From 417a4d5c750001025c9a3b43e873de50386dd2e4 Mon Sep 17 00:00:00 2001
From: Rodrigo Arias Mallo <rodrigo.arias@bsc.es>
Date: Fri, 23 Aug 2024 16:46:40 +0200
Subject: [PATCH] Set the _hang trap in mtvec

---
 bootrom/rbootrom.S | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/bootrom/rbootrom.S b/bootrom/rbootrom.S
index 45c08fd..04454d8 100644
--- a/bootrom/rbootrom.S
+++ b/bootrom/rbootrom.S
@@ -22,6 +22,10 @@
 .globl _start
 _start:
 	jal print_hello		// Print initial message on HART 0 only
+
+	la t0, _hang
+	csrw mtvec, t0		// Set the machine trap vector
+
 	csrr a0, mhartid	// Load HART ID into a0
 	li s0, DRAM_BASE	// Load next address into s0
 	jr s0			// Jump to s0