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/scsi/ufs/ufshcd.c | 3 ++-
drivers/scsi/ufs/ufshcd.h | 6 ++++++
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 3f9caafa91bf..a7bb3945c7c6 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -9513,7 +9513,8 @@ EXPORT_SYMBOL_GPL(ufshcd_dealloc_host);
*/
static int ufshcd_set_dma_mask(struct ufs_hba *hba)
{
- if (hba->capabilities & MASK_64_ADDRESSING_SUPPORT) {
+ if (!(hba->quirks & UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS) &&
+ hba->capabilities & MASK_64_ADDRESSING_SUPPORT) {
if (!dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(64)))
return 0;
}
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 {
--
2.25.1
