Add support for the i.MX7D SMEGW01 board.

This is a gateway board that supports the following peripherals:

- eMMC / SD card
- RTC
- USB modem
- Wifi via SDIO
- Dual Ethernet
- CAN
- Serial SRAM
Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Attempting to boot my Udoo Dual and Quad with mainline hangs during boot
after printing:

[    3.270471] imx_usb 2184000.usb: No over current polarity defined
[    3.922502] mxs_phy 20c9000.usbphy: Data pin can't make good contact.
[    3.940097] imx_usb 2184200.usb: No over current polarity defined

where imx_usb 2184200.usb is usbh1 in the DT. Adding debug prints to the
code seems to show that we lock up at the first read in usbmisc_imx6q_init()
which in combination with the above logging about the USB controllers
suggests that we lock up on the first read in usbmisc_imx6q_init(). Looking
at some of the other i.MX6 boards and the warning messages that are being
printed suggests that there is bitrot in the DTS for the device so disable
it for now, with it disabled the board boots successfully.  Clearly this is
not a real fix, but it does allow some use of the board with mainline.

Similar behaviour is seen all the way back as far as v4.19, I tried going
back to when the board was added but had toolchain issues. Vendor provided
binaries seem fine on the boards so it seems likely that the hardware is
fine and the issue is with some combination of the DT and kernel.  This
should obviously be resolved properly but for now this at least allows
the kernel to boot with reduced functionality on these systems.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The '#dma-channels' property was deprecated in favor of one defined by
generic dma-common DT bindings.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

This allows boards the option of adding properties or disabling the
LEDs entirely.
Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Reduce the interrupt-map-mask of the external interrupt controller to
7 to align with the devicetree schema.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add a label for the cpu node, so that board devicetree files can
reference to the CPU node.

This is useful for describing a PMIC voltage that supplies the CPU
voltage.

For example:

&cpu0 {
	cpu-supply = <&sw1_reg>;
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The usage of the 'fsl,uart-has-rtscts' property is deprecated.

Use the standard 'uart-has-rtscts' instead.

Cc: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Acked-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The usage of the 'fsl,uart-has-rtscts' property is deprecated.

Use the standard 'uart-has-rtscts' instead.

Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The following W=1 dtc warning is seen:

arch/arm/boot/dts/mba6ulx.dtsi:33.26-64.4: Warning (avoid_unnecessary_addr_size): /gpio-keys: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property

Remove the unnecessary #address-cells/#size-cells to fix it.

Fixes: 7b8861d8 ("ARM: dts: imx6ul: add TQ-Systems MBa6ULx device trees")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Update the node name to be align with latest binding.
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The binding of ifc device has been updated.  Update dts to match
accordingly.
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add node describing the USB1 usbphy.
Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The VBUS on usbotg is connected to the PMIC SWBST, let's reflect
that in the bindings.
Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

This patch updates the PMIC voltages according to the module's
datasheet to match both commercial and industrial variants of the module.
Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

VGEN1, VGEN2 and GPO1 regulators are not used on SOM.
Let's remove these entries.
Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Updates UART nodes to adopt generic DMA bindings.
Signed-off-by: Alexander Shiyan <eagle.alexander923@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The LS1021A-IoT gateway reference design is a purpose-built,
small footprint hardware platform equipped with a wide array
of both high-speed connectivity and low speed serial interfaces.

CC: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Changming Huang <jerry.huang@nxp.com>
Signed-off-by: Alison Wang <alison.wang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Latest version of ti,tmp103 driver supports thermal zone. So make use of
it.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add missing ISB led node.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

X axis is not inverted in hardware.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Factor out common parts of vicut1 and vicutp to reduce maintenance
overhead.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The common base is now identical to imx6qdl-vicut1.dtsi, so we can remove
one of both.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

This commit will finally make this file identical to imx6qdl-victgo.dtsi.
All nodes that are removed here are added as-is to the DTS files that
include this file.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

These parts are common to imx6qdl-vicut1.dtsi.

This patch is preparation to unify victgo and vicut1 DTs.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Following changes was made:
- Add MDIO signal names
- Add missing ISB_IN2 name. Also correct ISB_nIN1. These two signals were used
  together in older HW revisions. Later ISB_IN2 was removed. Software should
  still be able to use both.
- Add missing CAN1 and UART line names
- Add missing ON1/2_CTRL line names
- fix CPU_* line names. The real signal names are without the CPU_ prefix, like
  on imx6qdl-vicut1.dtsi
- Fix ETH_INT signal name
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Only the prototype had the SATA interface. There are no existing products
with SATA interface and no plans to add any.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The function of DISP0_DAT9 is dependent on hardware revision of two
particular variants. This setting should be done by the bootloader anyway,
and is not needed in the kernel, so remove it from the DT.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add some missing names and remove names to pins that have never been used
and/or are not present on any hardware.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

While there are LEDs connected on some variants on GPIO4 pins 16 and 17,
those are not the debug LEDs that should be visible to user-space.
It should be the same as in imx6dl-victgo.dtsi.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The names should be consistent with the names in imx6dl-victgo.dts

This patch is preparation to unify vicut1 and victgo DTs.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Only first prototype had UART2 and there are no plans to add it in the
future.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Only the very first prototypes had PCIe and there are no plant to add it
in the future.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Unify nON_SWITCH pinctrl configuration with imx6dl-victgo.dts.

This patch is a preparation to reduce duplicated code between vicut1 and
victgo.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Only the first prototypes had a TiWi module. There is no publicly available
hardware where this module is fitted and there are no plan to produce
any.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add support for Toradex Aster, small form-factor with header compatible
with Arduino Uno and Raspberry Pi (RPi) maker boards.

Additional detail available at
https://www.toradex.com/products/carrier-boards/aster-carrier-boardSigned-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add support for Toradex Iris, small form-factor Pico-ITX Colibri Arm
Computer Module family Carrier Board.

Additional details available at
https://www.toradex.com/products/carrier-board/iris-carrier-boardSigned-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The Toradex board Iris V2 has a SD-card slot with switchable
power.
Add a pinctrl sleep used when the card power is off to avoid
backfeeding to the card and add the "sleep" pinctrl to the
usdhc1 controller.
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

- Sort pinctrl nodes alphabetically
- End all pinctrl node names in grp and avoid using dashes
- Change pinctrl_usbc_id_1's node name to not use underscores
- Change the pmic's node name to pmic@8 per binding requirement
- Add sound-dai-cells to the codec node per binding requirement
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The following two nodes define module level functionality, move
them from the carrier board dts file to the SoM file.
While at it, reorder the properties in the gpio-keys node alphabetical.

- gpio-keys defining the wakeup pin
- memory node

The atmel touchscreen node can be used on any carrier board.
Move it from the carrier board to the module-level device tree and
keep it disabled.
Set the default pinmuxing to the dedicated connector available
on newer carrier boards and rename the pinctrl labels specifying
the INT/Reset signal to a common pattern.
  pinctrl_atmel_conn - uses 107/106 pins as used on dedicated connector
  pinctrl_atmel_adap - uses 28/30 pins as used with jumper wires
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The Toradex board Iris V2 has an LVDS transceiver which is
configured with 4 signals. Add corresponding pins into the
separate pingroup to be able to manage the transceiver.
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>