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dm8168 sata error

Hi,TI

I use the the kernel from DVRRDK_04.01.00.02,but the sata seems not work fine.Here are the log:

root@dm816x-evm:~# ata2: exception Emask 0x10 SAct 0x0 SErr 0x4050002 action 0xe frozen
ata2: irq_stat 0x00000040, connection status changed
ata2: SError: { RecovComm PHYRdyChg CommWake DevExch }
ata2: hard resetting link
ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata2.00: failed to IDENTIFY (I/O error, err_mask=0x100)
ata2: hard resetting link
ata2: link is slow to respond, please be patient (ready=0)
ata2: COMRESET failed (errno=-16)
ata2: hard resetting link
ata2: link is slow to respond, please be patient (ready=0)
ata2: COMRESET failed (errno=-16)
ata2: hard resetting link
ata2: link is slow to respond, please be patient (ready=0)
ata2: COMRESET failed (errno=-16)
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata2: COMRESET failed (errno=-16)
ata2: reset failed, giving up
ata2: exception Emask 0x10 SAct 0x0 SErr 0x4050002 action 0xe frozen t4
ata2: irq_stat 0x00400040, connection status changed
ata2: SError: { RecovComm PHYRdyChg CommWake DevExch }
ata2: hard resetting link
ata2: link is slow to respond, please be patient (ready=0)
ata2: COMRESET failed (errno=-16)
ata2: hard resetting link
ata2: link is slow to respond, please be patient (ready=0)
ata2: COMRESET failed (errno=-16)
ata2: hard resetting link
ata2: link is slow to respond, please be patient (ready=0)
ata2: COMRESET failed (errno=-16)
ata2: limiting SATA link speed to 1.5 Gbps
ata2: hard resetting link
ata2: COMRESET failed (errno=-16)
ata2: reset failed, giving up
ata2: EH complete

the ssd is work fine on the dm8148 board.

Thank You!

vefone