From 93f628a4c35f100ebc14b896b99f225dc07a6681 Mon Sep 17 00:00:00 2001
From: Harald Welte <laforge@gnumonks.org>
Date: Sun, 24 Feb 2019 14:32:30 +0100
Subject: PA11: Increase drive strength to 8mA

It has been observed that the 20 MHz clock signal doesn't even remotely
resemble a square shape unless DRVSTR=1 is set using this patch.

Change-Id: I1366e13442eda829756aa4121be81eb15135c73e
---
 sysmoOCTSIM/main.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sysmoOCTSIM/main.c b/sysmoOCTSIM/main.c
index 09d766e..50e82c6 100644
--- a/sysmoOCTSIM/main.c
+++ b/sysmoOCTSIM/main.c
@@ -18,6 +18,7 @@
 
 #include <parts.h>
 #include <hal_cache.h>
+#include <hri_port_e54.h>
 
 #include "atmel_start.h"
 #include "atmel_start_pins.h"
@@ -54,6 +55,10 @@ static void board_init()
 
 	cache_init();
 	cache_enable(CMCC);
+
+	/* increase drive strength of 20Mhz SIM clock output to 8mA
+	 * (there are 8 inputs + traces to drive!) */
+	hri_port_set_PINCFG_DRVSTR_bit(PORT, 0, 11);
 }
 
 int main(void)
-- 
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