Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>

Connect xtfpga board ethernet MAC to the clock in the DTS. Set up MAC
base frequency in the platform data in case of build w/o CONFIG_OF.
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>

With this change the board needs to set up single clock object, users of
this clock will get correct frequency automatically.
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>

The recommended compatible string format, according to the ePAPR v1.1 standard,
is "manufacturer,model". Change the xtensa cpu compatible strings to
"cdns,xtensa-cpu". Also, change the boards compatible strings in a similar way.

The pic compatible string will be dealt with in a separate patch.
Signed-off-by: NBaruch Siach <baruch@tkos.co.il>
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>

Extract xtensa built-in interrupt controller implementation from
xtensa/kernel/irq.c and move it to other irqchips, providing way to
instantiate it from the device tree.
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NChris Zankel <chris@zankel.net>

Add common XTFPGA parts as *.dtsi (base board, flash) and DTS for LX60
and for ML605.
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NChris Zankel <chris@zankel.net>