Add support for the Zodiac Inflight Innovations i.MX51-base SCU3 Ethernet
Switch Board (ESB)

Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: cphealy@gmail.com
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

With old bindings imx_gpc_onecell_data always sets num_domains to 2 so
the DISPMIX domain can't actually be referenced. The pd is still defined
and pm core shuts it down as "unused" so display can't work.

Fix this by converting to new gpc bindings by adding pgc nodes and
referencing the newly-defined &pu_disp domain from &lcdif.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

i.MX6SX has a 16KB always-on ocram bank called
ocram_s, enable it as another mmio sram.
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>

100/200MHz states for USDHC3 are not required since the SoC
does not support modes faster than DDR52 for the on board eMMC.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

VDDD is connected to VGEN4 of the PF0100. This rail should only
run at 1.8V since there are multiple consumer and they all
expect the rail to be at 1.8V.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Remove the 2.5V regulator, it does not exist. There is 3.3V and
3.3V_AUDIO provided to the module through the edge connector,
model those as fixed regulators like we use to do in other
Colibri device trees. The SGTL5000 uses 3.3V_AUDIO as VDDA. Note
that the driver derives the analog ground voltage (VAG) from this
supply. The new value should allow higher output swings before
clipping occurs. Refer to the SGTL5000 datasheet for details.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The fixed 1.8V regulator is not used, and there is in fact no
fixed 1.8V regulator on the module. Remove it.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Use the disable-wp to indicate that Apalis and Colibri iMX6 do not
make use of the native write-protect signal available on the i.MX 6
SoCs. This prevents warnings:
  mmc0: host does not support reading read-only switch, assuming write-enable
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Use no-1-8-v device tree property to indicate that the board does
not support 1.8V signaling. The property voltage-ranges seems not
appropriate in our case since we do not have level shifters in
place.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add the 3.3V main supply on the carrier board. Currently as a fixed
supply since not all consumer are modeled yet. This gets also rid of
some missing supply warnings.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add Apalis UART1 as default serial console.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add support for the Zodiac Inflight Innovations SCU2 Mezz
board (i.MX51-based).

Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: cphealy@gmail.com
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Since commit 654f2b93 ("crypto: caam - allow retrieving 'era' from
register") the CAAM driver is capable of obtaining the era version by
reading the appropriate CAAM registers, so let the CAAM driver discover
the era version in run-time instead of hardcoding such information in the
device tree.

According to Documentation/devicetree/bindings/crypto/fsl-sec4.txt the
'fsl,sec-era' is an optional property and this can be safely removed
now.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The added DTS contains a combined description of LogicPD MX31 Lite
SoM devices, peripherals are routed to ports on a baseboard:
* PATA controller,
* SD/MMC controller,
* 2 GPIO LEDs,
* UART controllers,
* Freescale MC13783 MFD connected over SPI,
* SMSC LAN9117,
* ST Micro NAND SLC, 64 MiB,
* Intel NOR flash, 16 MiB.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The change adds a number of basic peripherals found on i.MX31 SoC:
* GPIO controllers,
* I2C master controllers,
* SPI master controllers,
* ATA controller,
* SDHC controllers,
* RTC, watchdog and PWM contollers,
* SDMA,
* IRAM,
* NAND and WEIM controllers on EMI.

The added controller devices were tested on Freescale i.MX31 powered
LogicPD Lite SoM and baseboard.

DMA functionality was tested on SDHC and SPI controllers so far,
thus dmas properties are added to those device nodes only.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Currently the following DTC warnings are seen with W=1:

arch/arm/boot/dts/imx51-babbage.dtb: Warning (unique_unit_address): /usbphy/usbphy@0: duplicate unit-address (also used in node /usbphy/usbh1phy@0)
arch/arm/boot/dts/imx51-eukrea-mbimxsd51-baseboard.dtb: Warning (unique_unit_address): /usbphy/usbphy@0: duplicate unit-address (also used in node /usbphy/usbh1phy@0)

Fix it by moving the USB PHY nodes outside of simple-bus and drop the
unneeded unit-address, which matches the bindings documentation
at Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt

While at it rename the USB PHY node to usbphy1 for consistency.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The OPP properties, like "operating-points", should either be present
for all the CPUs of a cluster or none. If these are present only for a
subset of CPUs of a cluster then things will start falling apart as soon
as the CPUs are brought online in a different order. For example, this
will happen because the operating system looks for such properties in
the CPU node it is trying to bring up, so that it can create an OPP
table.

Add such missing properties.

Fix other missing properties (like clocks, supply, clock latency) as
well to make it all work.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

According to i.MX6 datasheet, the LDO_1P1's typical
programming operating range is 1.0V to 1.2V, and
the LDO_2P5's typical programming operating range
is 2.25V to 2.75V, correct LDO_1P1 and LDO_2P5's
regulator range settings for i.MX6 SoCs.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Per Documentation/process/license-rules.rst the SPDX notation for
header file should be /* */ style, so fix it accordingly.

Fixes: 9f30b6b1 ("ARM: dts: imx: Add basic dtsi file for imx6sll")
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

i.MX6ULL has different operating ranges than i.MX6UL so add the
operating points for the i.MX6ULL and remove them from board device
trees. A 25mV offset is added to the minimum allowed values like for the
i.MX6UL.
The valid frequencies are now selected by the cpufreq driver according
to ratings stored in fuses since commit 0aa9abd4 ("cpufreq: imx6q:
check speed grades for i.MX6ULL")
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The RMI4 touchscreen driver applied inversion and axis swap in the
wrong order, violating the DT binding for those properties. This was fixed in
645a397d, so correct the RDU1 DT to apply the inversion to the
correct axis.

Tested on Zii RDU1 00-5105-30 rev B
Signed-off-by: Nick Dyer <nick@shmanahar.org>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

This renames usbphy nodes 2 & 3, so that they follow the same
format as usbphy node 0 & 1 from imx53.dtsi.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Add information about 3V3 power rail to avoid kernel warnings,
that dummy regulators have been added.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Pinctrl_usbh1reg defines pinmux setting for reset GPIO used by
usbh1phy, but is not referenced by that node. Fix that.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The cooling device properties, like "#cooling-cells" and
"dynamic-power-coefficient", should either be present for all the CPUs
of a cluster or none. If these are present only for a subset of CPUs of
a cluster then things will start falling apart as soon as the CPUs are
brought online in a different order. For example, this will happen
because the operating system looks for such properties in the CPU node
it is trying to bring up, so that it can register a cooling device.

Add such missing properties.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

On i.MX6SLL EVK board, SD3 slot can be used for
WiFi and other SD accessories, enable it.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

RAVE SP found on RDU2 implements power button control compatible with
the rave-sp-pwrbutton driver. Add a node to make it availible.

Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: cphealy@gmail.com
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

RAVE SP found on RDU2 implements backlight control compatible with the
rave-sp-backlight driver. Add a node to make it availible.

Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: cphealy@gmail.com
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

ZII's RDU2s come with two EEPROMs attached to RAVE SP. Add
corresponding nodes to make them availible.

Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: cphealy@gmail.com
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

ZII's RDU1s come with up to 3 EEPROMs attached to RAVE SP. Add
corresponding nodes to make them availible.

Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: cphealy@gmail.com
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The hog pinctrl hog is meant for pins that do not have an
associated driver.

The MX53_PAD_GPIO_0__CCM_SSI_EXT1_CLK pin is the one that
provides the MCLK signal to the SGTL5000 codec, so a
better represenation is to move it under the codec node.

While at it, change the pinctrl value from 0x80000000 to the
POR reset value of register IOMUXC_SW_PAD_CTL_PAD_GPIO_0.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Adopt the SPDX license identifier headers to ease license compliance
management.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The sahara crypto block on i.MX51 has the same IP version as
the one on i.MX53.

Add support for it.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

The wake-up pin is pulled low with 100kOhm on the carrier board.
The current configuration of 100kOhm pull-up caused lots of
interrupts, especially during boot up. Make sure the pin is at a
reasonable level at startup by pulling it low on SoC side too.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Muxing the card detect only in the carrier board device tree
overwrites the USDHC muxing in the module level device tree.
Move card detect to the module level device tree since this
is also a default pinout of the Colibri standard. If a carrier
board requires a different setting it still can overwrite the
nodes in the carrier board specific device tree.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Do not rely on reset/boot defaults and use a default GPIO setting
with pull-up enabled.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

This makes it possible to enable earlycon for debugging by just passing
an empty "earlycon" argument on the kernel command-line.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

According to the i.MX50 Reference Manual, the SoC features one USB OTG
and one host controller. Remove the non-existent instances from the
DTS which probably got initially copied from the mx53 DTS.
Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

iMX50 pin mux options for pads KEY_COL2 and KEY_COL3 allow muxing the same
KEY_COL instances as the pad name. Fix typos shifting KEY_COL instances.
Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Currently when trying to use the 'devmem' tool to read/write
registers the following bus error is observed:

[   82.689185] Unhandled fault: external abort on non-linefetch (0x1018) at 0xb6ff10c4
[   82.697071] pgd = (ptrval)
[   82.699920] [b6ff10c4] *pgd=a87c5831, *pte=73fa8383, *ppte=73fa8a33
Bus error

Add the aipstz nodes, so that the following function from
imx51_dt_init() can work properly:

	imx_aips_allow_unprivileged_access("fsl,imx51-aipstz");

After adding these nodes, 'devmem' tool can work correctly,
which is very useful for debugging purposes.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>