Add support for Google Parrot Chromebook

AKA Acer C7 Chromebook

See http://www.google.com/intl/en/chrome/devices/acer-c7-chromebook.html
for more information. Thank you to Sage Electronic Engineering, LLC for
making this possible! http://www.se-eng.com/

Change-Id: Ic4e4d50045a82cbb82e1dea3cd5a04525a648612
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2026
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

1 files changed, 82 insertions, 0 deletions

diff --git a/src/mainboard/google/parrot/ec.c b/src/mainboard/google/parrot/ec.c
new file mode 100644
index 0000000000..e6d2d38b13
--- /dev/null
+++ b/src/mainboard/google/parrot/ec.c
@@ -0,0 +1,82 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 The Chromium OS Authors. All rights reserved.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <arch/acpi.h>
+#include <vendorcode/google/chromeos/chromeos.h>
+#include <types.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <arch/io.h>
+#include <ec/compal/ene932/ec.h>
+#include "ec.h"
+
+
+void parrot_ec_init(void)
+{
+	printk(BIOS_DEBUG, "Parrot EC Init\n");
+
+	/* Clean up the buffers. We don't know the initial condition. */
+	kbc_cleanup_buffers();
+
+	/* Report EC info */
+	/* EC version: cmd 0x51 - returns three bytes */
+	ec_kbc_write_cmd(0x51);
+	printk(BIOS_DEBUG,"  EC version %x.%x.%x\n",
+		   ec_kbc_read_ob(), ec_kbc_read_ob(), ec_kbc_read_ob());
+
+	/* EC Project name: cmd 0x52, 0xA0 - returns five bytes */
+	ec_kbc_write_cmd(0x52);
+	ec_kbc_write_ib(0xA0);
+	printk(BIOS_DEBUG,"  EC Project: %c%c%c%c%c\n",
+		   ec_kbc_read_ob(),ec_kbc_read_ob(),ec_kbc_read_ob(),
+		   ec_kbc_read_ob(), ec_kbc_read_ob());
+
+	/* Print the hardware revision */
+	printk(BIOS_DEBUG,"  Parrot Revision %x\n", parrot_rev());
+
+	/* US Keyboard */
+	ec_kbc_write_cmd(0x59);
+	ec_kbc_write_ib(0xE5);
+
+	/* Enable IRQ1 */
+	ec_kbc_write_cmd(0x59);
+	ec_kbc_write_ib(0xD1);
+
+	/* TODO - Do device detection and device maintain state (nvs) */
+	/* Enable Wireless and Bluetooth */
+	ec_kbc_write_cmd(0x45);
+	ec_kbc_write_ib(0xAD);
+
+	/* Set Wireless and Bluetooth Available */
+	ec_kbc_write_cmd(0x45);
+	ec_kbc_write_ib(0xA8);
+
+	/* Set Wireless and Bluetooth Enable */
+	ec_kbc_write_cmd(0x45);
+	ec_kbc_write_ib(0xA2);
+}
+
+
+/* Parrot Hardware Revision */
+u8 parrot_rev(void)
+{
+	ec_kbc_write_cmd(0x45);
+	ec_kbc_write_ib(0x40);
+	return ec_kbc_read_ob();
+}