diff options
| author | Wei Li <liwei213@huawei.com> | 2018-11-08 09:08:29 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-13 09:16:10 +0100 |
| commit | f2e78c08e8442f0b9098edc0fa6ceae1b83520e1 (patch) | |
| tree | 83ecb245608f1751d1755a39cc7d99dd182f9092 /drivers/scsi/ufs/ufshcd.c | |
| parent | c97a2a726cef389dd0f85f12cb8a3bddb5711d9c (diff) | |
scsi: ufs: Fix hynix ufs bug with quirk on hi36xx SoC
[ Upstream commit 8e4829c6f7470722c1f5a1dc5769ebe09ef036d6 ]
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: Wei Li <liwei213@huawei.com>
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
[jstultz: Forward ported from older code, slight tweak to commit message]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.c')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 54074dd483a7..0b81d9d03357 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -230,6 +230,8 @@ static struct ufs_dev_fix ufs_fixups[] = { UFS_FIX(UFS_VENDOR_SKHYNIX, UFS_ANY_MODEL, UFS_DEVICE_NO_VCCQ), UFS_FIX(UFS_VENDOR_SKHYNIX, UFS_ANY_MODEL, UFS_DEVICE_QUIRK_HOST_PA_SAVECONFIGTIME), + UFS_FIX(UFS_VENDOR_SKHYNIX, "hB8aL1" /*H28U62301AMR*/, + UFS_DEVICE_QUIRK_HOST_VS_DEBUGSAVECONFIGTIME), END_FIX }; |