[PATCH v2] arm: Add basic support for new Marvell Armada 370 and Armada XP SoC

On Monday 11 June 2012, Gregory CLEMENT wrote:

You'll find in this patch set the new version of the initial support for a
new family of ARMv7-compatible Marvell SoCs initially submitted by my
colleague Thomas Petazzoni. Following the conclusion of the discussion when
we submitted our first version we have chosen to add this support for this
SoC family in the to support in the arch/arm/mach-mvebu/ directory.

As for the previous release, both the Armada 370 and the Armada XP SoCs are
supported in this directory, and we are able to build a single kernel image
that boots on both SoCs. Both SoCs use the PJ4B processor, a
Marvell-developed ARM core that implements the ARMv7 instruction set. We are
currently using Marvell evaluation boards for both of those SoCs, and the
support for those boards is added in this patch set.

Ok, very good.

Andrew Lunn asked for refactoring the _restart() function to being used by
any MVEBU SOC, but we didn't find a nice way to do it. Indeed the registers
mapping differs between the SOC and the bit mask too. A solution could be to
get this mapping through the device tree, but we are not sure it was a good
usage of the device tree.

As I suggested in my reply to patch 4/8, I think this can be encapsulated
in one file that acts as a driver for the generic ("bridge regs") registers
and provides functions for that based on the "compatible" property.

On a more general note, I'd prefer to have the patches renaming the existing
files first for the mach-mvebu directory first, and then adding your patches
on top.

I can provide a new version of the patch I did once we have agreement on what
goes where. I've put some more thought into it and the best I could come up
with is now.

arch/arm/mach-{orion5x,dove,kirkwood,mv78xx0}/include/mach/*
	-> arch/arm/mach-mvebu/include/mach/
arch/arm/plat-orion/include/plat/*
	-> arch/arm/mach-mvebu/include/mach/
arch/arm/plat-orion/*
	-> arch/arm/mach-mvebu/
arch/arm/mach-{orion5x,dove,kirkwood,mv78xx0}/{add-map,common,irq,mpp,pci}.*
	-> arch/arm/mach-mvebu/
arch/arm/mach-kirkwood/board-* (DT files)
	-> arch/arm/mach-mvebu/

This is basically the same as the patch I sent out before, but with the
new machine name, and leaving all the *-setup.c files in their existing
locations, where they can either get removed after being converted to DT
or after being assumed dead.

	Arnd