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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: AOtNrfAKW1KrMFfo9IgiXt6OCVYVzJyIEJthOoKGSyjfpyyHg2fuc4Ar/yu/EVTed7bYTa/aWRLMF0cyucaJcqIyVxWLWynH6EWH0LfhGkrOc4fymQdyPQ/eg4jEG2cX7LZIddiAuzOabFazChza+6LB0Sm5oK8AU326EoQamigQmq2IQIEKDhjGE5O9yrjml4D/hHg0iGY9oJAqKHlGgOHCC5lIBBqN2vqWjW9j4vujpUvaPxysLHhu6LDO5BiXXoEfZvw8kR3SfxxVk6dEmZ7AV/XlxTAnv/BzO1rUZEW+TCYmx+dpMdqhDZNxYBeJuggpypReHtbQ/7PmnbDM3ISHf5HKB0Kzr6/Xk2XZH/RKMbhts3B6WZiXDe3zpFszQXeokDVo5RmUVgSxNIGvSTmAb9mzyU3md3bOfp0VCc7nnDW/vUvj1Tld3ATNXkRr X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Apr 2026 08:53:48.3430 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e9dcfca8-daf5-4768-e903-08dea503a9b9 X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.21.195];Helo=[flwvzet201.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: SN1PEPF00036F40.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR10MB4959 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260428_015353_991382_F753AE78 X-CRM114-Status: GOOD ( 14.93 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org New binding document for Texas Instruments K3 Packet DMA (PKTDMA) V2. PKTDMA V2 is introduced as part of AM62L. Signed-off-by: Sai Sree Kartheek Adivi --- .../bindings/dma/ti/ti,am62l-dmss-pktdma.yaml | 101 ++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/ti/ti,am62l-dmss-pktdma.yaml diff --git a/Documentation/devicetree/bindings/dma/ti/ti,am62l-dmss-pktdma.yaml b/Documentation/devicetree/bindings/dma/ti/ti,am62l-dmss-pktdma.yaml new file mode 100644 index 0000000000000..32bcb0ba502c1 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/ti/ti,am62l-dmss-pktdma.yaml @@ -0,0 +1,101 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2024-2025 Texas Instruments Incorporated +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/ti/ti,am62l-dmss-pktdma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments K3 DMSS PKTDMA V2 + +maintainers: + - Sai Sree Kartheek Adivi + +description: + The PKTDMA V2 is intended to perform similar functions as the packet mode + channels of K3 UDMA-P. PKTDMA V2 only includes Split channels to service + PSI-L based peripherals. + + The peripherals can be PSI-L native or legacy, non PSI-L native peripherals + with PDMAs. PDMA is tasked to act as a bridge between the PSI-L fabric and the + legacy peripheral. + +allOf: + - $ref: /schemas/dma/dma-controller.yaml# + +properties: + compatible: + const: ti,am62l-dmss-pktdma + + reg: + items: + - description: Packet DMA Control & Status + - description: Channel Realtime + - description: Ring Realtime + + reg-names: + items: + - const: gcfg + - const: chanrt + - const: ringrt + + "#address-cells": + const: 0 + + "#dma-cells": + const: 2 + description: | + cell 1: Channel identification for the peripheral + PSI-L thread ID of the remote (to PKTDMA) end. + Valid ranges for thread ID depends on the data movement direction: + for source thread IDs (rx): 0 - 0x7fff + for destination thread IDs (tx): 0x8000 - 0xffff + + Please refer to the device documentation for the PSI-L thread map and + also the PSI-L peripheral chapter for the correct thread ID. + + cell 2: ASEL value for the channel + + interrupts: + minItems: 1 + maxItems: 112 + description: + Interrupts for DMA channels. + + interrupt-names: + minItems: 1 + maxItems: 112 + items: + pattern: "^chan[0-9]+$" + description: + The name of the interrupt corresponding to the DMA channel. + +required: + - compatible + - reg + - reg-names + - "#address-cells" + - "#dma-cells" + - interrupts + - interrupt-names + +unevaluatedProperties: false + +examples: + - | + #include + #include + + dma-controller@485c0000 { + compatible = "ti,am62l-dmss-pktdma"; + reg = <0x485c0000 0x4000>, + <0x48900000 0x80000>, + <0x47200000 0x100000>; + reg-names = "gcfg", "chanrt", "ringrt"; + + #address-cells = <0>; + #dma-cells = <2>; + + interrupts = , + ; + interrupt-names = "chan64", "chan65"; + }; -- 2.53.0