diff --git a/bdk/soc/t210.h b/bdk/soc/t210.h
index e48f53a..ac703ef 100644
--- a/bdk/soc/t210.h
+++ b/bdk/soc/t210.h
@@ -281,7 +281,6 @@
 /*! Special registers. */
 #define EMC_SCRATCH0 0x324
 #define  EMC_HEKA_UPD BIT(30)
-#define  EMC_SEPT_RUN BIT(31)
 
 /*! Flow controller registers. */
 #define FLOW_CTLR_HALT_COP_EVENTS  0x4
diff --git a/bdk/utils/types.h b/bdk/utils/types.h
index 8418da0..e53c4f1 100644
--- a/bdk/utils/types.h
+++ b/bdk/utils/types.h
@@ -71,7 +71,6 @@ typedef int bool;
 #define BOOT_CFG_FROM_LAUNCH BIT(1)
 #define BOOT_CFG_FROM_ID     BIT(2)
 #define BOOT_CFG_TO_EMUMMC   BIT(3)
-#define BOOT_CFG_SEPT_RUN    BIT(7)
 
 #define EXTRA_CFG_KEYS    BIT(0)
 #define EXTRA_CFG_PAYLOAD BIT(1)
@@ -79,7 +78,6 @@ typedef int bool;
 
 #define EXTRA_CFG_NYX_UMS    BIT(5)
 #define EXTRA_CFG_NYX_RELOAD BIT(6)
-#define EXTRA_CFG_NYX_SEPT   BIT(7)
 
 typedef enum _nyx_ums_type
 {
@@ -92,13 +90,6 @@ typedef enum _nyx_ums_type
 	NYX_UMS_EMUMMC_GPP
 } nyx_ums_type;
 
-typedef enum _nyx_sept_type
-{
-	NYX_SEPT_DUMP = 0,
-	NYX_SEPT_CAL0,
-	NYX_SEPT_EMUF
-} nyx_sept_type;
-
 typedef struct __attribute__((__packed__)) _boot_cfg_t
 {
 	u8 boot_cfg;
@@ -113,7 +104,6 @@ typedef struct __attribute__((__packed__)) _boot_cfg_t
 			char emummc_path[0x78]; // emuMMC/XXX, ASCII null teminated.
 		};
 		u8 ums;  // nyx_ums_type.
-		u8 sept; // nyx_sept_type.
 		u8 xt_str[0x80];
 	};
 } boot_cfg_t;
diff --git a/bdk/utils/util.h b/bdk/utils/util.h
index ea6daea..5e7e913 100644
--- a/bdk/utils/util.h
+++ b/bdk/utils/util.h
@@ -36,7 +36,6 @@ typedef enum
 typedef enum
 {
 	NYX_CFG_UMS  = BIT(6),
-	NYX_CFG_SEPT = BIT(7),
 
 	NYX_CFG_EXTRA = 0xFF << 24
 } nyx_cfg_t;