sb/intel: Deduplicate vbnv_cmos_failed and rtc_init

* Move all implementations to into common folder.
* Add rtc.c for rtc based functions
Allows all Intel based platforms to use VBOOT_VBNV_CMOS.

Change-Id: Ia494e6d418af6f907c648376674776c54d95ba71
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/29427
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/src/southbridge/intel/common/rtc.h b/src/southbridge/intel/common/rtc.h
new file mode 100644
index 0000000000..0d04a51b5e
--- /dev/null
+++ b/src/southbridge/intel/common/rtc.h
@@ -0,0 +1,24 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef SOUTHBRIDGE_INTEL_RTC_H
+#define SOUTHBRIDGE_INTEL_RTC_H
+
+/* Return non-zero when RTC failure happened. */
+int rtc_failure(void);
+void sb_rtc_init(void);
+
+#endif