ahci: Add support for Cavium's fifth generation SATA controller
This patch adds support for Cavium's fifth generation SATA controller. It is an on-chip controller and complies with AHCI 1.3.1. As the controller uses 64-bit addresses it cannot use the standard AHCI BAR5 and so uses BAR4. Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com> Signed-off-by: Tejun Heo <tj@kernel.org>
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