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Wysocki" , Russell King , Shuah Khan , Jonathan Corbet Subject: [PATCH net-next v2 3/7] dt-bindings: net: xlnx,xxv-ethernet: Add Xilinx XXV 10G/25G Ethernet Date: Thu, 6 Aug 2026 23:41:49 +0530 Message-ID: <20260806181153.1213996-4-suraj.gupta2@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260806181153.1213996-1-suraj.gupta2@amd.com> References: <20260723123838.125145-1-suraj.gupta2@amd.com> <20260806181153.1213996-1-suraj.gupta2@amd.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN1PEPF00004683:EE_|EAYPR12MB999134:EE_ X-MS-Office365-Filtering-Correlation-Id: 1d984f0a-fa41-4da3-039b-08def3e646da X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|82310400026|23010399003|36860700016|376014|7416014|22082099003|18002099003|11063799006|4143699003|3023799007|13003099007|10067099003|56012099006|921020; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:satlexmb07.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(1800799024)(82310400026)(23010399003)(36860700016)(376014)(7416014)(22082099003)(18002099003)(11063799006)(4143699003)(3023799007)(13003099007)(10067099003)(56012099006)(921020);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: kUtF92D6rfwvVnxSnViU6IYutn9DrFo4ofoSuZChGybEUFrzWDGzBGNQTE3ZYl4tKCMi3wMB2TCs18sCPL1fowYfWg58DiZfTbGpQagiIfHL01QKwoWsk0kyRpqjMRcdjXvkfHyX3jHktO5nnUUD+Vz0MiUBc3paAMTkfBlwhVi33bqenXb5bl0DD8KLfRilcTiR6RUO5eGFQUnzqZsD1jhoXSSYTrZlTx71T1JKLaXlJ0N61RZBnZWju8zf9z8REL8ag2yNwvVIKAyXIi6r2tjA62yvaK7qw8yqKeWL7fhj7cI0iglEDB/MVI/DXWsG75Z9Z20Uj14W7jOiluM45++NpPw3LRx2aT7xpq2Sq9DBio50rIK7P0k028a4R1fZM0slYRr7RhXinKMHCcOwZ4O2cKnYA+87bfms+RSPhT1I1ORa5poxZQhUIeHorXmM X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Aug 2026 18:12:28.9502 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1d984f0a-fa41-4da3-039b-08def3e646da X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN1PEPF00004683.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: EAYPR12MB999134 The XXV Ethernet IP integrates a 10G/25G Ethernet MAC with an in-core PCS/PMA driving a high-speed serial transceiver. Its payload is moved by an external AXI DMA (or multichannel DMA) controller referenced through the dmas/dma-names properties. Document the IP in a dedicated schema file. Add the "xlnx,xxv-ethernet-1.0" compatible with the 10gbase-r and 25gbase-r phy-modes, the rx_core/drp/s_axi clocks and the AXI DMA channel properties. Signed-off-by: Suraj Gupta --- .../bindings/net/xlnx,xxv-ethernet.yaml | 107 ++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 108 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/xlnx,xxv-ethernet.yaml diff --git a/Documentation/devicetree/bindings/net/xlnx,xxv-ethernet.yaml b/Documentation/devicetree/bindings/net/xlnx,xxv-ethernet.yaml new file mode 100644 index 000000000000..2be3ade11d46 --- /dev/null +++ b/Documentation/devicetree/bindings/net/xlnx,xxv-ethernet.yaml @@ -0,0 +1,107 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/xlnx,xxv-ethernet.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Xilinx XXV 10G/25G Ethernet Subsystem + +maintainers: + - Radhey Shyam Pandey + - Suraj Gupta + +description: + The Xilinx XXV Ethernet Subsystem implements a 10G/25G Ethernet MAC with an + in-core PCS/PMA driving a high-speed serial transceiver. It supports the + 10GBASE-R and 25GBASE-R line rates, with 25G operation following the 25G + Ethernet Consortium specification. It has no external MDIO PHY, and its + payload is moved by an external AXI DMA (or multichannel DMA) controller + referenced through the "dmas" property. + +properties: + compatible: + const: xlnx,xxv-ethernet-1.0 + + reg: + maxItems: 1 + description: MAC control and status register space. + + clocks: + items: + - description: RX AXI4-Stream clock. + - description: GT DRP clock. + - description: AXI4-Lite register clock. + + clock-names: + items: + - const: rx_core + - const: drp + - const: s_axi + + phy-mode: + enum: + - 10gbase-r + - 25gbase-r + + xlnx,rxmem: + description: + Size in bytes of the Rx/Tx packet buffer memory built into the IP. It is + fixed by the hardware design and bounds the largest frame (jumbo MTU) the + device can accept. + $ref: /schemas/types.yaml#/definitions/uint32 + + dmas: + minItems: 2 + maxItems: 32 + description: TX and RX DMA channel phandle. + + dma-names: + items: + pattern: "^[tr]x_chan([0-9]|1[0-5])$" + description: + Should be "tx_chan0", "tx_chan1" ... "tx_chan15" for DMA Tx channel and + "rx_chan0", "rx_chan1" ... "rx_chan15" for DMA Rx channel. + minItems: 2 + maxItems: 32 + +required: + - compatible + - reg + - clocks + - clock-names + - phy-mode + - xlnx,rxmem + - dmas + - dma-names + +allOf: + - $ref: /schemas/net/ethernet-controller.yaml# + +unevaluatedProperties: false + +examples: + # Single AXI DMA channel pair + - | + ethernet@80000000 { + compatible = "xlnx,xxv-ethernet-1.0"; + reg = <0x80000000 0x10000>; + clock-names = "rx_core", "drp", "s_axi"; + clocks = <&rx_clk>, <&drp_clk>, <&axi_clk>; + dma-names = "tx_chan0", "rx_chan0"; + dmas = <&axi_dma 0>, <&axi_dma 1>; + phy-mode = "25gbase-r"; + xlnx,rxmem = <0x8000>; + }; + # Multichannel DMA (MCDMA) with multiple Tx/Rx channels + - | + ethernet@80010000 { + compatible = "xlnx,xxv-ethernet-1.0"; + reg = <0x80010000 0x10000>; + clock-names = "rx_core", "drp", "s_axi"; + clocks = <&rx_clk>, <&drp_clk>, <&axi_clk>; + dma-names = "tx_chan0", "tx_chan1", "rx_chan0", "rx_chan1"; + dmas = <&axi_mcdma 0>, <&axi_mcdma 1>, + <&axi_mcdma 16>, <&axi_mcdma 17>; + phy-mode = "10gbase-r"; + xlnx,rxmem = <0x8000>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 2d420d40782e..8160a8ddec65 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -29557,6 +29557,7 @@ XILINX AXI ETHERNET DRIVER M: Radhey Shyam Pandey S: Maintained F: Documentation/devicetree/bindings/net/xlnx,axi-ethernet.yaml +F: Documentation/devicetree/bindings/net/xlnx,xxv-ethernet.yaml F: drivers/net/ethernet/xilinx/xilinx_axienet* XILINX CAN DRIVER -- 2.25.1