2 files changed, 35 insertions, 0 deletions
diff --git a/src/mainboard/google/skyrim/variants/winterhold/include/variant/ec.h b/src/mainboard/google/skyrim/variants/winterhold/include/variant/ec.h
new file mode 100644
index 0000000000..9e61a440cf
--- /dev/null
+++ b/src/mainboard/google/skyrim/variants/winterhold/include/variant/ec.h
@@ -0,0 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <baseboard/ec.h>
diff --git a/src/mainboard/google/skyrim/variants/winterhold/overridetree.cb b/src/mainboard/google/skyrim/variants/winterhold/overridetree.cb
new file mode 100644
index 0000000000..e0becd4173
--- /dev/null
+++ b/src/mainboard/google/skyrim/variants/winterhold/overridetree.cb
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+chip soc/amd/mendocino
+
+	# I2C Config
+	#+-------------------+----------------------------+
+	#| Field             |  Value                     |
+	#+-------------------+----------------------------+
+	#| I2C0              | Trackpad                   |
+	#| I2C1              | Touchscreen                |
+	#| I2C2              | Speaker, Codec, P-SAR, USB |
+	#| I2C3              | D2 TPM                     |
+	#+-------------------+----------------------------+
+	register "i2c[0]" = "{
+		.speed = I2C_SPEED_FAST,
+	}"
+
+	register "i2c[1]" = "{
+		.speed = I2C_SPEED_FAST,
+	}"
+
+	register "i2c[2]" = "{
+		.speed = I2C_SPEED_FAST,
+	}"
+
+	register "i2c[3]" = "{
+		.speed = I2C_SPEED_FAST,
+		.early_init = true,
+	}"
+
+	device domain 0 on end
+end	# chip soc/amd/mendocino