RFC: what do we do with system controllers?

[Russell King - ARM Linux]

On Tue, Feb 28, 2012 at 06:48:12AM +0100, Linus Walleij wrote:
> Mainly addressed to Greg but anyone is welcome to join the
> discussion...
> 
> Several ARM platforms have system controllers. In this I
> include all custom terminology such as:
> 
> - System Control
> - Chip Controller
> - Core Module control registers
> - Power Reset Control Management Units
> - Multimedia Communications Port

Why do you include this?  If you include this, you should include things
like SSP/SPI ports, I2C and other such buses.