[PATCH 04/10] bus: introduce an Marvell EBU MBus driver

Arnd Bergmann arnd at arndb.de
Fri Mar 8 17:54:29 EST 2013


On Friday 08 March 2013, Jason Gunthorpe wrote:
> Future patches could support fully dyanmic window address assignment,
> but I'm honestly having a hard time seeing a use case for this..

The main advantage I can see for going fully dynamic is that we can use
a larger aperture and more windows for PCIe on systems that don't use
all of the other windows from the ${SOC}.dtsi file. If we don't have
a NAND chip connected, the ${BOARD}.dts file can easily mark the nand
controller node as status="disabled" and we don't have to give it a
physical address.

It's not a strong reason, but I think it's nice and clean to assign
the windows automatically and exactly for the hardware that we are
going to use.

	Arnd



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