google/jecht: add new mainboard

Taken from CrOS, including everything up to commit da4c33913.
Adapted to upstream.

Change-Id: I095e6726a220200ba17719fc05fcdc521da484e8
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10432
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

3 files changed, 87 insertions, 0 deletions

diff --git a/src/mainboard/google/jecht/spd/Makefile.inc b/src/mainboard/google/jecht/spd/Makefile.inc
new file mode 100644
index 0000000000..6531fca325
--- /dev/null
+++ b/src/mainboard/google/jecht/spd/Makefile.inc
@@ -0,0 +1,20 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2014 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.
+##
+
+romstage-y += spd.c
diff --git a/src/mainboard/google/jecht/spd/spd.c b/src/mainboard/google/jecht/spd/spd.c
new file mode 100644
index 0000000000..37247f5815
--- /dev/null
+++ b/src/mainboard/google/jecht/spd/spd.c
@@ -0,0 +1,41 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 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.
+ */
+
+#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 <mainboard/google/jecht/spd/spd.h>
+
+/* Copy SPD data for on-board memory */
+void mainboard_fill_spd_data(struct pei_data *pei_data)
+{
+	pei_data->spd_addresses[0] = 0xa0;
+	pei_data->spd_addresses[1] = 0x00;
+	pei_data->spd_addresses[2] = 0xa4;
+	pei_data->spd_addresses[3] = 0x00;
+	pei_data->dimm_channel0_disabled = 2;
+	pei_data->dimm_channel1_disabled = 2;
+	// Enable 2x refresh mode
+	pei_data->ddr_refresh_2x = 1;
+	pei_data->dq_pins_interleaved = 1;
+}
diff --git a/src/mainboard/google/jecht/spd/spd.h b/src/mainboard/google/jecht/spd/spd.h
new file mode 100644
index 0000000000..ffdd5d80ee
--- /dev/null
+++ b/src/mainboard/google/jecht/spd/spd.h
@@ -0,0 +1,26 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 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.
+ */
+
+#ifndef MAINBOARD_SPD_H
+#define MAINBOARD_SPD_H
+
+struct pei_data;
+void mainboard_fill_spd_data(struct pei_data *pei_data);
+
+#endif