tree 5fe48f0dd7a2f8cbc087f98368851c6a09d371d9
parent 3fe5d5bd2dd92124f2a773c19fbc117e023a2ce3
author Guo Ren <ren_guo@c-sky.com> 1537084634 +0800
committer Guo Ren <ren_guo@c-sky.com> 1540486470 +0800

irqchip: add C-SKY APB bus interrupt controller

The driver is for C-SKY APB bus interrupt controller. It's a simple
interrupt controller which use pending reg to detect the irq and use
enable/disable reg to mask/unmask interrupt sources.

A lot of SOCs based on C-SKY CPU use the interrupt controller as root
controller.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>