diff --git a/Makefile b/Makefile
index a69bfbb..d413263 100644
--- a/Makefile
+++ b/Makefile
@@ -1094,7 +1094,6 @@
         PROGRAMMABLE_RESET_ADDRESS \
         PSCI_EXTENDED_STATE_ID \
         RESET_TO_BL31 \
-        RESET_TO_BL31_WITH_PARAMS \
         SAVE_KEYS \
         SEPARATE_CODE_AND_RODATA \
         SEPARATE_BL2_NOLOAD_REGION \
@@ -1236,7 +1235,6 @@
         PSCI_EXTENDED_STATE_ID \
         RAS_EXTENSION \
         RESET_TO_BL31 \
-        RESET_TO_BL31_WITH_PARAMS \
         SEPARATE_CODE_AND_RODATA \
         SEPARATE_BL2_NOLOAD_REGION \
         SEPARATE_NOBITS_REGION \
diff --git a/bl31/aarch64/bl31_entrypoint.S b/bl31/aarch64/bl31_entrypoint.S
index b0c46dc..ed05864 100644
--- a/bl31/aarch64/bl31_entrypoint.S
+++ b/bl31/aarch64/bl31_entrypoint.S
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2022, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2021, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -67,7 +67,6 @@
 		_exception_vectors=runtime_exceptions		\
 		_pie_fixup_size=BL31_LIMIT - BL31_BASE
 
-#if !RESET_TO_BL31_WITH_PARAMS
 	/* ---------------------------------------------------------------------
 	 * For RESET_TO_BL31 systems, BL31 is the first bootloader to run so
 	 * there's no argument to relay from a previous bootloader. Zero the
@@ -78,7 +77,6 @@
 	mov	x21, 0
 	mov	x22, 0
 	mov	x23, 0
-#endif /* RESET_TO_BL31_WITH_PARAMS */
 #endif /* RESET_TO_BL31 */
 
 	/* --------------------------------------------------------------------
diff --git a/make_helpers/defaults.mk b/make_helpers/defaults.mk
index a66123a..771cef1 100644
--- a/make_helpers/defaults.mk
+++ b/make_helpers/defaults.mk
@@ -261,9 +261,6 @@
 # By default, BL1 acts as the reset handler, not BL31
 RESET_TO_BL31			:= 0
 
-# By default, clear the input registers when RESET_TO_BL31 is enabled
-RESET_TO_BL31_WITH_PARAMS	:= 0
-
 # For Chain of Trust
 SAVE_KEYS			:= 0