• Wei Li's avatar
    scsi: ufs: Fix hynix ufs bug with quirk on hi36xx SoC · 8e4829c6
    Wei Li authored
    Hynix ufs has deviations on hi36xx platform which will result in ufs bursts
    transfer failures.
    
    To fix the problem, the Hynix device must set the register
    VS_DebugSaveConfigTime to 0x10, which will set time reference for
    SaveConfigTime is 250 ns. The time reference for SaveConfigTime is 40 ns by
    default.
    
    This patch is necessary to boot on HiKey960 boards that use Hynix UFS chips
    (H28U62301AMR model: hB8aL1).
    
    Cc: Vinayak Holikatti <vinholikatti@gmail.com>
    Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
    Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
    Cc: linux-scsi@vger.kernel.org
    Signed-off-by: default avatarWei Li <liwei213@huawei.com>
    Signed-off-by: default avatarDmitry Shmidt <dimitrysh@google.com>
    [jstultz: Forward ported from older code, slight tweak to commit message]
    Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
    Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
    8e4829c6
ufshcd.c 220 KB