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Diffstat (limited to 'MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.h')
-rw-r--r--MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.h b/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.h
index a423a921de..0a0cf71894 100644
--- a/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.h
+++ b/MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.h
@@ -77,6 +77,12 @@
#define UFS_HC_UTRLRSR BIT0
//
+// The initial value of the OCS field of UTP TRD or TMRD descriptor
+// defined in JEDEC JESD223 specification
+//
+#define UFS_HC_TRD_OCS_INIT_VALUE 0x0F
+
+//
// A maximum of length of 256KB is supported by PRDT entry
//
#define UFS_MAX_DATA_LEN_PER_PRD 0x40000