From ad4010d4b7147a6607c2fd30c7885ca6b464abbc Mon Sep 17 00:00:00 2001
From: Tim Newsome <tim@sifive.com>
Date: Thu, 29 Sep 2016 11:38:54 -0700
Subject: [PATCH] Clear triggers during entry.

If the last test leaves some triggers set they should be cleaned up.
---
 debug/programs/entry.S | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/debug/programs/entry.S b/debug/programs/entry.S
index 80904cd..6dc694f 100755
--- a/debug/programs/entry.S
+++ b/debug/programs/entry.S
@@ -40,6 +40,15 @@ handle_reset:
   # initialize stack pointer
   la sp, stack_top
 
+  # Clear all hardware triggers
+  li    t0, ~0
+1:
+  addi  t0, t0, 1
+  csrw  CSR_TSELECT, t0
+  csrw  CSR_TDATA1, zero
+  csrr  t1, CSR_TSELECT
+  beq   t0, t1, 1b
+
   # perform the rest of initialization in C
   j _init
 
-- 
2.30.2