From f9346e1e2b73701ed2c66871f4065ca5b1bef3ca Mon Sep 17 00:00:00 2001
From: Benjamin Valentin <benpicco@googlemail.com>
Date: Sat, 29 Feb 2020 16:29:58 +0100
Subject: [PATCH] cpu/cc2538: use RTT based RTC implementation

---
 cpu/cc2538/Makefile.dep | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cpu/cc2538/Makefile.dep b/cpu/cc2538/Makefile.dep
index 4f899edb6d..b9e01ef586 100644
--- a/cpu/cc2538/Makefile.dep
+++ b/cpu/cc2538/Makefile.dep
@@ -3,4 +3,8 @@ ifneq (,$(filter cc2538_rf,$(USEMODULE)))
   USEMODULE += netif
 endif
 
+ifneq (,$(filter periph_rtc,$(USEMODULE)))
+  USEMODULE += rtt_rtc
+endif
+
 USEMODULE += pm_layered