From b376bc1f6b4258112d714fb4ee8e5d57b53625f2 Mon Sep 17 00:00:00 2001
From: Jeff Garzik <jgarzik@pobox.com>
Date: Sat, 28 Jan 2006 12:26:23 -0500
Subject: [PATCH] [libata ata_piix] Fix ICH6/7 map value interpretation

The previous change failed to properly mask out unrelated bits, which
resulted in a failure to detect devices.
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Reading git-format-patch failed