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As per IFC binding, Absence of "little-endian" field causes registers
access in big-endian mode.
So no need to set explicit big-endian field IFC node for LS1043A and
LS1046A.
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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NOR and IFC controller connectivity is big-endian.
So add big-endian field in nor device tree node allowing
IFC controller to read/write data from/to the flash correctly.
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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This patch enables i.MX6SX SDB board's below GPIO buttons
as wakeup sources:
SW4(FUNC1): KEY_VOLUMEUP
SW5(FUNC2): KEY_VOLUMEDOWN
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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This patch enables i.MX7D SDB board's below GPIO buttons
as wakeup sources:
S1(FUNC1): KEY_VOLUMEUP
S3(FUNC2): KEY_VOLUMEDOWN
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Adopt the SPDX license identifier headers to ease
license compliance management.
Signed-off-by: Pierre-Jean Texier <texier.pj2@gmail.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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NOR and IFC controller connectivity is big-endian.
So add big-endian field in nor device tree node allowing
IFC controller to read/write data from/to the flash correctly.
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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This patch adds missing compatible for i.MX boards.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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i.MX6ULL is a lite version of i.MX6UL, its full name
is i.MX6 UltraLiteLite, NOT UlltraLite.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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i.MX6SLL has GPIO clock gates in CCM CCGR, add
clock property for GPIO driver to make sure all
GPIO banks work as expected.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add weim node for i.MX6UL SOC.
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Signals available on both i.MX6UL and i.MX6ULL should have the same name
because it is the case of all others common signals, it avoids to make
mistakes (use the wrong ones) and it makes writing device tree files
less complicated. For example:
imx6ul-imx6ull-board.dtsi:
...
pinctrl_uart5: uart5grp {
fsl,pins = <
MX6UL_PAD_UART5_TX_DATA__UART5_DCE_TX 0x1b0b1
MX6UL_PAD_UART5_RX_DATA__UART5_DCE_RX 0x1b0b1
>;
};
imx6ul-board.dts:
#include <imx6ul.dtsi>
#include <imx6ul-imx6ull-board.dtsi>
...
imx6ull-board.dts:
#include <imx6ull.dtsi>
#include <imx6ul-imx6ull-board.dtsi>
...
Without this patch, the imx6ull-board.dtb will use
MX6UL_PAD_UART5_RX_DATA__UART5_DCE_RX instead of
MX6ULL_PAD_UART5_RX_DATA__UART5_DCE_RX and the uart5 will be
misconfigured.
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Setting a stdout-path in the .dtb is convenient because then the user
gets a serial console on the RS-232 connector without any extra effort
of figuring out the relevant 'console=' boot parameter.
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The WaRP7 has one mikroBUS socket on the back to plug click boards.
This patch allows to interact with some of these
i2c modules (EEPROM, RTC and so on).
Signed-off-by: Pierre-Jean Texier <texier.pj2@gmail.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The "EDIMM STARTER KIT i.Core 1.5 MIPI Evaluation" is based on the 1.5 version
of the i.Core MX6 cpu module. The 1.5 version differs from the original one for
a few details, including the ethernet PHY interface clock provider.
With this commit, the ethernet interface works properly:
SMSC LAN8710/LAN8720 2188000.ethernet-1:00: attached PHY driver
While before using the 1.5 version, ethernet failed to startup do to un-clocked
PHY interface:
fec 2188000.ethernet eth0: could not attach to PHY
Fixes: 3fe088357731 ("ARM: dts: imx6q: Add Engicam i.CoreM6 1.5 Quad/Dual MIPI starter kit support")
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The 1.5 version of Engicam's i.Core MX6 CPU module features a different clock
provider for the ethernet's PHY interface. Adjust the FEC ptp clock to
reference CLK_ENET_REF clock source, and set SION bit of
MX6QDL_PAD_GPIO_16__ENET_REF_CLK to adjust the input path of that pin.
The newly introduced imx6ql-icore-1.5.dtsi allows to collect in a single
place differences between version '1.0' and '1.5' of the module.
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Gives substantial performance improvement for transfers larger than 16
bytes (DMA_THRESHOLD). Smaller transfers are unaffected.
Signed-off-by: Esben Haabendal <eha@deif.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Use consistent pinctrl node names for Engicam dt files,
sufix 'grp' look consistent than actual node name
- pinctrl_gpmi_nand: gpmi-nand {
+ pinctrl_gpmi_nand: gpminandgrp {
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Move usdhc2 and gpmi along with pinctrl nodes on
imx6ul-isiot.dtsi from dts files and mark it as 'disabled'
and the relevant dts will enable the status as 'okay'
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Adopt the SPDX license identifier headers to ease license compliance
management.
Also added Engicam Copyright on missing files.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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System poweroff is already supported by PSCI on i.MX7D,
remove "snvs_poweroff" node to avoid below debug message
from syscon-poweroff driver:
[ 1.831414] syscon-poweroff 30370000.snvs:snvs-poweroff: pm_power_off already claimed (ptrval) psci_sys_poweroff
[ 1.841707] syscon-poweroff: probe of 30370000.snvs:snvs-poweroff failed with error -16
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Define the Messaging Unit (MU) for i.MX7 in the processor's dtsi.
The respective driver is added in the next commit.
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The i.MX7ULP B0 chip has some pin changes for USB and VIU
module, update pinfunc header file accordingly.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The MC13892 Analog-to-Digital input pins (ADIN5-7) are exposed on the
imx51-babbage board.
Pass the "fsl,mc13xxx-uses-adc" property so that the MC13892 ADC
block can work.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add "gpio-ranges" property to establish connections between GPIOs
and PINs on i.MX6SLL pinctrl driver, for details, please refer to
Documentation/devicetree/bindings/gpio/gpio.txt of "gpio-ranges"
property.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The pinmux name and label for a specific function should denote which
pingroup it is on, or if there is only one option for the function, have
not enumerating prefix/suffix at all.
The "r_i2c_pins_a" label is renamed to "r_i2c_pl89_pins" to fit our
current style. The node name "i2c" is also changed to "r-i2c-pl89-pins"
to match. The reason for the peculiar name is that the other option for
muxing R_I2C is on the PL0/PL1 pins, so the name has to mention the pin
numbers in addition to the pingroup.
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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The pinmux name and label for a specific function should denote which
pingroup it is on, or if there is only one option for the function, have
not enumerating prefix/suffix at all.
The "uart0_pins_a" label is renamed to "uart0_pb_pins" to fit our
current style. The node name "uart0" is also changed to "uart0-pb-pins"
to match.
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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The eMMC 5.0 standard introduced the data strobe (DS) pin. This pin is
not used for pre-5.0 data modes, nor is it found on pre-5.0 eMMC chips.
On the A64, this pin is muxed with spi0's MISO pin. If the DS pin is
included in the mmc2 pinmux by default, this wil prevent the usage
of both mmc2 and spi0 together.
Instead, split out the DS pin to a separate pinmux that only gets used
by boards that actually have it wired up. Currently supported ones
include the Bananapi M64 and Pine64 Pinebook. These are fixed up.
Fixes: a3e8f4926248 ("arm64: allwinner: a64: Add MMC pinctrl nodes")
Fixes: b8bcf0e1b212 ("arm64: allwinner: add BananaPi-M64 support")
Fixes: df35fbcfa398 ("arm64: dts: allwinner: add support for Pinebook")
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
"A couple of new helper functions in preparation for some tree wide
clean-ups.
I'm sending these new helpers now for rc2 in order to simplify the
dependencies on subsequent cleanups across the tree in 4.20"
* tag 'devicetree-fixes-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: Add device_type access helper functions
of: add node name compare helper functions
of: add helper to lookup compatible child node
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"First batch of fixes post-merge window:
- A handful of devicetree changes for i.MX2{3,8} to change over to
new panel bindings. The platforms were moved from legacy
framebuffers to DRM and some development board panels hadn't yet
been converted.
- OMAP fixes related to ti-sysc driver conversion fallout, fixing
some register offsets, no_console_suspend fixes, etc.
- Droid4 changes to fix flaky eMMC probing and vibrator DTS mismerge.
- Fixed 0755->0644 permissions on a newly added file.
- Defconfig changes to make ARM Versatile more useful with QEMU
(helps testing).
- Enable defconfig options for new TI SoC platform that was merged
this window (AM6)"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm64: defconfig: Enable TI's AM6 SoC platform
ARM: defconfig: Update the ARM Versatile defconfig
ARM: dts: omap4-droid4: Fix emmc errors seen on some devices
ARM: dts: Fix file permission for am335x-osd3358-sm-red.dts
ARM: imx_v6_v7_defconfig: Select CONFIG_DRM_PANEL_SEIKO_43WVF1G
ARM: mxs_defconfig: Select CONFIG_DRM_PANEL_SEIKO_43WVF1G
ARM: dts: imx23-evk: Convert to the new display bindings
ARM: dts: imx23-evk: Move regulators outside simple-bus
ARM: dts: imx28-evk: Convert to the new display bindings
ARM: dts: imx28-evk: Move regulators outside simple-bus
Revert "ARM: dts: imx7d: Invert legacy PCI irq mapping"
arm: dts: am4372: setup rtc as system-power-controller
ARM: dts: omap4-droid4: fix vibrations on Droid 4
bus: ti-sysc: Fix no_console_suspend handling
bus: ti-sysc: Fix module register ioremap for larger offsets
ARM: OMAP2+: Fix module address for modules using mpu_rt_idx
ARM: OMAP2+: Fix null hwmod for ti-sysc debug
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"Speculation:
- Make the microcode check more robust
- Make the L1TF memory limit depend on the internal cache physical
address space and not on the CPUID advertised physical address
space, which might be significantly smaller. This avoids disabling
L1TF on machines which utilize the full physical address space.
- Fix the GDT mapping for EFI calls on 32bit PTI
- Fix the MCE nospec implementation to prevent #GP
Fixes and robustness:
- Use the proper operand order for LSL in the VDSO
- Prevent NMI uaccess race against CR3 switching
- Add a lockdep check to verify that text_mutex is held in
text_poke() functions
- Repair the fallout of giving native_restore_fl() a prototype
- Prevent kernel memory dumps based on usermode RIP
- Wipe KASAN shadow stack before rewinding the stack to prevent false
positives
- Move the AMS GOTO enforcement to the actual build stage to allow
user API header extraction without a compiler
- Fix a section mismatch introduced by the on demand VDSO mapping
change
Miscellaneous:
- Trivial typo, GCC quirk removal and CC_SET/OUT() cleanups"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/pti: Fix section mismatch warning/error
x86/vdso: Fix lsl operand order
x86/mce: Fix set_mce_nospec() to avoid #GP fault
x86/efi: Load fixmap GDT in efi_call_phys_epilog()
x86/nmi: Fix NMI uaccess race against CR3 switching
x86: Allow generating user-space headers without a compiler
x86/dumpstack: Don't dump kernel memory based on usermode RIP
x86/asm: Use CC_SET()/CC_OUT() in __gen_sigismember()
x86/alternatives: Lockdep-enforce text_mutex in text_poke*()
x86/entry/64: Wipe KASAN stack shadow before rewind_stack_do_exit()
x86/irqflags: Mark native_restore_fl extern inline
x86/build: Remove jump label quirk for GCC older than 4.5.2
x86/Kconfig: Fix trivial typo
x86/speculation/l1tf: Increase l1tf memory limit for Nehalem+
x86/spectre: Add missing family 6 check to microcode check
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug fix from Thomas Gleixner:
"Remove the stale skip_onerr member from the hotplug states"
* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Remove skip_onerr field from cpuhp_step structure
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core fixes from Thomas Gleixner:
"A small set of updates for core code:
- Prevent tracing in functions which are called from trace patching
via stop_machine() to prevent executing half patched function trace
entries.
- Remove old GCC workarounds
- Remove pointless includes of notifier.h"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Remove workaround for unreachable warnings from old GCC
notifier: Remove notifier header file wherever not used
watchdog: Mark watchdog touch functions as notrace
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Fix the section mismatch warning in arch/x86/mm/pti.c:
WARNING: vmlinux.o(.text+0x6972a): Section mismatch in reference from the function pti_clone_pgtable() to the function .init.text:pti_user_pagetable_walk_pte()
The function pti_clone_pgtable() references
the function __init pti_user_pagetable_walk_pte().
This is often because pti_clone_pgtable lacks a __init
annotation or the annotation of pti_user_pagetable_walk_pte is wrong.
FATAL: modpost: Section mismatches detected.
Fixes: 85900ea51577 ("x86/pti: Map the vsyscall page if needed")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/43a6d6a3-d69d-5eda-da09-0b1c88215a2a@infradead.org
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Fixes for omap variants against v4.19-rc1
These are mostly fixes related to using ti-sysc interconnect target module
driver for accessing right register offsets for sgx and cpsw and for
no_console_suspend regression.
There is also a droid4 emmc fix where emmc may not get detected for some
models, and vibrator dts mismerge fix.
And we have a file permission fix for am335x-osd3358-sm-red.dts that
just got added. And we must tag RTC as system-power-controller for
am437x for PMIC to shut down during poweroff.
* tag 'omap-for-v4.19/fixes-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: omap4-droid4: Fix emmc errors seen on some devices
ARM: dts: Fix file permission for am335x-osd3358-sm-red.dts
arm: dts: am4372: setup rtc as system-power-controller
ARM: dts: omap4-droid4: fix vibrations on Droid 4
bus: ti-sysc: Fix no_console_suspend handling
bus: ti-sysc: Fix module register ioremap for larger offsets
ARM: OMAP2+: Fix module address for modules using mpu_rt_idx
ARM: OMAP2+: Fix null hwmod for ti-sysc debug
Signed-off-by: Olof Johansson <olof@lixom.net>
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In the __getcpu function, lsl is using the wrong target and destination
registers. Luckily, the compiler tends to choose %eax for both variables,
so it has been working so far.
Fixes: a582c540ac1b ("x86/vdso: Use RDPID in preference to LSL when available")
Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Andy Lutomirski <luto@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180901201452.27828-1-sneves@dei.uc.pt
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git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixlet from Wim Van Sebroeck:
"Document support for r8a774a1"
* tag 'linux-watchdog-4.19-rc2' of git://www.linux-watchdog.org/linux-watchdog:
dt-bindings: watchdog: renesas-wdt: Document r8a774a1 support
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Two small fixes, one for the x86 Stoney SoC to get a more accurate clk
frequency and the other to fix a bad allocation in the Nuvoton NPCM7XX
driver"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: x86: Set default parent to 48Mhz
clk: npcm7xx: fix memory allocation
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The trick with flipping bit 63 to avoid loading the address of the 1:1
mapping of the poisoned page while the 1:1 map is updated used to work when
unmapping the page. But it falls down horribly when attempting to directly
set the page as uncacheable.
The problem is that when the cache mode is changed to uncachable, the pages
needs to be flushed from the cache first. But the decoy address is
non-canonical due to bit 63 flipped, and the CLFLUSH instruction throws a
#GP fault.
Add code to change_page_attr_set_clr() to fix the address before calling
flush.
Fixes: 284ce4011ba6 ("x86/memory_failure: Introduce {set, clear}_mce_nospec()")
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Anvin <hpa@zytor.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Link: https://lkml.kernel.org/r/20180831165506.GA9605@agluck-desk
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Add 3 helpers so that pincontrol definitions for pxa25x and pxa27x are
easier, and can be easily converted from old mfp mach-pxa code to
devicetree.
An example of such conversion would be :
static unsigned long mioa701_pin_config[] = {
GPIO32_MMC_CLK,
GPIO92_MMC_DAT_0,
GPIO109_MMC_DAT_1,
GPIO110_MMC_DAT_2,
GPIO111_MMC_DAT_3,
GPIO112_MMC_CMD,
MIO_CFG_IN(GPIO78_SDIO_RO, AF0),
MIO_CFG_IN(GPIO15_SDIO_INSERT, AF0),
MIO_CFG_OUT(GPIO91_SDIO_EN, AF0, DRIVE_LOW),
};
into:
pinctrl_mmc_default: mmc-default {
PMMUX(sd-insert, 15, gpio_in);
PMMUX(mmclk, 32, MMCLK);
PMMUX(sd-ro, 78, gpio_in);
PMMUX_LPM_LOW(sd-enable, 91, gpio_out);
PMMUX(mmdat0, 92, MMDAT<0>);
PMMUX(mmdat1, 109, MMDAT<1>);
PMMUX(mmdat2, 110, MMDAT<2>);
PMMUX(mmdat3, 111, MMDAT<3>);
PMMUX(mmcmd, 112, MMCMD);
};
The third column of PMMUX*() helpers can be found in pincontrol muxing
functions, either in pinctrl-pxa27x.c (or pinctrl-pxa25x.c), or by
inspecting the pincontrol once booted in debugfs.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
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Most devices use Broadcom standard partitions which allows them to be
described with the "brcm,bcm947xx-cfe-partitions". Exceptions are:
1) TP-LINK devices which use "os-image" partition with TRX containing
kernel only + separated rootfs partition.
2) Asus RT-AC87U with custom "asus" partition.
This commit also removes undocumented and unsupported linux,part-probe
binding which got accidentally upstreamed while describing SPI
controller.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"A few arm64 fixes came in this week, specifically fixing some nasty
truncation of return values from firmware calls and resolving a
VM_BUG_ON due to accessing uninitialised struct pages corresponding to
NOMAP pages.
Summary:
- Fix typos in SVE documentation
- Fix type-checking and implicit truncation for SMCCC calls
- Force CONFIG_HOLES_IN_ZONE=y so that SLAB doesn't fall over NOMAP
regions"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mm: always enable CONFIG_HOLES_IN_ZONE
arm/arm64: smccc-1.1: Handle function result as parameters
arm/arm64: smccc-1.1: Make return values unsigned long
Documentation/arm64/sve: Couple of improvements and typos
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When PTI is enabled on x86-32 the kernel uses the GDT mapped in the fixmap
for the simple reason that this address is also mapped for user-space.
The efi_call_phys_prolog()/efi_call_phys_epilog() wrappers change the GDT
to call EFI runtime services and switch back to the kernel GDT when they
return. But the switch-back uses the writable GDT, not the fixmap GDT.
When that happened and and the CPU returns to user-space it switches to the
user %cr3 and tries to restore user segment registers. This fails because
the writable GDT is not mapped in the user page-table, and without a GDT
the fault handlers also can't be launched. The result is a triple fault and
reboot of the machine.
Fix that by restoring the GDT back to the fixmap GDT which is also mapped
in the user page-table.
Fixes: 7757d607c6b3 x86/pti: ('Allow CONFIG_PAGE_TABLE_ISOLATION for x86_32')
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: hpa@zytor.com
Cc: linux-efi@vger.kernel.org
Link: https://lkml.kernel.org/r/1535702738-10971-1-git-send-email-joro@8bytes.org
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
- minor cleanup avoiding a warning when building with new gcc
- a patch to add a new sysfs node for Xen frontend/backend drivers to
make it easier to obtain the state of a pv device
- two fixes for 32-bit pv-guests to avoid intermediate L1TF vulnerable
PTEs
* tag 'for-linus-4.19b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/xen: remove redundant variable save_pud
xen: export device state to sysfs
x86/pae: use 64 bit atomic xchg function in native_ptep_get_and_clear
x86/xen: don't write ptes directly in 32-bit PV guests
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k fix from Geert Uytterhoeven:
"Just a single fix for a bug introduced during the merge window: fix
wrong date and time on PMU-based Macs"
* tag 'm68k-for-v4.19-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k/mac: Use correct PMU response format
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
- regression fixes for i801 and designware
- better API and leak fix for releasing DMA safe buffers
- better greppable strings for the bitbang algorithm
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: sh_mobile: fix leak when using DMA bounce buffer
i2c: sh_mobile: define start_ch() void as it only returns 0 anyhow
i2c: refactor function to release a DMA safe buffer
i2c: algos: bit: make the error messages grepable
i2c: designware: Re-init controllers with pm_disabled set on resume
i2c: i801: Allow ACPI AML access I/O ports not reserved for SMBus
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A NMI can hit in the middle of context switching or in the middle of
switch_mm_irqs_off(). In either case, CR3 might not match current->mm,
which could cause copy_from_user_nmi() and friends to read the wrong
memory.
Fix it by adding a new nmi_uaccess_okay() helper and checking it in
copy_from_user_nmi() and in __copy_from_user_nmi()'s callers.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Rik van Riel <riel@surriel.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Jann Horn <jannh@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/dd956eba16646fd0b15c3c0741269dfd84452dac.1535557289.git.luto@kernel.org
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When bootstrapping an architecture, it's usual to generate the kernel's
user-space headers (make headers_install) before building a compiler. Move
the compiler check (for asm goto support) to the archprepare target so that
it is only done when building code for the target.
Fixes: e501ce957a78 ("x86: Force asm-goto")
Reported-by: Helmut Grohne <helmutg@debian.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180829194317.GA4765@decadent.org.uk
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show_opcodes() is used both for dumping kernel instructions and for dumping
user instructions. If userspace causes #PF by jumping to a kernel address,
show_opcodes() can be reached with regs->ip controlled by the user,
pointing to kernel code. Make sure that userspace can't trick us into
dumping kernel memory into dmesg.
Fixes: 7cccf0725cf7 ("x86/dumpstack: Add a show_ip() function")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Borislav Petkov <bp@suse.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: security@kernel.org
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20180828154901.112726-1-jannh@google.com
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There is one too many zeroes in the Power I2C base address. Fix this.
Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
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