1# Copyright 2020 Google LLC
2# SPDX-License-Identifier: Apache-2.0
3
4config ESPI_EMUL
5	bool "eSPI emulator"
6	default y
7	depends on DT_HAS_ZEPHYR_ESPI_EMUL_CONTROLLER_ENABLED
8	depends on EMUL
9	help
10	  Enable the eSPI emulator driver. This is a fake driver,
11	  it does not talk to real hardware. Instead it talks to emulation
12	  drivers that pretend to be devices on the emulated eSPI bus. It is
13	  used for testing drivers for eSPI devices.
14
15	  eSPI is an interface using SPI wires, whose main goal is to reduce the
16	  number of required pins. It includes the functionality of LPC, SMB, SPI
17	  itself (flash access) and GPIO (virtual wires). Please refer to the
18	  specification for more details (it is good for the introduction as well)
19	  https://www.intel.com/content/dam/support/us/en/documents/software/chipset-software/327432-004_espi_base_specification_rev1.0_cb.pdf
20