1  ## SPDX-License-Identifier: GPL-2.0-only
 2  
 3  config TPM_INIT_RAMSTAGE
 4  	bool
 5  	default y if TPM
 6  	depends on !VBOOT && !VENDORCODE_ELTAN_VBOOT && !VENDORCODE_ELTAN_MBOOT \
 7  		&& !TPM_MEASURED_BOOT_INIT_BOOTBLOCK
 8  	help
 9  	  This driver automatically initializes the TPM if vboot is not used.
10  	  The TPM driver init is done during the ramstage chip init phase.
11  
12  config TPM_PPI
13  	bool "Generate ACPI code to implement TPM physical presence interface"
14  	depends on TPM
15  	depends on HAVE_ACPI_TABLES
16  	depends on !CHROMEOS
17  	default y if PAYLOAD_EDK2
18  	help
19  	  This driver automatically generates ACPI tables for the Physical
20  	  Presence Interface defined by the TCG. If not activated only a stub
21  	  will be generated without any functionality.