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brcm,iproc-pax-dma-v1

Vendor: Broadcom Corporation

Description

These nodes are “dma” bus nodes.

Broadcom iProc PAX(PCIE<->AXI) DMA controller version 1

Properties

Node specific properties

Deprecated node specific properties

Base properties

Properties not inherited from the base binding file.

Name

Type

Details

bd-memory

array

 
Uncached memory address to populate dma buffer descriptors

This property is required.

scr-addr-loc

int

 
Location where address of the scratch buffer host has populated

This property is required.

scr-size-loc

int

 
Location where size of the scratch buffer host has populated

This property is required.

pcie-ep

phandle

 
Pcie endpoint handle

This property is required.

#dma-cells

int

 
Number of items to expect in a DMA specifier

This property is required.

dma-channel-mask

int

 
Bitmask of available DMA channels in ascending order that are
not reserved by firmware and are available to the
kernel. i.e. first channel corresponds to LSB.

dma-channels

int

 
Number of DMA channels supported by the controller

dma-requests

int

 
Number of DMA request signals supported by the controller.

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 “brcm,iproc-pax-dma-v1” compatible.

Name

Type

Details

reg

array

 
Register space for the memory mapped PAX DMA controller registers,
It includes data mover engine(dme), ring manager, ring manager common
registers.

This property is required.

See Important properties for more information.

label

string

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

This property is required.

See Important properties for more information.

interrupts

array

 
Ring manager line interrupt number

See Important properties for more information.

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-names

string-array

 
name of each interrupt

interrupt-parent

phandle

 
phandle to interrupt controller node

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.