trogdor: Add mainboard gpio support

Change-Id: I06cdb8eaaf7f74b47e1d1283dcaa765674ceaa45
Signed-off-by: T Michael Turney <mturney@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36070
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 54 insertions, 0 deletions

diff --git a/src/mainboard/google/trogdor/boardid.c b/src/mainboard/google/trogdor/boardid.c
new file mode 100644
index 0000000000..def3068d31
--- /dev/null
+++ b/src/mainboard/google/trogdor/boardid.c
@@ -0,0 +1,54 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2018 Google LLC
+ * Copyright 2019 The Linux Foundation.  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.
+ */
+
+#include <boardid.h>
+#include <gpio.h>
+
+uint32_t board_id(void)
+{
+	static uint32_t id = UNDEFINED_STRAPPING_ID;
+
+	const gpio_t pins[] = {[2] = GPIO(31), [1] = GPIO(93), [0] = GPIO(33)};
+
+	if (id == UNDEFINED_STRAPPING_ID)
+		id = gpio_base2_value(pins, ARRAY_SIZE(pins));
+
+	return id;
+}
+
+uint32_t ram_code(void)
+{
+	static uint32_t id = UNDEFINED_STRAPPING_ID;
+
+	const gpio_t pins[] = {[1] = GPIO(91), [0] = GPIO(29)};
+
+	if (id == UNDEFINED_STRAPPING_ID)
+		id = gpio_base2_value(pins, ARRAY_SIZE(pins));
+
+	return id;
+}
+
+uint32_t sku_id(void)
+{
+	static uint32_t id = UNDEFINED_STRAPPING_ID;
+
+	const gpio_t pins[] = {[1] = GPIO(90), [0] = GPIO(114)};
+
+	if (id == UNDEFINED_STRAPPING_ID)
+		id = gpio_base2_value(pins, ARRAY_SIZE(pins));
+
+	return id;
+}