nyan: Add a mainboard specific bootblock.

We need somewhere to put mainboard specific bootblock initialization.

BUG=None
TEST=Built and booted into the bootblock on nyan.
BRANCH=None

Change-Id: Ief409baff5ae67871879291c7ff0533f19ea6e56
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://chromium-review.googlesource.com/172582
Reviewed-by: Ronald Minnich <rminnich@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>

src/mainboard/google/nyan/Kconfig

@@ -23,6 +23,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	def_bool y
 	select ARCH_ARM
 	select SOC_NVIDIA_TEGRA124
+	select MAINBOARD_HAS_BOOTBLOCK_INIT
 
 config MAINBOARD_DIR
 	string

src/mainboard/google/nyan/Makefile.inc

@@ -27,6 +27,8 @@ $(obj)/generated/bct.cfg:
 
 subdirs-y += bct
 
+bootblock-y += bootblock.c
+
 romstage-y += romstage.c
 
 ramstage-y += mainboard.c

src/mainboard/google/nyan/bootblock.c

@@ -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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <bootblock_common.h>
+
+void bootblock_mainboard_init(void)
+{
+}