diff --git a/platform/ext/target/nordic_nrf/common/core/target_cfg.c b/platform/ext/target/nordic_nrf/common/core/target_cfg.c
index cf0dd2b28..5c40f70f9 100644
--- a/platform/ext/target/nordic_nrf/common/core/target_cfg.c
+++ b/platform/ext/target/nordic_nrf/common/core/target_cfg.c
@@ -317,6 +317,13 @@ struct platform_data_t tfm_peripheral_timer0 = {
 };
 #endif
 
+#if TFM_PERIPHERAL_TIMER00_SECURE
+struct platform_data_t tfm_peripheral_timer00 = {
+    NRF_TIMER00_S_BASE,
+    NRF_TIMER00_S_BASE + (sizeof(NRF_TIMER_Type) - 1),
+};
+#endif
+
 #if TFM_PERIPHERAL_TIMER1_SECURE
 struct platform_data_t tfm_peripheral_timer1 = {
     NRF_TIMER1_S_BASE,
diff --git a/platform/ext/target/nordic_nrf/common/nrf54l15/tfm_peripherals_config_nrf54l15.h b/platform/ext/target/nordic_nrf/common/nrf54l15/tfm_peripherals_config_nrf54l15.h
index c6dec9b93..12f3a003c 100644
--- a/platform/ext/target/nordic_nrf/common/nrf54l15/tfm_peripherals_config_nrf54l15.h
+++ b/platform/ext/target/nordic_nrf/common/nrf54l15/tfm_peripherals_config_nrf54l15.h
@@ -1,4 +1,8 @@
 
+#ifndef TFM_PERIPHERAL_TIMER00_SECURE
+#define TFM_PERIPHERAL_TIMER00_SECURE 0
+#endif
+
 #ifndef TFM_PERIPHERAL_UARTE00_SECURE
 #define TFM_PERIPHERAL_UARTE00_SECURE 0
 #endif
diff --git a/platform/ext/target/nordic_nrf/common/nrf54l15/tfm_peripherals_def.h b/platform/ext/target/nordic_nrf/common/nrf54l15/tfm_peripherals_def.h
index 8eacfe064..e4bf94811 100644
--- a/platform/ext/target/nordic_nrf/common/nrf54l15/tfm_peripherals_def.h
+++ b/platform/ext/target/nordic_nrf/common/nrf54l15/tfm_peripherals_def.h
@@ -18,9 +18,9 @@ extern "C" {
 
 #define TFM_TIMER0_IRQ         (NRFX_IRQ_NUMBER_GET(NRF_TIMER0))
 
-extern struct platform_data_t tfm_peripheral_timer0;
+extern struct platform_data_t tfm_peripheral_timer00;
 
-#define TFM_PERIPHERAL_TIMER0       (&tfm_peripheral_timer0)
+#define TFM_PERIPHERAL_TIMER00       (&tfm_peripheral_timer00)
 
 /*
  * Quantized default IRQ priority, the value is:
diff --git a/platform/ext/target/nordic_nrf/nrf54l15dk_nrf54l15_cpuapp/tfm_peripherals_config.h b/platform/ext/target/nordic_nrf/nrf54l15dk_nrf54l15_cpuapp/tfm_peripherals_config.h
index 1ed07d120..bc3301087 100644
--- a/platform/ext/target/nordic_nrf/nrf54l15dk_nrf54l15_cpuapp/tfm_peripherals_config.h
+++ b/platform/ext/target/nordic_nrf/nrf54l15dk_nrf54l15_cpuapp/tfm_peripherals_config.h
@@ -16,6 +16,10 @@ extern "C" {
 #define TFM_PERIPHERAL_UARTE30_SECURE 1
 #endiff
 
+#if TFM_PARTITION_SLIH_TEST || TFM_PARTITION_FLIH_TEST
+#define TFM_PERIPHERAL_TIMER00_SECURE 1
+#endif
+
 
 #if defined(NRF54L15_ENGA_XXAA)
     #include <tfm_peripherals_config_nrf54l15.h>