diff --git a/source/hal/source/components/npu/CMakeLists.txt b/source/hal/source/components/npu/CMakeLists.txt
index 729a297..c53dd02 100644
--- a/source/hal/source/components/npu/CMakeLists.txt
+++ b/source/hal/source/components/npu/CMakeLists.txt
@@ -33,6 +33,12 @@
 # For the driver, we need to provide the CMSIS_PATH variable
 set(CMSIS_PATH ${CMSIS_SRC_PATH} CACHE PATH "Path to CMSIS directory")
 
+# Definitions that will be set.
+set(ETHOS_U_BASE_ADDR    "0x58102000"    CACHE STRING "Ethos-U NPU base address")
+set(ETHOS_U_IRQN         "56"            CACHE STRING "Ethos-U NPU Interrupt")
+set(ETHOS_U_SEC_ENABLED  "1"             CACHE STRING "Ethos-U NPU Security enable")
+set(ETHOS_U_PRIV_ENABLED "1"             CACHE STRING "Ethos-U NPU Privilege enable")
+
 # Driver needs to know what MAC configuration to build for.
 if(ETHOS_U_NPU_CONFIG_ID MATCHES "^[A-Z]([0-9]+$)")
     set(ETHOSU_MACS ${CMAKE_MATCH_1})
@@ -145,7 +151,11 @@
 target_compile_definitions(${ETHOS_U_NPU_COMPONENT}
     PUBLIC
     ARM_NPU
-    ${ETHOS_U_NPU_MEMORY_MODE_FLAG})
+    ${ETHOS_U_NPU_MEMORY_MODE_FLAG}
+    ETHOS_U_BASE_ADDR=${ETHOS_U_BASE_ADDR}
+    ETHOS_U_IRQN=${ETHOS_U_IRQN}
+    ETHOS_U_SEC_ENABLED=${ETHOS_U_SEC_ENABLED}
+    ETHOS_U_PRIV_ENABLED=${ETHOS_U_PRIV_ENABLED})
 
 # Display status
 message(STATUS "CMAKE_CURRENT_SOURCE_DIR: " ${CMAKE_CURRENT_SOURCE_DIR})
diff --git a/source/hal/source/components/npu/ethosu_npu_init.c b/source/hal/source/components/npu/ethosu_npu_init.c
index 9ccd887..e24ddd9 100644
--- a/source/hal/source/components/npu/ethosu_npu_init.c
+++ b/source/hal/source/components/npu/ethosu_npu_init.c
@@ -18,8 +18,6 @@
 #include "ethosu_npu_init.h"
 
 #include "RTE_Components.h"         /* For CPU related defintiions */
-#include "peripheral_memmap.h"      /* Peripheral memory map definitions. */
-#include "peripheral_irqs.h"        /* IRQ numbers for this platform. */
 #include "log_macros.h"             /* Logging functions */
 
 #include "ethosu_mem_config.h"      /* Arm Ethos-U memory config */
@@ -62,7 +60,7 @@
  **/
 static void arm_ethosu_npu_irq_init(void)
 {
-    const IRQn_Type ethosu_irqnum = (IRQn_Type)EthosU_IRQn;
+    const IRQn_Type ethosu_irqnum = (IRQn_Type)ETHOS_U_IRQN;
 
     /* Register the EthosU IRQ handler in our vector table.
      * Note, this handler comes from the EthosU driver */
@@ -83,15 +81,15 @@
     arm_ethosu_npu_irq_init();
 
     /* Initialise Ethos-U device */
-    const void *ethosu_base_address = (void *)(SEC_ETHOS_U_NPU_BASE);
+    const void *ethosu_base_address = (void *)(ETHOS_U_BASE_ADDR);
 
     if (0 != (err = ethosu_init(
                   &ethosu_drv,            /* Ethos-U driver device pointer */
                   ethosu_base_address,    /* Ethos-U NPU's base address. */
                   get_cache_arena(),      /* Pointer to fast mem area - NULL for U55. */
                   get_cache_arena_size(), /* Fast mem region size. */
-                  1,                      /* Security enable. */
-                  1)))                    /* Privilege enable. */
+                  ETHOS_U_SEC_ENABLED,    /* Security enable. */
+                  ETHOS_U_PRIV_ENABLED))) /* Privilege enable. */
     {
         printf_err("failed to initialise Ethos-U device\n");
         return err;