From 4b0ed0b29ab967eef555c4189c9061936927ab17 Mon Sep 17 00:00:00 2001
From: hathach <thach@tinyusb.org>
Date: Fri, 10 Apr 2026 17:46:41 +0700
Subject: fix nrf54 and freertos port

---
 hw/bsp/nrf/FreeRTOSConfig/FreeRTOSConfig.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hw/bsp/nrf/FreeRTOSConfig/FreeRTOSConfig.h b/hw/bsp/nrf/FreeRTOSConfig/FreeRTOSConfig.h
index 0ddd536fb..b6395306f 100644
--- a/hw/bsp/nrf/FreeRTOSConfig/FreeRTOSConfig.h
+++ b/hw/bsp/nrf/FreeRTOSConfig/FreeRTOSConfig.h
@@ -53,6 +53,12 @@
 #define configENABLE_TRUSTZONE                  0
 #define configMINIMAL_SECURE_STACK_SIZE         (1024)
 
+/* nRF54 runs entirely in Secure mode (SAU present but no SPE bootloader).
+ * Tell FreeRTOS CM33 NTZ port to use Secure-compatible EXC_RETURN values. */
+#if defined(NRF54H20_XXAA) || defined(NRF54LM20A_ENGA_XXAA)
+#define configRUN_FREERTOS_SECURE_ONLY          1
+#endif
+
 #define configUSE_PREEMPTION                    1
 #define configUSE_PORT_OPTIMISED_TASK_SELECTION 0
 #define configCPU_CLOCK_HZ                      SystemCoreClock
-- 
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