From a25e61ecd364eae32e45d0903f241bfd62b82782 Mon Sep 17 00:00:00 2001
From: Salvador Arroyo <sarroyofdez@yahoo.es>
Date: Wed, 22 Aug 2012 20:34:02 +0200
Subject: [PATCH] Patch: Make pic32mx unlock work at higher scan frequencies

For example in a pic32mx220, pic32mx unlock don't work
if adapter_khz is set to 5000 or more.

A short delay after asserting reset fix the problem.

Change-Id: I62e493edfcea585c36c8de77a969cebac7227b96
Signed-off-by: Salvador Arroyo <sarroyofdez@yahoo.es>
Reviewed-on: http://openocd.zylin.com/790
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
---
 src/flash/nor/pic32mx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/flash/nor/pic32mx.c b/src/flash/nor/pic32mx.c
index 788a3b919..b718c98ff 100644
--- a/src/flash/nor/pic32mx.c
+++ b/src/flash/nor/pic32mx.c
@@ -28,6 +28,7 @@
 #include "config.h"
 #endif
 
+#include <jtag/jtag.h>
 #include "imp.h"
 #include <target/algorithm.h>
 #include <target/mips32.h>
@@ -828,6 +829,7 @@ COMMAND_HANDLER(pic32mx_handle_unlock_command)
 
 	/* unlock/erase device */
 	mips_ejtag_drscan_8_out(ejtag_info, MCHP_ASERT_RST);
+	jtag_add_sleep(200);
 
 	mips_ejtag_drscan_8_out(ejtag_info, MCHP_ERASE);