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>

19 files changed, 1043 insertions, 0 deletions

diff --git a/src/mainboard/opencellular/rotundu/Kconfig b/src/mainboard/opencellular/rotundu/Kconfig
new file mode 100644
index 0000000000..e118ad5317
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/Kconfig
@@ -0,0 +1,80 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2013-2014 Sage Electronic Engineering, LLC.
+## Copyright (C) 2014 Intel Corporation
+## 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.
+##
+
+if BOARD_OPENCELLULAR_ROTUNDU
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+	select SOC_INTEL_FSP_BAYTRAIL
+	select BOARD_ROMSIZE_KB_16384
+	select HAVE_ACPI_TABLES
+	select HAVE_OPTION_TABLE
+	select ENABLE_BUILTIN_COM1
+	select TSC_MONOTONIC_TIMER
+	select ENABLE_FSP_FAST_BOOT
+	select HAVE_ACPI_RESUME
+	select USE_BLOBS
+	select HAVE_FSP_BIN if FSP_PACKAGE_DEFAULT
+
+config MAINBOARD_DIR
+	string
+	default "opencellular/rotundu"
+
+config MAINBOARD_PART_NUMBER
+	string
+	default "Rotundu"
+
+config MAINBOARD_VENDOR
+	string
+	default "OpenCellular"
+
+config MAX_CPUS
+	int
+	default 16
+
+config CACHE_ROM_SIZE_OVERRIDE
+	hex
+	default 0x800000
+
+config FSP_LOC
+	hex
+	default 0xfffb0000
+
+# FIXME: Slow boot performance when increasing CBFS_SIZE beyond 8MB?
+config CBFS_SIZE
+	hex
+	default 0x00200000 if BOARD_ROMSIZE_KB_8192
+	default 0x00800000
+
+config VIRTUAL_ROM_SIZE
+	hex
+	depends on ENABLE_FSP_FAST_BOOT
+	default 0x800000
+
+config FSP_PACKAGE_DEFAULT
+	bool "Configure defaults for the Intel FSP package"
+	default n
+
+config VGA_BIOS
+	bool
+	default y if FSP_PACKAGE_DEFAULT
+
+config VGA_BIOS_ID
+	string
+	default "8086,0f31"
+
+endif # BOARD_OPENCELLULAR_ROTUNDU
diff --git a/src/mainboard/opencellular/rotundu/Kconfig.name b/src/mainboard/opencellular/rotundu/Kconfig.name
new file mode 100644
index 0000000000..3640ef627d
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/Kconfig.name
@@ -0,0 +1,2 @@
+config BOARD_OPENCELLULAR_ROTUNDU
+	bool "Rotundu"
diff --git a/src/mainboard/opencellular/rotundu/Makefile.inc b/src/mainboard/opencellular/rotundu/Makefile.inc
new file mode 100644
index 0000000000..3074df2138
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/Makefile.inc
@@ -0,0 +1,17 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2013 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.
+##
+
+ramstage-y += gpio.c
+ramstage-y += irqroute.c
diff --git a/src/mainboard/opencellular/rotundu/acpi/ec.asl b/src/mainboard/opencellular/rotundu/acpi/ec.asl
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/acpi/ec.asl
diff --git a/src/mainboard/opencellular/rotundu/acpi/mainboard.asl b/src/mainboard/opencellular/rotundu/acpi/mainboard.asl
new file mode 100644
index 0000000000..b032ee189d
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/acpi/mainboard.asl
@@ -0,0 +1,20 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 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.
+ */
+
+Device (PWRB)
+{
+	Name(_HID, EisaId("PNP0C0C"))
+}
diff --git a/src/mainboard/opencellular/rotundu/acpi/superio.asl b/src/mainboard/opencellular/rotundu/acpi/superio.asl
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/acpi/superio.asl
diff --git a/src/mainboard/opencellular/rotundu/acpi_tables.c b/src/mainboard/opencellular/rotundu/acpi_tables.c
new file mode 100644
index 0000000000..eeb961832e
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/acpi_tables.c
@@ -0,0 +1,57 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Google Inc.
+ * Copyright (C) 2013-2014 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 <arch/acpi.h>
+#include <arch/ioapic.h>
+#include <arch/acpigen.h>
+#include <arch/smp/mpspec.h>
+#include <soc/acpi.h>
+#include <soc/nvs.h>
+#include <soc/iomap.h>
+
+void acpi_create_gnvs(global_nvs_t *gnvs)
+{
+	acpi_init_gnvs(gnvs);
+
+	/* Enable USB ports in S3 */
+	gnvs->s3u0 = 1;
+	gnvs->s3u1 = 1;
+
+	/* Disable USB ports in S5 */
+	gnvs->s5u0 = 0;
+	gnvs->s5u1 = 0;
+
+	/* TPM Present */
+	gnvs->tpmp = 0;
+
+	/* Enable DPTF */
+	gnvs->dpte = 0;
+}
+
+unsigned long acpi_fill_madt(unsigned long current)
+{
+	/* Local APICs */
+	current = acpi_create_madt_lapics(current);
+
+	/* IOAPIC */
+	current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
+				2, IO_APIC_ADDR, 0);
+
+	current = acpi_madt_irq_overrides(current);
+
+	return current;
+}
diff --git a/src/mainboard/opencellular/rotundu/board_info.txt b/src/mainboard/opencellular/rotundu/board_info.txt
new file mode 100644
index 0000000000..115b8be273
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/board_info.txt
@@ -0,0 +1,4 @@
+Board name: Rotundu
+Category: sbc
+ROM protocol: SPI
+ROM socketed: n
diff --git a/src/mainboard/opencellular/rotundu/chromeos.fmd b/src/mainboard/opencellular/rotundu/chromeos.fmd
new file mode 100644
index 0000000000..913bf97291
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/chromeos.fmd
@@ -0,0 +1,37 @@
+FLASH@0xff800000 0x800000 {
+	SI_ALL@0x0 0x300000 {
+		SI_DESC@0x0 0x1000
+		SI_ME@0x1000 0x2ff000
+	}
+	SI_BIOS@0x300000 0x500000 {
+		RW_SECTION_A@0x0 0xf0000 {
+			VBLOCK_A@0x0 0x10000
+			FW_MAIN_A(CBFS)@0x10000 0xc0000
+			RW_FWID_A@0xeffc0 0x40
+		}
+		RW_SECTION_B@0xf0000 0xf0000 {
+			VBLOCK_B@0x0 0x10000
+			FW_MAIN_B(CBFS)@0x10000 0xc0000
+			RW_FWID_B@0xeffc0 0x40
+		}
+		RW_MRC_CACHE@0x1e0000 0x10000
+		RW_ELOG@0x1f0000 0x4000
+		RW_SHARED@0x1f4000 0x4000 {
+			SHARED_DATA@0x0 0x2000
+			VBLOCK_DEV@0x2000 0x2000
+		}
+		RW_VPD@0x1f8000 0x2000
+		RW_UNUSED@0x1fa000 0x106000
+		WP_RO@0x300000 0x200000 {
+			RO_VPD@0x0 0x4000
+			RO_UNUSED@0x4000 0xc000
+			RO_SECTION@0x10000 0x1f0000 {
+				FMAP@0x0 0x800
+				RO_FRID@0x800 0x40
+				RO_FRID_PAD@0x840 0x7c0
+				GBB@0x1000 0xef000
+				COREBOOT(CBFS)@0xf0000 0x100000
+			}
+		}
+	}
+}
diff --git a/src/mainboard/opencellular/rotundu/cmos.default b/src/mainboard/opencellular/rotundu/cmos.default
new file mode 100644
index 0000000000..6c96947e2a
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/cmos.default
@@ -0,0 +1 @@
+debug_level=Error
diff --git a/src/mainboard/opencellular/rotundu/cmos.layout b/src/mainboard/opencellular/rotundu/cmos.layout
new file mode 100644
index 0000000000..9ef1102c17
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/cmos.layout
@@ -0,0 +1,97 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2007-2008 coresystems GmbH
+## 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.
+##
+
+# -----------------------------------------------------------------
+entries
+
+# -----------------------------------------------------------------
+# Status Register A
+# -----------------------------------------------------------------
+# Status Register B
+# -----------------------------------------------------------------
+# Status Register C
+#96           4       r       0        status_c_rsvd
+#100          1       r       0        uf_flag
+#101          1       r       0        af_flag
+#102          1       r       0        pf_flag
+#103          1       r       0        irqf_flag
+# -----------------------------------------------------------------
+# Status Register D
+#104          7       r       0        status_d_rsvd
+#111          1       r       0        valid_cmos_ram
+# -----------------------------------------------------------------
+# Diagnostic Status Register
+#112          8       r       0        diag_rsvd1
+
+# -----------------------------------------------------------------
+0          120       r       0        reserved_memory
+#120        264       r       0        unused
+
+# -----------------------------------------------------------------
+# RTC_BOOT_BYTE (coreboot hardcoded)
+384          1       e       4        boot_option
+#390          2       r       0        unused?
+
+# -----------------------------------------------------------------
+# coreboot config options: console
+395          4       e       6        debug_level
+#399          1       r       0        unused
+
+# coreboot config options: cpu
+#401          7       r       0        unused
+
+# coreboot config options: southbridge
+408          1       e       1        nmi
+411          2       e       8        use_xhci_over_ehci
+#413          3       r       0        unused
+
+# MRC Scrambler Seed values
+928         32        r       0        mrc_scrambler_seed_s3
+
+# coreboot config options: check sums
+984         16       h       0        check_sum
+#1000        24       r       0        amd_reserved
+
+# -----------------------------------------------------------------
+
+enumerations
+
+#ID value   text
+1     0     Disable
+1     1     Enable
+2     0     Enable
+2     1     Disable
+4     0     Fallback
+4     1     Normal
+6     1     Emergency
+6     2     Alert
+6     3     Critical
+6     4     Error
+6     5     Warning
+6     6     Notice
+6     7     Info
+6     8     Debug
+6     9     Spew
+7     0     Disable
+7     1     Enable
+7     2     Keep
+8     0     EHCI
+8     1     XHCI
+8     2     Default
+# -----------------------------------------------------------------
+checksums
+
+checksum 392 415 984
diff --git a/src/mainboard/opencellular/rotundu/devicetree.cb b/src/mainboard/opencellular/rotundu/devicetree.cb
new file mode 100644
index 0000000000..a31a001657
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/devicetree.cb
@@ -0,0 +1,81 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2013-2014 Sage Electronic Engineering, LLC.
+## Copyright (C) 2014 Intel Corporation
+## 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.
+##
+
+chip soc/intel/fsp_baytrail
+
+	#### ACPI Register Settings ####
+	register "fadt_pm_profile" = "PM_UNSPECIFIED"
+	register "fadt_boot_arch"  = "ACPI_FADT_LEGACY_FREE"
+
+	#### FSP register settings ####
+	register "PcdSataMode"             = "SATA_MODE_AHCI"
+	register "PcdMrcInitSPDAddr1"      = "0xa0"
+	register "PcdMrcInitSPDAddr2"      = "0xa2"
+	register "PcdMrcInitMmioSize"      = "MMIO_SIZE_DEFAULT"
+	register "PcdeMMCBootMode"         = "EMMC_DISABLED"
+	register "PcdIgdDvmt50PreAlloc"    = "IGD_MEMSIZE_DEFAULT"
+	register "PcdApertureSize"         = "APERTURE_SIZE_DEFAULT"
+	register "PcdGttSize"              = "GTT_SIZE_DEFAULT"
+	register "PcdLpssSioEnablePciMode" = "LPSS_PCI_MODE_DEFAULT"
+	register "AzaliaAutoEnable"     = "AZALIA_FOLLOWS_DEVICETREE"
+	register "LpeAcpiModeEnable"    = "LPE_ACPI_MODE_DISABLED"
+	register "EnableMemoryDown"     = "MEMORY_DOWN_DISABLE"
+	register "DIMM0Enable"          = "DIMM0_ENABLE"
+	register "DIMM1Enable"          = "DIMM1_DISABLE"
+
+	device cpu_cluster 0 on
+		device lapic 0 on end
+	end
+
+	device domain 0 on
+		device pci 00.0 on end	# 8086 0F00 - SoC router
+		device pci 02.0 on end	# 8086 0F31 - GFX
+		device pci 03.0 off end # 8086 0F38 - MIPI - camera interface
+
+		device pci 10.0 off end	# 8086 0F14 - EMMC 4.1 Port (MMC1 pins) - (DO NOT USE) - Only 1 EMMC port at a time
+		device pci 11.0 off end	# 8086 0F15 - SDIO Port (SD2 pins)
+		device pci 12.0 off end	# 8086 0F16 - SD Port (SD3 pins)
+		device pci 13.0 on end	# 8086 0F23 - SATA AHCI (0F20, 0F21, 0F22, 0F23)
+		device pci 14.0 on end	# 8086 0F35 - USB XHCI - Only 1 USB controller at a time
+		device pci 15.0 off end	# 8086 0F28 - LP Engine Audio
+		device pci 16.0 off end # 8086 0F37 - OTG controller
+		device pci 17.0 off end	# 8086 0F50 - EMMC 4.5 Port (MMC1 pins) - Only 1 EMMC port at a time
+		device pci 18.0 on end	# 8086 0F40 - SIO - DMA
+		device pci 18.1 on end	# 8086 0F41 -   I2C Port 1
+		device pci 18.2 off end	# 8086 0F42 -   I2C Port 2
+		device pci 18.3 on end	# 8086 0F43 -   I2C Port 3
+		device pci 18.4 off end	# 8086 0F44 -   I2C Port 4
+		device pci 18.5 off end	# 8086 0F45 -   I2C Port 5
+		device pci 18.6 off end	# 8086 0F46 -   I2C Port 6
+		device pci 18.7 off end	# 8086 0F47 -   I2C Port 7
+		device pci 1a.0 on end	# 8086 0F18 - Trusted Execution Engine
+		device pci 1b.0 off end	# 8086 0F04 - HD Audio
+		device pci 1c.0 on end	# 8086 0F48 - PCIe Root Port 1 (RADIO CARD)
+		device pci 1c.1 on end	# 8086 0F4A - PCIe Root Port 2 (GBE PHY 1)
+		device pci 1c.2 on end	# 8086 0F4C - PCIe Root Port 3 (GBE PHY 2)
+		device pci 1c.3 off end	# 8086 0F4E - PCIe Root Port 4 (NC)
+		device pci 1d.0 off end	# 8086 0F34 - USB EHCI - Only 1 USB controller at a time
+		device pci 1e.0 on end	# 8086 0F06 - SIO - DMA
+		device pci 1e.1 off end	# 8086 0F08 -   PWM 1
+		device pci 1e.2 off end	# 8086 0F09 -   PWM 2
+		device pci 1e.3 on end	# 8086 0F0A -   HSUART 1
+		device pci 1e.4 off end	# 8086 0F0C -   HSUART 2
+		device pci 1e.5 off end	# 8086 0F0E -   SPI
+		device pci 1f.0 on end	# 8086 0F1C - LPC bridge
+		device pci 1f.3 on end	# 8086 0F12 - SMBus 0
+	end
+end
diff --git a/src/mainboard/opencellular/rotundu/dsdt.asl b/src/mainboard/opencellular/rotundu/dsdt.asl
new file mode 100644
index 0000000000..63b9d03dbb
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/dsdt.asl
@@ -0,0 +1,53 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2011 Google Inc.
+ * Copyright (C) 2014 Sage Electronic Engineering, LLC.
+ *
+ * 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.
+ */
+
+#define INCLUDE_LPE  1
+#define INCLUDE_SCC  1
+#define INCLUDE_EHCI 1
+#define INCLUDE_XHCI 1
+#define INCLUDE_LPSS 1
+
+
+DefinitionBlock(
+	"dsdt.aml",
+	"DSDT",
+	0x02,		// DSDT revision: ACPI v2.0
+	"COREv4",	// OEM id
+	"COREBOOT",	// OEM table id
+	0x20110725	// OEM revision
+)
+{
+	// Some generic macros
+	#include <soc/intel/fsp_baytrail/acpi/platform.asl>
+
+	// global NVS and variables
+	#include <soc/intel/fsp_baytrail/acpi/globalnvs.asl>
+
+	#include <soc/intel/fsp_baytrail/acpi/cpu.asl>
+
+	Scope (\_SB) {
+		Device (PCI0)
+		{
+			#include <soc/intel/fsp_baytrail/acpi/southcluster.asl>
+		}
+	}
+
+	/* Chipset specific sleep states */
+	#include <soc/intel/fsp_baytrail/acpi/sleepstates.asl>
+
+	#include "acpi/mainboard.asl"
+}
diff --git a/src/mainboard/opencellular/rotundu/fadt.c b/src/mainboard/opencellular/rotundu/fadt.c
new file mode 100644
index 0000000000..cd8eefdd67
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/fadt.c
@@ -0,0 +1,32 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2013-2014 Sage Electronic Engineering, LLC.
+ *
+ * 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 <arch/acpi.h>
+#include <soc/acpi.h>
+
+void acpi_create_fadt(acpi_fadt_t *fadt, acpi_facs_t *facs, void *dsdt)
+{
+	acpi_header_t *header = &(fadt->header);
+
+	acpi_fill_in_fadt(fadt, facs, dsdt);
+
+	/* Platform specific customizations go here */
+
+	header->checksum = 0;
+	header->checksum =
+		acpi_checksum((void *) fadt, sizeof(acpi_fadt_t));
+
+}
diff --git a/src/mainboard/opencellular/rotundu/gpio.c b/src/mainboard/opencellular/rotundu/gpio.c
new file mode 100644
index 0000000000..a61b7c4993
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/gpio.c
@@ -0,0 +1,362 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google Inc.
+ * 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 <stdlib.h>
+#include <soc/gpio.h>
+#include "irqroute.h"
+
+/* NCORE GPIOs */
+static const struct soc_gpio_map gpncore_gpio_map[] = {
+
+	GPIO_FUNC2, /* GPIO 0 */
+	GPIO_FUNC2, /* GPIO 1 */
+	GPIO_FUNC2, /* GPIO 2 */
+	GPIO_FUNC2, /* GPIO 3 */
+	GPIO_FUNC2, /* GPIO 4 */
+	GPIO_FUNC2, /* GPIO 5 */
+	GPIO_FUNC2, /* GPIO 6 */
+	GPIO_FUNC2, /* GPIO 7 */
+	GPIO_FUNC2, /* GPIO 8 */
+	GPIO_FUNC2, /* GPIO 9 */
+	GPIO_FUNC2, /* GPIO 10 */
+	GPIO_FUNC2, /* GPIO 11 */
+	GPIO_FUNC2, /* GPIO 12 */
+	GPIO_FUNC2, /* GPIO 13 */
+	GPIO_FUNC2, /* GPIO 14 */
+	GPIO_FUNC2, /* GPIO 15 */
+	GPIO_FUNC2, /* GPIO 16 */
+	GPIO_FUNC2, /* GPIO 17 */
+	GPIO_FUNC2, /* GPIO 18 */
+	GPIO_FUNC2, /* GPIO 19 */
+	GPIO_FUNC2, /* GPIO 20 */
+	GPIO_FUNC2, /* GPIO 21 */
+	GPIO_FUNC2, /* GPIO 22 */
+	GPIO_FUNC2, /* GPIO 23 */
+	GPIO_FUNC2, /* GPIO 24 */
+	GPIO_FUNC2, /* GPIO 25 */
+	GPIO_FUNC2, /* GPIO 26 */
+	GPIO_END};
+
+/* SCORE GPIOs (GPIO_S0_SC_XX) */
+static const struct soc_gpio_map gpscore_gpio_map[] = {
+	GPIO_NC,
+	/* GPIO_S0_SC[000] SATA_GP[0] */
+	GPIO_NC,
+	/* GPIO_S0_SC[001] SATA_GP[1] SATA_DEVSLP[0]*/
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[002] SATA_LED# */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[003] PCIE_CLKREQ[0]# */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[004] PCIE_CLKREQ[1]# */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[005] PCIE_CLKREQ[2]# */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[006] PCIE_CLKREQ[3]# */
+	GPIO_FUNC2,
+	/* GPIO_S0_SC[007] RESERVED SD3_WP */
+	GPIO_NC,
+	/* GPIO_S0_SC[008] I2S0_CLK HDA_RST#*/
+	GPIO_NC,
+	/* GPIO_S0_SC[009] I2S0_FRM HDA_SYNC*/
+	GPIO_NC,
+	/* GPIO_S0_SC[010] I2S0_DATAOUT HDA_CLK */
+	GPIO_NC,
+	/* GPIO_S0_SC[011] I2S0_DATAIN HDA_SDO */
+	GPIO_NC,
+	/* GPIO_S0_SC[012] I2S1_CLK HDA_SDI[0]*/
+	GPIO_NC,
+	/* GPIO_S0_SC[013] I2S1_FRM HDA_SDI[1]*/
+	GPIO_NC,
+	/* GPIO_S0_SC[014] I2S1_DATAOUT RESERVED*/
+	GPIO_DEFAULT,
+	/* GPIO_S0_SC[015] I2S1_DATAIN RESERVED*/
+	GPIO_NC,
+	/* GPIO_S0_SC[016] MMC1_CLK MMC1_45_CLK */
+	GPIO_NC,
+	/* GPIO_S0_SC[017] MMC1_D[0] MMC1_45_D[0] */
+	GPIO_NC,
+	/* GPIO_S0_SC[018] MMC1_D[1] MMC1_45_D[1] */
+	GPIO_NC,
+	/* GPIO_S0_SC[019] MMC1_D[2] MMC1_45_D[2] */
+	GPIO_NC,
+	/* GPIO_S0_SC[020] MMC1_D[3] MMC1_45_D[3] */
+	GPIO_NC,
+	/* GPIO_S0_SC[021] MMC1_D[4] MMC1_45_D[4] */
+	GPIO_NC,
+	/* GPIO_S0_SC[022] MMC1_D[5] MMC1_45_D[5] */
+	GPIO_NC,
+	/* GPIO_S0_SC[023] MMC1_D[6] MMC1_45_D[6] */
+	GPIO_NC,
+	/* GPIO_S0_SC[024] MMC1_D[7] MMC1_45_D[7] */
+	GPIO_NC,
+	/* GPIO_S0_SC[025] MMC1_CMD MMC1_45_CMD */
+	GPIO_NC,
+	/* GPIO_S0_SC[026] MMC1_RST# SATA_DEVSLP[0] MMC1_45_RST# */
+	GPIO_NC,
+	/* GPIO_S0_SC[027] SD2_CLK */
+	GPIO_NC,
+	/* GPIO_S0_SC[028] SD2_D[0] */
+	GPIO_NC,
+	/* GPIO_S0_SC[029] SD2_D[1] */
+	GPIO_NC,
+	/* GPIO_S0_SC[030] SD2_D[2] */
+	GPIO_NC,
+	/* GPIO_S0_SC[031] SD2_D[3]_CD# */
+	GPIO_NC,
+	/* GPIO_S0_SC[032] SD2_CMD */
+	GPIO_NC,
+	/* GPIO_S0_SC[033] SD3_CLK */
+	GPIO_NC,
+	/* GPIO_S0_SC[034] SD3_D[0] */
+	GPIO_NC,
+	/* GPIO_S0_SC[035] SD3_D[1] */
+	GPIO_NC,
+	/* GPIO_S0_SC[036] SD3_D[2] */
+	GPIO_NC,
+	/* GPIO_S0_SC[037] SD3_D[3] */
+	GPIO_NC,
+	/* GPIO_S0_SC[038] SD3_CD# */
+	GPIO_NC,
+	/* GPIO_S0_SC[039] SD3_CMD */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[040] SD3_1P8EN */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[041] SD3_PWREN# */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[042] ILB_LPC_AD[0] */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[043] ILB_LPC_AD[1] */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[044] ILB_LPC_AD[2] */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[045] ILB_LPC_AD[3] */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[046] ILB_LPC_FRAME# */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[047] ILB_LPC_CLK[0] */
+	GPIO_NC,
+	/* GPIO_S0_SC[048] ILB_LPC_CLK[1] */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[049] ILB_LPC_CLKRUN# */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[050] ILB_LPC_SERIRQ */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[051] PCU_SMB_DATA */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[052] PCU_SMB_CLK */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[053] PCU_SMB_ALERT# */
+	GPIO_NC,
+	/* GPIO_S0_SC[054] ILB_8254_SPKR RESERVED*/
+	GPIO_DEFAULT,
+	/* GPIO_S0_SC[055] RESERVED */
+	GPIO_DEFAULT,
+	/* GPIO_S0_SC[056] RESERVED */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[057] PCU_UART_TXD */
+	GPIO_DEFAULT,
+	/* GPIO_S0_SC[058] RESERVED */
+	GPIO_DEFAULT,
+	/* GPIO_S0_SC[059] RESERVED */
+	GPIO_DEFAULT,
+	/* GPIO_S0_SC[060] RESERVED */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[061] PCU_UART_RXD */
+	GPIO_NC,
+	/* GPIO_S0_SC[062] LPE_I2S2_CLK SATA_DEVSLP[1] RESERVED */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[063] LPE_I2S2_FRM RESERVED*/
+	GPIO_NC,
+	/* GPIO_S0_SC[064] LPE_I2S2_DATAIN */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[065] LPE_I2S2_DATAOUT*/
+	GPIO_NC,
+	/* GPIO_S0_SC[066] SIO_SPI_CS# */
+	GPIO_NC,
+	/* GPIO_S0_SC[067] SIO_SPI_MISO */
+	GPIO_NC,
+	/* GPIO_S0_SC[068] SIO_SPI_MOSI */
+	GPIO_NC,
+	/* GPIO_S0_SC[069] SIO_SPI_CLK */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[070] SIO_UART1_RXD RESERVED*/
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[071] SIO_UART1_TXD RESERVED*/
+	GPIO_NC,
+	/* GPIO_S0_SC[072] SIO_UART1_RTS# */
+	GPIO_DEFAULT,
+	/* GPIO_S0_SC[073] SIO_UART1_CTS# */
+	GPIO_NC,
+	/* GPIO_S0_SC[074] SIO_UART2_RXD */
+	GPIO_NC,
+	/* GPIO_S0_SC[075] SIO_UART2_TXD */
+	GPIO_NC,
+	/* GPIO_S0_SC[076] SIO_UART2_RTS# */
+	GPIO_NC,
+	/* GPIO_S0_SC[077] SIO_UART2_CTS# */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[078] SIO_I2C0_DATA */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[079] SIO_I2C0_CLK */
+	GPIO_NC,
+	/* GPIO_S0_SC[080] SIO_I2C1_DATA */
+	GPIO_NC,
+	/* GPIO_S0_SC[081] SIO_I2C1_CLK RESERVED*/
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[082] SIO_I2C2_DATA */
+	GPIO_FUNC1,
+	/* GPIO_S0_SC[083] SIO_I2C2_CLK */
+	GPIO_NC,
+	/* GPIO_S0_SC[084] SIO_I2C3_DATA */
+	GPIO_NC,
+	/* GPIO_S0_SC[085] SIO_I2C3_CLK */
+	GPIO_NC,
+	/* GPIO_S0_SC[086] SIO_I2C4_DATA */
+	GPIO_NC,
+	/* GPIO_S0_SC[087] SIO_I2C4_CLK */
+	GPIO_NC,
+	/* GPIO_S0_SC[088] SIO_I2C5_DATA */
+	GPIO_NC,
+	/* GPIO_S0_SC[089] SIO_I2C5_CLK */
+	GPIO_NC,
+	/* GPIO_S0_SC[090] SIO_I2C6_DATA ILB_NMI */
+	GPIO_NC,
+	/* GPIO_S0_SC[091] SIO_I2C6_CLK SD3_WP */
+	GPIO_NC,
+	/* RESERVED  GPIO_S0_SC[092] */
+	GPIO_NC,
+	/* RESERVED  GPIO_S0_SC[093] */
+	GPIO_NC,
+	/* GPIO_S0_SC[094] SIO_PWM[0] */
+	GPIO_NC,
+	/* GPIO_S0_SC[095] SIO_PWM[1] */
+	GPIO_NC,
+	/* GPIO_S0_SC[096] PMC_PLT_CLK[0] */
+	GPIO_NC,
+	/* GPIO_S0_SC[097] PMC_PLT_CLK[1] */
+	GPIO_NC,
+	/* GPIO_S0_SC[098] PMC_PLT_CLK[2] */
+	GPIO_NC,
+	/* GPIO_S0_SC[099] PMC_PLT_CLK[3] */
+	GPIO_NC,
+	/* GPIO_S0_SC[100] PMC_PLT_CLK[4] */
+	GPIO_NC,
+	/* GPIO_S0_SC[101] PMC_PLT_CLK[5]*/
+	GPIO_END};
+
+/* SSUS GPIOs (GPIO_S5) */
+static const struct soc_gpio_map gpssus_gpio_map[] = {
+	GPIO_DEFAULT,
+	/* GPIO_S5[00] RESERVED- */
+	GPIO_NC,
+	/* GPIO_S5[01] RESERVED RESERVED RESERVED PMC_WAKE_PCIE[1]# */
+	GPIO_DEFAULT,
+	/* GPIO_S5[02] RESERVED RESERVED RESERVED PMC_WAKE_PCIE[2]# */
+	GPIO_DEFAULT,
+	/* GPIO_S5[03] RESERVED RESERVED RESERVED PMC_WAKE_PCIE[3]# */
+	GPIO_DEFAULT,
+	/* GPIO_S5[04] RESERVED RESERVED RESERVED RESERVED */
+	GPIO_DEFAULT,
+	/* GPIO_S5[05] PMC_SUSCLK[1] RESERVED RESERVED RESERVED */
+	GPIO_DEFAULT,
+	/* GPIO_S5[06] PMC_SUSCLK[2] RESERVED RESERVED RESERVED */
+	GPIO_DEFAULT,
+	/* GPIO_S5[07] PMC_SUSCLK[3] RESERVED RESERVED RESERVED */
+	GPIO_DEFAULT,
+	/* GPIO_S5[08] RESERVED RESERVED RESERVED RESERVED */
+	GPIO_NC,
+	/* GPIO_S5[09] RESERVED RESERVED RESERVED RESERVED */
+	GPIO_NC,
+	/* GPIO_S5[10] RESERVED RESERVED RESERVED*/
+	GPIO_DEFAULT,
+	/* PMC_SUSPWRDNACK GPIO_S5[11]*/
+	GPIO_NC,
+	/* PMC_SUSCLK[0] GPIO_S5[12]*/
+	GPIO_NC,
+	/* RESERVED GPIO_S5[13]*/
+	GPIO_FUNC2,
+	/* RESERVED GPIO_S5[14] USB_ULPI_RST#*/
+	GPIO_FUNC0,
+	/* PMC_WAKE_PCIE[0]# GPIO_S5[15]*/
+	GPIO_FUNC0,
+	/* PMC_PWRBTN# GPIO_S5[16]*/
+	GPIO_FUNC1,
+	/* RESERVED GPIO_S5[17]*/
+	GPIO_FUNC0,
+	/* PMC_SUS_STAT# GPIO_S5[18]*/
+	GPIO_FUNC0,
+	/* USB_OC[0]# GPIO_S5[19]*/
+	GPIO_FUNC0,
+	/* USB_OC[1]# GPIO_S5[20]*/
+	GPIO_NC,
+	/* PCU_SPI_CS[1]# GPIO_S5[21]*/
+	GPIO_NC,
+	/* GPIO_S5[22] RESERVED RESERVED RESERVED RESERVED */
+	GPIO_NC,
+	/* GPIO_S5[23] RESERVED RESERVED RESERVED RESERVED */
+	GPIO_NC,
+	/* GPIO_S5[24] RESERVED RESERVED RESERVED RESERVED */
+	GPIO_DEFAULT,
+	/* GPIO_S5[25] RESERVED RESERVED RESERVED RESERVED */
+	GPIO_NC,
+	/* GPIO_S5[26] RESERVED RESERVED RESERVED RESERVED */
+	GPIO_NC,
+	/* GPIO_S5[27] RESERVED RESERVED RESERVED RESERVED */
+	GPIO_NC,
+	/* GPIO_S5[28] RESERVED RESERVED RESERVED RESERVED */
+	GPIO_NC,
+	/* GPIO_S5[29] RESERVED RESERVED RESERVED RESERVED */
+	GPIO_NC,
+	/* GPIO_S5[30] RESERVED RESERVED RESERVED RESERVED */
+	GPIO_FUNC1,
+	/* GPIO_S5[31] USB_ULPI_CLK RESERVED RESERVED*/
+	GPIO_NC,
+	/* GPIO_S5[32] USB_ULPI_DATA[0] RESERVED RESERVED*/
+	GPIO_NC,
+	/* GPIO_S5[33] USB_ULPI_DATA[1] RESERVED RESERVED*/
+	GPIO_NC,
+	/* GPIO_S5[34] USB_ULPI_DATA[2] RESERVED RESERVED*/
+	GPIO_NC,
+	/* GPIO_S5[35] USB_ULPI_DATA[3] RESERVED RESERVED*/
+	GPIO_NC,
+	/* GPIO_S5[36] USB_ULPI_DATA[4] RESERVED RESERVED*/
+	GPIO_NC,
+	/* GPIO_S5[37] USB_ULPI_DATA[5] RESERVED RESERVED*/
+	GPIO_NC,
+	/* GPIO_S5[38] USB_ULPI_DATA[6] RESERVED RESERVED*/
+	GPIO_NC,
+	/* GPIO_S5[39] USB_ULPI_DATA[7] RESERVED RESERVED*/
+	GPIO_NC,
+	/* GPIO_S5[40] USB_ULPI_DIR RESERVED RESERVED*/
+	GPIO_NC,
+	/* GPIO_S5[41] USB_ULPI_NXT RESERVED RESERVED*/
+	GPIO_NC,
+	/* GPIO_S5[42] USB_ULPI_STP RESERVED RESERVED*/
+	GPIO_NC,
+	/* GPIO_S5[43] USB_ULPI_REFCLK RESERVED RESERVED*/
+	GPIO_END};
+
+static struct soc_gpio_config gpio_config = {
+	.ncore = gpncore_gpio_map,
+	.score = gpscore_gpio_map,
+	.ssus = gpssus_gpio_map,
+	.core_dirq = NULL,
+	.sus_dirq = NULL,
+};
+
+struct soc_gpio_config *mainboard_get_gpios(void) { return &gpio_config; }
diff --git a/src/mainboard/opencellular/rotundu/irqroute.c b/src/mainboard/opencellular/rotundu/irqroute.c
new file mode 100644
index 0000000000..db8c512a43
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/irqroute.c
@@ -0,0 +1,18 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 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.
+ */
+
+#include "irqroute.h"
+
+DEFINE_IRQ_ROUTES;
diff --git a/src/mainboard/opencellular/rotundu/irqroute.h b/src/mainboard/opencellular/rotundu/irqroute.h
new file mode 100644
index 0000000000..9feaa0ed9e
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/irqroute.h
@@ -0,0 +1,84 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google Inc.
+ * 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.
+ */
+
+#ifndef IRQROUTE_H
+#define IRQROUTE_H
+
+#include <soc/intel/fsp_baytrail/include/soc/irq.h>
+#include <soc/intel/fsp_baytrail/include/soc/pci_devs.h>
+
+/*
+ *IR02h GFX      INT(A)     - PIRQ A
+ *IR10h EMMC     INT(ABCD)  - PIRQ DEFG
+ *IR11h SDIO     INT(A)     - PIRQ B
+ *IR12h SD       INT(A)     - PIRQ C
+ *IR13h SATA     INT(A)     - PIRQ D
+ *IR14h XHCI     INT(A)     - PIRQ E
+ *IR15h LP Audio INT(A)     - PIRQ F
+ *IR17h MMC      INT(A)     - PIRQ F
+ *IR18h SIO      INT(ABCD)  - PIRQ BADC
+ *IR1Ah TXE      INT(A)     - PIRQ F
+ *IR1Bh HD Audio INT(A)     - PIRQ G
+ *IR1Ch PCIe     INT(ABCD)  - PIRQ EFGH
+ *IR1Dh EHCI     INT(A)     - PIRQ D
+ *IR1Eh SIO      INT(ABCD)  - PIRQ BDEF
+ *IR1Fh LPC      INT(ABCD)  - PIRQ HGBC
+ */
+
+/* PCIe bridge routing */
+#define BRIDGE1_DEV PCIE_DEV
+
+/* PCI bridge IRQs need to be updated in both tables and need to match */
+#define PCIE_BRIDGE_IRQ_ROUTES \
+	PCIE_BRIDGE_DEV(RP, BRIDGE1_DEV,    E, F, G, H)
+
+/* Devices set as A, A, A, A evaluate as 0, and don't get set */
+#define PCI_DEV_PIRQ_ROUTES \
+	PCI_DEV_PIRQ_ROUTE(GFX_DEV,     A, A, A, B), \
+	PCI_DEV_PIRQ_ROUTE(EMMC_DEV,    D, E, F, G), \
+	PCI_DEV_PIRQ_ROUTE(SDIO_DEV,    B, A, A, A), \
+	PCI_DEV_PIRQ_ROUTE(SD_DEV,      C, A, A, A), \
+	PCI_DEV_PIRQ_ROUTE(SATA_DEV,    D, A, A, A), \
+	PCI_DEV_PIRQ_ROUTE(XHCI_DEV,    E, A, A, A), \
+	PCI_DEV_PIRQ_ROUTE(LPE_DEV,     F, A, A, A), \
+	PCI_DEV_PIRQ_ROUTE(MMC45_DEV,   F, A, A, A), \
+	PCI_DEV_PIRQ_ROUTE(SIO1_DEV,    B, A, D, C), \
+	PCI_DEV_PIRQ_ROUTE(TXE_DEV,     F, A, A, A), \
+	PCI_DEV_PIRQ_ROUTE(HDA_DEV,     G, A, A, A), \
+	PCI_DEV_PIRQ_ROUTE(BRIDGE1_DEV, E, F, G, H), \
+	PCI_DEV_PIRQ_ROUTE(EHCI_DEV,    D, A, A, A), \
+	PCI_DEV_PIRQ_ROUTE(SIO2_DEV,    B, D, E, F), \
+	PCI_DEV_PIRQ_ROUTE(PCU_DEV,     H, G, B, C)
+
+/*
+ * Route each PIRQ[A-H] to a PIC IRQ[0-15]
+ * Reserved: 0, 1, 2, 8, 13
+ * PS2 keyboard: 12
+ * ACPI/SCI: 9
+ * Floppy: 6
+ */
+#define PIRQ_PIC_ROUTES \
+	PIRQ_PIC(A,  4), \
+	PIRQ_PIC(B,  5), \
+	PIRQ_PIC(C,  7), \
+	PIRQ_PIC(D, 10), \
+	PIRQ_PIC(E, 11), \
+	PIRQ_PIC(F, 12), \
+	PIRQ_PIC(G, 14), \
+	PIRQ_PIC(H, 15)
+
+#endif /* IRQROUTE_H */
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,
+};
diff --git a/src/mainboard/opencellular/rotundu/romstage.c b/src/mainboard/opencellular/rotundu/romstage.c
new file mode 100644
index 0000000000..b5c3bc8fc3
--- /dev/null
+++ b/src/mainboard/opencellular/rotundu/romstage.c
@@ -0,0 +1,56 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google Inc.
+ * Copyright (C) 2013 Sage Electronic Engineering, LLC.
+ * Copyright (C) 2014 Intel Corporation
+ * 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 <console/console.h>
+#include <soc/gpio.h>
+#include <soc/romstage.h>
+#include <drivers/intel/fsp1_0/fsp_util.h>
+#include <soc/intel/fsp_baytrail/chip.h>
+
+/**
+ * /brief mainboard call for setup that needs to be done before fsp init
+ *
+ */
+void early_mainboard_romstage_entry(void)
+{
+
+}
+
+/**
+ * Get function disables - most of these will be done automatically
+ * @param fd_mask
+ * @param fd2_mask
+ */
+void get_func_disables(uint32_t *fd_mask, uint32_t *fd2_mask)
+{
+
+}
+
+/**
+ * /brief mainboard call for setup that needs to be done after fsp init
+ *
+ */
+void late_mainboard_romstage_entry(void)
+{
+
+}
+
+void romstage_fsp_rt_buffer_callback(FSP_INIT_RT_BUFFER *FspRtBuffer)
+{
+	printk(BIOS_NOTICE, "This is the OpenCellular Rotundu GBC board.\n");
+}