nuvoton,npcx-espi

Vendor: Nuvoton Technology Corporation

Note

An implementation of a driver matching this compatible is available in drivers/espi/espi_npcx.c.

Description

These nodes are “espi” bus nodes.

Nuvoton, NPCX-eSPI node

Properties

Properties not inherited from the base binding file.

Name

Type

Details

pinctrl-0

phandles

 
Pin configuration/s for the first state. Content is specific to the
selected pin controller driver implementation.

This property is required.

pinctrl-names

string-array

 
Names for the provided states. The number of names needs to match the
number of states.

This property is required.

espi-rst-wui

phandle

 
Mapping table between Wake-Up Input (WUI) and ESPI_RST signal.

For example the WUI mapping on NPCX7 would be
   espi-rst-wui = <&wui_cr_sin1>;

This property is required.

rx-plsize

int

 
The maximum receive channel payload size.

This property is required.

tx-plsize

int

 
The maximum transmit channel payload size.

This property is required.

vw-index-extend-set

array

 
Array of encoded virtual wire information
Update the vw index in group setting. Here is the format.
< ESPI_NPCX_VW_EX_VAL(direction, group_number, index) >
direction: 1 for ESPI_CONTROLLER_TO_TARGET and 0 for ESPI_TARGET_TO_CONTROLLER.
group_number: The number of VWEVMS or VWEVSM.
index: The index to be replaced.

For example, update the index of VWEVMS6 into 0x4A and the index of VWEVSM8 into 0x53
  vw-index-extend-set = < ESPI_NPCX_VW_EX_VAL(1, 6, 0x4A)
                          ESPI_NPCX_VW_EX_VAL(0, 8, 0x53) >

pinctrl-1

phandles

 
Pin configuration/s for the second state. See pinctrl-0.

pinctrl-2

phandles

 
Pin configuration/s for the third state. See pinctrl-0.

pinctrl-3

phandles

 
Pin configuration/s for the fourth state. See pinctrl-0.

pinctrl-4

phandles

 
Pin configuration/s for the fifth state. See pinctrl-0.