When enabled this allows 512n and 4Kn drives to be used with a single build.
(So far all ATA SSDs use 512 byte logical sectors)
Change-Id: I902d2318ca8abb581699c0bca68d6e3ec227d064
Basically this requires un-hardcoding SECTOR_SIZE everywhere, in
favor of using a variable containing what was reported in IDENTIFY INFO.
Note that the rest of the storage subsystem still needs to be fixed up!
Change-Id: I7f2dbd54ff2bc16b15010721e011949cbf308e12
This lets us *natively* handle varying physical sector sizes
without playing games and lying about the logical sector size.
(The original drives use 4K _physical_ sectors with 512B logical
sectors, but you have to access everything in 4K blocks...)
Achieve this by splitting the MAX_PHYS_SECTOR_SIZE code out
of the main ATA driver and re-using it.
Change-Id: I0bc615ab4562f1e3e83171a8633c74fb60c7da1f
