snps,designware-dma

Vendor: Synopsys, Inc.

Description

These nodes are “dma” bus nodes.

Synopsys Designware DMA Controller node

Properties

Node specific properties

Base properties

Properties not inherited from the base binding file.

Name	Type	Details
#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.

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 “snps,designware-dma” compatible.

Name	Type	Details
reg	array	register space This property is required. See Important properties for more information.
interrupts	array	interrupts for device 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.
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