From 9e6c1beadcc76f12da7ef8d5736981d7fc542a0c Mon Sep 17 00:00:00 2001
From: David Garske <david@wolfssl.com>
Date: Mon, 9 Sep 2024 11:53:03 -0700
Subject: [PATCH] TrustZone (disable for now). Issue with startup call with
 TZEN=1. The registers are still running from secure base.

---
 config/examples/nrf5340.config | 2 +-
 hal/nrf5340.h                  | 4 ++++
 hal/nrf5340.ld                 | 2 +-
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/config/examples/nrf5340.config b/config/examples/nrf5340.config
index 03402274b..fda5763bf 100644
--- a/config/examples/nrf5340.config
+++ b/config/examples/nrf5340.config
@@ -1,5 +1,5 @@
 ARCH?=ARM
-TZEN?=1
+TZEN?=0
 TARGET?=nrf5340
 SIGN?=ECC256
 HASH?=SHA256
diff --git a/hal/nrf5340.h b/hal/nrf5340.h
index 30ef8ad92..49e6a86c5 100644
--- a/hal/nrf5340.h
+++ b/hal/nrf5340.h
@@ -22,6 +22,10 @@
 #ifndef _HAL_NRF5340_H_
 #define _HAL_NRF5340_H_
 
+#ifndef TZEN
+#define TZEN
+#endif
+
 #define CPU_CLOCK 128000000UL /* 128MHz */
 
 /* Assembly helpers */
diff --git a/hal/nrf5340.ld b/hal/nrf5340.ld
index 5aff266c3..ac56d3a6d 100644
--- a/hal/nrf5340.ld
+++ b/hal/nrf5340.ld
@@ -1,7 +1,7 @@
 MEMORY
 {
     FLASH (rx) : ORIGIN = 0x00000000, LENGTH = @BOOTLOADER_PARTITION_SIZE@
-    RAM (rwx) :  ORIGIN = 0x20000000, LENGTH = 512K
+    RAM (rwx) :  ORIGIN = 0x20000000, LENGTH = 64K
 }
 
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