVZ8px4D/rv7AX
GHDnqeVbzUK/CMxRsQC0bnvQnD/oDqkSkDD7ixzfUh2TQiJASXvuj1vOej5k06Vc
KFkpjh1dSZkehkUp106F2Obm8Sh7nNoG2olzrlzlza97OuYxAEBungIn95vjYbUj
IRrTQdKgv3gVVGXzHjH7TMr46MZLk6K4mHjDeuQr/NN8JyPH0uLTy6pjsdXRWCvO
sIWVhyMohKMU2q5NeBWmY0OtDje93JchRVeKfRaQ3+YysPMUTBK5ZtI5GB9tsM14
7/GA7MO4FA0MZWW2E/GllQzgreaokUzTxBbhANzcEyjGh9OEx4gYaSF68PRy/HBa
TlhH1PR3PNg=
=WaLy
-----END PGP SIGNATURE-----
Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Arnd Bergmann:
"The cleanups for v4.9 are a little larger that usual, but thankfully
that is almost exclusively due to removing a significant number of
files that have become obsolete after the still ongoing conversion of
old board files to devicetree.
- for mach-omap2, which is still the largest platform in arch/arm/,
the conversion to DT is finally complete after the Nokia N900 is
now fully supported there, along with the omap3 LDP, and we can
remove those two board files. If no regressions are found, another
large cleanup for the platform will happen as a follow-up, removing
dead code and restructuring the platform based on being DT-only.
- In mach-imx, similar work is ongoing, but has not come that far.
This time, we remove the obsolete board file for the i.MX1
generation, which like i.MX25, i.MX5, i.MX6, and i.MX7 is now
DT-only. The remaining board files are for i.MX2 and i.MX3 machines
based on old ARM926 or ARM1136 cores that should work with DT in
principle.
- realview has just been converted from board files to DT, and a lot
of code gets removed in the process. This is the last
ARM/Keil/Versatile derived platform that was still using board
files, the other ones being integrator, versatile and vexpress. We
can probably merge the remaining code into a single directory in
the near future.
- clps711x had completed the conversion in v4.8, but we accidentally
left the files in place that should have been deleted then"
* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (21 commits)
ARM: select PCI_DOMAINS config from ARCH_MULTIPLATFORM
ARM: stop *MIGHT_HAVE_PCI* config from being selected redundantly
ARM: imx: (trivial) fix typo and grammar
ARM: clps711x: remove extraneous files
ARM: imx: use IS_ENABLED() instead of checking for built-in or module
ARM: OMAP2+: use IS_ENABLED() instead of checking for built-in or module
ARM: OMAP1: use IS_ENABLED() instead of checking for built-in or module
ARM: imx: remove platform-mxc_rnga
ARM: realview: imply device tree boot
ARM: realview: no need to select SMP_ON_UP explicitly
ARM: realview: delete the RealView board files
ARM: imx: no need to select SMP_ON_UP explicitly
ARM: i.MX: Move SOC_IMX1 into 'Device tree only'
ARM: i.MX: Remove i.MX1 non-DT support
ARM: i.MX: Remove i.MX1 Synertronixx SCB9328 board support
ARM: i.MX: Remove i.MX1 Armadeus APF9328 board support
ARM: mxs: remove obsolete startup code for TX28
ARM: i.MX31 iomux: remove duplicates with alternate name
ARM: i.MX31 iomux: remove plain duplicates
ARM: OMAP2+: Drop legacy board file for LDP
...
Introduced by commit fde85cfd2d ("mtd: nand: Fix nand_command_lp() for
8bits opcodes") and I didn't have the heart to have Boris rewrite his
pull request just for that. Anyway, there's some value in having stable
commit hashes.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
- add the infrastructure to automate NAND timings configuration
- provide a generic DT property to maximize ECC strength
The rest is just a bunch of minor drivers and core fixes/cleanup
patches.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=mscR
-----END PGP SIGNATURE-----
Merge tag 'for-4.9' of github.com:linux-nand/linux
"
Notable core changes:
- add the infrastructure to automate NAND timings configuration
- provide a generic DT property to maximize ECC strength
The rest is just a bunch of minor drivers and core fixes/cleanup
patches.
"
Also not noted: some refactoring in the core bad block table handling,
to help with improving some of the logic in error cases.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Usually Fastmap is free to consider every PEB in one of the pools
as newer than the existing PEB. Since PEBs in a pool are by definition
newer than everything else.
But update_vol() missed the case that a pool can contain more than
one candidate.
Cc: <stable@vger.kernel.org>
Fixes: dbb7d2a88d ("UBI: Add fastmap core")
Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
When writing a new Fastmap the first thing that happens
is refilling the pools in memory.
At this stage it is possible that new PEBs from the new pools
get already claimed and written with data.
If this happens before the new Fastmap data structure hits the
flash and we face power cut the freshly written PEB will not
scanned and unnoticed.
Solve the issue by locking the pools until Fastmap is written.
Cc: <stable@vger.kernel.org>
Fixes: dbb7d2a88d ("UBI: Add fastmap core")
Signed-off-by: Richard Weinberger <richard@nod.at>
When Fastmap is used we can face here an -EBADMSG
since Fastmap cannot know about unmaps.
If the erasure was interrupted the PEB may show ECC
errors and UBI would go to ro-mode as it assumes
that the PEB was check during attach time, which is
not the case with Fastmap.
Cc: <stable@vger.kernel.org>
Fixes: dbb7d2a88d ("UBI: Add fastmap core")
Signed-off-by: Richard Weinberger <richard@nod.at>
Currently, all VID headers are allocated and freed using the
ubi_zalloc_vid_hdr() and ubi_free_vid_hdr() function. These functions
make sure to align allocation on ubi->vid_hdr_alsize and adjust the
vid_hdr pointer to match the ubi->vid_hdr_shift requirements.
This works fine, but is a bit convoluted.
Moreover, the future introduction of LEB consolidation (needed to support
MLC/TLC NANDs) will allows a VID buffer to contain more than one VID
header.
Hence the creation of a ubi_vid_io_buf struct to attach extra information
to the VID header.
We currently only store the actual pointer of the underlying buffer, but
will soon add the number of VID headers contained in the buffer.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Create a private ubi_eba_table struct to hide EBA internals and provide
helpers to allocate, destroy, copy and assing an EBA table to a volume.
Now that external EBA users are using helpers to query/modify the EBA
state we can safely change the internal representation, which will be
needed to support the LEB consolidation concept.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This is part of our attempt to hide EBA internals from other part of the
implementation in order to easily adapt it to the MLC needs.
Here we are creating an ubi_eba_leb_desc struct to hide the way we keep
track of the LEB to PEB mapping.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This is part of the process of hiding UBI EBA's internal to other part of
the UBI implementation, so that we can add new information to the EBA
table without having to patch different places in the UBI code.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
ubi_leb_valid() is here to replace the
lnum < 0 || lnum >= vol->reserved_pebs checks.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
ubi_eba_write_leb(), ubi_eba_write_leb_st() and
ubi_eba_atomic_leb_change() are using a convoluted retry/exit path.
Add the try_write_vid_and_data() function to simplify the retry logic
and make sure we have a single exit path instead of manually releasing
the resources in each error path.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
recover_peb() is using a convoluted retry/exit path. Add try_recover_peb()
to simplify the retry logic and make sure we have a single exit path
instead of manually releasing the resource in each error path.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Even if it works fine with those global variables, attaching the
temporary ech and vidh objects used during UBI scan to the
ubi_attach_info object sounds like a more future-proof option.
For example, attaching several UBI devices in parallel is prevented by
this use of global variable. And also because global variables should
be avoided in general.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This not only hides the aeb allocation internals (which is always good in
case we ever want to change the allocation system), but also helps us
factorize the initialization of some common fields (ec and pnum).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
ubi_io_{read,write}_data() are wrappers around ubi_io_{read/write}() that
are used to read/write eraseblock payload data, which is exactly what
fastmap does when calling ubi_io_{read,write}().
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Use the ubi_rb_for_each_entry() macro instead of open-coding it.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Those functions are pretty much doing the same thing, except
ubi_remove_av() is putting the aeb elements attached to the volume into
the ai->erase list and the destroy_av() is freeing them.
Rework destroy_av() to handle both cases.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Volume creation/search code is duplicated in a few places (fastmap and
non fastmap code). Create some helpers to factorize the code.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
vol->usable_size is already set to ubi->leb_size - vol->data_pad. Use
vol->usable_size instead of recalculating it.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
scan_pool() does not mark the PEB for scrubing when bitflips are
detected in the EC header of a free PEB (VID header region left to
0xff).
Make sure we scrub the PEB in this case.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Fixes: dbb7d2a88d ("UBI: Add fastmap core")
Signed-off-by: Richard Weinberger <richard@nod.at>
process_pool_aeb() does several times the be32_to_cpu(new_vh->vol_id)
operation. Create a temporary variable and do it once.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
add_fastmap() is passed a ubi_vid_hdr pointer in argument, but is
referencing the global vidh pointer.
Even if this is correct from a functional point of view (vidh and vid_hdr
point to the same object), it is confusing.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
process_pool_aeb() re-implements the logic found in ubi_find_volume().
Call ubi_find_volume() to avoid this duplication.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
If the master device has callbacks for _get/put_device()
and this MTD has slaves a get_mtd_device() call on paritions
will never issue the registered callbacks.
Fix this by propagating _get/put_device() down.
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Davinci NAND: fix a long-standing bug in how we clear/prep 4-bit ECC
OMAP NAND: an error-handling fix that made it into v4.8-rc1 caused
error-handling cases in other configurations/code-paths; this fixes the fix
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=coFg
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20160928' of git://git.infradead.org/linux-mtd
Pull late MTD fixes from Brian Norris:
"Another round of MTD fixes for v4.8
My apologies for sending this so late. I've been fairly absent as a
maintainer this cycle, but I did queue these up weeks ago. In the
meantime, Richard was able to handle some other fixes (thanks!) but
didn't pick these up.
On the bright side, these are very simple changes that should carry
little risk.
Summary:
- Davinci NAND: fix a long-standing bug in how we clear/prep 4-bit ECC
- OMAP NAND: an error-handling fix that made it into v4.8-rc1 caused
error-handling cases in other configurations/code-paths; this fixes
the fix"
* tag 'for-linus-20160928' of git://git.infradead.org/linux-mtd:
mtd: nand: davinci: Reinitialize the HW ECC engine in 4bit hwctl
mtd: nand: omap2: Don't call dma_release_channel() if dma_request_chan() failed
Provide a nand_cleanup() function to free all nand related resources
without unregistering the mtd device.
This should allow drivers to call mtd_device_unregister() and handle
its return value and still being able to cleanup all nand related
resources.
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Daniel Walter <dwalter@sigma-star.at>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
We are about to drop the OF_MTD Kconfig option. Test CONFIG_OF
activation instead of CONFIG_OF_MTD.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 bits opcodes should be followed by a single address cycle. Make the
2nd address cycle dependent of !nand_opcode_8bits(command).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Add support for ECC maximization when software BCH with
nand_ooblayout_lp_ops layout is used.
Other cases should be handled by the NAND controller driver.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The generic NAND DT bindings allows one to tweak the ECC strength and
step size to their need. It can be used to lower the ECC strength to
match a bootloader/firmware config, but might also be used to get a better
reliability.
In the latter case, the user might want to use the maximum ECC strength
without having to explicitly calculate the exact value (this value not
only depends on the OOB size, but also on the NAND controller, and can
be tricky to extract).
Add a generic 'nand-ecc-maximize' DT property and the associated
NAND_ECC_MAXIMIZE flag, to let ECC controller drivers select the best
ECC strength and step-size on their own.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
So far we relied on reset default or the bootloader to configure a
suitable clk rate for the Nand controller. This works but we can
optimize the timing for better performance. This sets the clk rate for
v2 controllers (i.MX25/35) based on the timing mode read from the ONFI
parameter page. This may also enable the symmetric mode (aks EDO mode)
if necessary which reads one word per clock cycle.
Tested on an i.MX25 with a Micron MT29F4G08ABBDAHC attached.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
To be able to support different ONFI timing modes we have to implement
the onfi_set_features and onfi_get_features. Tested on an i.MX25 SoC.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The NAND framework is now able to select the best NAND timings for us.
All we have to do is implement a ->setup_data_interface() function to
apply those timings and remove the timing selection code from the sunxi
driver.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The NAND framework provides several helpers to query timing modes supported
by a NAND chip, but this implies that all NAND controller drivers have
to implement the same timings selection dance. Also currently NAND
devices can be resetted at arbitrary places which also resets the timing
for ONFI chips to timing mode 0.
Provide a common logic to select the best timings based on ONFI or
->onfi_timing_mode_default information. Hook this into nand_reset()
to make sure the new timing is applied each time during a reset.
NAND controller willing to support timings adjustment should just
implement the ->setup_data_interface() method.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The nand layer will need ONFI mode 0 to use it as timing mode
before and right after reset.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
onfi_init_data_interface() initializes a data interface with
values from a given ONFI mode.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
struct nand_data_interface is the designated type to pass to
the NAND drivers to configure the timing. To simplify further
patches convert the onfi_sdr_timings array from type struct
nand_sdr_timings nand_data_interface.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
When NAND devices are resetted some initialization may have to be done,
like for example they have to be configured for the timing mode that
shall be used. To get a common place where this initialization can be
implemented create a nand_reset() function. This currently only issues
a NAND_CMD_RESET to the NAND device. The places issuing this command
manually are replaced with a call to nand_reset().
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Some Keystone devices (e.g. K2G) include a OMAP NAND IP.
Allow the NAND driver to be usable for both
Keystone and OMAP devices.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This patch adds big endian and ONFI support for various iProc based
SoCs that use the core brcmstb NAND controller
This patch was originally implemented by Prafulla Kota
<prafulla.kota@broadcom.com> and fully tested on iProc based NS2 SVK
Signed-off-by: Prafulla Kota <prafulla.kota@broadcom.com>
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Kamal Dasu <kdasu.kdev@gmail.com>
Acked-by: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
If erasing or writing the BBT fails, we should mark the current BBT
block as bad and use the BBT descriptor to scan for the next available
unused block in the BBT. We should only return a failure if there isn't
any space left.
Signed-off-by: Kyle Roeschley <kyle.roeschley@ni.com>
Suggested-by: Jeff Westfahl <jeff.westfahl@ni.com>
Tested-by: Kyle Roeschley <kyle.roeschley@ni.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This clarifies the write_bbt() function by removing the write label
and simplifying the error/exit path.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Kyle Roeschley <kyle.roeschley@ni.com>
In the ONFI spec, the tRR_min entry is defined before the tRST_max one.
Reoder the definition to make it easier to review.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
ONFI 4.0 spec defines different values for the tADL_min timing.
Since we don't want to have different timings depending on the ONFI
version, we just set tADL_min to the maximum value (the one specified
in the ONFI 4.0 spec).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
change the way to calculate pagesize to get correct free oob space for
legacy_set_geometry function.
Signed-off-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Some build tools noticed that 'cookie' is being set but not used. Might
as well catch the errors here and handle them the same way we handle
other DMA prep steps.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The driver registered for CPU frequency transitions to recalculate its
clock when ARM clock frequency changes (ratio between frequencies of
ARM's parent clock (fclk) and clock for peripherals remains fixed).
This is needed only on S3C24xx platform when cpufreq driver is enabled
so limit the ifdef to respective cpufreq Kconfig.
Suggested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Using "goto" and "switch" statement only makes it harder to follow
control flow and doesn't bring any advantages. Rewrite the code to avoid
using "goto".
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
If no user specified chip->select_chip() function is provided, code in
nand_base.c will automatically set this hook to nand_select_chip(),
which in turn depends on chip->cmd_ctrl() hook being valid. Not
providing both of those functions in NAND controller driver (for example
by mistake) will result in a bit cryptic segfault. Same is true for
chip->cmdfunc().
To avoid the above scenario add a check in nand_scan_dent and error out
if cmd_ctrl() is not provided.
Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Suggested-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Config MTD_NAND_FSL_IFC is already located inside 'if MTD_NAND'
statment, so there's no need to explicitly specify it as a dependency.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
MTD_NAND_FSL_ELBC selects FSL_LBC that in turn depends on FSL_SOC, so
depending on PPC instead of FSL_SOC leads to this message:
warning: (MPC836x_RDK && MTD_NAND_FSL_ELBC &&
MTD_NAND_FSL_UPM) selects FSL_LBC which has unmet direct
dependencies (FSL_SOC)
when doing
make ARCH=powerpc \
CROSS_COMPILE=powerpc-e500v2-linux-gnuspe- \
allmodconfig"
Changing dependency to FSL_SOC fixes that.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
The code to initialize a struct nand_hw_control is duplicated across
several drivers. Factorize it using an inline function.
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
commit a894cf6c5a ("mtd: nand: mxc: switch to mtd_ooblayout_ops")
introduced a regression accessing the OOB area from the mxc_nand
driver due to an Obiwan error in the mxc_nand_v[12]_ooblayout_free()
functions. They report a bogus oobregion { 64, 7 } which leads to
errors accessing bogus data when reading the oob area.
Prior to the commit the mtd-oobtest module could be run without any
errors. With the offending commit, this test fails with results like:
|Running mtd-oobtest
|
|=================================================
|mtd_oobtest: MTD device: 5
|mtd_oobtest: MTD device size 524288, eraseblock size 131072, page size 2048, count of eraseblocks 4, pages per eraseblock 64, OOB size 64
|mtd_test: scanning for bad eraseblocks
|mtd_test: scanned 4 eraseblocks, 0 are bad
|mtd_oobtest: test 1 of 5
|mtd_oobtest: writing OOBs of whole device
|mtd_oobtest: written up to eraseblock 0
|mtd_oobtest: written 4 eraseblocks
|mtd_oobtest: verifying all eraseblocks
|mtd_oobtest: error @addr[0x0:0x19] 0x9a -> 0x78 diff 0xe2
|mtd_oobtest: error @addr[0x0:0x1a] 0xcc -> 0x0 diff 0xcc
|mtd_oobtest: error @addr[0x0:0x1b] 0xe0 -> 0x85 diff 0x65
|mtd_oobtest: error @addr[0x0:0x1c] 0x60 -> 0x62 diff 0x2
|mtd_oobtest: error @addr[0x0:0x1d] 0x69 -> 0x45 diff 0x2c
|mtd_oobtest: error @addr[0x0:0x1e] 0xcd -> 0xa0 diff 0x6d
|mtd_oobtest: error @addr[0x0:0x1f] 0xf2 -> 0x60 diff 0x92
|mtd_oobtest: error: verify failed at 0x0
[...]
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Fixes: a894cf6c5a ("mtd: nand: mxc: switch to mtd_ooblayout_ops")
Cc: <stable@vger.kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
When mtk_nfc_do_write_page() comparing the sector number,because the
sector number field is at the 12th-bit position of NFI_BYTELEN
register,the masked register should be shifted 12 bits before being
compared.The result of this bug may cause the second subpage has
incomplete ECC parity bytes.
Signed-off-by: RogerCC Lin <rogercc.lin@mediatek.com>
Fixes: 1d6b1e4649 ("mtd: mediatek: driver for MTK Smart Device")
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
When mtk_ecc_encode() is writing the ECC parity data to the OOB
region,because each register is 4 bytes in length,but the len's unit is
in bytes,the operation in the for loop will cross the ECC's boundary.
Signed-off-by: RogerCC Lin <rogercc.lin@mediatek.com>
Fixes: 1d6b1e4649 ("mtd: mediatek: driver for MTK Smart Device")
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
MLC and TLC NAND devices are using NAND cells exposing more than one bit,
but instead of attaching all the bits in a given cell to a single NAND
page, each bit is usually attached to a different page. This concept is
called 'page pairing', and has significant impacts on the flash storage
usage.
The main problem showed by these devices is that interrupting a page
program operation may not only corrupt the page we are programming
but also the page it is paired with, hence the need to expose to MTD
users the pairing scheme information.
The pairing APIs allows one to query pairing information attached to a
given page (here called wunit), or the other way around (the wunit
pointed by pairing information).
It also provides several helpers to help the conversion between absolute
offsets and wunits, and query the number of pairing groups.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Brian Norris <computersforpeace@gmail.com>
All drivers use the default, so provide an inline version of it. If we
ever need other queue mapping we can add an optional method back,
although supporting will also require major changes to the queue setup
code.
This provides better code generation, and better debugability as well.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This fixes subpage writes when using 4-bit HW ECC.
There has been numerous reports about ECC errors with devices using this
driver for a while. Also the 4-bit ECC has been reported as broken with
subpages in [1] and with 16 bits NANDs in the driver and in mach* board
files both in mainline and in the vendor BSPs.
What I saw with 4-bit ECC on a 16bits NAND (on an LCDK) which got me to
try reinitializing the ECC engine:
- R/W on whole pages properly generates/checks RS code
- try writing the 1st subpage only of a blank page, the subpage is well
written and the RS code properly generated, re-reading the same page
the HW detects some ECC error, reading the same page again no ECC
error is detected
Note that the ECC engine is already reinitialized in the 1-bit case.
Tested on my LCDK with UBI+UBIFS using subpages.
This could potentially get rid of the issue workarounded in [1].
[1] 28c015a9da ("mtd: davinci-nand: disable subpage write for keystone-nand")
Fixes: 6a4123e581 ("mtd: nand: davinci_nand, 4-bit ECC for smallpage")
Cc: <stable@vger.kernel.org>
Signed-off-by: Karl Beldan <kbeldan@baylibre.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
dma_request_chan() can fail returning an error pointer. In this case
prevent calling dma_release_channel() to prevent a ERR_PTR() dereference.
As error path can be called even with no DMA configuration, info->dma can
be NULL so don't call dma_release_channel() for that case either.
Fixes: de3bfc4a1616: ("mtd: nand: omap2: fix return value check in omap_nand_probe()")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This reduces the Kconfig for the RealView by assuming we are
always booting from the device tree, and removing all the uses
of CONFIG_REALVIEW_DT and replacing with CONFIG_ARCH_REALVIEW.
Further:
- Drop REALVIEW_HIGH_PHYS_OFFSET: we don't use this with device
tree.
- Drop the REALVIEW_EB_ARM11MP_REVB option: we now handle this
by simply using another device tree.
- Drop the PB1176 secure flash option: this is defined in the
PB1176 device tree but marked as "disabled", so users who
want to use it can simply enable it in the device tree and
go hacking around.
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
improvements of UBI and UBIFS.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=hOxy
-----END PGP SIGNATURE-----
Merge tag 'upstream-4.8-rc1' of git://git.infradead.org/linux-ubifs
Pull UBI/UBIFS updates from Richard Weinberger:
"This contains mostly cleanups and minor improvements of UBI and UBIFS"
* tag 'upstream-4.8-rc1' of git://git.infradead.org/linux-ubifs:
ubi: Use bitmaps in Fastmap self-check code
ubi: Be more paranoid while seaching for the most recent Fastmap
ubi: Check whether the Fastmap anchor matches the super block
ubi: Rework Fastmap attach base code
ubi: Fix whitespace issue in count_fastmap_pebs()
ubi: Introduce vol_ignored()
ubi: Fix scan_fast() comment
ubifs: switch_gc_head: Remove redondant sync of wbuf
ubi: Make volume resize power cut aware
ubi: Fix early logging
ubi: gluebi: Fix double refcounting
ubifs: Silence early error messages if MS_SILENT is set
ubi: Fix race condition between ubi device creation and udev
ubifs: Update comment for ubifs_errc
ubi: Only read necessary size when reading the VID header
ubifs: Make xattr structures static
ubifs: Silence error output if MS_SILENT is set
The use of config_enabled() against config options is ambiguous. In
practical terms, config_enabled() is equivalent to IS_BUILTIN(), but the
author might have used it for the meaning of IS_ENABLED(). Using
IS_ENABLED(), IS_BUILTIN(), IS_MODULE() etc. makes the intention
clearer.
This commit replaces config_enabled() with IS_ENABLED() where possible.
This commit is only touching bool config options.
I noticed two cases where config_enabled() is used against a tristate
option:
- config_enabled(CONFIG_HWMON)
[ drivers/net/wireless/ath/ath10k/thermal.c ]
- config_enabled(CONFIG_BACKLIGHT_CLASS_DEVICE)
[ drivers/gpu/drm/gma500/opregion.c ]
I did not touch them because they should be converted to IS_BUILTIN()
in order to keep the logic, but I was not sure it was the authors'
intention.
Link: http://lkml.kernel.org/r/1465215656-20569-1-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Stas Sergeev <stsp@list.ru>
Cc: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: Joshua Kinard <kumba@gentoo.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: "Dmitry V. Levin" <ldv@altlinux.org>
Cc: yu-cheng yu <yu-cheng.yu@intel.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Will Drewry <wad@chromium.org>
Cc: Nikolay Martynov <mar.kolya@gmail.com>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: Rafal Milecki <zajec5@gmail.com>
Cc: James Cowgill <James.Cowgill@imgtec.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Alex Smith <alex.smith@imgtec.com>
Cc: Adam Buchbinder <adam.buchbinder@gmail.com>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Mikko Rapeli <mikko.rapeli@iki.fi>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Cc: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Roland McGrath <roland@hack.frob.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Tony Wu <tung7970@gmail.com>
Cc: Huaitong Han <huaitong.han@intel.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andrea Gelmini <andrea.gelmini@gelma.net>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Rabin Vincent <rabin@rab.in>
Cc: "Maciej W. Rozycki" <macro@imgtec.com>
Cc: David Daney <david.daney@cavium.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
NAND:
Updates from Boris:
"""
This pull request contains only one notable change:
* Addition of the MTK NAND controller driver
And a bunch of specific NAND driver improvements/fixes. Here are the
changes that are worth mentioning:
* A few fixes/improvements for the xway NAND controller driver
* A few fixes for the sunxi NAND controller driver
* Support for DMA in the sunxi NAND driver
* Support for the sunxi NAND controller IP embedded in A23/A33 SoCs
* Addition for bitflips detection in erased pages to the brcmnand driver
* Support for new brcmnand IPs
* Update of the OMAP-GPMC binding to support DMA channel description
"""
In addition, some small fixes around error handling, etc., as well as one
long-standing corner case issue (2.6.20, I think?) with writing 1 byte less
than a page.
NOR:
* Rework some error handling on reads and writes, so we can better handle (for
instance) SPI controllers which have limitations on their maximum transfer size
* Add new Cadence Quad SPI flash controller driver
* Add new Atmel QSPI flash controller driver
* Add new Hisilicon SPI flash controller driver
* Support a few new flash, and update supported features on others
* Fix the logic used for detecting a fully-unlocked flash
And other miscellaneous small fixes.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQIcBAABAgAGBQJXn/j0AAoJEFySrpd9RFgto58P/j1huB0d21zFen3teo8YKKr1
dLi65mFbqtpU1BLqD07uc2gsH17kvezFJCtx8H8Jp/yCjLF2kYIKL7wDTf6OJPtn
aYGS5dG5jhMIq+6CD2olKqy+IVLfL9GvCf44Z3fpVta5lOn09y7Jm0AkBjmJcH45
SdJi+iUkSKhqRY3O2udyauGyL4JWG7eHUonrG9g8ROrO0GWQkT4Ijm1ZwIBlFDkJ
e1N960OqPg5ISOzuTeM14Ok9IUyeb7wiXhqRfOJgzNk6iBcN1YC2ono3C7RH2sN7
wiyCqqUpDDCDBDiFdGOdpc9cjzNysrt02ypWRsZIpQVCm89nPLSutqQEWLuo0qzq
/eIzdwbk1AxX96CeQohOezqL+n6+RHP9AIvwzL9GeWjipD1LBvfM1l3CmuSKK5jb
bQ4CA/FVz1tO/25q8tuLJfpFzhFE2PC3pphVf8tREL/U6OR/97NgDMuQIuqiQpRc
4nJtu79yacAzEiztZh0bsx+t94QFE+kfs/6d8m+llLEyx2sI8HKZeDvNRwEB0OsD
wQ5bjyd54m7+i4H8njrnOTP+K2YrwNjGlbTo7qrRSpFMDr4mD0VQLap03Srvo5xV
OYB6uGZhGV2L3k6nG5wywM2z6Hw0QfHxjrpcLyG51xABmni2QF3lOdYSllRtRTXp
aYLfPUqgIgSUI2GTDHyW
=HQr0
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20160801' of git://git.infradead.org/linux-mtd
Pull MTD updates from Brian Norris:
"NAND:
Quoting Boris:
'This pull request contains only one notable change:
- Addition of the MTK NAND controller driver
And a bunch of specific NAND driver improvements/fixes. Here are the
changes that are worth mentioning:
- A few fixes/improvements for the xway NAND controller driver
- A few fixes for the sunxi NAND controller driver
- Support for DMA in the sunxi NAND driver
- Support for the sunxi NAND controller IP embedded in A23/A33 SoCs
- Addition for bitflips detection in erased pages to the brcmnand driver
- Support for new brcmnand IPs
- Update of the OMAP-GPMC binding to support DMA channel description'
In addition, some small fixes around error handling, etc., as well
as one long-standing corner case issue (2.6.20, I think?) with
writing 1 byte less than a page.
NOR:
- rework some error handling on reads and writes, so we can better
handle (for instance) SPI controllers which have limitations on
their maximum transfer size
- add new Cadence Quad SPI flash controller driver
- add new Atmel QSPI flash controller driver
- add new Hisilicon SPI flash controller driver
- support a few new flash, and update supported features on others
- fix the logic used for detecting a fully-unlocked flash
And other miscellaneous small fixes"
* tag 'for-linus-20160801' of git://git.infradead.org/linux-mtd: (60 commits)
mtd: spi-nor: don't build Cadence QuadSPI on non-ARM
mtd: mtk-nor: remove duplicated include from mtk-quadspi.c
mtd: nand: fix bug writing 1 byte less than page size
mtd: update description of MTD_BCM47XXSFLASH symbol
mtd: spi-nor: Add driver for Cadence Quad SPI Flash Controller
mtd: spi-nor: Bindings for Cadence Quad SPI Flash Controller driver
mtd: nand: brcmnand: Change BUG_ON in brcmnand_send_cmd
mtd: pmcmsp-flash: Allocating too much in init_msp_flash()
mtd: maps: sa1100-flash: potential NULL dereference
mtd: atmel-quadspi: add driver for Atmel QSPI controller
mtd: nand: omap2: fix return value check in omap_nand_probe()
Documentation: atmel-quadspi: add binding file for Atmel QSPI driver
mtd: spi-nor: add hisilicon spi-nor flash controller driver
mtd: spi-nor: support dual, quad, and WP for Gigadevice
mtd: spi-nor: Added support for n25q00a.
memory: Update dependency of IFC for Layerscape
mtd: nand: jz4780: Update MODULE_AUTHOR email address
mtd: nand: sunxi: prevent a small memory leak
mtd: nand: sunxi: add reset line support
mtd: nand: sunxi: update DT bindings
...
Highlights:
- PowerNV PCI hotplug support.
- Lots more Power9 support.
- eBPF JIT support on ppc64le.
- Lots of cxl updates.
- Boot code consolidation.
Bug fixes:
- Fix spin_unlock_wait() from Boqun Feng
- Fix stack pointer corruption in __tm_recheckpoint() from Michael Neuling
- Fix multiple bugs in memory_hotplug_max() from Bharata B Rao
- mm: Ensure "special" zones are empty from Oliver O'Halloran
- ftrace: Separate the heuristics for checking call sites from Michael Ellerman
- modules: Never restore r2 for a mprofile-kernel style mcount() call from Michael Ellerman
- Fix endianness when reading TCEs from Alexey Kardashevskiy
- start rtasd before PCI probing from Greg Kurz
- PCI: rpaphp: Fix slot registration for multiple slots under a PHB from Tyrel Datwyler
- powerpc/mm: Add memory barrier in __hugepte_alloc() from Sukadev Bhattiprolu
Cleanups & fixes:
- Drop support for MPIC in pseries from Rashmica Gupta
- Define and use PPC64_ELF_ABI_v2/v1 from Michael Ellerman
- Remove unused symbols in asm-offsets.c from Rashmica Gupta
- Fix SRIOV not building without EEH enabled from Russell Currey
- Remove kretprobe_trampoline_holder. from Thiago Jung Bauermann
- Reduce log level of PCI I/O space warning from Benjamin Herrenschmidt
- Add array bounds checking to crash_shutdown_handlers from Suraj Jitindar Singh
- Avoid -maltivec when using clang integrated assembler from Anton Blanchard
- Fix array overrun in ppc_rtas() syscall from Andrew Donnellan
- Fix error return value in cmm_mem_going_offline() from Rasmus Villemoes
- export cpu_to_core_id() from Mauricio Faria de Oliveira
- Remove old symbols from defconfigs from Andrew Donnellan
- Update obsolete comments in setup_32.c about entry conditions from Benjamin Herrenschmidt
- Add comment explaining the purpose of setup_kdump_trampoline() from Benjamin Herrenschmidt
- Merge the RELOCATABLE config entries for ppc32 and ppc64 from Kevin Hao
- Remove RELOCATABLE_PPC32 from Kevin Hao
- Fix .long's in tlb-radix.c to more meaningful from Balbir Singh
Minor cleanups & fixes:
- Andrew Donnellan, Anna-Maria Gleixner, Anton Blanchard, Benjamin
Herrenschmidt, Bharata B Rao, Christophe Leroy, Colin Ian King, Geliang
Tang, Greg Kurz, Madhavan Srinivasan, Michael Ellerman, Michael Ellerman,
Stephen Rothwell, Stewart Smith.
Freescale updates from Scott:
- "Highlights include more 8xx optimizations, device tree updates,
and MVME7100 support."
PowerNV PCI hotplug from Gavin Shan:
- PCI: Add pcibios_setup_bridge()
- Override pcibios_setup_bridge()
- Remove PCI_RESET_DELAY_US
- Move pnv_pci_ioda_setup_opal_tce_kill() around
- Increase PE# capacity
- Allocate PE# in reverse order
- Create PEs in pcibios_setup_bridge()
- Setup PE for root bus
- Extend PCI bridge resources
- Make pnv_ioda_deconfigure_pe() visible
- Dynamically release PE
- Update bridge windows on PCI plug
- Delay populating pdn
- Support PCI slot ID
- Use PCI slot reset infrastructure
- Introduce pnv_pci_get_slot_id()
- Functions to get/set PCI slot state
- PCI/hotplug: PowerPC PowerNV PCI hotplug driver
- Print correct PHB type names
Power9 idle support from Shreyas B. Prabhu:
- set power_save func after the idle states are initialized
- Use PNV_THREAD_WINKLE macro while requesting for winkle
- make hypervisor state restore a function
- Rename idle_power7.S to idle_book3s.S
- Rename reusable idle functions to hardware agnostic names
- Make pnv_powersave_common more generic
- abstraction for saving SPRs before entering deep idle states
- Add platform support for stop instruction
- cpuidle/powernv: Use CPUIDLE_STATE_MAX instead of MAX_POWERNV_IDLE_STATES
- cpuidle/powernv: cleanup cpuidle-powernv.c
- cpuidle/powernv: Add support for POWER ISA v3 idle states
- Use deepest stop state when cpu is offlined
Power9 PMU from Madhavan Srinivasan:
- factor out power8 pmu macros and defines
- factor out power8 pmu functions
- factor out power8 __init_pmu code
- Add power9 event list macros for generic and cache events
- Power9 PMU support
- Export Power9 generic and cache events to sysfs
Power9 preliminary interrupt & PCI support from Benjamin Herrenschmidt:
- Add XICS emulation APIs
- Move a few exception common handlers to make room
- Add support for HV virtualization interrupts
- Add mechanism to force a replay of interrupts
- Add ICP OPAL backend
- Discover IODA3 PHBs
- pci: Remove obsolete SW invalidate
- opal: Add real mode call wrappers
- Rename TCE invalidation calls
- Remove SWINV constants and obsolete TCE code
- Rework accessing the TCE invalidate register
- Fallback to OPAL for TCE invalidations
- Use the device-tree to get available range of M64's
- Check status of a PHB before using it
- pci: Don't try to allocate resources that will be reassigned
Other Power9:
- Send SIGBUS on unaligned copy and paste from Chris Smart
- Large Decrementer support from Oliver O'Halloran
- Load Monitor Register Support from Jack Miller
Performance improvements from Anton Blanchard:
- Avoid load hit store in __giveup_fpu() and __giveup_altivec()
- Avoid load hit store in setup_sigcontext()
- Remove assembly versions of strcpy, strcat, strlen and strcmp
- Align hot loops of some string functions
eBPF JIT from Naveen N. Rao:
- Fix/enhance 32-bit Load Immediate implementation
- Optimize 64-bit Immediate loads
- Introduce rotate immediate instructions
- A few cleanups
- Isolate classic BPF JIT specifics into a separate header
- Implement JIT compiler for extended BPF
Operator Panel driver from Suraj Jitindar Singh:
- devicetree/bindings: Add binding for operator panel on FSP machines
- Add inline function to get rc from an ASYNC_COMP opal_msg
- Add driver for operator panel on FSP machines
Sparse fixes from Daniel Axtens:
- make some things static
- Introduce asm-prototypes.h
- Include headers containing prototypes
- Use #ifdef __BIG_ENDIAN__ #else for REG_BYTE
- kvm: Clarify __user annotations
- Pass endianness to sparse
- Make ppc_md.{halt, restart} __noreturn
MM fixes & cleanups from Aneesh Kumar K.V:
- radix: Update LPCR HR bit as per ISA
- use _raw variant of page table accessors
- Compile out radix related functions if RADIX_MMU is disabled
- Clear top 16 bits of va only on older cpus
- Print formation regarding the the MMU mode
- hash: Update SDR1 size encoding as documented in ISA 3.0
- radix: Update PID switch sequence
- radix: Update machine call back to support new HCALL.
- radix: Add LPID based tlb flush helpers
- radix: Add a kernel command line to disable radix
- Cleanup LPCR defines
Boot code consolidation from Benjamin Herrenschmidt:
- Move epapr_paravirt_early_init() to early_init_devtree()
- cell: Don't use flat device-tree after boot
- ge_imp3a: Don't use the flat device-tree after boot
- mpc85xx_ds: Don't use the flat device-tree after boot
- mpc85xx_rdb: Don't use the flat device-tree after boot
- Don't test for machine type in rtas_initialize()
- Don't test for machine type in smp_setup_cpu_maps()
- dt: Add of_device_compatible_match()
- Factor do_feature_fixup calls
- Move 64-bit feature fixup earlier
- Move 64-bit memory reserves to setup_arch()
- Use a cachable DART
- Move FW feature probing out of pseries probe()
- Put exception configuration in a common place
- Remove early allocation of the SMU command buffer
- Move MMU backend selection out of platform code
- pasemi: Remove IOBMAP allocation from platform probe()
- mm/hash: Don't use machine_is() early during boot
- Don't test for machine type to detect HEA special case
- pmac: Remove spurrious machine type test
- Move hash table ops to a separate structure
- Ensure that ppc_md is empty before probing for machine type
- Move 64-bit probe_machine() to later in the boot process
- Move 32-bit probe() machine to later in the boot process
- Get rid of ppc_md.init_early()
- Move the boot time info banner to a separate function
- Move setting of {i,d}cache_bsize to initialize_cache_info()
- Move the content of setup_system() to setup_arch()
- Move cache info inits to a separate function
- Re-order the call to smp_setup_cpu_maps()
- Re-order setup_panic()
- Make a few boot functions __init
- Merge 32-bit and 64-bit setup_arch()
Other new features:
- tty/hvc: Use IRQF_SHARED for OPAL hvc consoles from Sam Mendoza-Jonas
- tty/hvc: Use opal irqchip interface if available from Sam Mendoza-Jonas
- powerpc: Add module autoloading based on CPU features from Alastair D'Silva
- crypto: vmx - Convert to CPU feature based module autoloading from Alastair D'Silva
- Wake up kopald polling thread before waiting for events from Benjamin Herrenschmidt
- xmon: Dump ISA 2.06 SPRs from Michael Ellerman
- xmon: Dump ISA 2.07 SPRs from Michael Ellerman
- Add a parameter to disable 1TB segs from Oliver O'Halloran
- powerpc/boot: Add OPAL console to epapr wrappers from Oliver O'Halloran
- Assign fixed PHB number based on device-tree properties from Guilherme G. Piccoli
- pseries: Add pseries hotplug workqueue from John Allen
- pseries: Add support for hotplug interrupt source from John Allen
- pseries: Use kernel hotplug queue for PowerVM hotplug events from John Allen
- pseries: Move property cloning into its own routine from Nathan Fontenot
- pseries: Dynamic add entires to associativity lookup array from Nathan Fontenot
- pseries: Auto-online hotplugged memory from Nathan Fontenot
- pseries: Remove call to memblock_add() from Nathan Fontenot
cxl:
- Add set and get private data to context struct from Michael Neuling
- make base more explicitly non-modular from Paul Gortmaker
- Use for_each_compatible_node() macro from Wei Yongjun
- Frederic Barrat
- Abstract the differences between the PSL and XSL
- Make vPHB device node match adapter's
- Philippe Bergheaud
- Add mechanism for delivering AFU driver specific events
- Ignore CAPI adapters misplaced in switched slots
- Refine slice error debug messages
- Andrew Donnellan
- static-ify variables to fix sparse warnings
- PCI/hotplug: pnv_php: export symbols and move struct types needed by cxl
- PCI/hotplug: pnv_php: handle OPAL_PCI_SLOT_OFFLINE power state
- Add cxl_check_and_switch_mode() API to switch bi-modal cards
- remove dead Kconfig options
- fix potential NULL dereference in free_adapter()
- Ian Munsie
- Update process element after allocating interrupts
- Add support for CAPP DMA mode
- Fix allowing bogus AFU descriptors with 0 maximum processes
- Fix allocating a minimum of 2 pages for the SPA
- Fix bug where AFU disable operation had no effect
- Workaround XSL bug that does not clear the RA bit after a reset
- Fix NULL pointer dereference on kernel contexts with no AFU interrupts
- powerpc/powernv: Split cxl code out into a separate file
- Add cxl_slot_is_supported API
- Enable bus mastering for devices using CAPP DMA mode
- Move cxl_afu_get / cxl_afu_put to base
- Allow a default context to be associated with an external pci_dev
- Do not create vPHB if there are no AFU configuration records
- powerpc/powernv: Add support for the cxl kernel api on the real phb
- Add support for using the kernel API with a real PHB
- Add kernel APIs to get & set the max irqs per context
- Add preliminary workaround for CX4 interrupt limitation
- Add support for interrupts on the Mellanox CX4
- Workaround PE=0 hardware limitation in Mellanox CX4
- powerpc/powernv: Fix pci-cxl.c build when CONFIG_MODULES=n
selftests:
- Test unaligned copy and paste from Chris Smart
- Load Monitor Register Tests from Jack Miller
- Cyril Bur
- exec() with suspended transaction
- Use signed long to read perf_event_paranoid
- Fix usage message in context_switch
- Fix generation of vector instructions/types in context_switch
- Michael Ellerman
- Use "Delta" rather than "Error" in normal output
- Import Anton's mmap & futex micro benchmarks
- Add a test for PROT_SAO
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=Z5kM
-----END PGP SIGNATURE-----
Merge tag 'powerpc-4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Highlights:
- PowerNV PCI hotplug support.
- Lots more Power9 support.
- eBPF JIT support on ppc64le.
- Lots of cxl updates.
- Boot code consolidation.
Bug fixes:
- Fix spin_unlock_wait() from Boqun Feng
- Fix stack pointer corruption in __tm_recheckpoint() from Michael
Neuling
- Fix multiple bugs in memory_hotplug_max() from Bharata B Rao
- mm: Ensure "special" zones are empty from Oliver O'Halloran
- ftrace: Separate the heuristics for checking call sites from
Michael Ellerman
- modules: Never restore r2 for a mprofile-kernel style mcount() call
from Michael Ellerman
- Fix endianness when reading TCEs from Alexey Kardashevskiy
- start rtasd before PCI probing from Greg Kurz
- PCI: rpaphp: Fix slot registration for multiple slots under a PHB
from Tyrel Datwyler
- powerpc/mm: Add memory barrier in __hugepte_alloc() from Sukadev
Bhattiprolu
Cleanups & fixes:
- Drop support for MPIC in pseries from Rashmica Gupta
- Define and use PPC64_ELF_ABI_v2/v1 from Michael Ellerman
- Remove unused symbols in asm-offsets.c from Rashmica Gupta
- Fix SRIOV not building without EEH enabled from Russell Currey
- Remove kretprobe_trampoline_holder from Thiago Jung Bauermann
- Reduce log level of PCI I/O space warning from Benjamin
Herrenschmidt
- Add array bounds checking to crash_shutdown_handlers from Suraj
Jitindar Singh
- Avoid -maltivec when using clang integrated assembler from Anton
Blanchard
- Fix array overrun in ppc_rtas() syscall from Andrew Donnellan
- Fix error return value in cmm_mem_going_offline() from Rasmus
Villemoes
- export cpu_to_core_id() from Mauricio Faria de Oliveira
- Remove old symbols from defconfigs from Andrew Donnellan
- Update obsolete comments in setup_32.c about entry conditions from
Benjamin Herrenschmidt
- Add comment explaining the purpose of setup_kdump_trampoline() from
Benjamin Herrenschmidt
- Merge the RELOCATABLE config entries for ppc32 and ppc64 from Kevin
Hao
- Remove RELOCATABLE_PPC32 from Kevin Hao
- Fix .long's in tlb-radix.c to more meaningful from Balbir Singh
Minor cleanups & fixes:
- Andrew Donnellan, Anna-Maria Gleixner, Anton Blanchard, Benjamin
Herrenschmidt, Bharata B Rao, Christophe Leroy, Colin Ian King,
Geliang Tang, Greg Kurz, Madhavan Srinivasan, Michael Ellerman,
Michael Ellerman, Stephen Rothwell, Stewart Smith.
Freescale updates from Scott:
- "Highlights include more 8xx optimizations, device tree updates,
and MVME7100 support."
PowerNV PCI hotplug from Gavin Shan:
- PCI: Add pcibios_setup_bridge()
- Override pcibios_setup_bridge()
- Remove PCI_RESET_DELAY_US
- Move pnv_pci_ioda_setup_opal_tce_kill() around
- Increase PE# capacity
- Allocate PE# in reverse order
- Create PEs in pcibios_setup_bridge()
- Setup PE for root bus
- Extend PCI bridge resources
- Make pnv_ioda_deconfigure_pe() visible
- Dynamically release PE
- Update bridge windows on PCI plug
- Delay populating pdn
- Support PCI slot ID
- Use PCI slot reset infrastructure
- Introduce pnv_pci_get_slot_id()
- Functions to get/set PCI slot state
- PCI/hotplug: PowerPC PowerNV PCI hotplug driver
- Print correct PHB type names
Power9 idle support from Shreyas B. Prabhu:
- set power_save func after the idle states are initialized
- Use PNV_THREAD_WINKLE macro while requesting for winkle
- make hypervisor state restore a function
- Rename idle_power7.S to idle_book3s.S
- Rename reusable idle functions to hardware agnostic names
- Make pnv_powersave_common more generic
- abstraction for saving SPRs before entering deep idle states
- Add platform support for stop instruction
- cpuidle/powernv: Use CPUIDLE_STATE_MAX instead of MAX_POWERNV_IDLE_STATES
- cpuidle/powernv: cleanup cpuidle-powernv.c
- cpuidle/powernv: Add support for POWER ISA v3 idle states
- Use deepest stop state when cpu is offlined
Power9 PMU from Madhavan Srinivasan:
- factor out power8 pmu macros and defines
- factor out power8 pmu functions
- factor out power8 __init_pmu code
- Add power9 event list macros for generic and cache events
- Power9 PMU support
- Export Power9 generic and cache events to sysfs
Power9 preliminary interrupt & PCI support from Benjamin Herrenschmidt:
- Add XICS emulation APIs
- Move a few exception common handlers to make room
- Add support for HV virtualization interrupts
- Add mechanism to force a replay of interrupts
- Add ICP OPAL backend
- Discover IODA3 PHBs
- pci: Remove obsolete SW invalidate
- opal: Add real mode call wrappers
- Rename TCE invalidation calls
- Remove SWINV constants and obsolete TCE code
- Rework accessing the TCE invalidate register
- Fallback to OPAL for TCE invalidations
- Use the device-tree to get available range of M64's
- Check status of a PHB before using it
- pci: Don't try to allocate resources that will be reassigned
Other Power9:
- Send SIGBUS on unaligned copy and paste from Chris Smart
- Large Decrementer support from Oliver O'Halloran
- Load Monitor Register Support from Jack Miller
Performance improvements from Anton Blanchard:
- Avoid load hit store in __giveup_fpu() and __giveup_altivec()
- Avoid load hit store in setup_sigcontext()
- Remove assembly versions of strcpy, strcat, strlen and strcmp
- Align hot loops of some string functions
eBPF JIT from Naveen N. Rao:
- Fix/enhance 32-bit Load Immediate implementation
- Optimize 64-bit Immediate loads
- Introduce rotate immediate instructions
- A few cleanups
- Isolate classic BPF JIT specifics into a separate header
- Implement JIT compiler for extended BPF
Operator Panel driver from Suraj Jitindar Singh:
- devicetree/bindings: Add binding for operator panel on FSP machines
- Add inline function to get rc from an ASYNC_COMP opal_msg
- Add driver for operator panel on FSP machines
Sparse fixes from Daniel Axtens:
- make some things static
- Introduce asm-prototypes.h
- Include headers containing prototypes
- Use #ifdef __BIG_ENDIAN__ #else for REG_BYTE
- kvm: Clarify __user annotations
- Pass endianness to sparse
- Make ppc_md.{halt, restart} __noreturn
MM fixes & cleanups from Aneesh Kumar K.V:
- radix: Update LPCR HR bit as per ISA
- use _raw variant of page table accessors
- Compile out radix related functions if RADIX_MMU is disabled
- Clear top 16 bits of va only on older cpus
- Print formation regarding the the MMU mode
- hash: Update SDR1 size encoding as documented in ISA 3.0
- radix: Update PID switch sequence
- radix: Update machine call back to support new HCALL.
- radix: Add LPID based tlb flush helpers
- radix: Add a kernel command line to disable radix
- Cleanup LPCR defines
Boot code consolidation from Benjamin Herrenschmidt:
- Move epapr_paravirt_early_init() to early_init_devtree()
- cell: Don't use flat device-tree after boot
- ge_imp3a: Don't use the flat device-tree after boot
- mpc85xx_ds: Don't use the flat device-tree after boot
- mpc85xx_rdb: Don't use the flat device-tree after boot
- Don't test for machine type in rtas_initialize()
- Don't test for machine type in smp_setup_cpu_maps()
- dt: Add of_device_compatible_match()
- Factor do_feature_fixup calls
- Move 64-bit feature fixup earlier
- Move 64-bit memory reserves to setup_arch()
- Use a cachable DART
- Move FW feature probing out of pseries probe()
- Put exception configuration in a common place
- Remove early allocation of the SMU command buffer
- Move MMU backend selection out of platform code
- pasemi: Remove IOBMAP allocation from platform probe()
- mm/hash: Don't use machine_is() early during boot
- Don't test for machine type to detect HEA special case
- pmac: Remove spurrious machine type test
- Move hash table ops to a separate structure
- Ensure that ppc_md is empty before probing for machine type
- Move 64-bit probe_machine() to later in the boot process
- Move 32-bit probe() machine to later in the boot process
- Get rid of ppc_md.init_early()
- Move the boot time info banner to a separate function
- Move setting of {i,d}cache_bsize to initialize_cache_info()
- Move the content of setup_system() to setup_arch()
- Move cache info inits to a separate function
- Re-order the call to smp_setup_cpu_maps()
- Re-order setup_panic()
- Make a few boot functions __init
- Merge 32-bit and 64-bit setup_arch()
Other new features:
- tty/hvc: Use IRQF_SHARED for OPAL hvc consoles from Sam Mendoza-Jonas
- tty/hvc: Use opal irqchip interface if available from Sam Mendoza-Jonas
- powerpc: Add module autoloading based on CPU features from Alastair D'Silva
- crypto: vmx - Convert to CPU feature based module autoloading from Alastair D'Silva
- Wake up kopald polling thread before waiting for events from Benjamin Herrenschmidt
- xmon: Dump ISA 2.06 SPRs from Michael Ellerman
- xmon: Dump ISA 2.07 SPRs from Michael Ellerman
- Add a parameter to disable 1TB segs from Oliver O'Halloran
- powerpc/boot: Add OPAL console to epapr wrappers from Oliver O'Halloran
- Assign fixed PHB number based on device-tree properties from Guilherme G. Piccoli
- pseries: Add pseries hotplug workqueue from John Allen
- pseries: Add support for hotplug interrupt source from John Allen
- pseries: Use kernel hotplug queue for PowerVM hotplug events from John Allen
- pseries: Move property cloning into its own routine from Nathan Fontenot
- pseries: Dynamic add entires to associativity lookup array from Nathan Fontenot
- pseries: Auto-online hotplugged memory from Nathan Fontenot
- pseries: Remove call to memblock_add() from Nathan Fontenot
cxl:
- Add set and get private data to context struct from Michael Neuling
- make base more explicitly non-modular from Paul Gortmaker
- Use for_each_compatible_node() macro from Wei Yongjun
- Frederic Barrat
- Abstract the differences between the PSL and XSL
- Make vPHB device node match adapter's
- Philippe Bergheaud
- Add mechanism for delivering AFU driver specific events
- Ignore CAPI adapters misplaced in switched slots
- Refine slice error debug messages
- Andrew Donnellan
- static-ify variables to fix sparse warnings
- PCI/hotplug: pnv_php: export symbols and move struct types needed by cxl
- PCI/hotplug: pnv_php: handle OPAL_PCI_SLOT_OFFLINE power state
- Add cxl_check_and_switch_mode() API to switch bi-modal cards
- remove dead Kconfig options
- fix potential NULL dereference in free_adapter()
- Ian Munsie
- Update process element after allocating interrupts
- Add support for CAPP DMA mode
- Fix allowing bogus AFU descriptors with 0 maximum processes
- Fix allocating a minimum of 2 pages for the SPA
- Fix bug where AFU disable operation had no effect
- Workaround XSL bug that does not clear the RA bit after a reset
- Fix NULL pointer dereference on kernel contexts with no AFU interrupts
- powerpc/powernv: Split cxl code out into a separate file
- Add cxl_slot_is_supported API
- Enable bus mastering for devices using CAPP DMA mode
- Move cxl_afu_get / cxl_afu_put to base
- Allow a default context to be associated with an external pci_dev
- Do not create vPHB if there are no AFU configuration records
- powerpc/powernv: Add support for the cxl kernel api on the real phb
- Add support for using the kernel API with a real PHB
- Add kernel APIs to get & set the max irqs per context
- Add preliminary workaround for CX4 interrupt limitation
- Add support for interrupts on the Mellanox CX4
- Workaround PE=0 hardware limitation in Mellanox CX4
- powerpc/powernv: Fix pci-cxl.c build when CONFIG_MODULES=n
selftests:
- Test unaligned copy and paste from Chris Smart
- Load Monitor Register Tests from Jack Miller
- Cyril Bur
- exec() with suspended transaction
- Use signed long to read perf_event_paranoid
- Fix usage message in context_switch
- Fix generation of vector instructions/types in context_switch
- Michael Ellerman
- Use "Delta" rather than "Error" in normal output
- Import Anton's mmap & futex micro benchmarks
- Add a test for PROT_SAO"
* tag 'powerpc-4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (263 commits)
powerpc/mm: Parenthesise IS_ENABLED() in if condition
tty/hvc: Use opal irqchip interface if available
tty/hvc: Use IRQF_SHARED for OPAL hvc consoles
selftests/powerpc: exec() with suspended transaction
powerpc: Improve comment explaining why we modify VRSAVE
powerpc/mm: Drop unused externs for hpte_init_beat[_v3]()
powerpc/mm: Rename hpte_init_lpar() and move the fallback to a header
powerpc/mm: Fix build break when PPC_NATIVE=n
crypto: vmx - Convert to CPU feature based module autoloading
powerpc: Add module autoloading based on CPU features
powerpc/powernv/ioda: Fix endianness when reading TCEs
powerpc/mm: Add memory barrier in __hugepte_alloc()
powerpc/modules: Never restore r2 for a mprofile-kernel style mcount() call
powerpc/ftrace: Separate the heuristics for checking call sites
powerpc: Merge 32-bit and 64-bit setup_arch()
powerpc/64: Make a few boot functions __init
powerpc: Re-order setup_panic()
powerpc: Re-order the call to smp_setup_cpu_maps()
powerpc/32: Move cache info inits to a separate function
powerpc/64: Move the content of setup_system() to setup_arch()
...
Since PEB erasure is asynchornous it can happen that there is
more than one Fastmap on the MTD. This is fine because the attach logic
will pick the Fastmap data structure with the highest sequence number.
On a not so well configured MTD stack spurious ECC errors are common.
Causes can be different, bad hardware, wrong operating modes, etc...
If the most current Fastmap renders bad due to ECC errors UBI might
pick an older Fastmap to attach from.
While this can only happen on an anyway broken setup it will show
completely different sympthoms and makes finding the root cause much
more difficult.
So, be debug friendly and fall back to scanning mode of we're facing
an ECC error while scanning for Fastmap.
Cc: <stable@vger.kernel.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
This helps to detect cases where an user copies an UBI image to
another target with different bad blocks.
Signed-off-by: Richard Weinberger <richard@nod.at>
Introduce a new list to the UBI attach information
object to be able to deal better with old and corrupted
Fastmap eraseblocks.
Also move more Fastmap specific code into fastmap.c.
Signed-off-by: Richard Weinberger <richard@nod.at>
When the volume resize operation shrinks a volume,
LEBs will be unmapped. Since unmapping will not erase these
LEBs immediately we have to wait for that operation to finish.
Otherwise in case of a power cut right after writing the new
volume table the UBI attach process can find more LEBs than the
volume table knows. This will render the UBI image unattachable.
Fix this issue by waiting for erase to complete and write the new
volume table afterward.
Cc: <stable@vger.kernel.org>
Reported-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
We cannot use ubi_* logging functions before the UBI
object is initialized.
Cc: <stable@vger.kernel.org>
Fixes: 3260870331 ("UBI: Extend UBI layer debug/messaging capabilities")
Signed-off-by: Richard Weinberger <richard@nod.at>
There is no need to call get/put on the module
reference in gluebi_get/put_device() callbacks.
Since mtd->owner is the gluebi module itself
mtdcore.c will take care of proper refcounting
in __get/put_mtd_device() before executing the
callbacks.
Signed-off-by: Richard Weinberger <richard@nod.at>
Install the UBI device object before we arm sysfs.
Otherwise udev tries to read sysfs attributes before UBI is ready and
udev rules will not match.
Cc: <stable@vger.kernel.org>
Signed-off-by: Iosif Harutyunov <iharutyunov@sonicwall.com>
[rw: massaged commit message]
Signed-off-by: Richard Weinberger <richard@nod.at>
When reading the vid hdr from the device UBI always reads a whole
page. Instead, read only the data we actually need and speed up
attachment of UBI devices by potentially making use of reading
subpages if the NAND driver supports it.
Since the VID header may be at offset vid_hdr_shift in the page and
we can only read from the beginning of a page we have to add that
offset to the read size.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
Pull networking updates from David Miller:
1) Unified UDP encapsulation offload methods for drivers, from
Alexander Duyck.
2) Make DSA binding more sane, from Andrew Lunn.
3) Support QCA9888 chips in ath10k, from Anilkumar Kolli.
4) Several workqueue usage cleanups, from Bhaktipriya Shridhar.
5) Add XDP (eXpress Data Path), essentially running BPF programs on RX
packets as soon as the device sees them, with the option to mirror
the packet on TX via the same interface. From Brenden Blanco and
others.
6) Allow qdisc/class stats dumps to run lockless, from Eric Dumazet.
7) Add VLAN support to b53 and bcm_sf2, from Florian Fainelli.
8) Simplify netlink conntrack entry layout, from Florian Westphal.
9) Add ipv4 forwarding support to mlxsw spectrum driver, from Ido
Schimmel, Yotam Gigi, and Jiri Pirko.
10) Add SKB array infrastructure and convert tun and macvtap over to it.
From Michael S Tsirkin and Jason Wang.
11) Support qdisc packet injection in pktgen, from John Fastabend.
12) Add neighbour monitoring framework to TIPC, from Jon Paul Maloy.
13) Add NV congestion control support to TCP, from Lawrence Brakmo.
14) Add GSO support to SCTP, from Marcelo Ricardo Leitner.
15) Allow GRO and RPS to function on macsec devices, from Paolo Abeni.
16) Support MPLS over IPV4, from Simon Horman.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1622 commits)
xgene: Fix build warning with ACPI disabled.
be2net: perform temperature query in adapter regardless of its interface state
l2tp: Correctly return -EBADF from pppol2tp_getname.
net/mlx5_core/health: Remove deprecated create_singlethread_workqueue
net: ipmr/ip6mr: update lastuse on entry change
macsec: ensure rx_sa is set when validation is disabled
tipc: dump monitor attributes
tipc: add a function to get the bearer name
tipc: get monitor threshold for the cluster
tipc: make cluster size threshold for monitoring configurable
tipc: introduce constants for tipc address validation
net: neigh: disallow transition to NUD_STALE if lladdr is unchanged in neigh_update()
MAINTAINERS: xgene: Add driver and documentation path
Documentation: dtb: xgene: Add MDIO node
dtb: xgene: Add MDIO node
drivers: net: xgene: ethtool: Use phy_ethtool_gset and sset
drivers: net: xgene: Use exported functions
drivers: net: xgene: Enable MDIO driver
drivers: net: xgene: Add backward compatibility
drivers: net: phy: xgene: Add MDIO driver
...
Pull block driver updates from Jens Axboe:
"This branch also contains core changes. I've come to the conclusion
that from 4.9 and forward, I'll be doing just a single branch. We
often have dependencies between core and drivers, and it's hard to
always split them up appropriately without pulling core into drivers
when that happens.
That said, this contains:
- separate secure erase type for the core block layer, from
Christoph.
- set of discard fixes, from Christoph.
- bio shrinking fixes from Christoph, as a followup up to the
op/flags change in the core branch.
- map and append request fixes from Christoph.
- NVMeF (NVMe over Fabrics) code from Christoph. This is pretty
exciting!
- nvme-loop fixes from Arnd.
- removal of ->driverfs_dev from Dan, after providing a
device_add_disk() helper.
- bcache fixes from Bhaktipriya and Yijing.
- cdrom subchannel read fix from Vchannaiah.
- set of lightnvm updates from Wenwei, Matias, Johannes, and Javier.
- set of drbd updates and fixes from Fabian, Lars, and Philipp.
- mg_disk error path fix from Bart.
- user notification for failed device add for loop, from Minfei.
- NVMe in general:
+ NVMe delay quirk from Guilherme.
+ SR-IOV support and command retry limits from Keith.
+ fix for memory-less NUMA node from Masayoshi.
+ use UINT_MAX for discard sectors, from Minfei.
+ cancel IO fixes from Ming.
+ don't allocate unused major, from Neil.
+ error code fixup from Dan.
+ use constants for PSDT/FUSE from James.
+ variable init fix from Jay.
+ fabrics fixes from Ming, Sagi, and Wei.
+ various fixes"
* 'for-4.8/drivers' of git://git.kernel.dk/linux-block: (115 commits)
nvme/pci: Provide SR-IOV support
nvme: initialize variable before logical OR'ing it
block: unexport various bio mapping helpers
scsi/osd: open code blk_make_request
target: stop using blk_make_request
block: simplify and export blk_rq_append_bio
block: ensure bios return from blk_get_request are properly initialized
virtio_blk: use blk_rq_map_kern
memstick: don't allow REQ_TYPE_BLOCK_PC requests
block: shrink bio size again
block: simplify and cleanup bvec pool handling
block: get rid of bio_rw and READA
block: don't ignore -EOPNOTSUPP blkdev_issue_write_same
block: introduce BLKDEV_DISCARD_ZERO to fix zeroout
NVMe: don't allocate unused nvme_major
nvme: avoid crashes when node 0 is memoryless node.
nvme: Limit command retries
loop: Make user notify for adding loop device failed
nvme-loop: fix nvme-loop Kconfig dependencies
nvmet: fix return value check in nvmet_subsys_alloc()
...
Pull core block updates from Jens Axboe:
- the big change is the cleanup from Mike Christie, cleaning up our
uses of command types and modified flags. This is what will throw
some merge conflicts
- regression fix for the above for btrfs, from Vincent
- following up to the above, better packing of struct request from
Christoph
- a 2038 fix for blktrace from Arnd
- a few trivial/spelling fixes from Bart Van Assche
- a front merge check fix from Damien, which could cause issues on
SMR drives
- Atari partition fix from Gabriel
- convert cfq to highres timers, since jiffies isn't granular enough
for some devices these days. From Jan and Jeff
- CFQ priority boost fix idle classes, from me
- cleanup series from Ming, improving our bio/bvec iteration
- a direct issue fix for blk-mq from Omar
- fix for plug merging not involving the IO scheduler, like we do for
other types of merges. From Tahsin
- expose DAX type internally and through sysfs. From Toshi and Yigal
* 'for-4.8/core' of git://git.kernel.dk/linux-block: (76 commits)
block: Fix front merge check
block: do not merge requests without consulting with io scheduler
block: Fix spelling in a source code comment
block: expose QUEUE_FLAG_DAX in sysfs
block: add QUEUE_FLAG_DAX for devices to advertise their DAX support
Btrfs: fix comparison in __btrfs_map_block()
block: atari: Return early for unsupported sector size
Doc: block: Fix a typo in queue-sysfs.txt
cfq-iosched: Charge at least 1 jiffie instead of 1 ns
cfq-iosched: Fix regression in bonnie++ rewrite performance
cfq-iosched: Convert slice_resid from u64 to s64
block: Convert fifo_time from ulong to u64
blktrace: avoid using timespec
block/blk-cgroup.c: Declare local symbols static
block/bio-integrity.c: Add #include "blk.h"
block/partition-generic.c: Remove a set-but-not-used variable
block: bio: kill BIO_MAX_SIZE
cfq-iosched: temporarily boost queue priority for idle classes
block: drbd: avoid to use BIO_MAX_SIZE
block: bio: remove BIO_MAX_SECTORS
...
Major changes:
wl18xx
* add initial mesh support
bcma
* serial flash support on non-MIPS SoCs
ath10k
* enable support for QCA9888
* disable wake_tx_queue() mac80211 op for older devices to workaround
throughput regression
ath9k
* implement temperature compensation support for AR9003+
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
iQEcBAABAgAGBQJXkilmAAoJEG4XJFUm622bWa0H/140nogmko+U1QXTSzVcNeJM
dNPwYvkrDu5PPjWL0PekUXT8WVPk6P/SD7Sa93822BQFyR1i5QEWnXX7NMMw8WwW
f7uhCdACHoVwIktVj+CTWmat9viknyed2/B9Qbi07tfuhDMKdfi76wHf4frPW5yP
wygslKYgyV2Af/18puEcfLeBHDYI61AA1NEO69uPIx5WdT/71YrlwssnH8/xtSlV
YElYyApxv7GUVx6Irj6d/YyilvElDbzQlZSLW5zfO2664LW63MGpCY5cnP7K5Nfo
pGNVj1f3FpYK8ZncHAlNUH8bJj9snNn7RFYSo//6QAoWv7t4M2T7AbdYhNHK/ko=
=a9OQ
-----END PGP SIGNATURE-----
Merge tag 'wireless-drivers-next-for-davem-2016-07-22' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
pull-request: wireless-drivers-next 2016-07-22
I'm sick so I have to keep this short, but here's the last pull request
to net-next. This time there's a trivial conflict with mtd tree:
http://lkml.kernel.org/g/20160720123133.44dab209@canb.auug.org.au
We concluded with Brian (CCed) that it's best that we ask Linus to fix
this. The patches have been in linux-next for a couple of days. This
time I haven't done any merge tests so I don't know if there are any
other conflicts etc.
Please let me know if there are any problems.
wireless-drivers-next patches for 4.8
Major changes:
wl18xx
* add initial mesh support
bcma
* serial flash support on non-MIPS SoCs
ath10k
* enable support for QCA9888
* disable wake_tx_queue() mac80211 op for older devices to workaround
throughput regression
ath9k
* implement temperature compensation support for AR9003+
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Rafał Miłecki