diff options
Diffstat (limited to 'dts/Bindings/dma/ti/k3-udma.yaml')
| -rw-r--r-- | dts/Bindings/dma/ti/k3-udma.yaml | 79 |
1 files changed, 50 insertions, 29 deletions
diff --git a/dts/Bindings/dma/ti/k3-udma.yaml b/dts/Bindings/dma/ti/k3-udma.yaml index 34780d7535..b18cf2bfdb 100644 --- a/dts/Bindings/dma/ti/k3-udma.yaml +++ b/dts/Bindings/dma/ti/k3-udma.yaml @@ -1,13 +1,15 @@ # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2019 Texas Instruments Incorporated +# Author: Peter Ujfalusi <peter.ujfalusi@ti.com> %YAML 1.2 --- $id: http://devicetree.org/schemas/dma/ti/k3-udma.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: Texas Instruments K3 NAVSS Unified DMA Device Tree Bindings +title: Texas Instruments K3 NAVSS Unified DMA maintainers: - - Peter Ujfalusi <peter.ujfalusi@ti.com> + - Peter Ujfalusi <peter.ujfalusi@gmail.com> description: | The UDMA-P is intended to perform similar (but significantly upgraded) @@ -41,11 +43,13 @@ description: | configuration of the legacy peripheral. allOf: - - $ref: "../dma-controller.yaml#" + - $ref: ../dma-controller.yaml# + - $ref: /schemas/arm/keystone/ti,k3-sci-common.yaml# properties: "#dma-cells": - const: 1 + minimum: 1 + maximum: 2 description: | The cell is the PSI-L thread ID of the remote (to UDMAP) end. Valid ranges for thread ID depends on the data movement direction: @@ -55,6 +59,8 @@ properties: Please refer to the device documentation for the PSI-L thread map and also the PSI-L peripheral chapter for the correct thread ID. + When #dma-cells is 2, the second parameter is the channel ATYPE. + compatible: enum: - ti,am654-navss-main-udmap @@ -63,37 +69,36 @@ properties: - ti,j721e-navss-mcu-udmap reg: - maxItems: 3 + minItems: 3 + items: + - description: UDMA-P Control /Status Registers region + - description: RX Channel Realtime Registers region + - description: TX Channel Realtime Registers region + - description: TX Configuration Registers region + - description: RX Configuration Registers region + - description: RX Flow Configuration Registers region reg-names: - items: - - const: gcfg - - const: rchanrt - - const: tchanrt + minItems: 3 + items: + - const: gcfg + - const: rchanrt + - const: tchanrt + - const: tchan + - const: rchan + - const: rflow msi-parent: true - ti,sci: - description: phandle to TI-SCI compatible System controller node - allOf: - - $ref: /schemas/types.yaml#/definitions/phandle - - ti,sci-dev-id: - description: TI-SCI device id of UDMAP - allOf: - - $ref: /schemas/types.yaml#/definitions/uint32 - ti,ringacc: description: phandle to the ring accelerator node - allOf: - - $ref: /schemas/types.yaml#/definitions/phandle + $ref: /schemas/types.yaml#/definitions/phandle ti,sci-rm-range-tchan: description: | Array of UDMA tchan resource subtypes for resource allocation for this host - allOf: - - $ref: /schemas/types.yaml#/definitions/uint32-array + $ref: /schemas/types.yaml#/definitions/uint32-array minItems: 1 # Should be enough maxItems: 255 @@ -102,8 +107,7 @@ properties: description: | Array of UDMA rchan resource subtypes for resource allocation for this host - allOf: - - $ref: /schemas/types.yaml#/definitions/uint32-array + $ref: /schemas/types.yaml#/definitions/uint32-array minItems: 1 # Should be enough maxItems: 255 @@ -112,8 +116,7 @@ properties: description: | Array of UDMA rflow resource subtypes for resource allocation for this host - allOf: - - $ref: /schemas/types.yaml#/definitions/uint32-array + $ref: /schemas/types.yaml#/definitions/uint32-array minItems: 1 # Should be enough maxItems: 255 @@ -131,6 +134,21 @@ required: - ti,sci-rm-range-rchan - ti,sci-rm-range-rflow +if: + properties: + "#dma-cells": + const: 2 +then: + properties: + ti,udma-atype: + description: ATYPE value which should be used by non slave channels + $ref: /schemas/types.yaml#/definitions/uint32 + + required: + - ti,udma-atype + +unevaluatedProperties: false + examples: - |+ cbass_main { @@ -151,8 +169,11 @@ examples: compatible = "ti,am654-navss-main-udmap"; reg = <0x0 0x31150000 0x0 0x100>, <0x0 0x34000000 0x0 0x100000>, - <0x0 0x35000000 0x0 0x100000>; - reg-names = "gcfg", "rchanrt", "tchanrt"; + <0x0 0x35000000 0x0 0x100000>, + <0x0 0x30b00000 0x0 0x20000>, + <0x0 0x30c00000 0x0 0x8000>, + <0x0 0x30d00000 0x0 0x4000>; + reg-names = "gcfg", "rchanrt", "tchanrt", "tchan", "rchan", "rflow"; #dma-cells = <1>; ti,ringacc = <&ringacc>; |