1 files changed, 38 insertions, 0 deletions
diff --git a/src/mainboard/google/nyan/boardid.c b/src/mainboard/google/nyan/boardid.c
new file mode 100644
index 0000000000..18d920b6f5
--- /dev/null
+++ b/src/mainboard/google/nyan/boardid.c
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 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.
+ *
+ * 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 <console/console.h>
+#include <soc/nvidia/tegra124/gpio.h>
+
+#include "boardid.h"
+
+uint8_t board_id(void)
+{
+	static int id = -1;
+
+	if (id < 0) {
+		id = gpio_get_in_value(GPIO(Q3)) << 0 |
+		     gpio_get_in_value(GPIO(T1)) << 1 |
+		     gpio_get_in_value(GPIO(X1)) << 2 |
+		     gpio_get_in_value(GPIO(X4)) << 3;
+		printk(BIOS_SPEW, "Board ID: %#x.\n", id);
+	}
+
+	return id;
+}