diff --git a/source/hal/source/platform/mps3/include/sse-300/peripheral_memmap.h b/source/hal/source/platform/mps3/include/sse-300/peripheral_memmap.h
index 85c7a8e..fd3ed15 100644
--- a/source/hal/source/platform/mps3/include/sse-300/peripheral_memmap.h
+++ b/source/hal/source/platform/mps3/include/sse-300/peripheral_memmap.h
@@ -1,6 +1,6 @@
 /*
- * SPDX-FileCopyrightText: Copyright 2022 Arm Limited and/or its affiliates <open-source-office@arm.com>
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-FileCopyrightText: Copyright 2022, 2024 Arm Limited and/or its affiliates
+ * <open-source-office@arm.com> SPDX-License-Identifier: Apache-2.0
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -65,10 +65,6 @@
 #define CMSDK_UART2_BASE         (0x49305000)       /* UART 2 Base Address */
 #define CMSDK_UART3_BASE         (0x49306000)       /* UART 3 Base Address Shield 0*/
 
-#define ETHOS_U_NPU_BASE           (0x48102000)    /* Ethos-U NPU base address*/
-#define ETHOS_U_NPU_TA0_BASE       (0x48103000)    /* Ethos-U NPU's timing adapter 0 base address */
-#define ETHOS_U_NPU_TA1_BASE       (0x48103200)    /* Ethos-U NPU's timing adapter 1 base address */
-
 #define CMSDK_UART4_BASE         (0x49307000)       /* UART 4 Base Address Shield 1*/
 #define CMSDK_UART5_BASE         (0x49308000)       /* UART 5 Base Address */
 /* #undef HDMI_AUDIO_BASE */
@@ -138,10 +134,6 @@
 #define SEC_SMSC9220_BASE        (0x51400000)       /* Ethernet SMSC9220 Base Address */
 #define SEC_USB_BASE             (0x51500000)       /* USB Base Address */
 
-#define SEC_ETHOS_U_NPU_BASE       (0x58102000)   /* Ethos-U NPU base address*/
-#define SEC_ETHOS_U_NPU_TA0_BASE   (0x58103000)   /* Ethos-U NPU's timing adapter 0 base address */
-#define SEC_ETHOS_U_NPU_TA1_BASE   (0x58103200)   /* Ethos-U NPU's timing adapter 1 base address */
-
 /* #undef SEC_USER_BASE */
 
 #define SEC_QSPI_XIP_BASE        (0x51800000)       /* QSPI XIP config Base Address */