Add UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS for a broken host controller
of the 64-bit addressing supported capability.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
drivers/ufs/core/ufshcd.c | 2 ++
include/ufs/ufshcd.h | 6 ++++++
2 files changed, 8 insertions(+)
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 {
--
2.25.1
