WD20EARS: finally reporting 4KByte sector size!

[Mark Lord <kernel@teksavvy.com>]

I picked up my third WD 2TB "Green" drive today,
and lo and behold.. the firmware (51.0AB51) actually
reports the real physical sector size (finally!).

TA device, with non-removable media

        Model Number:       WDC WD20EARS-60MVWB0

        Serial Number:      WD-WCAZA4297731

        Firmware Revision:  51.0AB51

        Transport:          Serial, SATA 1.0a, SATA II Extensions, SATA Rev 2.5,
SATA Rev 2.6
Standards:

        Supported: 8 7 6 5

        Likely used: 8

Configuration:

        Logical         max     current

        cylinders       16383   16383

        heads           16      16

        sectors/track   63      63

        --

        CHS current addressable sectors:   16514064
        LBA    user addressable sectors:  268435455
        LBA48  user addressable sectors: 3907029168
        Logical  Sector size:                   512 bytes
        Physical Sector size:                  4096 bytes
        Logical Sector-0 offset:                  0 bytes
        device size with M = 1024*1024:     1907729 MBytes
        device size with M = 1000*1000:     2000398 MBytes (2000 GB)
        cache/buffer size  = unknown
        Form Factor: 3.5 inch
Capabilities:
        LBA, IORDY(can be disabled)
        Standby timer values: spec'd by Standard, with device specific minimum
        R/W multiple sector transfer: Max = 16  Current = 0
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4
             Cycle time: no flow control=120ns  IORDY flow control=120ns
Commands/features:
        Enabled Supported:
           *    SMART feature set
                Security Mode feature set
           *    Power Management feature set
           *    Write cache
           *    Look-ahead
           *    WRITE_BUFFER command
           *    READ_BUFFER command
           *    NOP cmd
           *    DOWNLOAD_MICROCODE
           *    48-bit Address feature set
           *    Device Configuration Overlay feature set
           *    Mandatory FLUSH_CACHE
           *    FLUSH_CACHE_EXT
           *    SMART error logging
           *    SMART self-test
           *    General Purpose Logging feature set
           *    64-bit World wide name
           *    WRITE_UNCORRECTABLE_EXT command
           *    {READ,WRITE}_DMA_EXT_GPL commands
           *    Segmented DOWNLOAD_MICROCODE
           *    Gen1 signaling speed (1.5Gb/s)
           *    Gen2 signaling speed (3.0Gb/s)
           *    SMART Command Transport (SCT) feature set
           *    SCT LBA Segment Access (AC2)
           *    SCT Error Recovery Control (AC3)
           *    SCT Features Control (AC4)
           *    SCT Data Tables (AC5)
                unknown 206[12] (vendor specific)
                unknown 206[13] (vendor specific)
Security:
        Master password revision code = 65534
                supported
        not     enabled
        not     locked
        not     frozen
        not     expired: security count
                supported: enhanced erase
        384min for SECURITY ERASE UNIT. 384min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 50014ee2b031c1d4
        NAA             : 5
        IEEE OUI        : 0014ee
        Unique ID       : 2b031c1d4
Integrity word not set (found 0x0000, expected 0x73a5)