From 8ac4838b92fe39266ca432299e22cf6f2efea5bb Mon Sep 17 00:00:00 2001
From: Brett Nicholas <7547222+bigbrett@users.noreply.github.com>
Date: Sun, 29 Mar 2026 20:07:27 -0600
Subject: [PATCH] tc3: disable/capture bus errors for lifetime of bootloader

---
 hal/aurix_tc3xx.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hal/aurix_tc3xx.c b/hal/aurix_tc3xx.c
index 99010f9e..16255607 100644
--- a/hal/aurix_tc3xx.c
+++ b/hal/aurix_tc3xx.c
@@ -308,6 +308,9 @@ void hal_init(void)
                     WOLFBOOT_VERSION);
 #endif
 #endif /* DEBUG_UART */
+
+    /* Catch bus errors due to ECC faults. Reenabled on application boot */
+    TC3_CAPTURE_BUS_ERRORS();
 }
 
 /* This function is called by the bootloader at a very late stage, before
@@ -338,6 +341,9 @@ void hal_prepare_boot(void)
     /* Undo pre-init*/
     tc3tc_UnpreInit();
 #endif
+
+    /* Reenable bus trap/exception masking */
+    TC3_ENFORCE_BUS_ERRORS();
 }
 
 #ifndef WOLFBOOT_AURIX_TC3XX_HSM