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Fix the following compilation warning:
drivers/mtd/spi-nor/controllers/aspeed-smc.c:1334:17: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'unsigned int' [-Wformat=]
1334 | dev_info(dev, "tx width: %ld\n", spi_tx_width);
| ^~~~~~~~~~~~~~~~~
Fixes: 9b4da1ccbb55 ("SPI Quad IO driver support AST2600")
Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
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https://github.com/openbmc/linux into openbmc/dev-5.15-intel-bump_v5.15.36
Signed-off-by: Sujoy Ray <sujoy.ray@intel.com>
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This is the 5.15.34 stable release
Signed-off-by: Joel Stanley <joel@jms.id.au>
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commit c3c07fc25f37c157fde041b3a0c3dfcb1590cbce upstream.
Abort fastmap scanning and return error code if memory allocation fails
in add_aeb(). Otherwise ubi will get wrong peb statistics information
after scanning.
Fixes: dbb7d2a88d2a7b ("UBI: Add fastmap core")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3cbf0e392f173ba0ce425968c8374a6aa3e90f2e upstream.
Hulk Robot reported a KASAN report about use-after-free:
==================================================================
BUG: KASAN: use-after-free in __list_del_entry_valid+0x13d/0x160
Read of size 8 at addr ffff888035e37d98 by task ubiattach/1385
[...]
Call Trace:
klist_dec_and_del+0xa7/0x4a0
klist_put+0xc7/0x1a0
device_del+0x4d4/0xed0
cdev_device_del+0x1a/0x80
ubi_attach_mtd_dev+0x2951/0x34b0 [ubi]
ctrl_cdev_ioctl+0x286/0x2f0 [ubi]
Allocated by task 1414:
device_add+0x60a/0x18b0
cdev_device_add+0x103/0x170
ubi_create_volume+0x1118/0x1a10 [ubi]
ubi_cdev_ioctl+0xb7f/0x1ba0 [ubi]
Freed by task 1385:
cdev_device_del+0x1a/0x80
ubi_remove_volume+0x438/0x6c0 [ubi]
ubi_cdev_ioctl+0xbf4/0x1ba0 [ubi]
[...]
==================================================================
The lock held by ctrl_cdev_ioctl is ubi_devices_mutex, but the lock held
by ubi_cdev_ioctl is ubi->device_mutex. Therefore, the two locks can be
concurrent.
ctrl_cdev_ioctl contains two operations: ubi_attach and ubi_detach.
ubi_detach is bug-free because it uses reference counting to prevent
concurrency. However, uif_init and uif_close in ubi_attach may race with
ubi_cdev_ioctl.
uif_init will race with ubi_cdev_ioctl as in the following stack.
cpu1 cpu2 cpu3
_______________________|________________________|______________________
ctrl_cdev_ioctl
ubi_attach_mtd_dev
uif_init
ubi_cdev_ioctl
ubi_create_volume
cdev_device_add
ubi_add_volume
// sysfs exist
kill_volumes
ubi_cdev_ioctl
ubi_remove_volume
cdev_device_del
// first free
ubi_free_volume
cdev_del
// double free
cdev_device_del
And uif_close will race with ubi_cdev_ioctl as in the following stack.
cpu1 cpu2 cpu3
_______________________|________________________|______________________
ctrl_cdev_ioctl
ubi_attach_mtd_dev
uif_init
ubi_cdev_ioctl
ubi_create_volume
cdev_device_add
ubi_debugfs_init_dev
//error goto out_uif;
uif_close
kill_volumes
ubi_cdev_ioctl
ubi_remove_volume
cdev_device_del
// first free
ubi_free_volume
// double free
The cause of this problem is that commit 714fb87e8bc0 make device
"available" before it becomes accessible via sysfs. Therefore, we
roll back the modification. We will fix the race condition between
ubi device creation and udev by removing ubi_get_device in
vol_attribute_show and dev_attribute_show.This avoids accessing
uninitialized ubi_devices[ubi_num].
ubi_get_device is used to prevent devices from being deleted during
sysfs execution. However, now kernfs ensures that devices will not
be deleted before all reference counting are released.
The key process is shown in the following stack.
device_del
device_remove_attrs
device_remove_groups
sysfs_remove_groups
sysfs_remove_group
remove_files
kernfs_remove_by_name
kernfs_remove_by_name_ns
__kernfs_remove
kernfs_drain
Fixes: 714fb87e8bc0 ("ubi: Fix race condition between ubi device creation and udev")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit fecbd4a317c95d73c849648c406bcf1b6a0ec1cf ]
The reference counting issue happens in several error handling paths
on a refcounted object "nc->dmac". In these paths, the function simply
returns the error code, forgetting to balance the reference count of
"nc->dmac", increased earlier by dma_request_channel(), which may
cause refcount leaks.
Fix it by decrementing the refcount of specific object in those error
paths.
Fixes: f88fc122cc34 ("mtd: nand: Cleanup/rework the atmel_nand driver")
Co-developed-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Co-developed-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: Xin Xiong <xiongx18@fudan.edu.cn>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220304085330.3610-1-xiongx18@fudan.edu.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit a1fe2ace2c39dcdc7c053705459a73b7598b1e4f ]
In devicetree the flash information is embedded within nand chip node,
so during nand chip initialization the nand chip node should be passed
to nand_set_flash_node() api, instead of nand controller node.
Fixes: 08d8c62164a3 ("mtd: rawnand: pl353: Add support for the ARM PL353 SMC NAND controller")
Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220209053427.27676-1-amit.kumar-mahapatra@xilinx.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 69a6d06878f05d63673b0dcdc3c3ef1af2996d46 ]
Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding an id_table listing the
SPI IDs for everything.
Fixes: 96c8395e2166 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Michael Walle <michael@walle.cc>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220202143404.16070-4-broonie@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit bc7ee2e34b219da6813c17a1680dd20766648883 ]
Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding an id_table listing the
SPI IDs for everything.
Fixes: 96c8395e2166 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Michael Walle <michael@walle.cc>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220202143404.16070-3-broonie@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 2970bf5a32f079e1e9197411db4fe9faccb1503a ]
Set the controller registers according to the real clock rate. The
controller registers configuration (setup, hold, timeout, ... cycles)
depends on the clock rate of the GPMI. Using the real rate instead of
the ideal one, avoids that this inaccuracy (required_rate - real_rate)
affects the registers setting.
This patch has been tested on two custom boards with i.MX28 and i.MX6
SOCs:
- i.MX28:
required rate 100MHz, real rate 99.3MHz
- i.MX6
required rate 100MHz, real rate 99MHz
Fixes: b1206122069a ("mtd: rawnand: gpmi: use core timings instead of an empirical derivation")
Co-developed-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220118095434.35081-3-dario.binacchi@amarulasolutions.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 3e68f331c8c759c0daa31cc92c3449b23119a215 ]
For the possible failure of the platform_get_irq(), the returned irq
could be error number and will finally cause the failure of the
request_irq().
Consider that platform_get_irq() can now in certain cases return
-EPROBE_DEFER, and the consequences of letting request_irq() effectively
convert that into -EINVAL, even at probe time rather than later on.
So it might be better to check just now.
Fixes: 2c22120fbd01 ("MTD: OneNAND: interrupt based wait support")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220104162658.1988142-1-jiasheng@iscas.ac.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 8cba323437a49a45756d661f500b324fc2d486fe upstream.
Prevent rawnand access while in a suspended state.
Commit 013e6292aaf5 ("mtd: rawnand: Simplify the locking") allows the
rawnand layer to return errors rather than waiting in a blocking wait.
Tested on a iMX6ULL.
Fixes: 013e6292aaf5 ("mtd: rawnand: Simplify the locking")
Signed-off-by: Sean Nyekjaer <sean@geanix.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220208085213.1838273-1-sean@geanix.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In AST2600, the unit of SPI CEx decoding range register is 1MB, and end
address offset is set to the acctual offset - 1MB. If the flash only has
1MB, the end address will has same value as start address, which will
causing unexpected errors.
This patch set the decoding size to at least 2MB to avoid decoding errors.
Tested:
root@bletchley:~# dmesg | grep "aspeed-smc 1e631000.spi: CE0 window"
[ 59.328134] aspeed-smc 1e631000.spi: CE0 window resized to 2MB (AST2600 Decoding)
[ 59.343001] aspeed-smc 1e631000.spi: CE0 window [ 0x50000000 - 0x50200000 ] 2MB
root@bletchley:~# devmem 0x1e631030
0x00100000
OpenBMC-Staging-Count: 1
Signed-off-by: Potin Lai <potin.lai@quantatw.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Link: https://lore.kernel.org/r/20220331002914.30495-1-potin.lai@quantatw.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
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This is the 5.15.30 stable release
Signed-off-by: Joel Stanley <joel@jms.id.au>
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https://github.com/openbmc/linux into openbmc/linux_5.15.24_bump
Signed-off-by: Sujoy Ray <sujoy.ray@intel.com>
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[ Upstream commit f656b419d41aabafb6b526abc3988dfbf2e5c1ba ]
As it was before the blamed commit, s3an_nor_scan() was called
after mtd size was set with params->size, and it overwrote the mtd
size value with '8 * nor->page_size * nor->info->n_sectors' when
XSR_PAGESIZE was set. With the introduction of
s3an_post_sfdp_fixups(), we missed to update the mtd size for the
s3an flashes. Fix the mtd size by updating both nor->params->size,
(which will update the mtd_info size later on) and nor->mtd.size
(which is used in spi_nor_set_addr_width()).
Fixes: 641edddb4f43 ("mtd: spi-nor: Add s3an_post_sfdp_fixups()")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Link: https://lore.kernel.org/r/20211207140254.87681-2-tudor.ambarus@microchip.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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This is the 5.15.26 stable release
Signed-off-by: Joel Stanley <joel@jms.id.au>
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commit 6c7621890995d089a56a06d11580d185ede7c2f8 upstream.
Wp-gpios property can be used on NVMEM nodes and the same property can
be also used on MTD NAND nodes. In case of the wp-gpios property is
defined at NAND level node, the GPIO management is done at NAND driver
level. Write protect is disabled when the driver is probed or resumed
and is enabled when the driver is released or suspended.
When no partitions are defined in the NAND DT node, then the NAND DT node
will be passed to NVMEM framework. If wp-gpios property is defined in
this node, the GPIO resource is taken twice and the NAND controller
driver fails to probe.
A new Boolean flag named ignore_wp has been added in nvmem_config.
In case ignore_wp is set, it means that the GPIO is handled by the
provider. Lets set this flag in MTD layer to avoid the conflict on
wp_gpios property.
Fixes: 2a127da461a9 ("nvmem: add support for the write-protect pin")
Cc: stable@vger.kernel.org
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151432.16605-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add support for winbond w25q01jv-iq chip.
OpenBMC-Staging-Count: 1
Signed-off-by: Potin Lai <potin.lai@quantatw.com>
Link: https://lore.kernel.org/r/20211224104522.24615-1-potin.lai@quantatw.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
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[ Upstream commit ba1b71b008e97fd747845ff3a818420b11bbe830 ]
If of_find_device_by_node() succeeds, ingenic_ecc_get() doesn't have
a corresponding put_device(). Thus add put_device() to fix the exception
handling.
Fixes: 15de8c6efd0e ("mtd: rawnand: ingenic: Separate top-level and SoC specific code")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211230072751.21622-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 36415a7964711822e63695ea67fede63979054d9 upstream.
The brcmnand driver contains a bug in which if a page (example 2k byte)
is read from the parallel/ONFI NAND and within that page a subpage (512
byte) has correctable errors which is followed by a subpage with
uncorrectable errors, the page read will return the wrong status of
correctable (as opposed to the actual status of uncorrectable.)
The bug is in function brcmnand_read_by_pio where there is a check for
uncorrectable bits which will be preempted if a previous status for
correctable bits is detected.
The fix is to stop checking for bad bits only if we already have a bad
bits status.
Fixes: 27c5b17cd1b1 ("mtd: nand: add NAND driver "library" for Broadcom STB NAND controller")
Signed-off-by: david regan <dregan@mail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/trinity-478e0c09-9134-40e8-8f8c-31c371225eda-1643237024774@3c-app-mailcom-lxa02
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3e3765875b1b8864898603768fd5c93eeb552211 upstream.
The problem is that "erasesize" is a uint64_t type so it might be
non-zero but the lower 32 bits are zero so when it's truncated,
"(uint32_t)erasesize", then that value is zero. This leads to a
divide by zero bug.
Avoid the bug by delaying the divide until after we have validated
that "erasesize" is non-zero and within the uint32_t range.
Fixes: dc2b3e5cbc80 ("mtd: phram: use div_u64_rem to stop overwrite len in phram_setup")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220121115505.GI1978@kadam
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3dd8ba961b9356c4113b96541c752c73d98fef70 upstream.
Mtdpart doesn't free pparts when a cleanup function is declared.
Add missing free for pparts in cleanup function for smem to fix the
leak.
Fixes: 10f3b4d79958 ("mtd: parsers: qcom: Fix leaking of partition name")
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220116032211.9728-2-ansuelsmth@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 65d003cca335cabc0160d3cd7daa689eaa9dd3cd upstream.
In the event of a skipped partition (case when the entry name is empty)
the kernel panics in the cleanup function as the name entry is NULL.
Rework the parser logic by first checking the real partition number and
then allocate the space and set the data for the valid partitions.
The logic was also fundamentally wrong as with a skipped partition, the
parts number returned was incorrect by not decreasing it for the skipped
partitions.
Fixes: 803eb124e1a6 ("mtd: parsers: Add Qcom SMEM parser")
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220116032211.9728-1-ansuelsmth@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 5c23b3f965bc9ee696bf2ed4bdc54d339dd9a455 upstream.
Interacting with a NAND chip on an IPQ6018 I found that the qcomsmem NAND
partition parser was returning -EPROBE_DEFER waiting for the main smem
driver to load.
This caused the board to reset. Playing about with the probe() function
shows that the problem lies in the core clock being switched off before the
nandc_unalloc() routine has completed.
If we look at how qcom_nandc_remove() tears down allocated resources we see
the expected order is
qcom_nandc_unalloc(nandc);
clk_disable_unprepare(nandc->aon_clk);
clk_disable_unprepare(nandc->core_clk);
dma_unmap_resource(&pdev->dev, nandc->base_dma, resource_size(res),
DMA_BIDIRECTIONAL, 0);
Tweaking probe() to both bring up and tear-down in that order removes the
reset if we end up deferring elsewhere.
Fixes: c76b78d8ec05 ("mtd: nand: Qualcomm NAND controller driver")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220103030316.58301-2-bryan.odonoghue@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 9161f365c91614e5a3f5c6dcc44c3b1b33bc59c0 upstream.
If gpmi_nfc_apply_timings() fails, the PM runtime usage counter must be
dropped.
Reported-by: Pavel Machek <pavel@denx.de>
Fixes: f53d4c109a66 ("mtd: rawnand: gpmi: Add ERR007117 protection for nfc_apply_timings")
Signed-off-by: Christian Eggers <ceggers@arri.de>
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220125081619.6286-1-ceggers@arri.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is the 5.15.24 stable release
Signed-off-by: Joel Stanley <joel@jms.id.au>
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The aspeed-smc can have multiple SPI devices attached to it in the
device tree. If one of the devices is missing or failing the entire
probe will fail and all MTD devices under the controller will be
removed. On OpenBMC this results in a kernel panic due to missing
rootfs:
[ 0.538774] aspeed-smc 1e620000.spi: Using 50 MHz SPI frequency
[ 0.540471] aspeed-smc 1e620000.spi: w25q01jv-iq (131072 Kbytes)
[ 0.540750] aspeed-smc 1e620000.spi: CE0 window [ 0x20000000 - 0x28000000 ] 128MB
[ 0.540943] aspeed-smc 1e620000.spi: CE1 window [ 0x28000000 - 0x2c000000 ] 64MB
[ 0.541143] aspeed-smc 1e620000.spi: read control register: 203b0041
[ 0.581442] 5 fixed-partitions partitions found on MTD device bmc
[ 0.581625] Creating 5 MTD partitions on "bmc":
[ 0.581854] 0x000000000000-0x0000000e0000 : "u-boot"
[ 0.584472] 0x0000000e0000-0x000000100000 : "u-boot-env"
[ 0.586468] 0x000000100000-0x000000a00000 : "kernel"
[ 0.588465] 0x000000a00000-0x000006000000 : "rofs"
[ 0.590552] 0x000006000000-0x000008000000 : "rwfs"
[ 0.592605] aspeed-smc 1e620000.spi: Using 50 MHz SPI frequency
[ 0.592801] aspeed-smc 1e620000.spi: unrecognized JEDEC id bytes: 00 00 00 00 00 00
[ 0.593039] Deleting MTD partitions on "bmc":
[ 0.593175] Deleting u-boot MTD partition
[ 0.637929] Deleting u-boot-env MTD partition
[ 0.829527] Deleting kernel MTD partition
[ 0.856902] Freeing initrd memory: 1032K
[ 0.866428] Deleting rofs MTD partition
[ 0.906264] Deleting rwfs MTD partition
[ 0.986628] aspeed-smc 1e620000.spi: Aspeed SMC probe failed -2
[ 0.986929] aspeed-smc: probe of 1e620000.spi failed with error -2
...
[ 2.936719] /dev/mtdblock: Can't open blockdev
mount: mounting /dev/mtdblock on run/initramfs/ro failed: No such file or directory
[ 2.963030] MTD: Couldn't look up '/dev/mtdblock': -2
mount: mounting /dev/mtdblock on run/initramfs/rw failed: No such file or directory
Mounting read-write /dev/mtdblock filesystem failed. Please fix and run
mount /dev/mtdblock run/initramfs/rw -t jffs2 -o rw
or perform a factory reset with the clean-rwfs-filesystem option.
Fatal error, triggering kernel panic!
[ 3.013047] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000100
Many BMC designs have two flash chips so that they can handle a hardware
failure of one of them. If one chip failed, it doesn't do any good to
have redundancy if they all get removed anyhow.
Improve the resilience of the probe function to handle one of the
children being missing or failed. Only in the case where all children
fail to probe should the controller be failed out.
OpenBMC-Staging-Count: 1
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211229143334.297305-1-patrick@stwcx.xyz
Link: https://lore.kernel.org/r/20220131225904.137769-1-patrick@stwcx.xyz
Signed-off-by: Joel Stanley <joel@jms.id.au>
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commit 33a0da68fb073360d36ce1a0e852f75fede7c21e upstream.
drivers/mtd/nand/raw/mpc5121_nfc.c: In function ‘ads5121_select_chip’:
drivers/mtd/nand/raw/mpc5121_nfc.c:294:19: warning: unused variable ‘mtd’ [-Wunused-variable]
294 | struct mtd_info *mtd = nand_to_mtd(nand);
| ^~~
Fixes: 758b56f58b66bebc ("mtd: rawnand: Pass a nand_chip object to chip->select_chip()")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211122132138.3899138-1-geert@linux-m68k.org
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
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This is the 5.15.18 stable release
Signed-off-by: Joel Stanley <joel@jms.id.au>
|
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[ Upstream commit c048b60d39e109c201d31ed5ad3a4f939064d6c4 ]
If there is more than one mtd device which supports OTP, there will
be a kernel warning about duplicated sysfs entries and the probing will
fail. This is because the nvmem device name is not unique. Make it
unique by prepending the name of the mtd. E.g. before the name was
"user-otp", now it will be "mtd0-user-otp".
For reference the kernel splash is:
[ 4.665531] sysfs: cannot create duplicate filename '/bus/nvmem/devices/user-otp'
[ 4.673056] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.15.0-next-20211101+ #1296
[ 4.680565] Hardware name: Kontron SMARC-sAL28 (Single PHY) on SMARC Eval 2.0 carrier (DT)
[ 4.688856] Call trace:
[ 4.691303] dump_backtrace+0x0/0x1bc
[ 4.694984] show_stack+0x24/0x30
[ 4.698306] dump_stack_lvl+0x68/0x84
[ 4.701980] dump_stack+0x18/0x34
[ 4.705302] sysfs_warn_dup+0x70/0x90
[ 4.708973] sysfs_do_create_link_sd+0x144/0x150
[ 4.713603] sysfs_create_link+0x2c/0x50
[ 4.717535] bus_add_device+0x74/0x120
[ 4.721293] device_add+0x330/0x890
[ 4.724791] device_register+0x2c/0x40
[ 4.728550] nvmem_register+0x240/0x9f0
[ 4.732398] mtd_otp_nvmem_register+0xb0/0x10c
[ 4.736854] mtd_device_parse_register+0x28c/0x2b4
[ 4.741659] spi_nor_probe+0x20c/0x2e0
[ 4.745418] spi_mem_probe+0x78/0xbc
[ 4.749001] spi_probe+0x90/0xf0
[ 4.752237] really_probe.part.0+0xa4/0x320
..
[ 4.873936] mtd mtd1: Failed to register OTP NVMEM device
[ 4.894468] spi-nor: probe of spi0.0 failed with error -17
Fixes: 4b361cfa8624 ("mtd: core: add OTP nvmem provider support")
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211104134843.2642800-1-michael@walle.cc
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit baaf965f94308301d2dc554d72a87d7432cd5ce6 ]
The following KASAN BUG is observed when testing the rpc-if driver on
rcar-gen3:
root@rcar-gen3:~# modprobe -r rpc-if
[ 101.930146] ==================================================================
[ 101.937408] BUG: KASAN: slab-out-of-bounds in __lock_acquire+0x518/0x25d0
[ 101.944240] Read of size 8 at addr ffff0004c5be2750 by task modprobe/664
[ 101.950959]
[ 101.952466] CPU: 2 PID: 664 Comm: modprobe Not tainted 5.14.0-rc1-00342-g1a1464d7aa31 #1
[ 101.960578] Hardware name: Renesas H3ULCB board based on r8a77951 (DT)
[ 101.967120] Call trace:
[ 101.969580] dump_backtrace+0x0/0x2c0
[ 101.973275] show_stack+0x1c/0x30
[ 101.976616] dump_stack_lvl+0x9c/0xd8
[ 101.980301] print_address_description.constprop.0+0x74/0x2b8
[ 101.986071] kasan_report+0x1f4/0x26c
[ 101.989757] __asan_load8+0x98/0xd4
[ 101.993266] __lock_acquire+0x518/0x25d0
[ 101.997215] lock_acquire.part.0+0x18c/0x360
[ 102.001506] lock_acquire+0x74/0x90
[ 102.005013] _raw_spin_lock_irq+0x98/0x130
[ 102.009131] __pm_runtime_disable+0x30/0x210
[ 102.013427] rpcif_hb_remove+0x5c/0x70 [rpc_if]
[ 102.018001] platform_remove+0x40/0x80
[ 102.021771] __device_release_driver+0x234/0x350
[ 102.026412] driver_detach+0x158/0x20c
[ 102.030179] bus_remove_driver+0xa0/0x140
[ 102.034212] driver_unregister+0x48/0x80
[ 102.038153] platform_driver_unregister+0x18/0x24
[ 102.042879] rpcif_platform_driver_exit+0x1c/0x34 [rpc_if]
[ 102.048400] __arm64_sys_delete_module+0x210/0x310
[ 102.053212] invoke_syscall+0x60/0x190
[ 102.056986] el0_svc_common+0x12c/0x144
[ 102.060844] do_el0_svc+0x88/0xac
[ 102.064181] el0_svc+0x24/0x3c
[ 102.067257] el0t_64_sync_handler+0x1a8/0x1b0
[ 102.071634] el0t_64_sync+0x198/0x19c
[ 102.075315]
[ 102.076815] Allocated by task 628:
[ 102.080781]
[ 102.082280] Last potentially related work creation:
[ 102.087524]
[ 102.089022] The buggy address belongs to the object at ffff0004c5be2000
[ 102.089022] which belongs to the cache kmalloc-2k of size 2048
[ 102.101555] The buggy address is located 1872 bytes inside of
[ 102.101555] 2048-byte region [ffff0004c5be2000, ffff0004c5be2800)
[ 102.113486] The buggy address belongs to the page:
[ 102.118409]
[ 102.119908] Memory state around the buggy address:
[ 102.124711] ffff0004c5be2600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 102.131947] ffff0004c5be2680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 102.139181] >ffff0004c5be2700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 102.146412] ^
[ 102.152257] ffff0004c5be2780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 102.159491] ffff0004c5be2800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 102.166723] ==================================================================
The above bug is caused by use of the wrong pointer in the
rpcif_disable_rpm() call. Fix the bug by using the correct pointer.
Fixes: 5de15b610f78 ("mtd: hyperbus: add Renesas RPC-IF driver")
Signed-off-by: George G. Davis <davis.george@siemens.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20210716204935.25859-1-george_davis@mentor.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 981387ed06b96908223a607f5fba6efa42728fc2 ]
rpcif_sw_init() can fail so make sure we check the return value
of it and on error exit rpcif_hb_probe() callback with error code.
Fixes: 5de15b610f78 ("mtd: hyperbus: add Renesas RPC-IF driver")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20211025205631.21151-5-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 0171480007d64f663aae9226303f1b1e4621229e upstream.
The ECC engine on the JZ4740 SoC requires the ECC data to be read before
the page; using the default page reading function does not work. Indeed,
the old JZ4740 NAND driver (removed in 5.4) did use the 'OOB first' flag
that existed back then.
Use the newly created nand_read_page_hwecc_oob_first() to address this
issue.
This issue was not found when the new ingenic-nand driver was developed,
most likely because the Device Tree used had the nand-ecc-mode set to
"hw_oob_first", which seems to not be supported anymore.
Cc: <stable@vger.kernel.org> # v5.2
Fixes: a0ac778eb82c ("mtd: rawnand: ingenic: Add support for the JZ4740")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211016132228.40254-5-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit d8466f73010faf71effb21228ae1cbf577dab130 upstream.
Move the function nand_read_page_hwecc_oob_first() (previously
nand_davinci_read_page_hwecc_oob_first()) to nand_base.c, and export it
as a GPL symbol, so that it can be used by more modules.
Cc: <stable@vger.kernel.org> # v5.2
Fixes: a0ac778eb82c ("mtd: rawnand: ingenic: Add support for the JZ4740")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211016132228.40254-4-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 0697f8441faad552fbeb02d74454b5e7bcc956a2 upstream.
The original comment that describes the function
nand_davinci_read_page_hwecc_oob_first() is very obscure and it is hard
to understand what it is for.
Cc: <stable@vger.kernel.org> # v5.2
Fixes: a0ac778eb82c ("mtd: rawnand: ingenic: Add support for the JZ4740")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211016132228.40254-3-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 9c9d709965385de5a99f84b14bd5860e1541729e upstream.
The function nand_davinci_read_page_hwecc_oob_first() first reads the
OOB data, extracts the ECC information, programs the ECC hardware before
reading the actual data in a loop.
Right after the OOB data was read, it called nand_read_page_op() to
reset the read cursor to the beginning of the page. This caused the
first page to be read twice: in that call, and later in the loop.
Address that issue by changing the call to nand_read_page_op() to
nand_change_read_column_op(), which will only reset the read cursor.
Cc: <stable@vger.kernel.org> # v5.2
Fixes: a0ac778eb82c ("mtd: rawnand: ingenic: Add support for the JZ4740")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211016132228.40254-2-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 71e89591502d737c10db2bd4d8fcfaa352552afb upstream.
The function nand_davinci_read_page_hwecc_oob_first() does read the ECC
data from the OOB area. Therefore it does not need to calculate the ECC
as it is already available.
Cc: <stable@vger.kernel.org> # v5.2
Fixes: a0ac778eb82c ("mtd: rawnand: ingenic: Add support for the JZ4740")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211016132228.40254-1-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 2966daf7d253d9904b337b040dd7a43472858b8a upstream.
Not the child partition should be removed from the partition list
but the partition itself. Otherwise the partition list gets broken
and any subsequent remove operations leads to a kernel panic.
Fixes: 46b5889cc2c5 ("mtd: implement proper partition handling")
Signed-off-by: Andreas Oetken <andreas.oetken@siemens-energy.com>
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211102172604.2921065-1-andreas.oetken@siemens-energy.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit aa1baa0e6c1aa4872e481dce4fc7fd6f3dd8496b upstream.
There is no need to explicitly set the default gpmi clock rate during
boot for the i.MX 6 since this is done during nand_detect anyway.
Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Cc: stable@vger.kernel.org
Acked-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211102202022.15551-1-ceggers@arri.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f53d4c109a666bf1a4883b45d546fba079258717 upstream.
gpmi_io clock needs to be gated off when changing the parent/dividers of
enfc_clk_root (i.MX6Q/i.MX6UL) respectively qspi2_clk_root (i.MX6SX).
Otherwise this rate change can lead to an unresponsive GPMI core which
results in DMA timeouts and failed driver probe:
[ 4.072318] gpmi-nand 112000.gpmi-nand: DMA timeout, last DMA
...
[ 4.370355] gpmi-nand 112000.gpmi-nand: Chip: 0, Error -110
...
[ 4.375988] gpmi-nand 112000.gpmi-nand: Chip: 0, Error -22
[ 4.381524] gpmi-nand 112000.gpmi-nand: Error in ECC-based read: -22
[ 4.387988] gpmi-nand 112000.gpmi-nand: Chip: 0, Error -22
[ 4.393535] gpmi-nand 112000.gpmi-nand: Chip: 0, Error -22
...
Other than stated in i.MX 6 erratum ERR007117, it should be sufficient
to gate only gpmi_io because all other bch/nand clocks are derived from
different clock roots.
The i.MX6 reference manuals state that changing clock muxers can cause
glitches but are silent about changing dividers. But tests showed that
these glitches can definitely happen on i.MX6ULL. For i.MX7D/8MM in turn,
the manual guarantees that no glitches can happen when changing
dividers.
Co-developed-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Signed-off-by: Christian Eggers <ceggers@arri.de>
Cc: stable@vger.kernel.org
Acked-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211102202022.15551-2-ceggers@arri.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 603362b4a58393061dcfed1c7f0d0fd4aba61126 upstream.
drivers/mtd/maps/ixp4xx.c requires MTD_CFI_BE_BYTE_SWAP to be set
in order to compile.
drivers/mtd/maps/ixp4xx.c:57:4: error: #error CONFIG_MTD_CFI_BE_BYTE_SWAP required
This patch avoids the #error output by enforcing the policy in
Kconfig. Not sure if this is the right approach, but it helps doing
randconfig builds.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210927141045.1597593-1-arnd@kernel.org
Cc: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is the 5.15.10 stable release
Signed-off-by: Joel Stanley <joel@jms.id.au>
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[ Upstream commit 36a65982a98c4bc72fdcfef2c4aaf90193746631 ]
When the NV-DDR interface is not supported by the NAND chip,
the value of onfi->nvddr_timing_modes is 0. In this case,
the best_mode variable value in nand_choose_best_nvddr_timings()
is -1. The last for-loop is skipped and the function returns an
uninitialized value.
If this returned value is 0, the nand_choose_best_sdr_timings()
is not executed and no 'best timing' are set. This leads the host
controller and the NAND chip working at default mode 0 timing
even if a better timing can be used.
Fix this uninitialized returned value.
nand_choose_best_sdr_timings() is pretty similar to
nand_choose_best_nvddr_timings(). Even if onfi->sdr_timing_modes
should never be seen as 0, nand_choose_best_sdr_timings() returned
value is fixed.
Fixes: a9ecc8c814e9 ("mtd: rawnand: Choose the best timings, NV-DDR included")
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211119150316.43080-3-herve.codina@bootlin.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 16d8b628a4152e8e8b01b6a1d82e30208ee2dd30 ]
NAND_OP_CMD() expects a delay parameter in nanoseconds.
The delay value is wrongly given in milliseconds.
Fix the conversion macro used in order to set this
delay in nanoseconds.
Fixes: d7a773e8812b ("mtd: rawnand: Access SDR and NV-DDR timings through a common macro")
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211119150316.43080-2-herve.codina@bootlin.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 9472335eaa1452b51dc8e8edaa1a342997cb80c7 upstream.
Under certain circumstances, the timing settings calculated by
the FSMC NAND controller driver were inaccurate.
These settings led to incorrect data reads or fallback to
timing mode 0 depending on the NAND chip used.
The timing computation did not take into account the following
constraint given in SPEAr3xx reference manual:
twait >= tCEA - (tset * TCLK) + TOUTDEL + TINDEL
Enhance the timings calculation by taking into account this
additional constraint.
This change has no impact on slow timing modes such as mode 0.
Indeed, on mode 0, computed values are the same with and
without the patch.
NANDs which previously stayed in mode 0 because of fallback to
mode 0 can now work at higher speeds and NANDs which were not
working at all because of the corrupted data work at high
speeds without troubles.
Overall improvement on a Micron/MT29F1G08 (flash_speed tool):
mode0 mode3
eraseblock write speed 3220 KiB/s 4511 KiB/s
eraseblock read speed 4491 KiB/s 7529 KiB/s
Fixes: d9fb079571833 ("mtd: nand: fsmc: add support for SDR timings")
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211119150316.43080-5-herve.codina@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a4ca0c439f2d5ce9a3dc118d882f9f03449864c8 upstream.
The FSMC NAND controller should apply a delay after the
instruction has been issued on the bus.
The FSMC NAND controller driver did not handle this delay.
Add this waiting delay in the FSMC NAND controller driver.
Fixes: 4da712e70294 ("mtd: nand: fsmc: use ->exec_op()")
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211119150316.43080-4-herve.codina@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 27a030e8729255b2068f35c1cd609b532b263311 upstream.
Commit 5fa6863ba692 ("spi: Check we have a spi_device_id for each DT
compatible") added a test to check that every SPI driver has a
spi_device_id for each DT compatiable string defined by the driver
and warns if the spi_device_id is missing. The spi_device_ids are
missing for the dataflash driver and the following warnings are now
seen.
WARNING KERN SPI driver mtd_dataflash has no spi_device_id for atmel,at45
WARNING KERN SPI driver mtd_dataflash has no spi_device_id for atmel,dataflash
Fix this by adding the necessary spi_device_ids.
Fixes: 96c8395e2166 ("spi: Revert modalias changes")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211130112443.107730-1-jonathanh@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is the 5.15.5 stable release
Signed-off-by: Joel Stanley <joel@jms.id.au>
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commit 7e3cdba176ba59eaf4d463d273da0718e3626140 upstream.
Following the introduction of the generic ECC engine infrastructure, it
was necessary to reorganize the code and move the ECC configuration in
the ->attach_chip() hook. Failing to do that properly lead to a first
series of fixes supposed to stabilize the situation. Unfortunately, this
only fixed the use of software ECC engines, preventing any other kind of
engine to be used, including on-die ones.
It is now time to (finally) fix the situation by ensuring that we still
provide a default (eg. software ECC) but will still support different
ECC engines such as on-die ECC engines if properly described in the
device tree.
There are no changes needed on the core side in order to do this, but we
just need to leverage the logic there which allows:
1- a subsystem default (set to Host engines in the raw NAND world)
2- a driver specific default (here set to software ECC engines)
3- any type of engine requested by the user (ie. described in the DT)
As the raw NAND subsystem has not yet been fully converted to the ECC
engine infrastructure, in order to provide a default ECC engine for this
driver we need to set chip->ecc.engine_type *before* calling
nand_scan(). During the initialization step, the core will consider this
entry as the default engine for this driver. This value may of course
be overloaded by the user if the usual DT properties are provided.
Fixes: dbffc8ccdf3a ("mtd: rawnand: au1550: Move the ECC initialization to ->attach_chip()")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210928222258.199726-3-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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