Intel Comet Lake-H PCH has the same SPI serial flash controller as Comet
Lake-LP. Add Comet Lake-H PCI ID to the driver list of supported devices.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Print identifying information about struct device.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Constify the data to write to the Status Register.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
In case the write of the first byte failed, retlen was incorrectly
incremented to *retlen += actual; on the exit path. retlen should be
incremented when actual data was written to the flash.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Drop the error messages from the callers, since the callees
already print an error message in case of failure.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Let the callers pass the pointer to the DMA-able buffer where
the value of the Configuration Register will be written. This way we
avoid the casts between int and u8, which can be confusing.
Callers stop compare the return value of spi_nor_read_cr() with negative,
spi_nor_read_cr() returns 0 on success and -errno otherwise.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Let the callers pass the pointer to the DMA-able buffer where
the value of the Flag Status Register will be written. This way we
avoid the casts between int and u8, which can be confusing.
Caller stops compare the return value of spi_nor_read_fsr() with negative,
spi_nor_read_fsr() returns 0 on success and -errno otherwise.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Let the callers pass the pointer to the DMA-able buffer where
the value of the Status Register will be written. This way we
avoid the casts between int and u8, which can be confusing.
Callers stop compare the return value of spi_nor_read_sr() with negative,
spi_nor_read_sr() returns 0 on success and -errno otherwise.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Do not overwrite the error numbers received the Register Operations
methods.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
spi_mem_exec_op()
nor->controller_ops->write_reg()
nor->controller_ops->read_reg()
spi_nor_wait_till_ready()
Return 0 on success, -errno otherwise.
Stop compare with negative and compare with zero in all the register
operations methods.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Group all register methods up in the file, to avoid forward
declarations.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Two new lines, one after another, drop one.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
All the core functions should begin with "spi_nor_".
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
n_tx was never used, drop it. Replace 'const u8 *txbuf' with 'u8 opcode',
to comply with the SPI NOR int (*read_reg)() method. The 'const'
qualifier has no meaning for parameters passed by value, drop it.
Going furher, the opcode was passed to cqspi_calc_rdreg() and never used,
drop it.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Move all SPI NOR controller driver specific ops in a dedicated
structure. 'struct spi_nor' becomes lighter.
Use size_t for lengths in 'int (*write_reg)()' and 'int (*read_reg)()'.
Rename wite/read_buf to buf, the name of the functions are
suggestive enough. Constify buf in int (*write_reg). Comply with these
changes in the SPI NOR controller drivers.
Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
The pointer to 'struct spi_nor' is kzalloc'ed above in the code.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Some flash controllers don't have a software sequencer. Avoid
configuring the register addresses for it, and double check
everywhere that its not accidentally trying to be used.
Every use of `sregs` is now guarded by a check of `sregs` or
`swseq_reg`. The check might be done in the calling function.
Signed-off-by: Jethro Beekman <jethro@fortanix.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Commit 7e534323c4 ("mtd: rawnand: Pass a nand_chip object to
chip->read_xxx() hooks") modified the prototype of the struct nand_chip
read_buf function pointer. In the au1550nd driver we have 2
implementations of read_buf. The previously mentioned commit modified
the au_read_buf() implementation to match the function pointer, but not
au_read_buf16(). This results in a compiler warning for MIPS
db1xxx_defconfig builds:
drivers/mtd/nand/raw/au1550nd.c:443:57:
warning: pointer type mismatch in conditional expression
Fix this by updating the prototype of au_read_buf16() to take a struct
nand_chip pointer as its first argument, as is expected after commit
7e534323c4 ("mtd: rawnand: Pass a nand_chip object to chip->read_xxx()
hooks").
Note that this shouldn't have caused any functional issues at runtime,
since the offset of the struct mtd_info within struct nand_chip is 0
making mtd_to_nand() effectively a type-cast.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 7e534323c4 ("mtd: rawnand: Pass a nand_chip object to chip->read_xxx() hooks")
Cc: stable@vger.kernel.org # v4.20+
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
- boot_mem_map is removed, providing a nice cleanup made possible by the
recent removal of bootmem.
- Some fixes to atomics, in general providing compiler barriers for
smp_mb__{before,after}_atomic plus fixes specific to Loongson CPUs or
MIPS32 systems using cmpxchg64().
- Conversion to the new generic VDSO infrastructure courtesy of Vincenzo
Frascino.
- Removal of undefined behavior in set_io_port_base(), fixing the
behavior of some MIPS kernel configurations when built with recent
clang versions.
- Initial MIPS32 huge page support, functional on at least Ingenic SoCs.
- pte_special() is now supported for some configurations, allowing among
other things generic fast GUP to be used.
- Miscellaneous fixes & cleanups.
And platform specific changes:
- Major improvements to Ingenic SoC support from Paul Cercueil, mostly
enabled by the inclusion of the new TCU (timer-counter unit) drivers
he's spent a very patient year or so working on. Plus some fixes for
X1000 SoCs from Zhou Yanjie.
- Netgear R6200 v1 systems are now supported by the bcm47xx platform.
- DT updates for BMIPS, Lantiq & Microsemi Ocelot systems.
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Merge tag 'mips_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from Paul Burton:
"Main MIPS changes:
- boot_mem_map is removed, providing a nice cleanup made possible by
the recent removal of bootmem.
- Some fixes to atomics, in general providing compiler barriers for
smp_mb__{before,after}_atomic plus fixes specific to Loongson CPUs
or MIPS32 systems using cmpxchg64().
- Conversion to the new generic VDSO infrastructure courtesy of
Vincenzo Frascino.
- Removal of undefined behavior in set_io_port_base(), fixing the
behavior of some MIPS kernel configurations when built with recent
clang versions.
- Initial MIPS32 huge page support, functional on at least Ingenic
SoCs.
- pte_special() is now supported for some configurations, allowing
among other things generic fast GUP to be used.
- Miscellaneous fixes & cleanups.
And platform specific changes:
- Major improvements to Ingenic SoC support from Paul Cercueil,
mostly enabled by the inclusion of the new TCU (timer-counter unit)
drivers he's spent a very patient year or so working on. Plus some
fixes for X1000 SoCs from Zhou Yanjie.
- Netgear R6200 v1 systems are now supported by the bcm47xx platform.
- DT updates for BMIPS, Lantiq & Microsemi Ocelot systems"
* tag 'mips_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (89 commits)
MIPS: Detect bad _PFN_SHIFT values
MIPS: Disable pte_special() for MIPS32 with RiXi
MIPS: ralink: deactivate PCI support for SOC_MT7621
mips: compat: vdso: Use legacy syscalls as fallback
MIPS: Drop Loongson _CACHE_* definitions
MIPS: tlbex: Remove cpu_has_local_ebase
MIPS: tlbex: Simplify r3k check
MIPS: Select R3k-style TLB in Kconfig
MIPS: PCI: refactor ioc3 special handling
mips: remove ioremap_cachable
mips/atomic: Fix smp_mb__{before,after}_atomic()
mips/atomic: Fix loongson_llsc_mb() wreckage
mips/atomic: Fix cmpxchg64 barriers
MIPS: Octeon: remove duplicated include from dma-octeon.c
firmware: bcm47xx_nvram: Allow COMPILE_TEST
firmware: bcm47xx_nvram: Correct size_t printf format
MIPS: Treat Loongson Extensions as ASEs
MIPS: Remove dev_err() usage after platform_get_irq()
MIPS: dts: mscc: describe the PTP ready interrupt
MIPS: dts: mscc: describe the PTP register range
...
UBI:
- Be less stupid when placing a fastmap anchor
- Try harder to get an empty PEB in case of contention
- Make ubiblock to warn if image is not a multiple of 512
UBIFS:
- Various fixes in error paths
JFFS2:
- Various fixes in error paths
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Merge tag 'upstream-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs
Pull UBI, UBIFS and JFFS2 updates from Richard Weinberger:
"UBI:
- Be less stupid when placing a fastmap anchor
- Try harder to get an empty PEB in case of contention
- Make ubiblock to warn if image is not a multiple of 512
UBIFS:
- Various fixes in error paths
JFFS2:
- Various fixes in error paths"
* tag 'upstream-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
jffs2: Fix memory leak in jffs2_scan_eraseblock() error path
jffs2: Remove jffs2_gc_fetch_page and jffs2_gc_release_page
jffs2: Fix possible null-pointer dereferences in jffs2_add_frag_to_fragtree()
ubi: block: Warn if volume size is not multiple of 512
ubifs: Fix memory leak bug in alloc_ubifs_info() error path
ubifs: Fix memory leak in __ubifs_node_verify_hmac error path
ubifs: Fix memory leak in read_znode() error path
ubi: ubi_wl_get_peb: Increase the number of attempts while getting PEB
ubi: Don't do anchor move within fastmap area
ubifs: Remove redundant assignment to pointer fname
MTD core changes:
- add debugfs nodes for querying the flash name and id
- mtd parser reorganization
SPI NOR core changes:
- always use bounce buffer for register read/writes
- move m25p80 code in spi-nor.c
- rework hwcaps selection for the spi-mem case
- rework the core in order to move the manufacturer specific code
out of it:
- regroup flash parameters in 'struct spi_nor_flash_parameter'
- add default_init() and post_sfdp() hooks to tweak the flash
parameters
- introduce the ->set_4byte(), ->convert_addr() and ->setup()
methods, to deal with manufacturer specific code
- rework the SPI NOR lock/unlock logic
- fix an error code in spi_nor_read_raw()
- fix a memory leak bug
- enable the debugfs for the partname and partid
- add support for few flashes
SPI NOR controller drivers changes:
- intel-spi:
- Whitelist 4B read commands
- Add support for Intel Tiger Lake SPI serial flash
- aspeed-smc: Add of_node_put()
- hisi-sfc: Add of_node_put()
- cadence-quadspi: Fix QSPI RCU Schedule Stall
NAND core:
- Fixing typos
- Adding missing of_node_put() in various drivers
Raw NAND controller drivers:
- Macronix: new controller driver
- Omap2: Fixing the number of bitflips returned
- Brcmnand: Fix a pointer not iterating over all the page chunks
- W90x900: Driver removed
- Onenand: Fix a memory leak
- Sharpsl: Missing include guard
- STM32: Avoid warnings when building with W=1
- Ingenic: Fix a coccinelle warning
- r852: Call a helper to simplify the code
CFI core:
- Kill useless initializer in mtd_do_chip_probe()
- Fix a rare write failure seen on some cfi_cmdset_0002 compliant
Parallel NORs
- Bunch of cleanups for cfi_cmdset_0002 driver's write functions by
Tokunori Ikegami <ikegami.t@gmail.com>
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Merge tag 'mtd/for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD updates from Richard Weinberger:
"MTD core changes:
- add debugfs nodes for querying the flash name and id
- mtd parser reorganization
SPI NOR core changes:
- always use bounce buffer for register read/writes
- move m25p80 code in spi-nor.c
- rework hwcaps selection for the spi-mem case
- rework the core in order to move the manufacturer specific code out
of it:
- regroup flash parameters in 'struct spi_nor_flash_parameter'
- add default_init() and post_sfdp() hooks to tweak the flash
parameters
- introduce the ->set_4byte(), ->convert_addr() and ->setup()
methods, to deal with manufacturer specific code
- rework the SPI NOR lock/unlock logic
- fix an error code in spi_nor_read_raw()
- fix a memory leak bug
- enable the debugfs for the partname and partid
- add support for few flashes
SPI NOR controller drivers changes:
- intel-spi:
- Whitelist 4B read commands
- Add support for Intel Tiger Lake SPI serial flash
- aspeed-smc: Add of_node_put()
- hisi-sfc: add of_node_put()
- cadence-quadspi: Fix QSPI RCU Schedule Stall
NAND core:
- Fixing typos
- Adding missing of_node_put() in various drivers
Raw NAND controller drivers:
- Macronix: new controller driver
- Omap2: fix the number of bitflips returned
- Brcmnand: fix a pointer not iterating over all the page chunks
- W90x900: driver removed
- Onenand: fix a memory leak
- Sharpsl: missing include guard
- STM32: avoid warnings when building with W=1
- Ingenic: fix a coccinelle warning
- r852: call a helper to simplify the code
CFI core:
- Kill useless initializer in mtd_do_chip_probe()
- Fix a rare write failure seen on some cfi_cmdset_0002 compliant
Parallel NORs
- Bunch of cleanups for cfi_cmdset_0002 driver's write functions by
Tokunori Ikegami"
* tag 'mtd/for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (77 commits)
mtd: pmc551: Remove set but not used variable 'soff_lo'
mtd: cfi_cmdset_0002: Fix do_erase_chip() to get chip as erasing mode
mtd: sm_ftl: Fix memory leak in sm_init_zone() error path
mtd: parsers: Move CMDLINE parser
mtd: parsers: Move OF parser
mtd: parsers: Move BCM63xx parser
mtd: parsers: Move BCM47xx parser
mtd: parsers: Move TI AR7 parser
mtd: pismo: Simplify getting the adapter of a client
mtd: phram: Module parameters add writable permissions
mtd: pxa2xx: Use ioremap_cache insted of ioremap_cached
mtd: spi-nor: Rename "n25q512a" to "mt25qu512a (n25q512a)"
mtd: spi-nor: Add support for mt35xu02g
mtd: rawnand: omap2: Fix number of bitflips reporting with ELM
mtd: rawnand: brcmnand: Fix ecc chunk calculation for erased page bitfips
mtd: spi-nor: remove superfluous pass of nor->info->sector_size
mtd: spi-nor: enable the debugfs for the partname and partid
mtd: mtdcore: add debugfs nodes for querying the flash name and id
mtd: spi-nor: hisi-sfc: Add of_node_put() before break
mtd: spi-nor: aspeed-smc: Add of_node_put()
...
Pull misc mount API conversions from Al Viro:
"Conversions to new API for shmem and friends and for mount_mtd()-using
filesystems.
As for the rest of the mount API conversions in -next, some of them
belong in the individual trees (e.g. binderfs one should definitely go
through android folks, after getting redone on top of their changes).
I'm going to drop those and send the rest (trivial ones + stuff ACKed
by maintainers) in a separate series - by that point they are
independent from each other.
Some stuff has already migrated into individual trees (NFS conversion,
for example, or FUSE stuff, etc.); those presumably will go through
the regular merges from corresponding trees."
* 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
vfs: Make fs_parse() handle fs_param_is_fd-type params better
vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API
shmem_parse_one(): switch to use of fs_parse()
shmem_parse_options(): take handling a single option into a helper
shmem_parse_options(): don't bother with mpol in separate variable
shmem_parse_options(): use a separate structure to keep the results
make shmem_fill_super() static
make ramfs_fill_super() static
devtmpfs: don't mix {ramfs,shmem}_fill_super() with mount_single()
vfs: Convert squashfs to use the new mount API
mtd: Kill mount_mtd()
vfs: Convert jffs2 to use the new mount API
vfs: Convert cramfs to use the new mount API
vfs: Convert romfs to use the new mount API
vfs: Add a single-or-reconfig keying to vfs_get_super()
Pull vfs mount API infrastructure updates from Al Viro:
"Infrastructure bits of mount API conversions.
The rest is more of per-filesystem updates and that will happen
in separate pull requests"
* 'work.mount-base' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
mtd: Provide fs_context-aware mount_mtd() replacement
vfs: Create fs_context-aware mount_bdev() replacement
new helper: get_tree_keyed()
vfs: set fs_context::user_ns for reconfigure
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/mtd/devices/pmc551.c: In function pmc551_erase:
drivers/mtd/devices/pmc551.c:142:15: warning: variable soff_lo set but not used [-Wunused-but-set-variable]
drivers/mtd/devices/pmc551.c: In function pmc551_read:
drivers/mtd/devices/pmc551.c:232:15: warning: variable soff_lo set but not used [-Wunused-but-set-variable]
drivers/mtd/devices/pmc551.c: In function pmc551_write:
drivers/mtd/devices/pmc551.c:289:15: warning: variable soff_lo set but not used [-Wunused-but-set-variable]
It is not used since commit cdf0a7d169 ("[MTD]
pmc551 whitespace cleanup")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
The chip state is set to erasing by the function after getting chip.
So it should be to get chip as erasing mode at first.
But previously it was to get chip as writing mode then fix as erasing.
Signed-off-by: Tokunori Ikegami <ikegami.t@gmail.com>
Cc: linux-mtd@lists.infradead.org
Signed-off-by: Richard Weinberger <richard@nod.at>
In sm_init_zone(), 'zone->lba_to_phys_table' is allocated through
kmalloc_array() and 'zone->free_sectors' is allocated in kfifo_alloc()
respectively. However, they are not deallocated in the following execution
if sm_read_sector() fails, leading to memory leaks. To fix this issue, free
them before returning -EIO.
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Signed-off-by: Richard Weinberger <richard@nod.at>
This moves the CMDLINE partition parser down into the
parser subdirectory. No functional change.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
This moves the OF/device tree partition parser down into the
parser subdirectory. No functional change.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
This moves the BCM63xx partition parser down into the
parser subdirectory. No functional change.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
This moves the BCM47xx partition parser down into the
parser subdirectory. No functional change.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
This moves the TI AR7 partition parser down into the
parser subdirectory. No functional change.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
We have a dedicated pointer for that, so use it. Much easier to read and
less computation involved.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
The phram code implements managing multiple devices through a linked
list.
However, due to the module parameter permission of 0, the
/sys/module/phram/parameters/phram interface is missing.
The command line arguments in insmod can only create one device.
Therefore, add writable permissions to the module parameters, create
/sys/module/phram/parameters/phram interface, and create multi-device
support.
Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
pxa2xx-flash is the only user of ioremap_cached, which is an alias
for ioremap_cache anyway.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
* Kill useless initializer in mtd_do_chip_probe()
* Fix a rare write failure seen on some cfi_cmdset_0002 compliant
Parallel NORs
* Bunch of cleanups for cfi_cmdset_0002 driver's write functions by
Tokunori Ikegami <ikegami.t@gmail.com>
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Merge tag 'cfi/for-5.4-rc1' of https://github.com/r-vignesh/linux into mtd/for-5.4
CFI core
* Kill useless initializer in mtd_do_chip_probe()
* Fix a rare write failure seen on some cfi_cmdset_0002 compliant
Parallel NORs
* Bunch of cleanups for cfi_cmdset_0002 driver's write functions by
Tokunori Ikegami <ikegami.t@gmail.com>
- add debugfs nodes for querying the flash name and id
SPI NOR core changes:
- always use bounce buffer for register read/writes
- move m25p80 code in spi-nor.c
- rework hwcaps selection for the spi-mem case
- rework the core in order to move the manufacturer specific code
out of it:
- regroup flash parameters in 'struct spi_nor_flash_parameter'
- add default_init() and post_sfdp() hooks to tweak the flash
parameters
- introduce the ->set_4byte(), ->convert_addr() and ->setup()
methods, to deal with manufacturer specific code
- rework the SPI NOR lock/unlock logic
- fix an error code in spi_nor_read_raw()
- fix a memory leak bug
- enable the debugfs for the partname and partid
- add support for few flashes
SPI NOR controller drivers changes:
- intel-spi:
- Whitelist 4B read commands
- Add support for Intel Tiger Lake SPI serial flash
- aspeed-smc: Add of_node_put()
- hisi-sfc: Add of_node_put()
- cadence-quadspi: Fix QSPI RCU Schedule Stall
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Merge tag 'spi-nor/for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/for-5.4
MTD core changes:
- add debugfs nodes for querying the flash name and id
SPI NOR core changes:
- always use bounce buffer for register read/writes
- move m25p80 code in spi-nor.c
- rework hwcaps selection for the spi-mem case
- rework the core in order to move the manufacturer specific code
out of it:
- regroup flash parameters in 'struct spi_nor_flash_parameter'
- add default_init() and post_sfdp() hooks to tweak the flash
parameters
- introduce the ->set_4byte(), ->convert_addr() and ->setup()
methods, to deal with manufacturer specific code
- rework the SPI NOR lock/unlock logic
- fix an error code in spi_nor_read_raw()
- fix a memory leak bug
- enable the debugfs for the partname and partid
- add support for few flashes
SPI NOR controller drivers changes:
- intel-spi:
- Whitelist 4B read commands
- Add support for Intel Tiger Lake SPI serial flash
- aspeed-smc: Add of_node_put()
- hisi-sfc: Add of_node_put()
- cadence-quadspi: Fix QSPI RCU Schedule Stall
* Fixing typos
* Adding missing of_node_put() in various drivers
Raw NAND controller drivers:
* Macronix: new controller driver
* Omap2: Fixing the number of bitflips returned
* Brcmnand: Fix a pointer not iterating over all the page chunks
* W90x900: Driver removed
* Onenand: Fix a memory leak
* Sharpsl: Missing include guard
* STM32: Avoid warnings when building with W=1
* Ingenic: Fix a coccinelle warning
* r852: Call a helper to simplify the code
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Merge tag 'nand/for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/for-5.4
NAND core
* Fixing typos
* Adding missing of_node_put() in various drivers
Raw NAND controller drivers:
* Macronix: new controller driver
* Omap2: Fixing the number of bitflips returned
* Brcmnand: Fix a pointer not iterating over all the page chunks
* W90x900: Driver removed
* Onenand: Fix a memory leak
* Sharpsl: Missing include guard
* STM32: Avoid warnings when building with W=1
* Ingenic: Fix a coccinelle warning
* r852: Call a helper to simplify the code
If volume size is not a multiple of 512, ubi block cuts
off the last bytes of an volume since the block layer works
on 512 byte sectors.
This can happen especially on NOR flash with minimal io
size of 1.
To avoid unpleasant surprises, print a warning.
Signed-off-by: Richard Weinberger <richard@nod.at>
Running stress test io_paral (A pressure ubi test in mtd-utils) on an
UBI device with fewer PEBs (fastmap enabled) may cause ENOSPC errors and
make UBI device read-only, but there are still free PEBs on the UBI
device. This problem can be easily reproduced by performing the following
steps on a 2-core machine:
$ modprobe nandsim first_id_byte=0x20 second_id_byte=0x33 parts=80
$ modprobe ubi mtd="0,0" fm_autoconvert
$ ./io_paral /dev/ubi0
We may see the following verbose:
(output)
[io_paral] update_volume():108: failed to write 380 bytes at offset
95920 of volume 2
[io_paral] update_volume():109: update: 97088 bytes
[io_paral] write_thread():227: function pwrite() failed with error 28
(No space left on device)
[io_paral] write_thread():229: cannot write 15872 bytes to offs 31744,
wrote -1
(dmesg)
ubi0 error: ubi_wl_get_peb [ubi]: Unable to get a free PEB from user WL
pool
ubi0 warning: ubi_eba_write_leb [ubi]: switch to read-only mode
CPU: 0 PID: 2027 Comm: io_paral Not tainted 5.3.0-rc2-00001-g5986cd0 #9
ubi0 warning: try_write_vid_and_data [ubi]: failed to write VID header
to LEB 2:5, PEB 18
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0
-0-ga698c8995f-prebuilt.qemu.org 04/01/2014
Call Trace:
dump_stack+0x85/0xba
ubi_eba_write_leb+0xa1e/0xa40 [ubi]
vol_cdev_write+0x307/0x520 [ubi]
vfs_write+0xfa/0x280
ksys_pwrite64+0xc5/0xe0
__x64_sys_pwrite64+0x22/0x30
do_syscall_64+0xbf/0x440
In function ubi_wl_get_peb, the operation of filling the pool
(ubi_update_fastmap) with free PEBs and fetching a free PEB from the pool
is not atomic. After thread A filling the pool with free PEB, free PEB may
be taken away by thread B. When thread A checks the expression again, the
condition is still unsatisfactory. At this time, there may still be free
PEBs on UBI that can be filled into the pool.
This patch increases the number of attempts to obtain PEB. An extreme
case (No free PEBs left after creating test volumes) has been tested on
different type of machines for 100 times. The biggest number of attempts
are shown below:
x86_64 arm64
2-core 4 4
4-core 8 4
8-core 4 4
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
To make sure that Fastmap can use a PEB within the first 64
PEBs, UBI moves blocks away from that area.
It uses regular wear-leveling for that job.
An anchor move can be triggered if no PEB is free in this area
or because of anticipation. In the latter case it can happen
that UBI decides to move a block but finds a free PEB
within the same area.
This case is in vain an increases only erase counters.
Catch this case and cancel wear-leveling if this happens.
Signed-off-by: Richard Weinberger <richard@nod.at>
Kill mount_mtd() as it has now been replaced by vfs_get_mtd_super() in the
new mount API and nothing now uses it.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: David Woodhouse <dwmw2@infradead.org>
cc: Brian Norris <computersforpeace@gmail.com>
cc: Boris Brezillon <bbrezillon@kernel.org>
cc: Marek Vasut <marek.vasut@gmail.com>
cc: Richard Weinberger <richard@nod.at>
cc: linux-mtd@lists.infradead.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Provide a function, get_tree_mtd(), to replace mount_mtd(), using an
fs_context struct to hold the parameters.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: David Woodhouse <dwmw2@infradead.org>
cc: Brian Norris <computersforpeace@gmail.com>
cc: Boris Brezillon <bbrezillon@kernel.org>
cc: Marek Vasut <marek.vasut@gmail.com>
cc: Richard Weinberger <richard@nod.at>
cc: linux-mtd@lists.infradead.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
n25q512a was rebranded to mt25qu512a after its spin off from STM.
mt25qu512a is different only in terms of operating frequency, the
JEDEC id is the same as in n25q512a.
Dual reads are supported (0x3b, 0x3c), set the SPI_NOR_DUAL_READ flag.
4-byte opcodes are supported, set the SPI_NOR_4B_OPCODES flag.
Tested Single I/O and QUAD I/O mode on LS1046FRWY.
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
[tudor.ambarus@microchip.com: rename entry to "mt25qu512a (n25q512a)",
reword commit message, order entry by size, drop comment as it looked
redundant]
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
lib/devres.c, which implements devm_ioremap_resource(), is only built
when CONFIG_HAS_IOMEM is set/enabled, so MTD_HYPERBUS should depend
on HAS_IOMEM. Fixes a build error and a Kconfig warning (as seen on
UML builds):
WARNING: unmet direct dependencies detected for MTD_COMPLEX_MAPPINGS
Depends on [n]: MTD [=m] && HAS_IOMEM [=n]
Selected by [m]:
- MTD_HYPERBUS [=m] && MTD [=m]
ERROR: "devm_ioremap_resource" [drivers/mtd/hyperbus/hyperbus-core.ko] undefined!
Fixes: dcc7d3446a ("mtd: Add support for HyperBus memory devices")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-mtd@lists.infradead.org
Acked-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
omap_elm_correct_data() returns the number of bitflips for the whole
page. This is wrong, it should return the maximum number of bitflips
found in each ECC step.
In my case with a 4k page size NAND mtcdore reported -EUCLEAN with
only 12 bitflips on a page where we could correct up to 128 bits per
page (provided they are distributed equally on the 8 ECC steps)
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
