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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?CoDUq1f/1+P34F6rgPmSnqV1xnrRWlmB9M8rvM7IWIriNh3MzKF8+d+/6t7f?= =?us-ascii?Q?MILPOehJuB+MtRGGSD9mcX2ejIevdFqz45d/IAz8kEhlzU3vREi0si/fHefQ?= =?us-ascii?Q?d2ZTDguk353JCN4zV4HXFobLeDrQtbQb9BuOkwzorfHRXgveAfPaCDs9lZmr?= =?us-ascii?Q?7DJdhaIHFtL2LzhDl1Bd+3IBOzcZSXcHtIOeEfkDLMS1Hb6+p+EuIM4vS/EL?= =?us-ascii?Q?zpxz9MmkBHwtdDWi+ZqP+Hb2OzDP4a02jbdK5YMcNUUEoZ7rwBGWmGgl1AJd?= =?us-ascii?Q?Q9dfUfCkuNCHlQbiqtIQiHDjJm7Dqeuio+9WvMyzw5hRr73QZKf5Y29T66WL?= =?us-ascii?Q?AxdxBR2nw7KCJ8pFVoZ6W/ffhh0i94Azu62wvYbXiBTabBxVsom3t7rCKCWb?= =?us-ascii?Q?wgP+eoCMNRQe6bQYkg7pFCa1zAvn+JDxYnNznj9coZRSkU8u8lR/qA7iIr6E?= =?us-ascii?Q?Yr+zEWKJJDvx7t7sei5gvrJSw6PefR4lcGDTmxmuz8lBIBtxsoVqwlKxfK96?= =?us-ascii?Q?n8F7lVq6nTwAwgnkdx4PwBTWJ7CIcpDKTCvLgUvkTYvMn2VYjCtJPvfyg6Vk?= =?us-ascii?Q?n5fwpSJU1+msaCjG+5V4JmptKRsPuyx/4rdb1gyrm9tey0b6S7nGtsND6olL?= =?us-ascii?Q?vwybGXHvSly025xRwo/o4YzQFQQRH806LHUHh6EWI7aYlI/nlTm3FM0y8rVE?= =?us-ascii?Q?wwNrU2UJukT3SIhq64aciaYLl3cD2F/AFE6aCt+docA5GQOdfONKrlCkPI/h?= =?us-ascii?Q?IfBzyo8zfczOpbZy/kzB4P+9AayUZ+DzUREkRdwnio6/71wBy3ALakCv3/Kg?= =?us-ascii?Q?DmdfvHs6oSuLPPo+BtUdHztW+G6B4iwxqki6zv9MQoK1oGagc91OHy+huv9u?= =?us-ascii?Q?Ih8jTpsT6wOSdDg6O6t1mTzKopYA6e24BoYIbKkk/jaPZKvBM7GMdp4lLjkM?= =?us-ascii?Q?vsXrtgIwN6s3EknJLStjXPDc8SXzyY0JlVEcOX5qrdrFkNT8eRl5oUV84YJZ?= =?us-ascii?Q?1ooa05Ytx2zHTTCFuRnfknDrep1c2YVs4t45OV85rAHOyOpXT4R0okAb2DUv?= =?us-ascii?Q?i9Be+P7TXrsD7iIgCd8riRV/1dALOzL0CPNJfjpfa7d6i4SHIX/jwgfFoReX?= =?us-ascii?Q?mEMZE2p8m/+tw4QLbqCA5gqGtwN+U/SuN6d2A7sPe1gY9ITl1dcWmzXTd1Yg?= =?us-ascii?Q?kg7idaETBtg5XkiENcRV9w57/yWmN4zAkhBsT28IKoxVTBRiSR22vkwK+IcD?= =?us-ascii?Q?yT7ApqNwu7lUlgKsBAG0QU+4wBfE/3lfaYIKVzv7IL/wGuSyEp8NV3HvvaDO?= =?us-ascii?Q?Aa/R+p9Kbys8k/zJmmsgZcDBByTuSYegWdfF4ImI4jokY8cD/1pSzfHgw4AP?= =?us-ascii?Q?HQ9bo2fwkRQiIdugH6lfQ/FtqtNWM4wn7sOMObLl5qhitUPJFnvFmlJioHez?= =?us-ascii?Q?HF6+0rSrElmd52zYVAGjJ6PORVQTjdTCfiyRDl4RMO4O3hRC/Gdz594FIp85?= =?us-ascii?Q?BP4mnQ9bjx3YT4tDcajWQQMUKl+0FZVVuc+ZCT6xugVTEhONbzA8oLGGLW0F?= =?us-ascii?Q?DuqjDsAl5IVRTHVjcEa4KvivIbLlgdnnxI3F3T6n?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 31ee72e8-a579-4f92-0bc1-08dddc271c9f X-MS-Exchange-CrossTenant-AuthSource: PAXPR04MB9642.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Aug 2025 18:11:10.1414 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 9tV7baC0/VPmKCPlDOLSy9l2TZpoo8VQ8vQ8YLWW0W/8uJZTj3AXCtO4XRmnpe0vK7hcJY3MmV6r6FjSB9trRQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM8PR04MB7410 On Fri, Aug 15, 2025 at 08:05:12AM +0200, Krzysztof Kozlowski wrote: > On 14/08/2025 20:50, Frank Li wrote: > > On Thu, Aug 14, 2025 at 10:25:14AM +0200, Krzysztof Kozlowski wrote: > >> On Tue, Aug 12, 2025 at 05:46:20PM +0800, Wei Fang wrote: > >>> NXP NETC (Ethernet Controller) is a multi-function PCIe Root Complex > >>> Integrated Endpoint (RCiEP), the Timer is one of its functions which > >>> provides current time with nanosecond resolution, precise periodic > >>> pulse, pulse on timeout (alarm), and time capture on external pulse > >>> support. And also supports time synchronization as required for IEEE > >>> 1588 and IEEE 802.1AS-2020. So add device tree binding doc for the > >>> PTP clock based on NETC Timer. > >>> > >>> Signed-off-by: Wei Fang > >>> > >>> --- > >>> v2 changes: > >>> 1. Refine the subject and the commit message > >>> 2. Remove "nxp,pps-channel" > >>> 3. Add description to "clocks" and "clock-names" > >>> v3 changes: > >>> 1. Remove the "system" clock from clock-names > >>> --- > >>> .../devicetree/bindings/ptp/nxp,ptp-netc.yaml | 63 +++++++++++++++++++ > >>> 1 file changed, 63 insertions(+) > >>> create mode 100644 Documentation/devicetree/bindings/ptp/nxp,ptp-netc.yaml > >>> > >>> diff --git a/Documentation/devicetree/bindings/ptp/nxp,ptp-netc.yaml b/Documentation/devicetree/bindings/ptp/nxp,ptp-netc.yaml > >>> new file mode 100644 > >>> index 000000000000..60fb2513fd76 > >>> --- /dev/null > >>> +++ b/Documentation/devicetree/bindings/ptp/nxp,ptp-netc.yaml > >>> @@ -0,0 +1,63 @@ > >>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > >>> +%YAML 1.2 > >>> +--- > >>> +$id: http://devicetree.org/schemas/ptp/nxp,ptp-netc.yaml# > >>> +$schema: http://devicetree.org/meta-schemas/core.yaml# > >>> + > >>> +title: NXP NETC V4 Timer PTP clock > >>> + > >>> +description: > >>> + NETC V4 Timer provides current time with nanosecond resolution, precise > >>> + periodic pulse, pulse on timeout (alarm), and time capture on external > >>> + pulse support. And it supports time synchronization as required for > >>> + IEEE 1588 and IEEE 802.1AS-2020. > >>> + > >>> +maintainers: > >>> + - Wei Fang > >>> + - Clark Wang > >>> + > >>> +properties: > >>> + compatible: > >>> + enum: > >>> + - pci1131,ee02 > >>> + > >>> + reg: > >>> + maxItems: 1 > >>> + > >>> + clocks: > >>> + maxItems: 1 > >>> + description: > >>> + The reference clock of NETC Timer, if not present, indicates that > >>> + the system clock of NETC IP is selected as the reference clock. > >>> + > >>> + clock-names: > >>> + description: > >>> + The "ccm_timer" means the reference clock comes from CCM of SoC. > >>> + The "ext_1588" means the reference clock comes from external IO > >>> + pins. > >>> + enum: > >>> + - ccm_timer > >> > >> You should name here how the input pin is called, not the source. Pin is > >> "ref"? > >> > >>> + - ext_1588 > >> > >> This should be just "ext"? We probably talked about this, but this feels > >> like you describe one input in different ways. > >> > >> You will get the same questions in the future, if commit msg does not > >> reflect previous talks. > >> > >>> + > >>> +required: > >>> + - compatible > >>> + - reg > >>> + > >>> +allOf: > >>> + - $ref: /schemas/pci/pci-device.yaml > >>> + > >>> +unevaluatedProperties: false > >>> + > >>> +examples: > >>> + - | > >>> + pcie { > >>> + #address-cells = <3>; > >>> + #size-cells = <2>; > >>> + > >>> + ethernet@18,0 { > >> > >> That's rather timer or ptp-timer or your binding is incorrect. Please > >> describe COMPLETE device in your binding. > > > > Krzysztof: > > > > I have question about "COMPLETE" here. For some MFD/syscon, I know > > need descript all children nodes to make MFD/syscon complete. > > > > But here it is PCIe device. > > > > pcie_4ca00000: pcie@4ca00000 { > > compatible = "pci-host-ecam-generic"; > > ... > > > > enetc_port0: ethernet@0,0 { > > compatible = "fsl,imx95-enetc", "..."; > > ... > > > > ptp-timer@18,0 { > > compatible = "pci1131,ee02"; > > } > > }; > > > > parent "pci-host-ecam-generic" is common pci binding, each children > > is indepentant part. > > > > I am not sure how to decript COMPLETE device for PCI devices. > > I don't know what is missing here, but naming it ethernet suggested > there are other functions not being described in the binding. name 'ethernet@18,0' is wrong, which should be fixed as 'ptp-timer@18,0'. which is independence device. This file descript its's bindings. Other embedded pcie devices located in ENETC submodule is descript by other binding files. Such as MIDO: Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml NIC: Documentation/devicetree/bindings/net/fsl,enetc.yaml For ptp-timer, I think it should be complete enough. Do we need descirpt its's consumer? An example https://lore.kernel.org/imx/20250812094634.489901-4-wei.fang@nxp.com/ + pcie { + #address-cells = <3>; + #size-cells = <2>; + + ethernet@0,0 { + compatible = "pci1131,e101"; + reg = <0x000000 0 0 0 0>; + clocks = <&scmi_clk 102>; + clock-names = "ref"; + phy-handle = <ðphy0>; + phy-mode = "rgmii-id"; + ptp-timer = <&netc_timer>; This phandle point to ptp-timer@18,0 + }; + }; Frank > > > > Best regards, > Krzysztof