mb/google/dedede: Add waddledee variant

Add initial support for waddledee variant board.

BUG=b:151576904
TEST=Build the mainboard and variant board.

Change-Id: I20d41fbbb78c7fd2f964a97ffebbc9c3bbfb1c5c
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39580
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

1 files changed, 40 insertions, 0 deletions

diff --git a/src/mainboard/google/dedede/variants/waddledee/overridetree.cb b/src/mainboard/google/dedede/variants/waddledee/overridetree.cb
new file mode 100644
index 0000000000..23db34e66c
--- /dev/null
+++ b/src/mainboard/google/dedede/variants/waddledee/overridetree.cb
@@ -0,0 +1,40 @@
+chip soc/intel/tigerlake
+
+	# Intel Common SoC Config
+	#+-------------------+---------------------------+
+	#| Field             |  Value                    |
+	#+-------------------+---------------------------+
+	#| GSPI0             | cr50 TPM. Early init is   |
+	#|                   | required to set up a BAR  |
+	#|                   | for TPM communication     |
+	#|                   | before memory is up       |
+	#| I2C0              | Trackpad                  |
+	#| I2C1              | Digitizer                 |
+	#| I2C2              | Touchscreen               |
+	#| I2C3              | Camera                    |
+	#| I2C4              | Audio                     |
+	#+-------------------+---------------------------+
+	register "common_soc_config" = "{
+		.gspi[0] = {
+			.speed_mhz = 1,
+			.early_init = 1,
+		},
+		.i2c[0] = {
+			.speed = I2C_SPEED_FAST,
+		},
+		.i2c[1] = {
+			.speed = I2C_SPEED_FAST,
+		},
+		.i2c[2] = {
+			.speed = I2C_SPEED_FAST,
+		},
+		.i2c[3] = {
+			.speed = I2C_SPEED_FAST,
+		},
+		.i2c[4] = {
+			.speed = I2C_SPEED_FAST,
+		},
+	}"
+
+	device domain 0 on end
+end