This patch add the dt node for the syscon register present on the
Allwinner A64.

Only two register are present in this syscon and the only one useful is
the one dedicated to EMAC clock.
Signed-off-by: NCorentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The USB PHY in A64 has a "pmu0" region, which controls the EHCI/OHCI
controller pair that can be connected to the PHY0.

Add the MMIO region for PHY node.
Signed-off-by: NIcenowy Zheng <icenowy@aosc.io>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

Allwinner A64 have a dedicated pin controller to manage the PL pin bank.
As the driver and the required clock support are added, add the device
node for it.
Signed-off-by: NIcenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

A64 SoC have a CCU (r_ccu) in PRCM block.

Add the device node for it.

The mux 3 of R_CCU is an internal oscillator, which is 16MHz according
to the user manual, and has only 30% accuracy based on our experience
on older SoCs. The real mesaured value of it on two Pine64 boards is
around 11MHz, which is around 70% of 16MHz.
Signed-off-by: NIcenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

On many boards UART1 connects to a Bluetooth chip, so add the pinctrl
nodes for the only pins providing access to that UART. That includes
those pins for hardware flow control (RTS/CTS).
Signed-off-by: NAndre Przywara <andre.przywara@arm.com>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: NChen-Yu Tsai <wens@csie.org>

The eMMC controller seem to have a maximum frequency of 200MHz, while the
regular MMC controllers are capped at 150MHz.

Since older SoCs cannot go that high, we cannot change the default maximum
frequency, but fortunately for us we have a property for that in the DT.

This also has the side effect of allowing to use the MMC HS200 and SD
SDR104 modes for the boards that support it (with either 1.2v or 1.8v IOs).
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: NFlorian Vaussard <florian.vaussard@heig-vd.ch>
Acked-by: NChen-Yu Tsai <wens@csie.org>

The A64 only has a single set of pins for each MMC controller. Since we
already have boards that require all of them, let's add them to the DTSI.
Reviewed-by: NAndre Przywara <andre.przywara@arm.com>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: NFlorian Vaussard <florian.vaussard@heig-vd.ch>
Acked-by: NChen-Yu Tsai <wens@csie.org>

The A64 has 3 MMC controllers, one of them being especially targeted to
eMMC. Among other things, it has a data strobe signal and a 8 bits data
width.

The two other are more usual controllers that will have a 4 bits width at
most and no data strobe signal, which limits it to more usual SD or MMC
peripherals.
Signed-off-by: NAndre Przywara <andre.przywara@arm.com>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: NFlorian Vaussard <florian.vaussard@heig-vd.ch>
Acked-by: NChen-Yu Tsai <wens@csie.org>

All dts files for the sunxi platform have been switched to the generic
pinconf bindings. As a result, the sunxi specific pinctrl macros are
no longer used.

Remove the #include entry with the following command:

    sed -i -e '/pinctrl\/sun4i-a10.h/D' \
	arch/arm64/boot/dts/allwinner/*.dts?
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

Allwinner A64 SoC has a MUSB controller like the one in A33, so add
a node for it, just use the compatible of A33 MUSB.

Host mode is tested to work properly on Pine64 and will be added into
the device tree of Pine64 in next patch.

Peripheral mode is also tested on Pine64, by changing dr_mode property
of usb_otg node and use a non-standard USB Type-A to Type-A cable.
Signed-off-by: NIcenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

Allwinner A64 have two HCI USB controllers, a OTG controller and a USB
PHY device which have two ports. One of the port is wired to both a HCI
USB controller and the OTG controller, which is currently not supported.
The another one is only wired to a HCI controller, and the device node of
OHCI/EHCI controller of the port can be added now.

Also the A64 USB PHY device node is also added for the HCI controllers to
work.
Signed-off-by: NIcenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

Two branches were incorrectly sent without having the necessary
header file changes. Rather than back those out now, I'm replacing
the symbolic names for the clks and resets with the numeric
values to get 'make allmodconfig dtbs' back to work.

After the header file changes are merged, we can revert this
patch.

Fixes: 6bc37fac ("arm64: dts: add Allwinner A64 SoC .dtsi")
Fixes: 50784e61 ("dts: arm64: db820c: add pmic pins specific dts file")
Acked-by: NAndre Przywara <andre.przywara@arm.com>
Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: NSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

The Allwinner A64 SoC is a low-cost chip with 4 ARM Cortex-A53 cores
and the typical tablet / TV box peripherals.
The SoC is based on the (32-bit) Allwinner H3 chip, sharing most of
the peripherals and the memory map.
Although the cores are proper 64-bit ones, the whole SoC is actually
limited to 4GB (including all the supported DRAM), so we use 32-bit
address and size cells. This has the nice feature of us being able to
reuse the DT for 32-bit kernels as well.
This .dtsi lists the hardware that we support so far.
Signed-off-by: NAndre Przywara <andre.przywara@arm.com>
Acked-by: NRob Herring <robh@kernel.org>
Acked-by: NChen-Yu Tsai <wens@csie.org>
[Maxime: Convert to CCU binding, drop the MMC support for now]
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>