From 4fa7d3a52dda9c784b97fae015b2b73af10af986 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hubert=20Mi=C5=9B?= <hubert.mis@nordicsemi.no>
Date: Tue, 11 Jul 2017 19:51:08 +0200
Subject: [PATCH] [nRF52840] enable I-code cache in nRF52840 by default (#1977)

---
 examples/platforms/nrf52840/platform.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/examples/platforms/nrf52840/platform.c b/examples/platforms/nrf52840/platform.c
index 0f5ba4179..f0146a0dd 100644
--- a/examples/platforms/nrf52840/platform.c
+++ b/examples/platforms/nrf52840/platform.c
@@ -34,6 +34,7 @@
 
 #include <openthread/platform/logging.h>
 
+#include <device/nrf.h>
 #include <drivers/clock/nrf_drv_clock.h>
 #include "platform-nrf5.h"
 
@@ -46,6 +47,9 @@ void PlatformInit(int argc, char *argv[])
     (void)argc;
     (void)argv;
 
+    // Enable I-code cache
+    NRF_NVMC->ICACHECNF = NVMC_ICACHECNF_CACHEEN_Enabled;
+
     nrf_drv_clock_init();
 
 #if (OPENTHREAD_CONFIG_ENABLE_DEFAULT_LOG_OUTPUT == 0)