src/mainboard/google/rex/variants/deku/overridetree.cb

chip soc/intel/meteorlake

	register "serial_io_i2c_mode" = "{
		[PchSerialIoIndexI2C0] = PchSerialIoDisabled,
		[PchSerialIoIndexI2C1] = PchSerialIoDisabled,
		[PchSerialIoIndexI2C2] = PchSerialIoDisabled,
		[PchSerialIoIndexI2C3] = PchSerialIoDisabled,
		[PchSerialIoIndexI2C4] = PchSerialIoPci,
		[PchSerialIoIndexI2C5] = PchSerialIoDisabled,
	}"

	# Intel Common SoC Config
	#+-------------------+---------------------------+
	#| Field             |  Value                    |
	#+-------------------+---------------------------+
	#| I2C4              | cr50 TPM. Early init is   |
	#|                   | required to set up a BAR  |
	#|                   | for TPM communication     |
	#+-------------------+---------------------------+
	register "common_soc_config" = "{
		.i2c[4] = {
			.early_init = 1,
			.speed = I2C_SPEED_FAST,
			.rise_time_ns = 600,
			.fall_time_ns = 400,
			.data_hold_time_ns = 50,
		},
	}"

	device domain 0 on
		device ref i2c4 on
			chip drivers/i2c/tpm
				register "hid" = ""GOOG0005""
				register "irq" = "ACPI_IRQ_EDGE_LOW(GPP_E03_IRQ)"
				device i2c 50 on end
			end
		end
	end

end