From f86f891702e77267eeca63e960b210a2ae9db00b Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Tue, 23 Dec 2014 11:48:01 +0000
Subject: [PATCH] git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@7597
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/hal/ports/STM32/LLD/RTCv2/rtc_lld.c | 3 +++
 os/hal/ports/STM32/LLD/RTCv2/rtc_lld.h | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/os/hal/ports/STM32/LLD/RTCv2/rtc_lld.c b/os/hal/ports/STM32/LLD/RTCv2/rtc_lld.c
index 1f02ef413..d862dfff5 100644
--- a/os/hal/ports/STM32/LLD/RTCv2/rtc_lld.c
+++ b/os/hal/ports/STM32/LLD/RTCv2/rtc_lld.c
@@ -197,6 +197,8 @@ static uint32_t rtc_encode_date(const RTCDateTime *timespec) {
   return dr;
 }
 
+#if RTC_HAS_STORAGE
+/* TODO: Map on the backup SRAM on devices that have it.*/
 static size_t _write(void *instance, const uint8_t *bp, size_t n) {
 
   (void)instance;
@@ -274,6 +276,7 @@ struct RTCDriverVMT _rtc_lld_vmt = {
   _write, _read, _put, _get,
   _close, _geterror, _getsize, _getposition, _lseek
 };
+#endif /* RTC_HAS_STORAGE */
 
 /*===========================================================================*/
 /* Driver interrupt handlers.                                                */
diff --git a/os/hal/ports/STM32/LLD/RTCv2/rtc_lld.h b/os/hal/ports/STM32/LLD/RTCv2/rtc_lld.h
index 6d86f68a5..94bc06759 100644
--- a/os/hal/ports/STM32/LLD/RTCv2/rtc_lld.h
+++ b/os/hal/ports/STM32/LLD/RTCv2/rtc_lld.h
@@ -51,7 +51,7 @@
 /**
  * @brief   Presence of a local persistent storage.
  */
-#define RTC_HAS_STORAGE             TRUE
+#define RTC_HAS_STORAGE             FALSE
 /** @} */
 
 /**