Add support for i2c5, which is used to access the
external I2C bus on connector J22 of the imx8mp-evk.

Limit the speed to 100kHz since this is an external I2C bus.

Disabled by default, since it is shared with the CAN1 bus.

To enable i2c5, you need to disable the CAN1 function, enable the i2c5
function and also configure the CAN1/I2C5_SEL GPIO to HIGH to
select i2c5 instead of CAN1. This can be done by defining a gpio-hog
inside the pca6416 node, in your board device tree, like in this example:

&flexcan1 {
	status = "disabled";
};

&i2c5 {
	status = "okay";
};

&pca6416 {
	can1-i2c5-sel-hog {
		gpio-hog;
		gpios = <2 GPIO_ACTIVE_HIGH>;
		output-high;
		line-name = "can1-i2c5-sel";
	};
};
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add gpio-line-names for the various GPIO's connected to the PCA6416
I/O expander on the imx8mp EVK.

This helps when using the new gpiod interface to find the GPIOs by name.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add more serial alias to imx8qm.dtsi file

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Oliver Graute <oliver.graute@kococonnector.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

add compatible string for usdhc3

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Oliver Graute <oliver.graute@kococonnector.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Enable the second PCIe port support on i.MX8MQ EVK board.
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The baseboard supports a PCIe slot with a 100MHz reference clock,
but it's controlled by a different GPIO, so a gated clock is
required.
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

This patch adds the device tree to support Toradex Verdin iMX8M Mini a
computer on module which can be used on different carrier boards.

The module consists of an NXP i.MX 8M Mini family SoC (either i.MX 8M
Mini Quad or 8M Mini DualLite), a PCA9450A PMIC, a Gigabit Ethernet PHY,
1 or 2 GB of LPDDR4 RAM, an eMMC, a TLA2024 ADC, an I2C EEPROM, an
RX8130 RTC, an optional SPI CAN controller plus an optional Bluetooth/
Wi-Fi module.

Anything that is not self-contained on the module is disabled by
default.

The device tree for the Dahlia includes the module's device tree and
enables the supported peripherals of the carrier board.

The device tree for the Verdin Development Board includes the module's
device tree as well as the Dahlia one as it is a superset and supports
almost all peripherals available.

So far there is no display functionality supported at all but basic
console UART, PCIe, USB host, eMMC and Ethernet and PCIe functionality
work fine.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add interrupt controller mode for the pca6416 on i.MX8MP EVK board's.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

With commit 15d16d6d ("kbuild: Add generic rule to apply
fdtoverlay"), overlay target can be used to simplify the build of DTB
overlays.  It also performs a cross check to ensure base DT and overlay
actually match.
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>

As suggested by commit 9ae8578b ("of: Documentation: change overlay
example to use current syntax"), there is no need to have overlay syntax
be hard coded in the device tree source file any more.
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>

Fix strange hex notation with mixed lower-case and upper-case letters.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

This patch adds support for the emtrion GmbH emCON-MX8M Mini modules.
They are available with NXP i.MX 8M Mini equipped with 2 or 4 GB Memory.

The devicetree imx8mm-emcon.dtsi is the common part providing all
module components and the basic support for the SoC. The support for the
avari baseboard in the developer-kit configuration is provided by the
emcon-avari dts files.
Signed-off-by: Reinhold Mueller <reinhold.mueller@emtrion.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add PCIe support to TQMa8MxML series.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

There are two decoders on the i.MX8M Mini controlled by the
vpu-blk-ctrl.  The G1 supports H264 and VP8 while the
G2 support HEVC and VP9.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

With the Hantro G1 and G2 now setup to run independently, update
the device tree to allow both to operate.  This requires the
vpu-blk-ctrl node to be configured.  Since vpu-blk-ctrl needs
certain clock enabled to handle the gating of the G1 and G2
fuses, the clock-parents and clock-rates for the various VPU's
to be moved into the pgc_vpu because they cannot get re-parented
once enabled, and the pgc_vpu is the highest in the chain.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The vpu is enabled by default, so there is no need to manually
enable it.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The ls1028a QDS board support different pluggable PHY cards.  Define the
nodes for these slots to be updated at boot time with overlay according
to board setup.
Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add gpio-line-names for the various GPIO's used on Gateworks Venice
boards. Note that these GPIO's are typically 'configured' in Boot
Firmware via gpio-hog therefore we only configure line names to keep the
boot firmware configuration from changing on kernel init.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Since commit 9a0f3b15 ("arm64: dts: imx8mn: Enable GPU")
imx8mn-venice-gw7902 will hang during kernel init because it uses
a MIMX8MN5CVTI which does not have a GPU.

Disable pgc_gpumix to work around this. We also disable the GPU devices
that depend on the gpumix power domain and pgc_gpu to avoid them staying
in a probe deferred state forever.

Cc: Adam Ford <aford173@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Fixes: 9a0f3b15 ("arm64: dts: imx8mn: Enable GPU")
Reviewed-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The i.MX8M Mini Application Processor Reference Manual, Rev. 3, 11/2020
documents AF MX8MM_IOMUXC_NAND_READY_B_SD3_RESET_B , add it into the
pinmux tables.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Like usb3_phy0 the default state of the usb3_phy1 should be disabled, so
it is only enabled on boards exposing this USB port.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The driver differs from clocks point of view, so the i.MX8QXP
is not backwards compatible with i.MX7ULP.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add mu5/6 for i.MX8QXP/QM, these two mu will be used for
communicating with general purpose Cortex-M4 cores.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add SCU RTC node to support SC RTC driver.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The slew rate and drive-strength of the i2c3 pads were much too
high. Bring them down to avoid signal quality issues.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

This adds support for the internal display of the Reform2 Laptop, which
is connected to the i.MX8MQ via a MIPI-DSI->eDP bridge chip. Clocking
is derived from a system PLL, which provides quite good rate matching
for the single supported display mode and keeps the video PLL free for
usage with the external display, which isn't supported yet.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Without a OPP table or a downstream TF-A running on the system the DDRC will
fail to probe, as it has no means to scale the DRAM frequency in that case.
This however will block the bus scaling driver to come up and this in turn
prevents other devices that hook into the interconnect from probing.

If the DDRC is disabled, the interconnect driver will simply ignore it. As
most systems don't want to scale the DRAM frequency, disable the node by
default and only enable it on the systems that actually uses this
capability and provides a valid OPP table in the DT.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Reviewed-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The Protonic PRT8MM is a low-cost agricultural Virtual Terminal. This
commit adds most of the board functionality sans the display output,
as the i.MX8MM display support isn't ready yet.
Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The CPU 'arm,armv8' compatible is only for s/w models, so remove it from
i.MX8QM CPU nodes.

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add PCIe support to GW71xx/GW72xx/GW73xx/GW7901/GW7902
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The i.MX8M-Nano features a GC7000. The Etnaviv driver detects it as:

    etnaviv-gpu 38000000.gpu: model: GC7000, revision: 6203
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add the DT node for the DISP blk-ctrl. With this in place the
display/mipi power domains should be functional.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Now that we have support for the power domain controller on the i.MX8MN,
we can put the USB controller in the respective power domain to allow
it to power down the PHY when possible.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add the DT node for the GPC, including all the PGC power domains,
some of them are not fully functional yet, as they require interaction
with the blk-ctrls to properly power up/down the peripherals.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add the PCIe support on iMX8MM EVK boards.
And set the default reference clock mode.
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Tim Harvey <tharvey@gateworks.com>
Tested-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add the PCIe support on i.MX8MM platforms.
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Tim Harvey <tharvey@gateworks.com>
Tested-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add the PCIe PHY support on iMX8MM platforms.
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Tim Harvey <tharvey@gateworks.com>
Tested-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

This adds the defines for the power domains provided by the VPU
blk-ctrl on the i.MX8MQ.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>