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