Add nodes for the 3 i2c controllers found on A23 SoCs to the sun8i DTSI.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

This adds pin-muxing info for the i2c controller / port combinations
which are known to be used on actual boards.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

Add nodes for the 3 mmc controllers found on A23 SoCs to the sun8i DTSI.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

This adds pin-muxing info for the mmc controller / port combinations
which are known to be used on actual boards.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

The MMC module clocks on sun8i are the same as those found on
previous Allwinner SoCs, module 0 clocks.

This patch adds the clocks nodes to the dtsi with existing drivers.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

R_UART is available on extra pads on certain tablets, which makes it
ideal for use as a console. Here we add the pins for it.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

uart0 on sun8i is only muxed with mmc0, which makes it a poor choice
for the console. However, some tablets only have pads for uart0
available on the circuit board.

Here we add the uart0 pinmux set for people who need it.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

Now that we have a driver for the R_PIO controller,
add the corresponding device node to the dtsi.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

Now that we have a driver for the sun8i PIO controller,
add the corresponding device node to the dtsi.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

sun8i shares the same rtc hardware as sun6i. Now that we have a driver
for it, add a device node to the DTSI for it so we can use it.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

With sun8i PRCM support available, we can add the PRCM clock and
reset controller nodes to the DTSI. Also update R_UART's clock
phandle and add it's reset control phandle.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

The A23 has the same MMIO reset controllers matching the clocks gates,
just like in the A31. This patch adds the reset controller nodes and
the reset control phandles for the peripherals needing them to the
DTSI.

Unlike the sun6i DTSI, this patch uses sun6i-a31-clock-reset for
ahb1_rst. sun6i-a31-ahb-reset is for early init, and requires some
additions to the machine code. It is used to support the hstimer.
However the hstimer on sun8i only has 1 timer, which is somewhat
useless. Support for it will probably not be added. Hence the
decision to use sun6i-a31-clock-reset here to avoid the changes to
sun8i machine code.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

Now that we have support for sun8i specific clocks in the driver,
add the corresponding clock nodes to the DTSI. Also update the
existing peripherals with the correct clocks.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

The Allwinner A23 is a tablet oriented SoC with 2 Cortex-A7 cores
and a Mali-400MP2 GPU.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>