opencellular/rotundu: Add mainboard support

Adds Open Cellular rotundu mainboard supports.

Working:
  - 2x Ethernet support
  - MSATA support
  - CPU init
  - Memory init
  - USB support
  - EMMC but disabled

Not working:
  - TPM support

Create directory structure and Kconfig files for OpenCellular
Rotundu and copy sources from intel/minnowmax.

Change-Id: I391d4bdd485f4bf5396c764fe3f11d98369593e4
Signed-off-by: Hong Gan <hgan@fb.com>
Signed-off-by: David Hendricks <dhendricks@fb.com>
Reviewed-on: https://review.coreboot.org/22894
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/src/mainboard/opencellular/rotundu/mainboard.c b/src/mainboard/opencellular/rotundu/mainboard.c
new file mode 100644
index 0000000000..53c98002e9
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/mainboard.c
@@ -0,0 +1,42 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2011 The ChromiumOS Authors.  All rights reserved.
+ * Copyright (C) 2014 Sage Electronic Engineering, LLC
+ * Copyright (C) 2017-present Facebook, 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.
+ */
+
+#include <device/device.h>
+
+/*
+ * mainboard_enable is executed as first thing after enumerate_buses().
+ * This is the earliest point to add customization.
+ */
+static void mainboard_enable(struct device *dev)
+{
+}
+
+/*
+ * mainboard_final is executed as one of the last items before loading the
+ * payload.
+ *
+ * This is the latest point to add customization.
+ */
+static void mainboard_final(void *chip_info)
+{
+}
+
+struct chip_operations mainboard_ops = {
+	.enable_dev = mainboard_enable,
+	.final = mainboard_final,
+};