d1948dc164
Add an emulation controller which routes eSPI traffic to attached emulators depending on the selected chip(mostly host). This allows drivers for eSPI peripherals to be tested on systems that don't have that peripheral attached, with the emulator handling the eSPI traffic. Signed-off-by: Dawid Niedzwiecki <dn@semihalf.com>
17 lines
788 B
Plaintext
17 lines
788 B
Plaintext
# Copyright 2020 Google LLC
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# SPDX-License-Identifier: Apache-2.0
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config ESPI_EMUL
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bool "eSPI emulator"
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help
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Enable the eSPI emulator driver. This is a fake driver,
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it does not talk to real hardware. Instead it talks to emulation
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drivers that pretend to be devices on the emulated eSPI bus. It is
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used for testing drivers for eSPI devices.
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eSPI is an interface using SPI wires, whose main goal is to reduce the
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number of required pins. It includes the functionality of LPC, SMB, SPI
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itself (flash access) and GPIO (virtual wires). Please refer to the
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specification for more details (it is good for the introduction as well)
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https://www.intel.com/content/dam/support/us/en/documents/software/chipset-software/327432-004_espi_base_specification_rev1.0_cb.pdf
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