Add/Combine Broadwell Chromebooks using variant board scheme

Combine existing boards google/auron_paine and google/samus with new
ChromeOS devices auron_yuna, gandof and lulu, using their common
reference board (auron) as a base.

Chromium sources used:
firmware-yuna-6301.59.B 6ed8b9d [CHERRY-PICK: broadwell: Update to...]
firmware-gandof-6301.155.B 666f34f [gandof: modify power limiting for...]
firmware-lulu-6301.136.B 8811714 [lulu: update RAMID table]

Additionally, some minor cleanup/changes were made:
 - I2C devices set to use level (vs edge) interrupt triggering
 - HDA verb entries use simplified macro entry format
 - correct FADT table header version
 - remove unused ACPI device entries / .asl file(s)
 - clean up ACPI code (e.g., trackpad on Lulu)
 - adjust _CID for trackpad on Lulu in order to not load non-functional
    Windows driver (does not affect Linux)
 - remove unused header includes (multiple/various)
 - correct I2C addresses used for SMBIOS device entries
 - correct misc typos etc

The existing auron_paine samus boards are removed.

Variant setup modeled after google/slippy

Change-Id: I53436878d141715eb18b8ea5043d71e6e8728fe8
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/17917
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

10 files changed, 387 insertions, 0 deletions

diff --git a/src/mainboard/google/auron/variants/lulu/spd/Makefile.inc b/src/mainboard/google/auron/variants/lulu/spd/Makefile.inc
new file mode 100644
index 0000000000..bc1454f202
--- /dev/null
+++ b/src/mainboard/google/auron/variants/lulu/spd/Makefile.inc
@@ -0,0 +1,51 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2014 Google Inc.
+## Copyright (C) 2015 Sage Electronic Engineering
+##
+## 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 += spd.c
+
+SPD_BIN = $(obj)/spd.bin
+
+# { GPIO47, GPIO9, GPIO13, GPIO8}
+SPD_SOURCES  = micron_2GiB_dimm_MT41K256M16HA-125	# 0b0000 2GB
+SPD_SOURCES += empty					# 0b0001
+SPD_SOURCES += empty					# 0b0010
+SPD_SOURCES += samsung_2GiB_dimm_K4B4G1646Q-HYK0	# 0b0011 2GB
+SPD_SOURCES += samsung_2GiB_dimm_K4B4G1646E-BYK0	# 0b0100 2GB
+SPD_SOURCES += samsung_2GiB_dimm_K4B4G1646E-BYK0	# 0b0101 4GB
+SPD_SOURCES += empty					# 0b0110
+SPD_SOURCES += empty					# 0b0111
+SPD_SOURCES += micron_2GiB_dimm_MT41K256M16HA-125	# 0b1000 4GB
+SPD_SOURCES += micron_4GiB_dimm_MT41K512M16TNA-125	# 0b1001 8GB
+SPD_SOURCES += hynix_2GiB_dimm_H5TC4G63AFR-PBA		# 0b1010 2GB
+SPD_SOURCES += hynix_2GiB_dimm_H5TC4G63AFR-PBA		# 0b1011 4GB
+SPD_SOURCES += hynix_4GiB_dimm_H5TC8G63CMR-PBA		# 0b1100 8GB
+SPD_SOURCES += samsung_2GiB_dimm_K4B4G1646Q-HYK0	# 0b1101 4GB
+SPD_SOURCES += samsung_4GiB_dimm_K4B8G1646Q-MYK0	# 0b1110 8GB
+SPD_SOURCES += empty					# 0b1111
+
+SPD_DEPS := $(foreach f, $(SPD_SOURCES), src/mainboard/$(MAINBOARDDIR)/variants/$(VARIANT_DIR)/spd/$(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
diff --git a/src/mainboard/google/auron/variants/lulu/spd/empty.spd.hex b/src/mainboard/google/auron/variants/lulu/spd/empty.spd.hex
new file mode 100644
index 0000000000..e83f7e83f7
--- /dev/null
+++ b/src/mainboard/google/auron/variants/lulu/spd/empty.spd.hex
@@ -0,0 +1,16 @@
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
\ No newline at end of file
diff --git a/src/mainboard/google/auron/variants/lulu/spd/hynix_2GiB_dimm_H5TC4G63AFR-PBA.spd.hex b/src/mainboard/google/auron/variants/lulu/spd/hynix_2GiB_dimm_H5TC4G63AFR-PBA.spd.hex
new file mode 100644
index 0000000000..ebb10f353f
--- /dev/null
+++ b/src/mainboard/google/auron/variants/lulu/spd/hynix_2GiB_dimm_H5TC4G63AFR-PBA.spd.hex
@@ -0,0 +1,32 @@
+92 12 0b 03 04 19 02 02
+03 52 01 08 0a 00 fe 00
+69 78 69 3c 69 11 18 81
+20 08 3c 3c 01 40 83 01
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 0f 11 62 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 80 ad 01
+00 00 00 00 00 00 ff ab
+48 4d 54 34 32 35 53 36
+41 46 52 36 41 2d 50 42
+20 20 4e 30 80 ad 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
\ No newline at end of file
diff --git a/src/mainboard/google/auron/variants/lulu/spd/hynix_4GiB_dimm_H5TC8G63CMR-PBA.spd.hex b/src/mainboard/google/auron/variants/lulu/spd/hynix_4GiB_dimm_H5TC8G63CMR-PBA.spd.hex
new file mode 100644
index 0000000000..3239846324
--- /dev/null
+++ b/src/mainboard/google/auron/variants/lulu/spd/hynix_4GiB_dimm_H5TC8G63CMR-PBA.spd.hex
@@ -0,0 +1,33 @@
+# H5TC8G63CMR-PBA
+92 13 0b 03 04 19 02 0a
+03 52 01 08 0a 00 fe 00
+69 78 69 3c 69 11 18 81
+20 08 3c 3c 01 40 83 01
+00 80 00 00 00 00 00 00
+00 88 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 0f 11 1f 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 80 ad 01
+00 00 00 00 00 00 b2 a3
+48 4d 54 38 35 31 53 36
+43 4d 52 36 41 2d 50 42
+20 20 4e 30 80 ad 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
\ No newline at end of file
diff --git a/src/mainboard/google/auron/variants/lulu/spd/micron_2GiB_dimm_MT41K256M16HA-125.spd.hex b/src/mainboard/google/auron/variants/lulu/spd/micron_2GiB_dimm_MT41K256M16HA-125.spd.hex
new file mode 100644
index 0000000000..91d816d4ea
--- /dev/null
+++ b/src/mainboard/google/auron/variants/lulu/spd/micron_2GiB_dimm_MT41K256M16HA-125.spd.hex
@@ -0,0 +1,32 @@
+92 11 0b 03 04 19 02 02
+03 11 01 08 0a 00 fe 00
+69 78 69 3c 69 11 18 86
+20 08 3c 3c 01 40 83 05
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 0f 01 02 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 80 2c 00
+00 00 00 00 00 00 19 d2
+34 4b 54 46 32 35 36 36
+34 48 5a 2d 31 47 36 45
+31 20 45 31 80 2c 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
\ No newline at end of file
diff --git a/src/mainboard/google/auron/variants/lulu/spd/micron_4GiB_dimm_MT41K512M16TNA-125.spd.hex b/src/mainboard/google/auron/variants/lulu/spd/micron_4GiB_dimm_MT41K512M16TNA-125.spd.hex
new file mode 100644
index 0000000000..0a27768a36
--- /dev/null
+++ b/src/mainboard/google/auron/variants/lulu/spd/micron_4GiB_dimm_MT41K512M16TNA-125.spd.hex
@@ -0,0 +1,33 @@
+# MT41K512M16TNA-125:E
+92 11 0b 03 04 19 02 0A
+03 11 01 08 0a 00 fe 00
+69 78 69 3c 69 11 18 81
+20 08 3c 3c 01 40 83 05
+00 80 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 0f 11 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 80 2c 00
+00 00 00 00 00 00 7f c1
+38 4b 54 53 35 31 32 36
+34 48 44 5a 2d 31 47 36
+45 31 45 31 80 2c 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
+ff ff ff ff ff ff ff ff
\ No newline at end of file
diff --git a/src/mainboard/google/auron/variants/lulu/spd/samsung_2GiB_dimm_K4B4G1646E-BYK0.spd.hex b/src/mainboard/google/auron/variants/lulu/spd/samsung_2GiB_dimm_K4B4G1646E-BYK0.spd.hex
new file mode 100644
index 0000000000..5937a888ea
--- /dev/null
+++ b/src/mainboard/google/auron/variants/lulu/spd/samsung_2GiB_dimm_K4B4G1646E-BYK0.spd.hex
@@ -0,0 +1,17 @@
+# Samsung K4B4G1646E-BYK0
+92 13 0B 03 04 19 02 02 03 11 01 08 0A 00 FE 00
+69 78 69 3C 69 11 18 81 20 08 3C 3C 01 40 83 01
+00 00 00 00 00 00 00 00 00 88 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 0F 01 62 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 80 CE 01 00 00 00 00 00 00 CA 0F
+4D 34 37 31 42 35 36 37 34 45 42 30 2D 59 4B 30
+20 20 00 00 80 CE 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
\ No newline at end of file
diff --git a/src/mainboard/google/auron/variants/lulu/spd/samsung_2GiB_dimm_K4B4G1646Q-HYK0.spd.hex b/src/mainboard/google/auron/variants/lulu/spd/samsung_2GiB_dimm_K4B4G1646Q-HYK0.spd.hex
new file mode 100644
index 0000000000..d6b0770334
--- /dev/null
+++ b/src/mainboard/google/auron/variants/lulu/spd/samsung_2GiB_dimm_K4B4G1646Q-HYK0.spd.hex
@@ -0,0 +1,17 @@
+# Samsung K4B4G1646Q-HYK0
+92 12 0B 03 04 19 02 02 03 11 01 08 0A 00 FE 00
+69 78 69 3C 69 11 18 81 20 08 3C 3C 01 40 83 05
+00 00 00 00 00 00 00 00 88 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 0F 01 02 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 80 CE 01 00 00 00 00 00 00 6C F9
+4D 34 37 31 42 35 36 37 34 51 48 30 2D 59 4B 30
+20 20 00 00 80 CE 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
\ No newline at end of file
diff --git a/src/mainboard/google/auron/variants/lulu/spd/samsung_4GiB_dimm_K4B8G1646Q-MYK0.spd.hex b/src/mainboard/google/auron/variants/lulu/spd/samsung_4GiB_dimm_K4B8G1646Q-MYK0.spd.hex
new file mode 100644
index 0000000000..4e7d8e41d8
--- /dev/null
+++ b/src/mainboard/google/auron/variants/lulu/spd/samsung_4GiB_dimm_K4B8G1646Q-MYK0.spd.hex
@@ -0,0 +1,17 @@
+# Samsung K4B8G1646Q-MYK0
+92 12 0B 03 04 19 02 0A 03 11 01 08 0A 00 FE 00
+69 78 69 3C 69 11 18 81 20 08 3C 3C 01 40 83 01
+00 80 00 00 00 00 00 00 00 88 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 0F 11 1F 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 80 CE 01 00 00 00 00 00 00 00 00
+4D 34 37 31 42 35 31 37 34 51 4D 30 2D 59 4B 30
+20 20 00 00 80 CE 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
\ No newline at end of file
diff --git a/src/mainboard/google/auron/variants/lulu/spd/spd.c b/src/mainboard/google/auron/variants/lulu/spd/spd.c
new file mode 100644
index 0000000000..ac99f5c7bc
--- /dev/null
+++ b/src/mainboard/google/auron/variants/lulu/spd/spd.c
@@ -0,0 +1,139 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015 Sage Electronic Engineering
+ *
+ * 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.
+ */
+
+#include <cbfs.h>
+#include <console/console.h>
+#include <endian.h>
+#include <string.h>
+#include <soc/gpio.h>
+#include <soc/pei_data.h>
+#include <soc/romstage.h>
+#include <ec/google/chromeec/ec.h>
+#include <mainboard/google/auron/ec.h>
+#include <variant/gpio.h>
+#include <variant/spd.h>
+
+static void mainboard_print_spd_info(uint8_t spd[])
+{
+	const int spd_banks[8] = {  8, 16, 32, 64, -1, -1, -1, -1 };
+	const int spd_capmb[8] = {  1,  2,  4,  8, 16, 32, 64,  0 };
+	const int spd_rows[8]  = { 12, 13, 14, 15, 16, -1, -1, -1 };
+	const int spd_cols[8]  = {  9, 10, 11, 12, -1, -1, -1, -1 };
+	const int spd_ranks[8] = {  1,  2,  3,  4, -1, -1, -1, -1 };
+	const int spd_devw[8]  = {  4,  8, 16, 32, -1, -1, -1, -1 };
+	const int spd_busw[8]  = {  8, 16, 32, 64, -1, -1, -1, -1 };
+	char spd_name[SPD_PART_LEN+1] = { 0 };
+
+	int banks = spd_banks[(spd[SPD_DENSITY_BANKS] >> 4) & 7];
+	int capmb = spd_capmb[spd[SPD_DENSITY_BANKS] & 7] * 256;
+	int rows  = spd_rows[(spd[SPD_ADDRESSING] >> 3) & 7];
+	int cols  = spd_cols[spd[SPD_ADDRESSING] & 7];
+	int ranks = spd_ranks[(spd[SPD_ORGANIZATION] >> 3) & 7];
+	int devw  = spd_devw[spd[SPD_ORGANIZATION] & 7];
+	int busw  = spd_busw[spd[SPD_BUS_DEV_WIDTH] & 7];
+
+	/* Module type */
+	printk(BIOS_INFO, "SPD: module type is ");
+	switch (spd[SPD_DRAM_TYPE]) {
+	case SPD_DRAM_DDR3:
+		printk(BIOS_INFO, "DDR3\n");
+		break;
+	case SPD_DRAM_LPDDR3:
+		printk(BIOS_INFO, "LPDDR3\n");
+		break;
+	default:
+		printk(BIOS_INFO, "Unknown (%02x)\n", spd[SPD_DRAM_TYPE]);
+		break;
+	}
+
+	/* Module Part Number */
+	memcpy(spd_name, &spd[SPD_PART_OFF], SPD_PART_LEN);
+	spd_name[SPD_PART_LEN] = 0;
+	printk(BIOS_INFO, "SPD: module part is %s\n", spd_name);
+
+	printk(BIOS_INFO, "SPD: banks %d, ranks %d, rows %d, columns %d, "
+	       , banks, ranks, rows, cols);
+	printk(BIOS_INFO, "density %d Mb\n", capmb);
+
+	printk(BIOS_INFO, "SPD: device width %d bits, bus width %d bits\n",
+	       devw, busw);
+
+	if (capmb > 0 && busw > 0 && devw > 0 && ranks > 0) {
+		/* SIZE = DENSITY / 8 * BUS_WIDTH / SDRAM_WIDTH * RANKS */
+		printk(BIOS_INFO, "SPD: module size is %u MB (per channel)\n",
+		       capmb / 8 * busw / devw * ranks);
+	}
+}
+
+/* Copy SPD data for on-board memory */
+void mainboard_fill_spd_data(struct pei_data *pei_data)
+{
+	int spd_bits[4] = {
+		SPD_GPIO_BIT0,
+		SPD_GPIO_BIT1,
+		SPD_GPIO_BIT2,
+		SPD_GPIO_BIT3
+	};
+	int spd_gpio[4];
+	int spd_index;
+	size_t spd_file_len;
+	char *spd_file;
+
+	spd_gpio[0] = get_gpio(SPD_GPIO_BIT0);
+	spd_gpio[1] = get_gpio(SPD_GPIO_BIT1);
+	spd_gpio[2] = get_gpio(SPD_GPIO_BIT2);
+	spd_gpio[3] = get_gpio(SPD_GPIO_BIT3);
+
+	spd_index = (spd_gpio[3] << 3) | (spd_gpio[2] << 2) |
+		(spd_gpio[1] << 1) | spd_gpio[0];
+
+	printk(BIOS_DEBUG, "SPD: index %d (GPIO%d=%d GPIO%d=%d GPIO%d=%d GPIO%d=%d)\n",
+		spd_index,
+		spd_bits[3], spd_gpio[3],
+		spd_bits[2], spd_gpio[2],
+		spd_bits[1], spd_gpio[1],
+		spd_bits[0], spd_gpio[0]);
+
+	spd_file = cbfs_boot_map_with_leak("spd.bin", 0xab, &spd_file_len);
+	if (!spd_file)
+		die("SPD data not found.");
+
+	if (spd_file_len < ((spd_index + 1) * SPD_LEN)) {
+		printk(BIOS_ERR, "SPD index override to 0 - old hardware?\n");
+		spd_index = 0;
+	}
+
+	if (spd_file_len < SPD_LEN)
+		die("Missing SPD data.");
+
+
+	/* CH0 */
+	memcpy(pei_data->spd_data[0][0],
+		spd_file + (spd_index * SPD_LEN), SPD_LEN);
+
+	/* CH1 not used in 2GB configurations */
+	if (!((spd_index == 0b0000) || (spd_index == 0b0011) ||
+	    (spd_index == 0b1010))) {
+		memcpy(pei_data->spd_data[1][0],
+			spd_file + (spd_index * SPD_LEN), SPD_LEN);
+	}
+
+	/* Make sure a valid SPD was found */
+	if (pei_data->spd_data[0][0][0] == 0)
+		die("Invalid SPD data.");
+
+	mainboard_print_spd_info(pei_data->spd_data[0][0]);
+}