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microchip,xec-espi-host-dev (on espi bus)

Vendor: Microchip Technology Inc.

Description

Microchip XEC eSPI Host devices

Properties

Node specific properties

Deprecated node specific properties

Base properties

Properties not inherited from the base binding file.

Name

Type

Details

ldn

int

 
logical device number

This property is required.

girqs

array

 
array of GIRQ and bit positions

pcrs

array

 
PCR sleep register index and bit position

host-io

int

 
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.

host-io-addr-mask

int

 
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.

host-mem

int

 
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.

emi-mems

array

 
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.

emi-mem-cells

int

Constant value: 3

#girq-cells

int

Constant value: 1

#pcr-cells

int

Constant value: 2

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

reg

array

 
register space

This property is required.

See Important properties for more information.

interrupts

array

 
interrupts for device

See Important properties for more information.

interrupt-names

string-array

 
name of each interrupt

status

string

 
indicates the operational status of a device

Legal values: 'ok', 'okay', 'disabled', 'reserved', 'fail', 'fail-sss'

See Important properties for more information.

compatible

string-array

 
compatible strings

This property is required.

See Important properties for more information.

reg-names

string-array

 
name of each register space

interrupts-extended

compound

 
extended interrupt specifier for device

interrupt-parent

phandle

 
phandle to interrupt controller node

label

string

 
Human readable string describing the device (used as device_get_binding() argument)

See Important properties for more information.

clocks

phandle-array

 
Clock gate information

clock-names

string-array

 
name of each clock

#address-cells

int

 
number of address cells in reg property

#size-cells

int

 
number of size cells in reg property

dmas

phandle-array

 
DMA channels specifiers

dma-names

string-array

 
Provided names of DMA channel specifiers

io-channels

phandle-array

 
IO channels specifiers

io-channel-names

string-array

 
Provided names of IO channel specifiers

mboxes

phandle-array

 
mailbox / IPM channels specifiers

mbox-names

string-array

 
Provided names of mailbox / IPM channel specifiers

wakeup-source

boolean

 
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.

power-domain

phandle

 
Power domain the device belongs to.

The device will be notified when the power domain it belongs to is either
suspended or resumed.

Specifier cell names

  • emi-mem cells: base, rdlimit, wrlimit

  • girq cells: girqinfo

  • pcr cells: reg_idx, bitpos