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Diffstat (limited to 'src/mainboard/google/kahlee/boardid.c')
-rw-r--r--src/mainboard/google/kahlee/boardid.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/src/mainboard/google/kahlee/boardid.c b/src/mainboard/google/kahlee/boardid.c
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index 0000000000..f19b032526
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+++ b/src/mainboard/google/kahlee/boardid.c
@@ -0,0 +1,36 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2017 Advanced Micro Devices, 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 <boardid.h>
+#include <console/console.h>
+#include <gpio.h>
+
+uint8_t board_id(void)
+{
+ MAYBE_STATIC int id = -1;
+
+ gpio_t gpios[] = {
+ GPIO_135,
+ GPIO_140,
+ GPIO_144,
+ };
+
+ if (id < 0) {
+ id = gpio_base2_value(gpios, ARRAY_SIZE(gpios));
+ printk(BIOS_SPEW, "Board ID: %#x.\n", id);
+ }
+
+ return id;
+}