google/cave: Add as a variant of glados

Add google/cave (Asus Chromebook Flip C302SA) as a variant of
glados Skylake reference board:
- add cave-specific DPTF, EC config, GPIO config, Kconfig,
    NHLT config, PEI data, VBT, SPD data, and devicetree

Adapted from Chromium branch firmware-glados-7820.B, commit
b0c3efe54d877246d07f2467b2dff51cc30348fa [soc/intel/skylake: Enable VMX]

Test: build/boot google/cave, verify correct functionality

Change-Id: I5c5181ce68f7a24ccd49f53ecd9d48c081fd085a
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/27420
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

1 files changed, 43 insertions, 0 deletions

diff --git a/src/mainboard/google/glados/variants/cave/Makefile.inc b/src/mainboard/google/glados/variants/cave/Makefile.inc
new file mode 100644
index 0000000000..f3b52c2398
--- /dev/null
+++ b/src/mainboard/google/glados/variants/cave/Makefile.inc
@@ -0,0 +1,43 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2016 Google Inc.
+## Copyright (C) 2016 Intel Corporation
+##
+## 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.
+##
+
+romstage-y += variant.c
+ramstage-y += variant.c
+smm-y += variant.c
+
+SPD_BIN = $(obj)/spd.bin
+
+# SPD data by index.  No method for board identification yet
+SPD_SOURCES = micron_4GiB_dimm_MT52L256M32D1PF  # 0b0000
+SPD_SOURCES += samsung_dimm_K4E8E324EB-EGCF     # 0b0001
+SPD_SOURCES += micron_8GiB_dimm_MT52L512M32D2PF # 0b0010
+SPD_SOURCES += samsung_dimm_K4E6E304EB-EGCF     # 0b0011
+SPD_SOURCES += micron_16GiB_dimm_MT52L1G32D4PG  # 0b0100
+SPD_SOURCES += hynix_dimm_H9CCNNNCLTMLAR        # 0b0101
+
+SPD_DEPS := $(foreach f, $(SPD_SOURCES), src/mainboard/$(MAINBOARDDIR)/spd/$(f).spd.hex)
+
+# Include spd ROM data
+$(SPD_BIN): $(SPD_DEPS)
+	for f in $+; \
+	  do for c in $$(cat $$f | grep -v ^#); \
+	    do printf $$(printf '\%o' 0x$$c); \
+	  done; \
+	done > $@
+
+cbfs-files-y += spd.bin
+spd.bin-file := $(SPD_BIN)
+spd.bin-type := spd