From: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com
[ Upstream commit 6554400d6f66b9494a0c0f07712ab0a9d307eb01 ]
Add UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS for host controllers which do not support 64-bit addressing.
Link: https://lore.kernel.org/r/20220603110524.1997825-3-yoshihiro.shimoda.uh@rene... Signed-off-by: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/ufs/ufshcd.c | 2 ++ drivers/scsi/ufs/ufshcd.h | 6 ++++++ 2 files changed, 8 insertions(+)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 874490f7f5e7..95be78549ed2 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -2210,6 +2210,8 @@ static inline int ufshcd_hba_capabilities(struct ufs_hba *hba) int err;
hba->capabilities = ufshcd_readl(hba, REG_CONTROLLER_CAPABILITIES); + if (hba->quirks & UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS) + hba->capabilities &= ~MASK_64_ADDRESSING_SUPPORT;
/* nutrs and nutmrs are 0 based values */ hba->nutrs = (hba->capabilities & MASK_TRANSFER_REQUESTS_SLOTS) + 1; diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 94f545be183a..1745144eb904 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -602,6 +602,12 @@ enum ufshcd_quirks { * support physical host configuration. */ UFSHCD_QUIRK_SKIP_PH_CONFIGURATION = 1 << 16, + + /* + * This quirk needs to be enabled if the host controller has + * 64-bit addressing supported capability but it doesn't work. + */ + UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS = 1 << 17, };
enum ufshcd_caps {