This adds a node for the clock and reset unit on rk3188 and rk3066 SoCs and
also updates the device nodes retrieve their clocks from there, instead of
the previous gate clock nodes.
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
Acked-By: NMax Schwarz <max.schwarz@online.de>
Tested-By: NMax Schwarz <max.schwarz@online.de>

With the newly introduced CPU_METHOD_OF_DECLARE is not necessary anymore
to reference the relevant smp_ops in the board file, but instead it can
simply be set by the enable-method property of the cpu nodes.
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
Signed-off-by: NOlof Johansson <olof@lixom.net>

Introduce the grf syscon and convert the pinctrl drivers for rk3066 and rk3188
to use it, instead of mapping the grf registers themselfs.
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
Tested-by: NMax Schwarz <max.schwarz@online.de>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>

The default behaviour of the uart-rx pins on the rk3188 is to be pulled up and
a lot of designs use diodes to even prevent them from being raised from the
outside.

Therefore change the rx-pin settings accordingly.

This also fixes a uart receive problem on mass production Radxa Rock boards.
Signed-off-by: NMax Schwarz <max.schwarz@online.de>
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>

Add dt-nodes for the sram on rk3066 and rk3188 including the reserved section
needed for smp bringup.
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
Tested-by: NUlrich Prinz <ulrich.prinz@googlemail.com>

Basic devicetree files for the rk3188 SoC. Also provided is a board
dts file for the upcoming Radxa Rock board using this SoC.
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>