Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230713104422.29222-1-frank.li@vivo.com
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230707040622.78174-10-frank.li@vivo.com
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230707040622.78174-8-frank.li@vivo.com
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230707040622.78174-7-frank.li@vivo.com
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230707040622.78174-6-frank.li@vivo.com
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230707040622.78174-5-frank.li@vivo.com
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230707040622.78174-4-frank.li@vivo.com
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230707040622.78174-2-frank.li@vivo.com
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230707040622.78174-1-frank.li@vivo.com
brcmnand controller can only access the flash spare area up to certain
bytes based on the ECC level. It can be less than the actual flash spare
area size. For example, for many NAND chip supporting ECC BCH-8, it has
226 bytes spare area. But controller can only uses 218 bytes. So brcmand
driver overrides the mtd oobsize with the controller's accessible spare
area size. When the nand base driver utilizes the nand_device object, it
resets the oobsize back to the actual flash spare aprea size from
nand_memory_organization structure and controller may not able to access
all the oob area as mtd advises.
This change fixes the issue by overriding the oobsize in the
nand_memory_organization structure to the controller's accessible spare
area size.
Fixes: a7ab085d7c ("mtd: rawnand: Initialize the nand_device object")
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230706182909.79151-6-william.zhang@broadcom.com
When the oob buffer length is not in multiple of words, the oob write
function does out-of-bounds read on the oob source buffer at the last
iteration. Fix that by always checking length limit on the oob buffer
read and fill with 0xff when reaching the end of the buffer to the oob
registers.
Fixes: 27c5b17cd1 ("mtd: nand: add NAND driver "library" for Broadcom STB NAND controller")
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230706182909.79151-5-william.zhang@broadcom.com
If system is busy during the command status polling function, the driver
may not get the chance to poll the status register till the end of time
out and return the premature status. Do a final check after time out
happens to ensure reading the correct status.
Fixes: 9d2ee0a60b ("mtd: nand: brcmnand: Check flash #WP pin status before nand erase/program")
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230706182909.79151-3-william.zhang@broadcom.com
v7.2 controller has different ECC level field size and shift in the acc
control register than its predecessor and successor controller. It needs
to be set specifically.
Fixes: decba6d478 ("mtd: brcmnand: Add v7.2 controller support")
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230706182909.79151-2-william.zhang@broadcom.com
NAND core API already has functions to send NAND_CMD_STATUS and leave
status checking mode by sending NAND_CMD_READ0, so use both of them
instead of direct access to the controller registers.
Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230705104403.696680-3-AVKrasnov@sberdevices.ru
Due to lack of maintenance and stall of development for a few years now,
and since no new features will ever be added upstream, remove support
for OX810 and OX820 nand.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230630-topic-oxnas-upstream-remove-v2-5-fb6ab3dea87c@linaro.org
This adds support for ESMT F50D2G41KA. This is 2Gb SLC NAND flash
with 8b/512b on-die ECC capability.
Signed-off-by: Sridharan S N <quic_sridsn@quicinc.com>
Signed-off-by: Md Sadre Alam <quic_mdalam@quicinc.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230623045757.30055-3-quic_sridsn@quicinc.com
Add support for:
GD5F1GQ5RExxH
GD5F1GQ4RExxH
Both are 1Gb SLC NAND flash with 4b/512b on-die ECC capability and has
2K + 64B PageSize.
Signed-off-by: Sridharan S N <quic_sridsn@quicinc.com>
Signed-off-by: Md Sadre Alam <quic_mdalam@quicinc.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230623045757.30055-2-quic_sridsn@quicinc.com
* otp:
- Put factory OTP/NVRAM into the entropy pool
- Clean up on error in mtd_otp_nvmem_add()
MTD devices changes:
* sm_ftl: Fix typos in comments
* Use SPDX license headers
* pismo: Switch back to use i2c_driver's .probe()
* mtdpart: Drop useless LIST_HEAD
* st_spi_fsm: Use the devm_clk_get_enabled() helper function
DT binding changes:
* partitions:
- Include TP-Link SafeLoader in allowed list
- Add missing type for "linux,rootfs"
* Extend the nand node names filter
* Create a file for raw NAND chip properties
* Mark nand-ecc-placement deprecated
* Describe nand-ecc-mode
* Prevent NAND chip unevaluated properties in all NAND bindings with a NAND chip
reference.
* Qcom: Fix a property position
* Marvell: Convert to YAML DT schema
Raw NAND chip drivers changes:
* Macronix: OTP access for MX30LFxG18AC
* Add basic Sandisk manufacturer ops
* Add support for Sandisk SDTNQGAMA
Raw NAND controller driver changes:
* Meson:
- Replace integer consts with proper defines
- Allow waiting w/o wired ready/busy pin
- Check buffer length validity
- Fix unaligned DMA buffers handling
- dt-bindings: Fix 'nand-rb' property
* Arasan: Revert "mtd: rawnand: arasan: Prevent an unsupported configuration"
as this limitation is no longer true thanks to the recent efforts in improving
the clocks support in this driver
SPI-NAND changes:
* Gigadevice: add support for GD5F2GQ5xExxH
* Macronix: Add support for serial NAND flashes
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Merge tag 'mtd/for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd updates from
"Core MTD changes:
- otp:
- Put factory OTP/NVRAM into the entropy pool
- Clean up on error in mtd_otp_nvmem_add()
MTD devices changes:
- sm_ftl: Fix typos in comments
- Use SPDX license headers
- pismo: Switch back to use i2c_driver's .probe()
- mtdpart: Drop useless LIST_HEAD
- st_spi_fsm: Use the devm_clk_get_enabled() helper function
DT binding changes:
- partitions:
- Include TP-Link SafeLoader in allowed list
- Add missing type for "linux,rootfs"
- Extend the nand node names filter
- Create a file for raw NAND chip properties
- Mark nand-ecc-placement deprecated
- Describe nand-ecc-mode
- Prevent NAND chip unevaluated properties in all NAND bindings with
a NAND chip reference.
- Qcom: Fix a property position
- Marvell: Convert to YAML DT schema
Raw NAND chip drivers changes:
- Macronix: OTP access for MX30LFxG18AC
- Add basic Sandisk manufacturer ops
- Add support for Sandisk SDTNQGAMA
Raw NAND controller driver changes:
- Meson:
- Replace integer consts with proper defines
- Allow waiting w/o wired ready/busy pin
- Check buffer length validity
- Fix unaligned DMA buffers handling
- dt-bindings: Fix 'nand-rb' property
- Arasan: Revert "mtd: rawnand: arasan: Prevent an unsupported
configuration" as this limitation is no longer true thanks to the
recent efforts in improving the clocks support in this driver
SPI-NAND changes:
- Gigadevice: add support for GD5F2GQ5xExxH
- Macronix: Add support for serial NAND flashes"
* tag 'mtd/for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (38 commits)
dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
dt-bindings: mtd: ti,am654: Prevent unevaluated properties
dt-bindings: mtd: mediatek: Prevent NAND chip unevaluated properties
dt-bindings: mtd: mediatek: Reference raw-nand-chip.yaml
dt-bindings: mtd: stm32: Prevent NAND chip unevaluated properties
dt-bindings: mtd: rockchip: Prevent NAND chip unevaluated properties
dt-bindings: mtd: intel: Prevent NAND chip unevaluated properties
dt-bindings: mtd: denali: Prevent NAND chip unevaluated properties
dt-bindings: mtd: brcmnand: Prevent NAND chip unevaluated properties
dt-bindings: mtd: meson: Prevent NAND chip unevaluated properties
dt-bindings: mtd: sunxi: Prevent NAND chip unevaluated properties
dt-bindings: mtd: ingenic: Prevent NAND chip unevaluated properties
dt-bindings: mtd: qcom: Prevent NAND chip unevaluated properties
dt-bindings: mtd: qcom: Fix a property position
dt-bindings: mtd: Describe nand-ecc-mode
dt-bindings: mtd: Mark nand-ecc-placement deprecated
dt-bindings: mtd: Create a file for raw NAND chip properties
dt-bindings: mtd: Accept nand related node names
mtd: sm_ftl: Fix typos in comments
mtd: otp: clean up on error in mtd_otp_nvmem_add()
...
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Merge tag 'for-6.5/block-2023-06-23' of git://git.kernel.dk/linux
Pull block updates from Jens Axboe:
- NVMe pull request via Keith:
- Various cleanups all around (Irvin, Chaitanya, Christophe)
- Better struct packing (Christophe JAILLET)
- Reduce controller error logs for optional commands (Keith)
- Support for >=64KiB block sizes (Daniel Gomez)
- Fabrics fixes and code organization (Max, Chaitanya, Daniel
Wagner)
- bcache updates via Coly:
- Fix a race at init time (Mingzhe Zou)
- Misc fixes and cleanups (Andrea, Thomas, Zheng, Ye)
- use page pinning in the block layer for dio (David)
- convert old block dio code to page pinning (David, Christoph)
- cleanups for pktcdvd (Andy)
- cleanups for rnbd (Guoqing)
- use the unchecked __bio_add_page() for the initial single page
additions (Johannes)
- fix overflows in the Amiga partition handling code (Michael)
- improve mq-deadline zoned device support (Bart)
- keep passthrough requests out of the IO schedulers (Christoph, Ming)
- improve support for flush requests, making them less special to deal
with (Christoph)
- add bdev holder ops and shutdown methods (Christoph)
- fix the name_to_dev_t() situation and use cases (Christoph)
- decouple the block open flags from fmode_t (Christoph)
- ublk updates and cleanups, including adding user copy support (Ming)
- BFQ sanity checking (Bart)
- convert brd from radix to xarray (Pankaj)
- constify various structures (Thomas, Ivan)
- more fine grained persistent reservation ioctl capability checks
(Jingbo)
- misc fixes and cleanups (Arnd, Azeem, Demi, Ed, Hengqi, Hou, Jan,
Jordy, Li, Min, Yu, Zhong, Waiman)
* tag 'for-6.5/block-2023-06-23' of git://git.kernel.dk/linux: (266 commits)
scsi/sg: don't grab scsi host module reference
ext4: Fix warning in blkdev_put()
block: don't return -EINVAL for not found names in devt_from_devname
cdrom: Fix spectre-v1 gadget
block: Improve kernel-doc headers
blk-mq: don't insert passthrough request into sw queue
bsg: make bsg_class a static const structure
ublk: make ublk_chr_class a static const structure
aoe: make aoe_class a static const structure
block/rnbd: make all 'class' structures const
block: fix the exclusive open mask in disk_scan_partitions
block: add overflow checks for Amiga partition support
block: change all __u32 annotations to __be32 in affs_hardblocks.h
block: fix signed int overflow in Amiga partition support
block: add capacity validation in bdev_add_partition()
block: fine-granular CAP_SYS_ADMIN for Persistent Reservation
block: disallow Persistent Reservation on partitions
reiserfs: fix blkdev_put() warning from release_journal_dev()
block: fix wrong mode for blkdev_get_by_dev() from disk_scan_partitions()
block: document the holder argument to blkdev_get_by_path
...
Smatch complains that these error paths are missing cleanup:
drivers/mtd/mtdcore.c:983 mtd_otp_nvmem_add()
warn: missing unwind goto?
This needs to call nvmem_unregister(mtd->otp_user_nvmem) before
returning.
Fixes: 3b270fac84 ("mtd: otp: Put factory OTP/NVRAM into the entropy pool")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/fe7ef901-9571-4c6e-a40e-449046efe2c6@moroto.mountain
After commit b8a1a4cd5a ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
commit 03c835f498 ("i2c: Switch .probe() to not take an id parameter")
convert back to (the new) .probe() to be able to eventually drop
.probe_new() from struct i2c_driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230611204327.828122-1-u.kleine-koenig@pengutronix.de
Meson NAND controller requires 8 bytes alignment for DMA addresses,
otherwise it "aligns" passed address by itself thus accessing invalid
location in the provided buffer. This patch makes unaligned buffers to
be reallocated to become valid.
Fixes: 8fae856c53 ("mtd: rawnand: meson: add support for Amlogic NAND flash controller")
Cc: <Stable@vger.kernel.org>
Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230615080815.3291006-1-AVKrasnov@sberdevices.ru
Sandisk SDTNQGAMA is a 8GB size, 3.3V 8 bit chip with 16KB page size,
1KB write size and 40 bit ecc support
Co-developed-by: Paweł Jarosz <paweljarosz3691@gmail.com>
Signed-off-by: Paweł Jarosz <paweljarosz3691@gmail.com>
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/98811c98-4681-6ddc-8287-bd9b77559c51@gmail.com
The only overlap between the block open flags mapped into the fmode_t and
other uses of fmode_t are FMODE_READ and FMODE_WRITE. Define a new
blk_mode_t instead for use in blkdev_get_by_{dev,path}, ->open and
->ioctl and stop abusing fmode_t.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jack Wang <jinpu.wang@ionos.com> [rnbd]
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230608110258.189493-28-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Instead of propagating the fmode_t, just use a bool to track if a mtd
block device was opened for writing.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Acked-by: Richard Weinberger <richard@nod.at>
Link: https://lore.kernel.org/r/20230608110258.189493-23-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The current interface for exclusive opens is rather confusing as it
requires both the FMODE_EXCL flag and a holder. Remove the need to pass
FMODE_EXCL and just key off the exclusive open off a non-NULL holder.
For blkdev_put this requires adding the holder argument, which provides
better debug checking that only the holder actually releases the hold,
but at the same time allows removing the now superfluous mode argument.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Acked-by: David Sterba <dsterba@suse.com> [btrfs]
Acked-by: Jack Wang <jinpu.wang@ionos.com> [rnbd]
Link: https://lore.kernel.org/r/20230608110258.189493-16-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The mode argument to the ->release block_device_operation is never used,
so remove it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Acked-by: Jack Wang <jinpu.wang@ionos.com> [rnbd]
Link: https://lore.kernel.org/r/20230608110258.189493-10-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
->open is only called on the whole device. Make that explicit by
passing a gendisk instead of the block_device.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Acked-by: Jack Wang <jinpu.wang@ionos.com> [rnbd]
Link: https://lore.kernel.org/r/20230608110258.189493-9-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The factory OTP, if supported, contains factory-programmed
information such as typically the serial number or production
week for the chip.
As this is device-unique information, submit it into the
system entropy pool.
This does not count as improvement of the entropy as such
but in practice it makes it a bit more random to mix in these
numbers.
Cc: Michael Walle <michael@walle.cc>
Acked-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230606142931.3721374-1-linus.walleij@linaro.org
Some of the files in mtd/chips do not have a SPDX license
header, presumably because the text string "GPL'd" didn't
parse with Thomas rulesets for magic license tagging.
Fix this, the code is initially from RedHat which clearly
targeted the Linux kernel and intended it to be GPLv2.
In any case the original author appears to be David
Woodhouse who can then confirm this.
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230603185200.3571174-1-linus.walleij@linaro.org
Meson NAND controller has limited buffer length, so check it before
command execution to avoid length trim. Also check MTD write size on
chip attach.
Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230609112840.2325455-1-AVKrasnov@sberdevices.ru
MX31LF2GE4BC and MX31UF2GE4BC are Macroninx SPI NAND flash
with 8-bit on-die ECC.
Validated via normal(default) and QUAD mode by read ,read back,
on Xilinx Zynq PicoZed FPGA which include Macronix
SPI Host(drivers/spi/spi-mxic.c)
Signed-off-by: JaimeLiao <jaimeliao.tw@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230608052114.20454-1-jaimeliao.tw@gmail.com
If there is no wired ready/busy pin, classic way to wait for command
completion is to use function 'nand_soft_waitrdy()'. Meson NAND has
special command which allows to wait for NAND_STATUS_READY bit without
reading status in a software loop (as 'nand_soft_waitrdy()' does). To
use it send this command along with NAND_CMD_STATUS, then wait for an
interrupt, and after interrupt send NAND_CMD_READ0. So this feature
allows to use interrupt driven waiting without wired ready/busy pin.
Suggested-by: Liang Yang <liang.yang@amlogic.com>
Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230608044728.1328506-3-AVKrasnov@sberdevices.ru
Add defines for column address. It makes driver more readable, because
bitwise OR with 0 looks useless.
Suggested-by: Liang Yang <liang.yang@amlogic.com>
Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230608043644.1271186-1-AVKrasnov@sberdevices.ru
This reverts commit fc9e18f9e9.
This patch was a work around to fix timeout issue while operating in NVDDR
mode with software ECC engine. This patch prevents the Arasan NAND driver
from operating in NVDDR mode with software ECC engine resulting in a
significant performance degradation with SW-ECC.
'commit 7499bfeedb ("mtd: rawnand: arasan: Update NAND bus clock instead
of system clock")' and 'commit e16eceea86 ("mtd: rawnand: arasan: Fix
clock rate in NV-DDR")'
fixes the timeout issue in NVDDR mode with SW-ECC so, reverting the changes
as this work around is no longer required.
Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230607053936.14306-1-amit.kumar-mahapatra@amd.com
early_lookup_bdev is supposed to only be called from the early boot
code, but mdtblock_early_get_bdev is called as a general fallback when
lookup_bdev fails, which is problematic because early_lookup_bdev
bypasses all normal path based permission checking, and might cause
problems with certain container environments renaming devices.
Switch to only call early_lookup_bdev when block2mtd is built-in and the
system state in not running yet.
Note that this strictly speaking changes the kernel ABI as the PARTUUID=
and PARTLABEL= style syntax is now not available during a running
systems. They never were intended for that, but this breaks things
we'll have to figure out a way to make them available again. But if
avoidable in any way I'd rather avoid that.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20230531125535.676098-24-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Simplify add_device a bit by splitting out the cumbersome early boot logic
into a separate helper.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20230531125535.676098-23-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
name_to_dev_t has a very misleading name, that doesn't make clear
it should only be used by the early init code, and also has a bad
calling convention that doesn't allow returning different kinds of
errors. Rename it to early_lookup_bdev to make the use case clear,
and return an errno, where -EINVAL means the string could not be
parsed, and -ENODEV means it the string was valid, but there was
no device found for it.
Also stub out the whole call for !CONFIG_BLOCK as all the non-block
root cases are always covered in the caller.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230531125535.676098-14-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Add a new blk_holder_ops structure, which is passed to blkdev_get_by_* and
installed in the block_device for exclusive claims. It will be used to
allow the block layer to call back into the user of the block device for
thing like notification of a removed device or a device resize.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Link: https://lore.kernel.org/r/20230601094459.1350643-10-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
marvell_nfc_setup_interface() uses the frequency retrieved from the
clock associated with the nand interface to determine the timings that
will be used. By changing the NAND frequency select without reflecting
this in the clock configuration this means that the timings calculated
don't correctly meet the requirements of the NAND chip. This hasn't been
an issue up to now because of a different bug that was stopping the
timings being updated after they were initially set.
Fixes: b25251414f ("mtd: rawnand: marvell: Stop implementing ->select_chip()")
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230525003154.2303012-2-chris.packham@alliedtelesis.co.nz
