arm64: dts: actions: Add MMC controller support for S900

Add MMC controller support for Actions Semi S900 SoC. There are 4 MMC
controllers in this SoC which can be used for accessing SD/MMC/SDIO cards.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

arm64: dts: actions: Add Reset Controller support for S900 SoC

Add reset controller property and bindings header for the
Actions Semi S900 SoC DTS.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

arm64: dts: actions: Add interrupt properties to pinctrl node for S900

Add interrupt properties to pinctrl node for Actions Semi S900 SoC.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

arm64: dts: Remove inconsistent use of 'arm,armv8' compatible string

The 'arm,armv8' compatible string is only for software models. It adds
little value otherwise and is inconsistently used as a fallback on some
platforms. Remove it from those platforms.

This fixes warnings generated by the DT schema.

Reported-by: Michal Simek <michal.simek@xilinx.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Antoine Tenart <antoine.tenart@bootlin.com>
Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Chanho Min <chanho.min@lge.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Wei Xu <xuwei5@hisilicon.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Scott Branden <scott.branden@broadcom.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Chunyan Zhang <zhang.lyra@gmail.com>
Acked-by: Robert Richter <rrichter@cavium.com>
Acked-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arm64: dts: actions: s900: Add DMA Controller

Add DMA controller node for Actions Semi S900 SoC.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>

arm64: dts: actions: s900: Add I2C controller nodes

Add I2C controller nodes for Actions Semiconductor S900 SoC.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
[AF: Squashed/added clocks, dropped pinctrl properties for now]
Signed-off-by: Andreas Färber <afaerber@suse.de>

arm64: dts: actions: s900: Add gpio properties to pinctrl node

Add gpio properties to pinctrl node for Actions Semi S900 SoC.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>

arm64: dts: actions: s900: Add pinctrl node

Add pinctrl nodes for Actions Semi S900 SoC.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>

arm64: dts: actions: s900: Add SPS node

Add Actions Semi S900 Smart Power System (SPS) node.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>

arm64: dts: actions: s900: Source CMU clock for UARTs

Remove fixed clock in Bubblegum-96 board and source CMU (Clock
Management Unit) clock for UART nodes in Actions Semi S900 SoC.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
[AF: Move/add clocks to SoC]
Signed-off-by: Andreas Färber <afaerber@suse.de>

arm64: dts: actions: s900: Add Clock Management Unit nodes

Add Actions Semi S900 Clock Management Unit (CMU) nodes.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>

arm64: dts: actions: Convert to new-style SPDX license identifiers

Move SPDX-License-Identifier to the top and add one for the Makefile.

Signed-off-by: Andreas Färber <afaerber@suse.de>

arm64: dts: Add Actions Semi S900 and Bubblegum-96

Add Device Trees for Actions Semiconductor S900 SoC and
uCRobotics Bubblegum-96 board.

UART0/1/4/6 interrupts are guesses.

Cc: 96boards@ucrobotics.com
Signed-off-by: Andreas Färber <afaerber@suse.de>