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Wed, 10 Apr 2024 01:21:10 +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, Krzysztof Kozlowski Subject: [PATCH v7 1/3] dt-bindings: dmaengine: Add dma multiplexer for CV18XX/SG200X series SoC Date: Wed, 10 Apr 2024 09:21:20 +0800 Message-ID: X-Mailer: git-send-email 2.44.0 In-Reply-To: References: X-TMN: [wRYU3N0bLwrQcV2pCBOx9FrMzXdZXRFxklPN7PurhHA=] X-ClientProxiedBy: SG2P153CA0001.APCP153.PROD.OUTLOOK.COM (2603:1096::11) To IA1PR20MB4953.namprd20.prod.outlook.com (2603:10b6:208:3af::19) X-Microsoft-Original-Message-ID: <20240410012124.165438-1-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_|CYYPR20MB6833:EE_ X-MS-Office365-Filtering-Correlation-Id: dfa0ea31-ba26-459f-67f7-08dc58fc8124 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: vqPQVAKulveoKpiiuvgbYEgbMYH4XnuZ2+VwShr8zen6vvSdCqatEZg4N2oTH1nxF/htrvwM3RFO5zBJZixkZtAhwvfV1Ip4cjWftGm1SMjJq16T2VLfCOEDDzk0KaGJs+4jw3+yZXOGkaXHMP8n3K0LHduxjT5sl9d/OPaUlPU5LzSLkU5jhhYmTvMso/zitiGZwXUtRQ3hY6MjAwSx5AIFABbfll9WRakCP1mp+mkVZ9paMhKJFYXsMiPeVWasq7gR3aTvfMWhAVmtKcIMsfyTsr1yIOEZBMDmq8qftbFwkxPK0mLNgZ/nrue6zfU07ZNwImFLYPcS/aqVklZ1IaZUl/VleqSKwzDhV1JmrwSMkNLbzTJuIL0eyrFtRpYXydJfFeXbWSsmYR/DwaHH48fhX8+GT0k3jyoR33LDGG78LN5JLNxnjRPYbnijO07egkQDrVLIZhI/6SIBC/m6yVPghHThUZSi0uDCZmJOpLuy9qtnnyzARNRxKVd82L944/IHhSUbUtns1tSbNLSIpOlLHcg4iTndnZ1w2qn+5q1GNMh3YLm2OExKOeGJSZloga089D7Lu1wybFD7E2jB81k/V8iZvpYTNQ3Sn32tmR7Fx2Z7kzVfXEbKPenVtZmjM2Nhm1NI1nG+KlhweCq/dYsR1OalU5ikEy3n2x+A8VVlcAsog7GDVGLuz9DPqxBE8L0RQG3WpAFP80HLbTRJM6nc1hftWEP2Jvm2kKMCYlc9kyuNLkrWuabIvKcLzp4bM6LQCXl8tzEKNyokivP3XSsuaj0RNOfH3efbMTOpBXjNRV8WEI10jFKKKB7UsbfR8wGulECin03bwHXtnPF6PREPdmkQRzwz17KGBIvpmBxZfC6NEgbzVqNQwMsk41K8ow6NiQxNfZp82gzB7blbi+9UXPnbg8JY8zp1eyIWtg64mXB4dJvwX7UsxIAC/bSAwy+bbBGlX5Rv+0Ph5kiCDsLAm3hkuXzFuy3ib4nZmInMDaLFrvrfm/rq6NHtqFG7Nk8TjYoFWqqBIlMfqyaOylCdb6r+ZDqgzdaw6GExusAqj5ECZ9tiJXJOOcq5hV+gG7+xQWEdJo97lyMCDc3HDOjwbnyLtLIlPs9EBe89wO6JnaKX6GmTAfWqi3zP/sZHL70Yn4tNCRwZzbdR+Ye8Wq8oongi6PSe3kxVDL4Ycw/wFhyqxhZwX8+LCadpII4atRPD677jXmQdiXi8c57ByX47KK8aq62P4wafoeKojWbNlQkg37mfvUDpzi4+VoMD X-OriginatorOrg: outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: dfa0ea31-ba26-459f-67f7-08dc58fc8124 X-MS-Exchange-CrossTenant-AuthSource: IA1PR20MB4953.namprd20.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Apr 2024 01:21:10.2833 (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: CYYPR20MB6833 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>; + };