diff options
| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2022-06-03 20:05:19 +0900 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-06-13 21:57:34 -0400 |
| commit | 6554400d6f66b9494a0c0f07712ab0a9d307eb01 (patch) | |
| tree | 454686f011b6ee8be056a5c9710b142a4226b924 | |
| parent | 7522c08d1e55a0305304611a9d1d5f0a3db210ec (diff) | |
| download | lwn-6554400d6f66b9494a0c0f07712ab0a9d307eb01.tar.gz lwn-6554400d6f66b9494a0c0f07712ab0a9d307eb01.zip | |
scsi: ufs: core: Add UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS
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@renesas.com
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/ufs/core/ufshcd.c | 2 | ||||
| -rw-r--r-- | include/ufs/ufshcd.h | 6 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 01fb4bad86be..88e567c3ba0b 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -2216,6 +2216,8 @@ 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/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index a92271421718..795c8951341d 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -577,6 +577,12 @@ 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 { |