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When the EEPROM is probed, we have this warning:
at24 0-0052: supply vcc not found, using dummy regulator
Add fixed 3.3v regulator to silence the warning.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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For SOMs with an onboard PHY, the RESET_N pull-up resistor is
currently deactivated in the pinmux configuration. When the pinmux
code selects the GPIO function for this pin, with a default direction
of input, this prevents the RESET_N pin from being taken to the proper
3.3V level (deasserted), and this results in the PHY being not
detected since it is held in reset.
Taken from RESET_N pin description in ADIN13000 datasheet:
This pin requires a 1K pull-up resistor to AVDD_3P3.
Activate the pull-up resistor to fix the issue.
Fixes: ade0176dd8a0 ("arm64: dts: imx8mn-var-som: Add Variscite VAR-SOM-MX8MN System on Module")
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Pull ARM SoC devicetree updates from Arnd Bergmann:
"The biggest change this time is for the 32-bit devicetree files, which
are all moved to a new location, using separate subdirectories for
each SoC vendor, following the same scheme that is used on arm64, mips
and riscv. This has been discussed for many years, but so far we never
did this as there was a plan to move the files out of the kernel
entirely, which has never happened.
The impact of this will be that all external patches no longer apply,
and anything depending on the location of the dtb files in the build
directory will have to change. The installed files after 'make
dtbs_install' keep the current location.
There are six added SoCs here that are largely variants of previously
added chips. Two other chips are added in a separate branch along with
their device drivers.
- The Samsung Exynos 4212 makes its return after the Samsung Galaxy
Express phone is addded at last. The SoC support was originally
added in 2012 but removed again in 2017 as it was unused at the
time.
- Amlogic C3 is a Cortex-A35 based smart IP camera chip
- Qualcomm MSM8939 (Snapdragon 615) is a more featureful variant of
the still common MSM8916 (Snapdragon 410) phone chip that has been
supported for a long time.
- Qualcomm SC8180x (Snapdragon 8cx) is one of their earlier high-end
laptop chips, used in the Lenovo Flex 5G, which is added along with
the reference board.
- Qualcomm SDX75 is the latest generation modem chip that is used as
a peripherial in phones but can also run a standalone Linux. Unlike
the prior 32-bit SDX65 and SDX55, this now has a 64-bit Cortex-A55.
- Alibaba T-Head TH1520 is a quad-core RISC-V chip based on the
Xuantie C910 core, a step up from all previously added rv64 chips.
All of the above come with reference board implementations, those
included there are 39 new board files, but only five more 32-bit this
time, probably a new low:
- Marantec Maveo board based on dhcor imx6ull module
- Endian 4i Edge 200, based on the armv5 Marvell Kirkwood chip
- Epson Moverio BT-200 AR glasses based on TI OMAP4
- PHYTEC STM32MP1-3 Dev board based on STM32MP15 PHYTEC SOM
- ICnova ADB4006 board based on Allwinner A20
On the 64-bit side, there are also fewer addded machines than we had
in the recent releases:
- Three boards based on NXP i.MX8: Emtop SoM & Baseboard, NXP i.MX8MM
EVKB board and i.MX8MP based Gateworks Venice gw7905-2x device.
- NVIDIA IGX Orin and Jetson Orin Nano boards, both based on tegra234
- Qualcomm gains support for 6 reference boards on various members of
their IPQ networking SoC series, as well as the Sony Xperia M4 Aqua
phone, the Acer Aspire 1 laptop, and the Fxtec Pro1X board on top
of the various reference platforms for their new chips.
- Rockchips support for several newer boards: Indiedroid Nova
(rk3588), Edgeble Neural Compute Module 6B (rk3588), FriendlyARM
NanoPi R2C Plus (rk3328), Anbernic RG353PS (rk3566), Lunzn
Fastrhino R66S/R68S (rk3568)
- TI K3/AM625 based PHYTEC phyBOARD-Lyra-AM625 board and Toradex
Verdin family with AM62 COM, carrier and dev boards
Other changes to existing boards contain the usual minor improvements
along with
- continued updates to clean up dts files based on dtc warnings and
binding checks, in particular cache properties and node names
- support for devicetree overlays on at91, bcm283x
- significant additions to existing SoC support on mediatek,
qualcomm, ti k3 family, starfive jh71xx, NXP i.MX6 and i.MX8, ST
STM32MP1
As usual, a lot more detail is available in the individual merge
commits"
* tag 'soc-dt-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (926 commits)
ARM: mvebu: fix unit address on armada-390-db flash
ARM: dts: Move .dts files to vendor sub-directories
kbuild: Support flat DTBs install
ARM: dts: Add .dts files missing from the build
ARM: dts: allwinner: Use quoted #include
ARM: dts: lan966x: kontron-d10: add PHY interrupts
ARM: dts: lan966x: kontron-d10: fix SPI CS
ARM: dts: lan966x: kontron-d10: fix board reset
ARM: dts: at91: Enable device-tree overlay support for AT91 boards
arm: dts: Enable device-tree overlay support for AT91 boards
arm64: dts: exynos: Remove clock from Exynos850 pmu_system_controller
ARM: dts: at91: use generic name for shutdown controller
ARM: dts: BCM5301X: Add cells sizes to PCIe nodes
dt-bindings: firmware: brcm,kona-smc: convert to YAML
riscv: dts: sort makefile entries by directory
riscv: defconfig: enable T-HEAD SoC
MAINTAINERS: add entry for T-HEAD RISC-V SoC
riscv: dts: thead: add sipeed Lichee Pi 4A board device tree
riscv: dts: add initial T-HEAD TH1520 SoC device tree
riscv: Add the T-HEAD SoC family Kconfig option
...
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This commit is taken from Variscite linux kernel public git repository.
Original patch author: Nate Drude <nate.d@variscite.com>
See: https://github.com/varigit/linux-imx/blob/5.15-2.0.x-imx_var01/drivers/net/ethernet/freescale/fec_main.c#L3993-L4050
The ethernet phy reset was moved from the fec controller to the
mdio bus, see for example: 0e825b32c033e1998d0ebaf247f5dab3c340e3bf
When the fec driver managed the reset, the regulator had time to
settle during the fec phy reset before calling of_mdiobus_register,
which probes the mii bus for the phy id to match the correct driver.
Now that the mdio bus controls the reset, the fec driver no longer has
any delay between enabling the regulator and calling of_mdiobus_register.
If the regulator voltage has not settled, the phy id will not be read
correctly and the generic phy driver will be used.
The following call tree explains in more detail:
fec_probe
fec_reset_phy <- no longer introduces delay after migration to mdio reset
fec_enet_mii_init
of_mdiobus_register
of_mdiobus_register_phy
fwnode_mdiobus_register_phy
get_phy_device <- mii probe for phy id to match driver happens here
...
fwnode_mdiobus_phy_device_register
phy_device_register
mdiobus_register_device
mdio_device_reset <- mdio reset assert / deassert delay happens here
Add a 20ms enable delay to the regulator to fix the issue.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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While testing the ethernet interface on a Variscite symphony carrier
board using an imx8mn SOM with an onboard ADIN1300 PHY (EC hardware
configuration), the ethernet PHY is not detected.
The ADIN1300 datasheet indicate that the "Management interface
active (t4)" state is reached at most 5ms after the reset signal is
deasserted.
The device tree in Variscite custom git repository uses the following
property:
phy-reset-post-delay = <20>;
Add a new MDIO property 'reset-deassert-us' of 20ms to have the same
delay inside the ethphy node. Adding this property fixes the problem
with the PHY detection.
Note that this SOM can also have an Atheros AR8033 PHY. In this case,
a 1ms deassert delay is sufficient. Add a comment to that effect.
Fixes: ade0176dd8a0 ("arm64: dts: imx8mn-var-som: Add Variscite VAR-SOM-MX8MN System on Module")
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The 4Kbit EEPROM located on the SOM contains hardware configuration
options, manufacturing infos and ethernet MAC address.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The PMIC on this Variscite SOM and its MX8MM variant lists regulator-name
for all LDOs except this LDO5, add the regulator-name property to avoid
this omission.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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VAR-SOM-MX8MN
The "regulator-compatible" property is deprecated and unused, as the
match happens on the node name in Linux of_regulator_match() in case
the property is not present. Drop the deprecated property from DT.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The common touchscreen properties are all 32-bit, not 16-bit. These
properties must not be too important as they are all ignored in case of an
error reading them.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/Yk3moe6Hz8ELM0iS@robh.at.kernel.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM device tree updates from Arnd Bergmann:
"Across all platforms, there is a continued move towards DT schema for
validating the dts files. As a result there are bug fixes for mistakes
that are found using these schema, in addition to warnings from the
dtc compiler.
As usual, many changes are for adding support for additional on-chip
and on-board components in the machines we already support.
The newly supported SoCs for this release are:
- MStar Infinity2M, a low-end IP camera chip based on a dual-core
Cortex-A7, otherwise similar to the Infinity chip we already
support. This is also known as the SigmaStar SSD202D, and we add
support for the Honestar ssd201htv2 development kit.
- Nuvoton NPCM730, a Cortex-A9 based Baseboard Management Controller
(BMC), in the same family as the NPCM750. This gets used in the
Ampere Altra based "Fii Kudo" server and the Quanta GSJ, both of
which are added as well.
- Broadcom BCM4908, a 64-bit home router chip based on Broadcom's own
Brahma-B53 CPU. Support is also added for the Asus ROG Rapture
GT-AC5300 high-end WiFi router based on this chip.
- Mediatek MT8192 is a new SoC based on eight Cortex-A76/A55 cores,
meant for faster Chromebooks and tablets. It gets added along with
its reference design.
- Mediatek MT6779 (Helio P90) is a high-end phone chip from last
year's generation, also added along with its reference board. This
one is still based on Cortex-A75/A55.
- Mediatek MT8167 is a version of the already supported MT8516 chip,
both based on Cortex-A35. It gets added along with the "Pumpkin"
single board computer, but is likely to also make its way into
low-end tablets in the future.
For the already supported chips, there are a number of new boards.
Interestingly there are more 32-bit machines added this time than
64-bit. Here is a brief list of the new boards:
- Three new Mikrotik router variants based on Marvell Prestera
98DX3236, a close relative of the more common Armada XP
- A reference board for the Marvell Armada 382
- Three new servers using ASpeed baseboard management controllers,
the actual machines being from Bytedance, Facebook and IBM, and one
machine using the Nuvoton NPCM750 BMC.
- The Galaxy Note 10.1 (P4) tablet, using an Exynos 4412.
- The usual set of 32-bit i.MX industrial/embedded hardware:
* Protonic WD3 (tractor e-cockpit)
* Kamstrup OMNIA Flex Concentrator (smart grid platform)
* Van der Laan LANMCU (food storage)
* Altesco I6P (vehicle inspection stations)
* PHYTEC phyBOARD-Segin/phyCORE-i.MX6UL baseboard
- DH electronics STM32MP157C DHCOM, a PicoITX carrier board for the
aleady supported DHCOM module
- Three new Allwinner SoC based single-board computers:
* NanoPi R1 (H3 based)
* FriendlyArm ZeroPi (H3 based)
* Elimo Initium SBC (S3 based)
- Ouya Game Console based on Nvidia Tegra 3
- Version 5 of the already supported Zynq Z-Turn MYIR Board
- LX2162AQDS, a reference platform for NXP Layerscape LX2162A, which
is a repackaged 16-core LX2160A
- A series of Kontron i.MX8M Mini baseboard/SoM versions
- Espressobin Ultra, a new variant of the popular Armada 3700 based
board,
- IEI Puzzle-M801, a rackmount network appliance based on Marvell
Armada 8040
- Microsoft Lumia 950 XL, a phone
- HDK855 and HDK865 Hardware development kits for Qualcomm sm8250 and
sm8150, respectively
- Three new board variants of the "Trogdor" Chromebook (sc7180)
- New board variants of the Renesas based "Kingfisher" and "HiHope"
reference boards
- Kobol Helios64, an open source NAS appliance based on Rockchips
RK3399
- Engicam PX30.Core, a SoM based on Rockchip PX30, along with a few
carrier boards"
* tag 'arm-soc-dt-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (679 commits)
arm64: dts: sparx5: Add SGPIO devices
arm64: dts: sparx5: Add reset support
dt-bindings: gpio: Add a binding header for the MSC313 GPIO driver
ARM: mstar: SMP support
ARM: mstar: Wire up smpctrl for SSD201/SSD202D
ARM: mstar: Add smp ctrl registers to infinity2m dtsi
ARM: mstar: Add dts for Honestar ssd201htv2
ARM: mstar: Add chip level dtsi for SSD202D
ARM: mstar: Add common dtsi for SSD201/SSD202D
ARM: mstar: Add infinity2m support
dt-bindings: mstar: Add Honestar SSD201_HT_V2 to mstar boards
dt-bindings: vendor-prefixes: Add honestar vendor prefix
dt-bindings: mstar: Add binding details for mstar,smpctrl
ARM: mstar: Fill in GPIO controller properties for infinity
ARM: mstar: Add gpio controller to MStar base dtsi
ARM: zynq: Fix incorrect reference to XM013 instead of XM011
ARM: zynq: Convert at25 binding to new description on zc770-xm013
ARM: zynq: Fix OCM mapping to be aligned with binding on zc702
ARM: zynq: Fix leds subnode name for zc702/zybo-z7
ARM: zynq: Rename bus to be align with simple-bus yaml
...
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Different revision of i.MX8MN EVK boards may have different external
pull up registor design, some are enabled while some are NOT, to make
sure the WDOG_B pin works properly, better to enable internal pull up
resistor. Since enabling internal pull up resistor is NOT harmful and
having benefit of flexibility on different board design, just enable
it for all i.MX8MN boards; And schmitt input is NOT necessary for this
WDOG_B output pin, so remove it; Open drain outputs provide more
flexibility to a designer as they can be pulled-up to any voltage found
in the system, so enable it as well.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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The PMIC's interrupt is level low and should be pulled up. The PMIC's
device node had pinctrl-0 property but it lacked pinctrl-names which
is required to apply the pin configuration. The actual problem in DTS
was pointed out by Felix Radensky from Variscite.
Reported-by: Felix Radensky <felix.r@variscite.com>
Fixes: ade0176dd8a0 ("arm64: dts: imx8mn-var-som: Add Variscite VAR-SOM-MX8MN System on Module")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Robin Gong <yibin.gong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add DTSI of Variscite VAR-SOM-MX8MN (Nano) System on Module in a basic
version, delivered with Variscite Symphony Evaluation kit. This version
comes with:
- 1 GB of RAM,
- 16 GB eMMC,
- Gigabit Ethernet PHY,
- 802.11 ac/a/b/g/n WiFi with 4.2 Bluetooth,
- CAN bus,
- Audio codec (not yet configured in DTSI).
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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