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The code that handles the coherency fabric of Armada 370 and Armada XP in arch/arm/mach-mvebu/coherency.c made the assumption that there was only one type of coherency fabric. Unfortunately, it turns out that upcoming SoCs have a slightly different coherency unit. In preparation to the introduction of the coherency support for more SoCs, this commit: * Introduces a data associated to the compatible string in the compatible string match table, so that the code can differantiate the variant of coherency unit being used. * Separates the coherency unit initialization code into its own function. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Link: https://lkml.kernel.org/r/1397483228-25625-2-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>