microchip,xec-espi-host-dev (on espi bus)
Vendor: Microchip Technology Inc.
Note
An implementation of a driver matching this compatible is available in drivers/espi/espi_mchp_xec_host_v2.c.
Description
Microchip XEC eSPI Host devices
Properties
Properties not inherited from the base binding file.
Name |
Type |
Details |
|---|---|---|
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logical device number
This property is required. |
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array of GIRQ and bit positions
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PCR sleep register index and bit position
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Logical device Host I/O (x86) base. Refer to SoC documentation for the
number of I/O decoders implemented by a device (1 or 2) and the fixed
I/O masks.
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Host I/O address mask. This value is fixed for all HW and is only
used by Port80 BIOS debug alias device to specify the byte lane the
alias address is mapped to in the 80h to 83h I/O range.
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Logical device Host memory (x86) base address. Refer to SoC
documentation for which logical devices implement a memory decoder
and the fixed memory address masking.
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Each EMI host device supports Host access to two SoC data memory
regions. Each region requires three configuration parameters:
Base address in the SoC data memory, read limit, and write limit.
If bits[14:2] of the address written by the Host to the EC address
register is less than the limit value the access is allowed. Bit[15]
of the EC address selects which of the two memory regions is accessed.
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Constant value: |
Deprecated properties not inherited from the base binding file.
(None)
Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “microchip,xec-espi-host-dev” compatible.
Name |
Type |
Details |
|---|---|---|
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register space
This property is required. See Important properties for more information. |
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indicates the operational status of a device
Legal values: See Important properties for more information. |
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compatible strings
This property is required. See Important properties for more information. |
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name of each register space
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interrupts for device
See Important properties for more information. |
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extended interrupt specifier for device
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name of each interrupt
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phandle to interrupt controller node
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Human readable string describing the device (used as device_get_binding() argument)
See Important properties for more information. This property is deprecated. |
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Clock gate information
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name of each clock
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number of address cells in reg property
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number of size cells in reg property
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DMA channels specifiers
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Provided names of DMA channel specifiers
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IO channels specifiers
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Provided names of IO channel specifiers
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mailbox / IPM channels specifiers
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Provided names of mailbox / IPM channel specifiers
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Power domain specifiers
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Provided names of power domain specifiers
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Number of cells in power-domains property
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Do not initialize device automatically on boot. Device should be manually
initialized using device_init().
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Property to identify that a device can be used as wake up source.
When this property is provided a specific flag is set into the
device that tells the system that the device is capable of
wake up the system.
Wake up capable devices are disabled (interruptions will not wake up
the system) by default but they can be enabled at runtime if necessary.
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Automatically configure the device for runtime power management after the
init function runs.
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List of power states that will disable this device power.
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Specifier cell names
emi-mem cells: base, rdlimit, wrlimit