google/enguarde: Upstream Lenovo N21 Chromebook

Migrate google/enguarde (Lenovo N21 Chromebook) from Chromium tree to
upstream, using google/rambi as a reference.

original source:
branch firmware-enguarde-5216.201.B
commit cf1f57b [Enguarde: Adjust rx delay for norm.]

TEST=built and booted Linux on enguarde with full functionality

blobs required for working image:
VGA BIOS (vgabios.bin)
firmware descriptor (ifd.bin)
Intel ME firmware (me.bin)
MRC (mrc.elf)
external reference code (refcode.elf)

Change-Id: I3ccda29d1e095d8b1b36766cda913172f72233a7
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/15444
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

1 files changed, 46 insertions, 0 deletions

diff --git a/src/mainboard/google/enguarde/fadt.c b/src/mainboard/google/enguarde/fadt.c
new file mode 100644
index 0000000000..2434d1afc1
--- /dev/null
+++ b/src/mainboard/google/enguarde/fadt.c
@@ -0,0 +1,46 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ *
+ * 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 <string.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);
+
+	memset((void *) fadt, 0, sizeof(acpi_fadt_t));
+	memcpy(header->signature, "FACP", 4);
+	header->length = sizeof(acpi_fadt_t);
+	header->revision = 3;
+	memcpy(header->oem_id, OEM_ID, 6);
+	memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+	memcpy(header->asl_compiler_id, ASLC, 4);
+	header->asl_compiler_revision = 1;
+
+	fadt->firmware_ctrl = (unsigned long) facs;
+	fadt->dsdt = (unsigned long) dsdt;
+	fadt->model = 1;
+	fadt->preferred_pm_profile = PM_MOBILE;
+
+	fadt->x_firmware_ctl_l = (unsigned long)facs;
+	fadt->x_firmware_ctl_h = 0;
+	fadt->x_dsdt_l = (unsigned long)dsdt;
+	fadt->x_dsdt_h = 0;
+
+	acpi_fill_in_fadt(fadt);
+
+	header->checksum =
+	    acpi_checksum((void *) fadt, header->length);
+}