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STM32 DT updates for v5.1, round 1
Highlights:
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MPU part:
-Enable Digital Thermal Sensor (dts) on stm32mp157c-ed1 (and so ev1).
MCU part:
-Add SPI support on stm32f429 SOC (4 SPIs instances).
* tag 'stm32-dt-for-v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32:
ARM: dts: stm32: Enable thermal sensor support on STM32MP157c-ed1
ARM: dts: stm32: add SPI support on STM32F429 SoC
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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New board the Elgin-R1 based on the rv1108 soc and a number of small
improvements for rv1108 as well. RK3066 got support for the core
display components and the Edison tablet got its touchscreen added.
Apart from that a wider fix to drop display-wp usage from places where
it shouldn't be used, a pin fix for Edison and a cleanup to prevent
rk3036 board from defining sound-dai-cells for core components in
each board separately.
* tag 'v5.1-rockchip-dts32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
ARM: dts: rockchip: clean up the abuse of disable-wp
ARM: dts: rv1108: Add support for rv1108-elgin-r1 board
dt-bindings: Add vendor prefix for elgin
ARM: dts: rockchip: rv1108: Add spim0 and spim1 pinctrl groups
ARM: dts: rockchip: Add missing dma-names SPI support for rv1108
ARM: dts: rockchip: add rk3066 vop display nodes
ARM: dts: rockchip: add focaltech touchscreen to rk3188-bqedison2qc
ARM: dts: rockchip: fix cif1_pdn pin on rk3188-bqedison2qc
ARM: dts: rockchip: add HCLK_HDMI to rk3066 vio power-domain
ARM: dts: rockchip: move rk3036 i2s sound-dail-cells into soc dtsi
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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DaVinci device-tree updates for v5.1 contains a patch to enable analog
mic input on da850 LCDK board.
* tag 'davinci-for-v5.1/dt' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: dts: da850-lcdk: Enable the analog mic input
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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dts updates for omap variants for v5.1 merge window
This series contains board specific dts updates and few minor
clean-up changes:
- add stdout-path for am335x-chiliboard
- add wlcore wakeirq for omap3-evm, pandaboard and omap4-droid4
- remove unnecessary address-cells and io-cells for am33xx
- replace deprecated linux,wakeup with wakeup-source property
- use spdx license for am335x-shc
- configure ethernet pins for omap4-sdp
* tag 'omap-for-v5.1/dt-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: omap4-sdp: Make ethernet working even if booted with latest u-boot
ARM: dts: am335x-shc.dts: Switch to SPDX identifier
ARM: dts: am437x: replace linux,wakeup with wakeup-source property
ARM: dts: am33xx: Remove unnecessary properties
ARM: dts: omap4-droid4: Configure wlcore wakeirq
ARM: dts: Configure wlcore wakeirq for pandaboard
ARM: dts: Add wlcore wakeirq for omap3-evm
ARM: dts: am335x-chiliboard: Add stdout-path property
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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dts updates for ti81xx for v5.1 merge window
Two changes to add support for McGill University's IceBoard telescope
ARM + FPGA instrumentation board. This board is used for several
telescopes around the world, see the related device tree commit for
some interesting links for more information.
Note that these changes are based on the related ti81xx soc changes.
* tag 'omap-for-v5.1/dt-ti-81xx-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: Adds device tree file for McGill's IceBoard, based on TI AM3874
ARM: dts: ti81xx: Add dts boilerplate for all GPIO and SPI peripherals
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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SoC updates for ti81xx for v5.1 merge window
Two changes to add legacy hwmod data for gpio and spi peripherals on
ti81xx. We have not yet updated ti81xx to probe devices with ti-sysc
interconnect target module driver, so these changes are still needed
to make devices usable for the related device tree changes.
* tag 'omap-for-v5.1/soc-ti-81xx-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: ti81xx: Add hwmod boilerplate for all GPIO and SPI peripherals
ARM: ti81xx: Move I2C entries in omap_hwmod_81xx to maintain grouping
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Drop one non-existent component from powerdomain list.
* tag 'v5.0-rockchip-dts32fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
ARM: dts: rockchip: remove qos_cif1 from rk3188 power-domain
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SoC fixes for omaps for v5.0-rc cycle
This series contains two SoC regression fixes and one uninitialized
variable fix:
- Fix inverted nirq pin handling for omap5 that started producing
warnings with earlier GIC direction checks and took a while to
understand and confirm. Basically there are two sys_nirq pins
that are bypassing peripheral modules and inverted automatically
by the SoC and need to be handled with a custom irq_set_type()
- Recent ti-sysc changes caused a regression to the pwm-omap-dmtimer
code where the device tree handling code for timer source clock
gets confused. It looks like we can remove that code eventually,
but for now we just drop a bogus pm_runtime_irq_safe() for the
timers with the related quirks caused by pm_runtime_irq_safe(),
and have the standard assigned-clocks and assigned-clock-parents
deal with setting the source clock
- Fix potentially uninitialized value for display init code if
regmap_read() fails
* tag 'omap-for-v5.0/fixes-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Variable "reg" in function omap4_dsi_mux_pads() could be uninitialized
ARM: dts: Configure clock parent for pwm vibra
bus: ti-sysc: Fix timer handling with drop pm_runtime_irq_safe()
ARM: OMAP5+: Fix inverted nirq pin interrupts with irq_set_type
clocksource: timer-ti-dm: Fix pwm dmtimer usage of fck reparenting
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at24 updates for v5.1
- finally remove legacy platform data as all users have been switched
to using device properties and nvmem notifier chain
- add support for the 'num-addresses' property
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KVM/ARM fixes for 5.0:
- Fix the way we reset vcpus, plugging the race that could happen on VHE
- Fix potentially inconsistent group setting for private interrupts
- Don't generate UNDEF when LORegion feature is present
- Relax the restriction on using stage2 PUD huge mapping
- Turn some spinlocks into raw_spinlocks to help RT compliance
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The OF_RESERVED_MEM can be used if we have either CMA or the generic
declare coherent code built and we support the early flattened DT.
So don't bother making it a user visible options that is selected
by most configs that fit the above category, but just select it when
the requirements are met.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Rob Herring <robh@kernel.org>
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS
Acked-by: Catalin Marinas <catalin.marinas@arm.com> # arm64
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Before we fixed up the interrupt hierarchy for the SSBI
GPIO controller, we had to use the PM8058 directly to pick
interrupts. After making the interrupt controller work properly,
we can reference the real interrupt parent.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add interrupt controller properties now that ssbi-gpio is a proper
hierarchical IRQ chip. The interrupts property is no longer needed so
remove it.
Note that the IRQs started at 24 instead of 192 like all of the other
PMICs. This is the same IRQs as the MPP for this board. qcom-pm8xxx.c
doesn't set the shared IRQs so this is highly likely to be a copy and
paste error.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add interrupt controller properties now that ssbi-gpio is a proper
hierarchical IRQ chip. The interrupts property is no longer needed so
remove it.
This change was tested on an APQ8060 DragonBoard.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add interrupt controller properties now that ssbi-gpio is a proper
hierarchical IRQ chip. The interrupts property is no longer needed so
remove it.
This change was not tested on any hardware but the same change was
tested on an APQ8060 DragonBoard with no issues.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This adds the PHY as a new node. The PCI-e controller node gains a
phandle property that points to it.
There isn't yet any code in the kernel that uses this device's
registers, but it will be added for a PCIe PLL erratum workaround.
Signed-off-by: Trent Piepho <tpiepho@impinj.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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The lcd display of the gta04 has a backlight but the backlight
was not referenced in the lcd node, so screen blanking did
not turn off the backlight. Fix that.
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Tested-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The Bosch Guardian is a TI am335x based device.
It's hardware specifications are as follows:
* 256 MB DDR3 memory
* 512 MB NAND Flash
* USB OTG
* RS232
* MicroSD external storage
* LCD Display interface
Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
[tony@atomide.com: updated to use #include]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Installing the appropriate non-IOMMU DMA ops in arm_iommu_detch_device()
serves the case where IOMMU-aware drivers choose to control their own
mapping but still make DMA API calls, however it also affects the case
when the arch code itself tears down the mapping upon driver unbinding,
where the ops now get left in place and can inhibit arch_setup_dma_ops()
on subsequent re-probe attempts.
Fix the latter case by making sure that arch_teardown_dma_ops() cleans
up whenever the ops were automatically installed by its counterpart.
Reported-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Fixes: 1874619a7df4 "ARM: dma-mapping: Set proper DMA ops in arm_iommu_detach_device()"
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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commit e46daee53bb5 ("ARM: 8806/1: kprobes: Fix false positive with
FORTIFY_SOURCE") introduced a regression in optimized kprobes. It
triggers "invalid instruction" oopses when using kprobes instrumentation
through lttng and perf. This commit was introduced in kernel v4.20, and
has been backported to stable kernels 4.19 and 4.14.
This crash was also reported by Hongzhi Song on the redhat bugzilla
where the patch was originally introduced.
Link: https://bugzilla.redhat.com/show_bug.cgi?id=1639397
Link: https://bugs.lttng.org/issues/1174
Link: https://lore.kernel.org/lkml/342740659.2887.1549307721609.JavaMail.zimbra@efficios.com
Fixes: e46daee53bb5 ("ARM: 8806/1: kprobes: Fix false positive with FORTIFY_SOURCE")
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Reported-by: Robert Berger <Robert.Berger@ReliableEmbeddedSystems.com>
Tested-by: Robert Berger <Robert.Berger@ReliableEmbeddedSystems.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Robert Berger <Robert.Berger@ReliableEmbeddedSystems.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: William Cohen <wcohen@redhat.com>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: <stable@vger.kernel.org> # v4.14+
Cc: linux-arm-kernel@lists.infradead.org
Cc: patches@armlinux.org.uk
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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While building arm32 allyesconfig, I ran into the following errors:
arch/arm/lib/xor-neon.c:17:2: error: You should compile this file with
'-mfloat-abi=softfp -mfpu=neon'
In file included from lib/raid6/neon1.c:27:
/home/nathan/cbl/prebuilt/lib/clang/8.0.0/include/arm_neon.h:28:2:
error: "NEON support not enabled"
Building V=1 showed NEON_FLAGS getting passed along to Clang but
__ARM_NEON__ was not getting defined. Ultimately, it boils down to Clang
only defining __ARM_NEON__ when targeting armv7, rather than armv6k,
which is the '-march' value for allyesconfig.
>From lib/Basic/Targets/ARM.cpp in the Clang source:
// This only gets set when Neon instructions are actually available, unlike
// the VFP define, hence the soft float and arch check. This is subtly
// different from gcc, we follow the intent which was that it should be set
// when Neon instructions are actually available.
if ((FPU & NeonFPU) && !SoftFloat && ArchVersion >= 7) {
Builder.defineMacro("__ARM_NEON", "1");
Builder.defineMacro("__ARM_NEON__");
// current AArch32 NEON implementations do not support double-precision
// floating-point even when it is present in VFP.
Builder.defineMacro("__ARM_NEON_FP",
"0x" + Twine::utohexstr(HW_FP & ~HW_FP_DP));
}
Ard Biesheuvel recommended explicitly adding '-march=armv7-a' at the
beginning of the NEON_FLAGS definitions so that __ARM_NEON__ always gets
definined by Clang. This doesn't functionally change anything because
that code will only run where NEON is supported, which is implicitly
armv7.
Link: https://github.com/ClangBuiltLinux/linux/issues/287
Suggested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Most of the legacy "gpio-key,wakeup" boolean property is already
replaced with "wakeup-source". However few occurrences of old property
has popped up again, probably from the remnants in downstream trees.
Replace the legacy properties with the unified "wakeup-source"
property introduced in the commit 700a38b27eef ("Input: gpio_keys -
switch to using generic device properties")
Cc: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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The EVM consists of a system on module (SOM) and baseboard, and LCD.
This patch adds a DTSI file for the SOM and baseboard separately,
then a wrapper to combine them and specify processor type and a
LCD information.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Now that all sensors supplied by reg_sensors have supported
regulator control, reg_sensors does NOT need to be always ON,
remove "regulator-always-on" to save power.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The mma8451 sensor driver has supported regulators control,
assign the power supplies for mma8451 to enable the control.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The mag3110 sensor driver has supported regulators control,
assign the power supplies for mag3110 to enable the control.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The isl29023 light sensor driver has supported regulator control,
assign the power supply for isl29023 to enable the control.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add the Zodiac Digital Tapping Unit, a VF610 based network device with
5 Ethernet ports. One of these ports supports 1000Base-T2.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The pfla02 SoM has a Micrel KSZ9031RNX ethernet phy connected to the FEC,
which needs RX and TX clock skew settings to compensate for differences
in line length. The skew values are taken from barebox commit
4c65c20f1071 ("ARM: pfla02: Set new ethernet phy tx timings"), which
is based on patches originally provided by Phytec:
TX_CLK line is approx. 54mm longer than other TX lines which adds
a delay of 0.36ns. RGMII need a delay of min. 1.0ns. This mean we
have to add a delay of 0.64ns. We choose 0.78 to have a little gap.
This can be done by setting GTX pad skew value to 11100
Also add a delay for the RX delay lines, needed for the Duallite
variant. => Set register 2.8 (RGMII Clock Pad Skew) to 0x039F.
Cc: Christian Hemp <c.hemp@phytec.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The DA9063 device need the required "interrupt-controller" property as
documented by the bindings [1].
[1] Documentation/devicetree/bindings/mfd/da9063.txt
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The logic implemented by these routines now lives in the da8xx-ohci
driver. Remove dead code.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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The logic implemented by these routines now lives in the da8xx-ohci
driver. Remove dead code.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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Add lookup entries for vbus and overcurrent gpios for da830-evm.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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Add lookup entries for the vbus and overcurrent gpios for omapl138-hawk.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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This adds the GPIO line names from the schematics to get them displayed
in the debugfs output of each GPIO controller.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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USB_VBUS is a controlled by a Silergy SY6288CCAC-GP 2A Power
Distribution Switch. The name of it's enable GPIO signal is USB_PWR_EN.
VCC5V is supplied by the main power input called PWR_5V_STB. The name of
it's enable GPIO signal is 3V3_5V_EN.
VCC3V3, VCC_DDR3_1V5 and VCCK (the CPU power supply) each use a separate
Silergy SY8089AAC-GP 2A step down regulator. They are all supplied by the
board's main 5V. VCC3V3 and VCC_DDR3_1V5 are fixed regulators while the
voltage of VCCK can be changed by changing it's feedback voltage via
PWM_C.
VCC1V8 is an ABLIC S-1339D18-M5001-GP fixed voltage regulator which is
supplied by VCC3V3.
VCC_RTC is a Global Mixed-mode Technology Inc. G918T12U-GP LDO which. It
is supplied by either VCC3V3 (when the board is powered) or the RTC coin
cell battery.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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The INTR32 pin of the IP101GR Ethernet PHY is routed to the GPIOH_3 pad
on the SoC.
Enable the interrupt function of the PHY's INTR32 pin to switch it from
it's default "receive error" mode to "interrupt pin" mode.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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SAR ADC enabled channel 8 can be used to measure the chip temperature.
This can be made available to the hwmon subsystem by using iio-hwmon.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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SAR ADC enabled channel 8 can be used to measure the chip temperature.
This can be made available to the hwmon subsystem by using iio-hwmon.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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SAR ADC enabled channel 8 can be used to measure the chip temperature.
This can be made available to the hwmon subsystem by using iio-hwmon.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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The SAR ADC can measure the chip temperature of the SoC. This only
works if the chip is calibrated and if the calibration data is written
to the correct registers. The calibration data is stored in the upper
two bytes of eFuse offset 0x1f4.
This adds the eFuse cell for the temperature calibration data and
passes it to the SAR ADC. We also need to pass the HHI sysctrl node to
the SAR ADC because the 4th TSC (temperature sensor calibration
coefficient) bit is stored in the HHI region (unlike bits [3:0] which
are stored directly inside the SAR ADC's register area).
On boards that have the SAR ADC enabled channel 8 can be used to
measure the chip temperature.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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The SAR ADC can measure the chip temperature of the SoC. This only
works if the chip is calibrated and if the calibration data is written
to the correct registers. The calibration data is stored in the upper
two bytes of eFuse offset 0x1f4.
This adds the eFuse cell for the temperature calibration data and
passes it to the SAR ADC. We also need to pass the HHI sysctrl node to
the SAR ADC because the 4th TSC (temperature sensor calibration
coefficient) bit is stored in the HHI region (unlike bits [3:0] which
are stored directly inside the SAR ADC's register area).
On boards that have the SAR ADC enabled channel 8 can be used to
measure the chip temperature.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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The SAR ADC on Meson8m2 is slightly different compared to Meson8. The
ADC functionality is identical but the calibration of the internal
thermal sensor is different.
Use the Meson8m2 specific compatible so the temperature sensor is
calibrated correctly on boards using the Meson8m2 SoC.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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The clock controller on Meson8/Meson8m2 and Meson8b is part of a
register region called "HHI". This register area contains more
functionality than just a clock controller:
- the clock controller
- some reset controller bits
- temperature sensor calibration data (on Meson8b and Meson8m2 only)
- HDMI controller
Allow access to this HHI register area as "system controller". Also
migrate the Meson8 and Meson8b clock controllers to this new node.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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According to the Odroid-C1+ schematics the Ethernet TXD1 signal is
routed to GPIOH_5 and the TXD0 signal is routed to GPIOH_6.
The public S805 datasheet shows that TXD0 can be routed to DIF_2_P and
TXD1 can be routed to DIF_2_N instead.
The pin groups eth_txd0_0 (GPIOH_6) and eth_txd0_1 (DIF_2_P) are both
configured as Ethernet TXD0 and TXD1 data lines in meson8b.dtsi. At the
same time eth_txd1_0 (GPIOH_5) and eth_txd1_1 (DIF_2_N) are configured
as TXD0 and TXD1 data lines as well.
This results in a bad Ethernet receive performance. Presumably this is
due to the eth_txd0 and eth_txd1 signal being routed to the wrong pins.
As a result of that data can only be transmitted on eth_txd2 and
eth_txd3. However, I have no scope to fully confirm this assumption.
The vendor u-boot sources for Odroid-C1 use the following Ethernet
pinmux configuration:
SET_CBUS_REG_MASK(PERIPHS_PIN_MUX_6, 0x3f4f);
SET_CBUS_REG_MASK(PERIPHS_PIN_MUX_7, 0xf00000);
This translates to the following pin groups in the mainline kernel:
- register 6 bit 0: eth_rxd1 (DIF_0_P)
- register 6 bit 1: eth_rxd0 (DIF_0_N)
- register 6 bit 2: eth_rx_dv (DIF_1_P)
- register 6 bit 3: eth_rx_clk (DIF_1_N)
- register 6 bit 6: eth_tx_en (DIF_3_P)
- register 6 bit 8: eth_ref_clk (DIF_3_N)
- register 6 bit 9: eth_mdc (DIF_4_P)
- register 6 bit 10: eth_mdio_en (DIF_4_N)
- register 6 bit 11: eth_tx_clk (GPIOH_9)
- register 6 bit 12: eth_txd2 (GPIOH_8)
- register 6 bit 13: eth_txd3 (GPIOH_7)
- register 7 bit 20: eth_txd0_0 (GPIOH_6)
- register 7 bit 21: eth_txd1_0 (GPIOH_5)
- register 7 bit 22: eth_rxd3 (DIF_2_P)
- register 7 bit 23: eth_rxd2 (DIF_2_N)
Drop the eth_txd0_1 and eth_txd1_1 groups from eth_rgmii_pins to fix the
Ethernet transmit performance on Odroid-C1. Also add the eth_rxd2 and
eth_rxd3 groups so we don't rely on the bootloader to set them up.
iperf3 statistics before this change:
- transmitting from Odroid-C1: 741 Mbits/sec (0 retries)
- receiving on Odroid-C1: 199 Mbits/sec (1713 retries)
iperf3 statistics after this change:
- transmitting from Odroid-C1: 667 Mbits/sec (0 retries)
- receiving on Odroid-C1: 750 Mbits/sec (0 retries)
Fixes: b96446541d8390 ("ARM: dts: meson8b: extend ethernet controller description")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: Emiliano Ingrassia <ingrassia@epigenesys.com>
Cc: Linus Lüssing <linus.luessing@c0d3.blue>
Tested-by: Emiliano Ingrassia <ingrassia@epigenesys.com>
Reviewed-by: Emiliano Ingrassia <ingrassia@epigenesys.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
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Add the stmpe-adc DT node as found on Toradex iMX6 modules
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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