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project by providing documentation (under NDA) and hardware for testing. This commit is the first result of the cooperation, and adds support for several of their new controllers that we didn't support before (and probably newer would have without this arrangement). Add support for the Promise SATA150 TX2/TX4 and the Promise TX4000 controllers. This also adds support for various motherboard fitted Promise SATA/ATA chips. Note that this code uses memory mapped registers to minimize overhead. I belive FreeBSD has made another first in the Open Source world by being able to release support for this :)