From 6554400d6f66b9494a0c0f07712ab0a9d307eb01 Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Fri, 3 Jun 2022 20:05:19 +0900 Subject: [PATCH] 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 Signed-off-by: Martin K. Petersen --- 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 01fb4ba..88e567c 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 a922714..795c895 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 { -- 2.7.4