Add support for mapping some GPIO lines to IRQs. GPIO to IRQ mappings
were found out through experimentation, helped by having the GPIO as
output still toggling the IRQ input.
Based-on: http://patchwork.ozlabs.org/patch/660534/
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Add a generic mmio gpio controller based driver and probe it
through device tree.
Use aliases for base calculation until we converted all users to
device tree or named gpios.
Convert bcm63xx_enet's ephy-reset gpio to use a named gpio.
While at it, remove the duplicate reset gpio defintion for livebox.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 44565
Add the required nodes for the interrupt controllers and register
them through DT when a DTB is present.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 43457
