purin: add purin under mainboard

this change covers bootblock and romstage.

BUG=none
BRANCH=tot
TEST=ran emerge-purin coreboot

Change-Id: Ifffb2e93189e8e85338de469432f3296e3e71791
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: cd479583404958f72461e9c1639f0288a00f228e
Original-Change-Id: Iaee4a8c457e42386a4100a8121144b8cf5f21e8c
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/242853
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9751
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/mainboard/google/purin/Kconfig

@@ -0,0 +1,58 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright 2015 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
+##
+
+if BOARD_GOOGLE_PURIN
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+	select BOARD_ID_SUPPORT
+	select BOARD_ROMSIZE_KB_2048
+	select CHROMEOS_VBNV_FLASH
+	select COMMON_CBFS_SPI_WRAPPER
+	select HAVE_HARD_RESET
+	select MAINBOARD_HAS_BOOTBLOCK_INIT
+	select SOC_BROADCOM_CYGNUS
+	select SPI_FLASH
+	select SPI_FLASH_SPANSION
+
+config MAINBOARD_DIR
+	string
+	default google/purin
+
+config MAINBOARD_PART_NUMBER
+	string
+	default "Purin"
+
+config MAINBOARD_VENDOR
+	string
+	default "Google"
+
+config VBOOT_RAMSTAGE_INDEX
+	hex
+	default 0x3
+
+config BOOT_MEDIA_SPI_BUS
+	int
+	default 2
+
+config DRAM_SIZE_MB
+	int
+	default 1024
+
+endif #  BOARD_GOOGLE_PURIN