Commit graph

888358 commits

Author SHA1 Message Date
Miquel Raynal 4575243c5c Raw NAND
* Macronix: Use match_string() helper
 * Atmel: switch to using devm_fwnode_gpiod_get()
 * Denali: rework the SKIP_BYTES feature and add reset controlling
 * Brcmnand: set appropriate DMA mask
 * Various cleanup.
 
 Onenand drivers
 * Rename Samsung and Omap2 drivers to avoid possible build warnings
 * Enable compile testing
 * Various build issues
 * Kconfig cleanup
 
 SPI-NAND
 * Support for Toshiba TC58CVG2S0HRAIJ
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Merge tag 'nand/for-5.6' into mtd/next

Raw NAND
* Macronix: Use match_string() helper
* Atmel: switch to using devm_fwnode_gpiod_get()
* Denali: rework the SKIP_BYTES feature and add reset controlling
* Brcmnand: set appropriate DMA mask
* Various cleanup.

Onenand drivers
* Rename Samsung and Omap2 drivers to avoid possible build warnings
* Enable compile testing
* Various build issues
* Kconfig cleanup

SPI-NAND
* Support for Toshiba TC58CVG2S0HRAIJ
2020-01-27 17:49:15 +01:00
Miquel Raynal 701ddf0bbf SPI NOR core changes:
- Add support for TB selection using SR bit 6,
 - Add support for few flashes.
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Merge tag 'spi-nor/for-5.6' into mtd/next

SPI NOR core changes:
- Add support for TB selection using SR bit 6,
- Add support for few flashes.
2020-01-27 17:48:30 +01:00
Miquel Raynal 0dcf257271 mtd: concat: Fix a comment referring to an unknown symbol
Fix the comment describing what the mtd_concat_destroy() function
does. It referrers to the concat_mtd_devs symbol which has never
existed (at least not since the beginning of the Git era).

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-27 17:45:31 +01:00
Brendan Higgins baebaa2b13 mtd: rawnand: add unspecified HAS_IOMEM dependency
Currently CONFIG_MTD_NAND_CADENCE implicitly depends on
CONFIG_HAS_IOMEM=y; consequently, on architectures without IOMEM we get
the following build error:

ld: drivers/mtd/nand/raw/cadence-nand-controller.o: in function `cadence_nand_dt_probe.cold.31':
drivers/mtd/nand/raw/cadence-nand-controller.c:2969: undefined reference to `devm_platform_ioremap_resource'
ld: drivers/mtd/nand/raw/cadence-nand-controller.c:2977: undefined reference to `devm_ioremap_resource'

Fix the build error by adding the unspecified dependency.

Reported-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-27 17:44:21 +01:00
Liu Song c3917a0484 mtd: block2mtd: page index should use pgoff_t
Page index use pgoff_t to prevent risk of truncation.

Signed-off-by: Liu Song <liu.song11@zte.com.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-27 16:55:41 +01:00
Geert Uytterhoeven 0bc448b49e mtd: maps: physmap: Add minimal Runtime PM support
Add minimal runtime PM support (enable on probe, disable on remove), to
ensure proper operation with a parent device that uses runtime PM.

This is needed on systems where the FLASH is connected to a bus
controller that is contained in a PM domain and/or has a gateable
functional clock.  In such cases, before accessing any device connected
to the external bus, the PM domain must be powered up, and/or the
functional clock must be enabled, which is typically handled through
runtime PM by the bus controller driver.

An example of this is the Renesas APE6-EVM development board, which has
an Ethernet controller and a CFI FLASH connected to the Bus State
Controller (BSC) of an R-Mobile APE6 SoC.
As long as the Ethernet driver, which had Runtime PM support since
commit 3a611e26e9 ("net/smsc911x: Add minimal runtime PM
support"), keeps the BSC powered, accessing the FLASH works.
When the ethernet node in r8a73a4-ape6evm.dts is disabled, the BSC is
never powered up, and the kernel crashes when trying to access the
FLASH:

    Unhandled fault: imprecise external abort (0x1406) at 0x00000000
    pgd = (ptrval)
    [00000000] *pgd=7fef2835
    Internal error: : 1406 [#1] SMP ARM
    CPU: 0 PID: 122 Comm: hd Tainted: G        W         5.5.0-rc1-ape6evm-00814-g38ca966db25b9dbd-dirty #136
    Hardware name: Generic R8A73A4 (Flattened Device Tree)
    PC is at chip_ready+0x12c/0x380
    LR is at chip_ready+0x10c/0x380

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-27 16:55:31 +01:00
Jia-Ju Bai 2a0b390b47 mtd: maps: pcmciamtd: fix possible sleep-in-atomic-context bugs in pcmciamtd_set_vpp()
The driver may sleep while holding a spinlock.
The function call path (from bottom to top) in Linux 4.19 is:

drivers/pcmcia/pcmcia_resource.c, 312:
	mutex_lock in pcmcia_fixup_vpp
drivers/mtd/maps/pcmciamtd.c, 309:
	pcmcia_fixup_vpp in pcmciamtd_set_vpp
drivers/mtd/maps/pcmciamtd.c, 306:
	_raw_spin_lock_irqsave in pcmciamtd_set_vpp

drivers/pcmcia/pcmcia_resource.c, 312:
	mutex_lock in pcmcia_fixup_vpp
drivers/mtd/maps/pcmciamtd.c, 312:
	pcmcia_fixup_vpp in pcmciamtd_set_vpp
drivers/mtd/maps/pcmciamtd.c, 306:
	_raw_spin_lock_irqsave in pcmciamtd_set_vp

mutex_lock() may sleep at runtime.

To fix these bugs, the spinlock is replaced with a mutex.

These bugs are found by a static analysis tool STCheck written by
myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-27 16:55:02 +01:00
Miquel Raynal d85339d9ea mtd: onenand: Rename omap2 driver to avoid a build warning
As previously reported by Sudip Mukherjee for the Samsung driver, the
omap2 onenand driver is called omap2.c in our directory and omap2.c in
the tty/serial/ directory. If both drivers are compiled as modules, it
would produce the following warning:

        warning: same module names found:
            drivers/tty/serial/omap2.ko
            drivers/mtd/nand/onenand/omap2.ko

Rename the onenand omap2 driver so that it fits the folder's
convention: onenand_omap2.c.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:35 +01:00
Miquel Raynal 446b6dc8d8 mtd: onenand: Use a better name for samsung driver
Commit 55ed51fff2 ("{tty: serial, nand: onenand}: samsung: rename to
fix build warning") has changed the samsung.c driver to be
samsung_mtd.c in order to avoid a conflict in module names with the
tty driver.

Since the *_mtd suffix is very undescriptive, rename it to
onenand_samsung.c, following the folder's convention. Same will be
applied to the omap2 onenand driver.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:35 +01:00
Dmitry Torokhov 7a95a72e05 mtd: rawnand: atmel: switch to using devm_fwnode_gpiod_get()
devm_fwnode_get_index_gpiod_from_child() is going away as the name is
too unwieldy, let's switch to using the new devm_fwnode_gpiod_get().

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:34 +01:00
Robert Marko 9ee0f956cf mtd: spinand: add support for Toshiba TC58CVG2S0HRAIJ
Toshiba recently launched new revisions of their serial SLC NAND series.
TC58CVG2S0HRAIJ is a refresh of previous series with minor improvements.
Basic parameters are same so lets add support for this new revision.

Datasheet: https://business.kioxia.com/info/docget.jsp?did=58601&prodName=TC58CVG2S0HRAIJ

Tested under kernel 5.4.7.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:34 +01:00
YueHaibing db7b6aeca2 mtd: rawnand: macronix: Use match_string() helper to simplify the code
match_string() returns the array index of a matching string.
Use it instead of the open-coded implementation.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:34 +01:00
YueHaibing f33113b542 mtd: sharpslpart: Fix unsigned comparison to zero
The unsigned variable log_num is being assigned a return value
from the call to sharpsl_nand_get_logical_num that can return
-EINVAL.

Detected using Coccinelle:
./drivers/mtd/parsers/sharpslpart.c:207:6-13: WARNING: Unsigned expression compared with zero: log_num > 0

Fixes: 8a4580e4d2 ("mtd: sharpslpart: Add sharpslpart partition parser")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:34 +01:00
Krzysztof Kozlowski 05a5a6e57e mtd: onenand: Enable compile testing of OMAP and Samsung drivers
OMAP and Samsung OneNAND drivers can be compile tested.  The OMAP
drivers still depends on mach header so limit the compile testing to
ARMv7.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:34 +01:00
Krzysztof Kozlowski 440c24535c mtd: onenand: samsung: Fix printing format for size_t on 64-bit
Print size_t as %zu to fix -Wformat warnings when compiling on 64-bit
platform (e.g. with COMPILE_TEST):

    drivers/mtd/nand/onenand/samsung_mtd.c: In function ‘s5pc110_read_bufferram’:
    drivers/mtd/nand/onenand/samsung_mtd.c:661:16: warning:
        format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘size_t {aka long unsigned int}’ [-Wformat=]
       dev_err(dev, "Couldn't map a %d byte buffer for DMA\n", count);

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:34 +01:00
Krzysztof Kozlowski 14b292adcc mtd: onenand: samsung: Fix pointer cast -Wpointer-to-int-cast warnings on 64 bit
iomem pointers should be casted to unsigned long to avoid
-Wpointer-to-int-cast warnings when compiling on 64-bit platform (e.g.
with COMPILE_TEST):

    drivers/mtd/nand/onenand/samsung_mtd.c: In function ‘s3c_onenand_readw’:
    drivers/mtd/nand/onenand/samsung_mtd.c:251:6: warning:
        cast from pointer to integer of different size [-Wpointer-to-int-cast]
      if ((unsigned int) addr < ONENAND_DATARAM && onenand->bootram_command) {
          ^

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:33 +01:00
Masahiro Yamada a3b839e4e0 mtd: rawnand: denali: remove hard-coded DENALI_DEFAULT_OOB_SKIP_BYTES
As commit 0d55c668b2 (mtd: rawnand: denali: set SPARE_AREA_SKIP_BYTES
register to 8 if unset") says, there were three solutions discussed:

  [1] Add a DT property to specify the skipped bytes in OOB
  [2] Associate the preferred value with compatible
  [3] Hard-code the default value in the driver

At that time, [3] was chosen because I did not have enough information
about the other platforms than UniPhier.

That commit also says "The preferred value may vary by platform. If so,
please trade up to a different solution." My intention was to replace
[3] with [2], not keep both [2] and [3].

Now that we have switched to [2] for SOCFPGA's SPARE_AREA_SKIP_BYTES=2,
[3] should be removed. This should be OK because denali_pci.c just
gets back to the original behavior.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:33 +01:00
Masahiro Yamada 711fafc287 mtd: rawnand: denali_dt: add reset controlling
According to the Denali NAND Flash Memory Controller User's Guide,
this IP has two reset signals.

  rst_n:     reset most of FFs in the controller core
  reg_rst_n: reset all FFs in the register interface, and in the
             initialization sequencer

This commit supports controlling those reset signals.

It is possible to control them separately from the IP point of view
although they might be often tied up together in actual SoC integration.

The IP spec says, asserting only the reg_rst_n without asserting rst_n
will cause unpredictable behavior in the controller. So, the driver
deasserts ->rst_reg and ->rst in this order.

Another thing that should be kept in mind is the automated initialization
sequence (a.k.a. 'bootstrap' process) is kicked off when reg_rst_n is
deasserted.

When the reset is deasserted, the controller issues a RESET command
to the chip select 0, and attempts to read out the chip ID, and further
more, ONFI parameters if it is an ONFI-compliant device. Then, the
controller sets up the relevant registers based on the detected
device parameters.

This process might be useful for tiny boot firmware, but is redundant
for Linux Kernel because nand_scan_ident() probes devices and sets up
parameters accordingly. Rather, this hardware feature is annoying
because it ends up with misdetection due to bugs.

So, commit 0615e7ad5d ("mtd: nand: denali: remove Toshiba and Hynix
specific fixup code") changed the driver to not rely on it.

However, there is no way to prevent it from running. The IP provides
the 'bootstrap_inhibit_init' port to suppress this sequence, but it is
usually out of software control, and dependent on SoC implementation.
As for the Socionext UniPhier platform, LD4 always enables it. For the
later SoCs, the bootstrap sequence runs depending on the boot mode.

I added usleep_range() to make the driver wait until the sequence
finishes. Otherwise, the driver would fail to detect the chip due
to the race between the driver and hardware-controlled sequence.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:33 +01:00
Masahiro Yamada 48aad493e3 dt-bindings: mtd: denali_dt: document reset property
According to the Denali NAND Flash Memory Controller User's Guide,
this IP has two reset signals.

  rst_n:     reset most of FFs in the controller core
  reg_rst_n: reset all FFs in the register interface, and in the
             initialization sequencer

This commit specifies these reset signals.

It is possible to control them separately from the IP point of view
although they might be often tied up together in actual SoC integration.

At least for the upstream platforms, Altera/Intel SOCFPGA and Socionext
UniPhier, the reset controller seems to provide only 1-bit control for
the NAND controller. If it is the case, the resets property should
reference to the same phandles for "nand" and "reg" resets, like this:

    resets = <&nand_rst>, <&nand_rst>;
    reset-names = "nand", "reg";

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:33 +01:00
Marek Vasut f5561a7c42 mtd: rawnand: denali_dt: Add support for configuring SPARE_AREA_SKIP_BYTES
The SPARE_AREA_SKIP_BYTES register is reset when the controller reset
signal is toggled. Yet, this register must be configured to match the
content of the NAND OOB area. The current default value is always set
to 8 and is programmed into the hardware in case the hardware was not
programmed before (e.g. in a bootloader) with a different value. This
however does not work when the block is reset properly by Linux.

On Altera SoCFPGA CycloneV, ArriaV and Arria10, which are the SoCFPGA
platforms which support booting from NAND, the SPARE_AREA_SKIP_BYTES
value must be set to 2. On Socionext Uniphier, the value is 8. This
patch adds support for preconfiguring the default value and handles
the special SoCFPGA case by setting the default to 2 on all SoCFPGA
platforms, while retaining the original behavior and default value of
8 on all the other platforms.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
To: linux-mtd@lists.infradead.org
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:33 +01:00
Masahiro Yamada 8234820138 mtd: rawnand: denali_dt: error out if platform has no associated data
denali->ecc_caps is a mandatory parameter. If it were left unset,
nand_ecc_choose_conf() would end up with NULL pointer access.

So, every compatible must be associated with proper denali_dt_data.
If of_device_get_match_data() returns NULL, let it fail immediately.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:33 +01:00
Florian Fainelli 393947e582 mtd: rawnand: brcmnand: Set appropriate DMA mask
NAND controllers >= 7.0 with FLASH_DMA support physical addresses up to
40-bit, set an appropriate DMA mask for that purpose.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:33 +01:00
Nathan Chancellor 0e7ca83e82 mtd: onenand_base: Adjust indentation in onenand_read_ops_nolock
Clang warns:

../drivers/mtd/nand/onenand/onenand_base.c:1269:3: warning: misleading
indentation; statement is not part of the previous 'if'
[-Wmisleading-indentation]
        while (!ret) {
        ^
../drivers/mtd/nand/onenand/onenand_base.c:1266:2: note: previous
statement is here
        if (column + thislen > writesize)
        ^
1 warning generated.

This warning occurs because there is a space before the tab of the while
loop. There are spaces at the beginning of a lot of the lines in this
block, remove them so that the indentation is consistent with the Linux
kernel coding style and clang no longer warns.

Fixes: a8de85d557 ("[MTD] OneNAND: Implement read-while-load")
Link: https://github.com/ClangBuiltLinux/linux/issues/794
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:32 +01:00
zhengbin 73b265ae7b mtd: rawnand: mpc5121: Remove unneeded semicolon
Fixes coccicheck warning:

drivers/mtd/nand/raw/mpc5121_nfc.c:441:2-3: Unneeded semicolon

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 20:00:16 +01:00
Chen Wandun 75b3ff79c5 mtd: onenand: samsung: remove set but not used variable
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/mtd/nand/onenand/samsung_mtd.c: In function s3c_onenand_check_lock_status:
drivers/mtd/nand/onenand/samsung_mtd.c:731:6: warning: variable tmp set but not used [-Wunused-but-set-variable]

Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 19:59:34 +01:00
Krzysztof Kozlowski 296a32b54a mtd: onenand: Fix Kconfig indentation
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
	$ sed -e 's/^        /\t/' -i */Kconfig

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2020-01-21 19:59:34 +01:00
Michael Walle ccfb9299a0
mtd: spi-nor: Add support for at25sl321
This was tested in single, dual and quad mode on a custom board with the
NXP FlexSPI controller.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
2020-01-19 08:45:55 +02:00
Michael Walle f3418718c0
mtd: spi-nor: Add support for w25q32jwm
Add support for the Winbond W25Q32JW-xM flashes. These have a
programmable QE bit. There is also the W25Q32JW-xQ variant which shares
the ID with the W25Q32DW and W25Q32FW parts. The W25Q32JW-xQ has the QE
bit hard strapped to 1, thus don't support the /HOLD and /WP pins.

This was tested in single, dual and quad mode on a custom board with the
NXP FlexSPI controller. Also the BP bits as well as the TB bit were
tested.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
2020-01-19 08:33:02 +02:00
Michael Walle 52bbd2dcb4
mtd: spi-nor: remove unused enum spi_nor_ops
The ops aren't used in any SPI NOR controller. Therefore, remove them
altogether.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
2020-01-14 19:28:00 +02:00
Mika Westerberg 701a1676f3
mtd: spi-nor: intel-spi: Add support for Intel Comet Lake-V SPI serial flash
Intel Comet Lake-V has the same SPI serial flash controller as Kaby
Lake. Add Comet Lake-V 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>
2020-01-13 12:24:13 +02:00
Linus Torvalds b3a987b026 Linux 5.5-rc6 2020-01-12 16:55:08 -08:00
Linus Torvalds 373adb7313 RISC-V updates for v5.5-rc6
Two fixes for RISC-V:
 
 - Clear FP registers during boot when FP support is present, rather than
   when they aren't present
 
 - Move the header files associated with the SiFive L2 cache controller
   to drivers/soc (where the code was recently moved)
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Merge tag 'riscv/for-v5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Paul Walmsley:
 "Two fixes for RISC-V:

   - Clear FP registers during boot when FP support is present, rather
     than when they aren't present

   - Move the header files associated with the SiFive L2 cache
     controller to drivers/soc (where the code was recently moved)"

* tag 'riscv/for-v5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Fixup obvious bug for fp-regs reset
  riscv: move sifive_l2_cache.h to include/soc
2020-01-12 16:48:39 -08:00
Guo Ren dc6fcba72f riscv: Fixup obvious bug for fp-regs reset
CSR_MISA is defined in Privileged Architectures' spec: 3.1.1 Machine
ISA Register misa. Every bit:1 indicate a feature, so we should beqz
reset_done when there is no F/D bit in csr_misa register.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
[paul.walmsley@sifive.com: fix typo in commit message]
Fixes: 9e80635619 ("riscv: clear the instruction cache and all registers when booting")
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2020-01-12 10:12:44 -08:00
Yash Shah 13cf4cf030 riscv: move sifive_l2_cache.h to include/soc
The commit 9209fb5189 ("riscv: move sifive_l2_cache.c to drivers/soc")
moves the sifive L2 cache driver to driver/soc. It did not move the
header file along with the driver. Therefore this patch moves the header
file to driver/soc

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
[paul.walmsley@sifive.com: updated to fix the include guard]
Fixes: 9209fb5189 ("riscv: move sifive_l2_cache.c to drivers/soc")
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2020-01-12 10:12:44 -08:00
Linus Torvalds 040a3c3362 IOMMU Fixes for Linux v5.5-rc5
Including:
 
 	- Two fixes for VT-d and generic IOMMU code to fix teardown on
 	  error handling code paths.
 
 	- Patch for the Intel VT-d driver to fix handling of non-PCI
 	  devices
 
 	- Fix W=1 compile warning in dma-iommu code
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Merge tag 'iommu-fixes-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - Two fixes for VT-d and generic IOMMU code to fix teardown on error
   handling code paths.

 - Patch for the Intel VT-d driver to fix handling of non-PCI devices

 - Fix W=1 compile warning in dma-iommu code

* tag 'iommu-fixes-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/dma: fix variable 'cookie' set but not used
  iommu/vt-d: Unlink device if failed to add to group
  iommu: Remove device link to group on failure
  iommu/vt-d: Fix adding non-PCI devices to Intel IOMMU
2020-01-12 09:35:42 -08:00
Linus Torvalds 6327edceb6 Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Two driver bugfixes, a documentation fix, and a removal of a spec
  violation for the bus recovery algorithm in the core"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: fix bus recovery stop mode timing
  i2c: bcm2835: Store pointer to bus clock
  dt-bindings: i2c: at91: fix i2c-sda-hold-time-ns documentation for sam9x60
  i2c: at91: fix clk_offset for sam9x60
2020-01-11 15:40:43 -08:00
Linus Torvalds 606e9ad200 clone3-tls-v5.5-rc6
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Merge tag 'clone3-tls-v5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

Pull thread fixes from Christian Brauner:
 "This contains a series of patches to fix CLONE_SETTLS when used with
  clone3().

  The clone3() syscall passes the tls argument through struct clone_args
  instead of a register. This means, all architectures that do not
  implement copy_thread_tls() but still support CLONE_SETTLS via
  copy_thread() expecting the tls to be located in a register argument
  based on clone() are currently unfortunately broken. Their tls value
  will be garbage.

  The patch series fixes this on all architectures that currently define
  __ARCH_WANT_SYS_CLONE3. It also adds a compile-time check to ensure
  that any architecture that enables clone3() in the future is forced to
  also implement copy_thread_tls().

  My ultimate goal is to get rid of the copy_thread()/copy_thread_tls()
  split and just have copy_thread_tls() at some point in the not too
  distant future (Maybe even renaming copy_thread_tls() back to simply
  copy_thread() once the old function is ripped from all arches). This
  is dependent now on all arches supporting clone3().

  While all relevant arches do that now there are still four missing:
  ia64, m68k, sh and sparc. They have the system call reserved, but not
  implemented. Once they all implement clone3() we can get rid of
  ARCH_WANT_SYS_CLONE3 and HAVE_COPY_THREAD_TLS.

  This series also includes a minor fix for the arm64 uapi headers which
  caused __NR_clone3 to be missing from the exported user headers.

  Unfortunately the series came in a little late especially given that
  it touches a range of architectures. Due to the holidays not all arch
  maintainers responded in time probably due to their backlog. Will and
  Arnd have thankfully acked the arm specific changes.

  Given that the changes are straightforward and rather minimal combined
  with the fact the that clone3() with CLONE_SETTLS is broken I decided
  to send them post rc3 nonetheless"

* tag 'clone3-tls-v5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  um: Implement copy_thread_tls
  clone3: ensure copy_thread_tls is implemented
  xtensa: Implement copy_thread_tls
  riscv: Implement copy_thread_tls
  parisc: Implement copy_thread_tls
  arm: Implement copy_thread_tls
  arm64: Implement copy_thread_tls
  arm64: Move __ARCH_WANT_SYS_CLONE3 definition to uapi headers
2020-01-11 15:33:48 -08:00
Linus Torvalds ac61145a72 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fix from Jiri Kosina:
 "A regression fix for EPOLLOUT handling in hidraw and uhid"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: hidraw, uhid: Always report EPOLLOUT
2020-01-10 13:41:16 -08:00
Linus Torvalds 213356fe98 USB/PHY fixes for 5.5-rc6
Here are a number of USB and PHY driver fixes for 5.5-rc6
 
 Nothing all that unusual, just the a bunch of small fixes for a lot of
 different reported issues.  The PHY driver fixes are in here as they
 interacted with the usb drivers.
 
 Full details of the patches are in the shortlog, and all of these have
 been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY fixes from Greg KH:
 "Here are a number of USB and PHY driver fixes for 5.5-rc6

  Nothing all that unusual, just the a bunch of small fixes for a lot of
  different reported issues. The PHY driver fixes are in here as they
  interacted with the usb drivers.

  Full details of the patches are in the shortlog, and all of these have
  been in linux-next with no reported issues"

* tag 'usb-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (24 commits)
  usb: missing parentheses in USE_NEW_SCHEME
  usb: ohci-da8xx: ensure error return on variable error is set
  usb: musb: Disable pullup at init
  usb: musb: fix idling for suspend after disconnect interrupt
  usb: typec: ucsi: Fix the notification bit offsets
  USB: Fix: Don't skip endpoint descriptors with maxpacket=0
  USB-PD tcpm: bad warning+size, PPS adapters
  phy/rockchip: inno-hdmi: round clock rate down to closest 1000 Hz
  usb: chipidea: host: Disable port power only if previously enabled
  usb: cdns3: should not use the same dev_id for shared interrupt handler
  usb: dwc3: gadget: Fix request complete check
  usb: musb: dma: Correct parameter passed to IRQ handler
  usb: musb: jz4740: Silence error if code is -EPROBE_DEFER
  usb: udc: tegra: select USB_ROLE_SWITCH
  USB: core: fix check for duplicate endpoints
  phy: cpcap-usb: Drop extra write to usb2 register
  phy: cpcap-usb: Improve host vs docked mode detection
  phy: cpcap-usb: Prevent USB line glitches from waking up modem
  phy: mapphone-mdm6600: Fix uninitialized status value regression
  phy: cpcap-usb: Fix flakey host idling and enumerating of devices
  ...
2020-01-10 13:29:40 -08:00
Linus Torvalds 9fb7007de8 Char/Misc patch for 5.5-rc6
Here is a single fix, for the chrdev core, for 5.5-rc6
 
 There's been a long-standing race condition triggered by syzbot, and
 occasionally real people, in the chrdev open() path.  Will finally took
 the time to track it down and fix it for real before the holidays.
 
 Here's that one patch, it's been in linux-next for a while with no
 reported issues and it does fix the reported problem.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc fix from Greg KH:
 "Here is a single fix, for the chrdev core, for 5.5-rc6

  There's been a long-standing race condition triggered by syzbot, and
  occasionally real people, in the chrdev open() path. Will finally took
  the time to track it down and fix it for real before the holidays.

  Here's that one patch, it's been in linux-next for a while with no
  reported issues and it does fix the reported problem"

* tag 'char-misc-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  chardev: Avoid potential use-after-free in 'chrdev_open()'
2020-01-10 13:25:24 -08:00
Linus Torvalds 7da37cd052 Staging fixes for 5.5-rc6
Here are some small staging driver fixes for 5.5-rc6.
 
 Nothing major here, just some small fixes for a comedi driver, the
 vt6656 driver, and a new device id for the rtl8188eu driver.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging fixes from Greg KH:
 "Here are some small staging driver fixes for 5.5-rc6.

  Nothing major here, just some small fixes for a comedi driver, the
  vt6656 driver, and a new device id for the rtl8188eu driver.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: rtl8188eu: Add device code for TP-Link TL-WN727N v5.21
  staging: comedi: adv_pci1710: fix AI channels 16-31 for PCI-1713
  staging: vt6656: set usb_set_intfdata on driver fail.
  staging: vt6656: remove bool from vnt_radio_power_on ret
  staging: vt6656: limit reg output to block size
  staging: vt6656: correct return of vnt_init_registers.
  staging: vt6656: Fix non zero logical return of, usb_control_msg
2020-01-10 13:22:11 -08:00
Linus Torvalds 5a96c0bbff TTY/Serial fixes for 5.5-rc6
Here are two tty/serial driver fixes for 5.5-rc6.
 
 The first fixes a much much reported issue with a previous tty port link
 patch that is in your tree, and the second fixes a problem where the
 serdev driver would claim ACPI devices that it shouldn't be claiming.
 
 Both have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
 "Here are two tty/serial driver fixes for 5.5-rc6.

  The first fixes a much much reported issue with a previous tty port
  link patch that is in your tree, and the second fixes a problem where
  the serdev driver would claim ACPI devices that it shouldn't be
  claiming.

  Both have been in linux-next for a while with no reported issues"

* tag 'tty-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  serdev: Don't claim unsupported ACPI serial devices
  tty: always relink the port
2020-01-10 13:17:21 -08:00
Linus Torvalds 4e4cd21c64 block-5.5-2020-01-10
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Merge tag 'block-5.5-2020-01-10' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A few fixes that should go into this round.

  This pull request contains two NVMe fixes via Keith, removal of a dead
  function, and a fix for the bio op for read truncates (Ming)"

* tag 'block-5.5-2020-01-10' of git://git.kernel.dk/linux-block:
  nvmet: fix per feat data len for get_feature
  nvme: Translate more status codes to blk_status_t
  fs: move guard_bio_eod() after bio_set_op_attrs
  block: remove unused mp_bvec_last_segment
2020-01-10 12:05:26 -08:00
Linus Torvalds 30b6487d15 io_uring-5.5-2020-01-10
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Merge tag 'io_uring-5.5-2020-01-10' of git://git.kernel.dk/linux-block

Pull io_uring fix from Jens Axboe:
 "Single fix for this series, fixing a regression with the short read
  handling.

  This just removes it, as it cannot safely be done for all cases"

* tag 'io_uring-5.5-2020-01-10' of git://git.kernel.dk/linux-block:
  io_uring: remove punt of short reads to async context
2020-01-10 12:03:12 -08:00
Linus Torvalds 4936ce17bf MTD:
* sm_ftl: Fix NULL pointer warning.
 
 Raw NAND:
 * Cadence: fix compile testing.
 * STM32: Avoid locking.
 
 Onenand:
 * Fix several sparse/build warnings.
 
 SPI-NOR:
 * Add a flag to fix interaction with Micron parts.
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Merge tag 'mtd/fixes-for-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD fixes from Miquel Raynal:
 "MTD:
   - sm_ftl: Fix NULL pointer warning.

  Raw NAND:
   - Cadence: fix compile testing.
   - STM32: Avoid locking.

  Onenand:
   - Fix several sparse/build warnings.

  SPI-NOR:
   - Add a flag to fix interaction with Micron parts"

* tag 'mtd/fixes-for-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: spi-nor: Fix the writing of the Status Register on micron flashes
  mtd: sm_ftl: fix NULL pointer warning
  mtd: onenand: omap2: Pass correct flags for prep_dma_memcpy
  mtd: onenand: samsung: Fix iomem access with regular memcpy
  mtd: onenand: omap2: Fix errors in style
  mtd: cadence: Fix cast to pointer from integer of different size warning
  mtd: rawnand: stm32_fmc2: avoid to lock the CPU bus
2020-01-10 11:57:10 -08:00
Linus Torvalds b1d198c08c sound fixes for 5.5-rc6
A few piled ASoC fixes and usual HD-audio and USB-audio fixups.
 Some of them are for ASoC core, but rather about error-handling.
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Merge tag 'sound-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A few piled ASoC fixes and usual HD-audio and USB-audio fixups. Some
  of them are for ASoC core error-handling"

* tag 'sound-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda: enable regmap internal locking
  ALSA: hda/realtek - Add quirk for the bass speaker on Lenovo Yoga X1 7th gen
  ALSA: hda/realtek - Set EAPD control to default for ALC222
  ALSA: usb-audio: Apply the sample rate quirk for Bose Companion 5
  ALSA: hda/realtek - Add new codec supported for ALCS1200A
  ASoC: Intel: boards: Fix compile-testing RT1011/RT5682
  ASoC: SOF: imx8: Fix dsp_box offset
  ASoC: topology: Prevent use-after-free in snd_soc_get_pcm_runtime()
  ASoC: fsl_audmix: add missed pm_runtime_disable
  ASoC: stm32: spdifrx: fix input pin state management
  ASoC: stm32: spdifrx: fix race condition in irq handler
  ASoC: stm32: spdifrx: fix inconsistent lock state
  ASoC: core: Fix access to uninitialized list heads
  ASoC: soc-core: Set dpcm_playback / dpcm_capture
  ASoC: SOF: imx8: fix memory allocation failure check on priv->pd_dev
  ASoC: SOF: Intel: hda: hda-dai: fix oops on hda_link .hw_free
  ASoC: SOF: fix fault at driver unload after failed probe
2020-01-10 11:52:36 -08:00
Linus Torvalds 658e1af5ee - Fix backward compatibility with old DTBs on QCOM tsens (Amit Kucheria)
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Merge tag 'thermal-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux

Pull thermal fix from Daniel Lezcano:
 "Fix backward compatibility with old DTBs on QCOM tsens (Amit
  Kucheria)"

* tag 'thermal-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
  drivers: thermal: tsens: Work with old DTBs
2020-01-10 11:48:37 -08:00
Linus Torvalds c23e744b59 Power management fixes for 5.5-rc6
Prevent the cpufreq-dt driver from probing Tegra20/30 (Dmitry Osipenko)
 and prevent the Intel RAPL power capping driver from crashing during
 CPU initialization due to a NULL pointer dereference if the processor
 model in use is not known to it (Harry Pan).
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Merge tag 'pm-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "Prevent the cpufreq-dt driver from probing Tegra20/30 (Dmitry
  Osipenko) and prevent the Intel RAPL power capping driver from
  crashing during CPU initialization due to a NULL pointer dereference
  if the processor model in use is not known to it (Harry Pan)"

* tag 'pm-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  powercap: intel_rapl: add NULL pointer check to rapl_mmio_cpu_online()
  cpufreq: dt-platdev: Blacklist NVIDIA Tegra20 and Tegra30 SoCs
2020-01-10 11:46:59 -08:00
John Garry 80f64cef41
mtd: spi-nor: hisi-sfc: Try to provide some clarity on which SFC we are
The driver is for the HiSilicon FMC (Flash Memory Controller), which
supports SPI NOR in addition other memory technologies, like SPI NAND.

Indeed, the naming in the driver is a little inappropriate, especially
considering that there is already another HiSilicon SPI NOR flash
controller (which I believe the FMC is derived from).

Since we now want to provide software support for this other HiSilicon
controller, update code comments to at least try to make it clear that
this driver is for the FMC.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
2020-01-10 19:04:30 +02:00
Joseph Kust 67de34c20f
mtd: spi-nor: Add support for sst26vf016b
Adds support for sst26vf016b, a smaller variant of the sst26vf064b.
Tested on a sama5d3 SOC using the atmel,at91rm9200-spi controller.
The dual read could not be tested.

SPI_NOR_QUAD_READ is not added because it requires that the IOC bit
from the Configuration Register to be set to 1, which is not the case:
its default value at power-up is zero and we don't set it to one in
spi-nor either.

Signed-off-by: Joseph Kust <joseph.kust@rockwellcollins.com>
Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com>
[tudor.ambarus@microchip.com: Drop quad read flag, amend commit description]
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
2020-01-10 19:02:00 +02:00