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Fri, 29 Mar 2024 02:04:34 +0000 From: Inochi Amaoto To: Vinod Koul , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen Wang , Inochi Amaoto , Paul Walmsley , Palmer Dabbelt , Albert Ou Cc: Jisheng Zhang , Liu Gui , Jingbao Qiu , dlan@gentoo.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org Subject: [PATCH v6 1/3] dt-bindings: dmaengine: Add dma multiplexer for CV18XX/SG200X series SoC Date: Fri, 29 Mar 2024 10:04:37 +0800 Message-ID: X-Mailer: git-send-email 2.44.0 In-Reply-To: References: X-TMN: [ooin3k6VJ7coTSQbNqFJF/i9M6jHWYbaOztpjJjWsgo=] X-ClientProxiedBy: SI2PR02CA0012.apcprd02.prod.outlook.com (2603:1096:4:194::7) To IA1PR20MB4953.namprd20.prod.outlook.com (2603:10b6:208:3af::19) X-Microsoft-Original-Message-ID: <20240329020442.373744-1-inochiama@outlook.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: IA1PR20MB4953:EE_|SA1PR20MB5151:EE_ X-MS-Office365-Filtering-Correlation-Id: 997d6efb-69bd-428e-12bb-08dc4f949427 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 997d6efb-69bd-428e-12bb-08dc4f949427 X-MS-Exchange-CrossTenant-AuthSource: IA1PR20MB4953.namprd20.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Mar 2024 02:04:34.0594 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR20MB5151 The DMA IP of Sophgo CV18XX/SG200X is based on a DW AXI CORE, with an additional channel remap register located in the top system control area. The DMA channel is exclusive to each core. In addition, the DMA multiplexer is a subdevice of system controller, so this binding only contains necessary properties for the multiplexer itself. Add the dmamux binding for CV18XX/SG200X series SoC. Signed-off-by: Inochi Amaoto Reviewed-by: Krzysztof Kozlowski --- .../bindings/dma/sophgo,cv1800-dmamux.yaml | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml -- 2.44.0 diff --git a/Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml b/Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml new file mode 100644 index 000000000000..480cb117db9b --- /dev/null +++ b/Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/sophgo,cv1800-dmamux.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Sophgo CV1800/SG200 Series DMA multiplexer + +maintainers: + - Inochi Amaoto + +description: | + The DMA multiplexer of CV1800 is a subdevice of the system + controller. It support mapping 8 channels, but each channel + can be mapped only once. + +allOf: + - $ref: dma-router.yaml# + +properties: + compatible: + const: sophgo,cv1800-dmamux + + reg: + items: + - description: DMA channal remapping register + - description: DMA channel interrupt mapping register + + '#dma-cells': + const: 2 + description: + The first cells is device id. The second one is the cpu id. + + dma-masters: + maxItems: 1 + +required: + - reg + - '#dma-cells' + - dma-masters + +additionalProperties: false + +examples: + - | + dma-router@154 { + compatible = "sophgo,cv1800-dmamux"; + reg = <0x154 0x8>, <0x298 0x4>; + #dma-cells = <2>; + dma-masters = <&dmac>; + };