| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/net/ti,k3-am654-cpsw-nuss.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: The TI AM654x/J721E SoC Gigabit Ethernet MAC (Media Access Controller) Device Tree Bindings |
| |
| maintainers: |
| - Grygorii Strashko <grygorii.strashko@ti.com> |
| - Sekhar Nori <nsekhar@ti.com> |
| |
| description: |
| The TI AM654x/J721E SoC Gigabit Ethernet MAC (CPSW2G NUSS) has two ports |
| (one external) and provides Ethernet packet communication for the device. |
| CPSW2G NUSS features - the Reduced Gigabit Media Independent Interface (RGMII), |
| Reduced Media Independent Interface (RMII), the Management Data |
| Input/Output (MDIO) interface for physical layer device (PHY) management, |
| new version of Common Platform Time Sync (CPTS), updated Address Lookup |
| Engine (ALE). |
| One external Ethernet port (port 1) with selectable RGMII/RMII interfaces and |
| an internal Communications Port Programming Interface (CPPI5) (Host port 0). |
| Host Port 0 CPPI Packet Streaming Interface interface supports 8 TX channels |
| and one RX channels and operating by TI AM654x/J721E NAVSS Unified DMA |
| Peripheral Root Complex (UDMA-P) controller. |
| The CPSW2G NUSS is integrated into device MCU domain named MCU_CPSW0. |
| |
| Additional features |
| priority level Quality Of Service (QOS) support (802.1p) |
| Support for Audio/Video Bridging (P802.1Qav/D6.0) |
| Support for IEEE 1588 Clock Synchronization (2008 Annex D, Annex E and Annex F) |
| Flow Control (802.3x) Support |
| Time Sensitive Network Support |
| IEEE P902.3br/D2.0 Interspersing Express Traffic |
| IEEE 802.1Qbv/D2.2 Enhancements for Scheduled Traffic |
| Configurable number of addresses plus VLANs |
| Configurable number of classifier/policers |
| VLAN support, 802.1Q compliant, Auto add port VLAN for untagged frames on |
| ingress, Auto VLAN removal on egress and auto pad to minimum frame size. |
| RX/TX csum offload |
| |
| Specifications can be found at |
| http://www.ti.com/lit/ug/spruid7e/spruid7e.pdf |
| http://www.ti.com/lit/ug/spruil1a/spruil1a.pdf |
| |
| properties: |
| "#address-cells": true |
| "#size-cells": true |
| |
| compatible: |
| oneOf: |
| - const: ti,am654-cpsw-nuss |
| - const: ti,j721e-cpsw-nuss |
| |
| reg: |
| maxItems: 1 |
| description: |
| The physical base address and size of full the CPSW2G NUSS IO range |
| |
| reg-names: |
| items: |
| - const: cpsw_nuss |
| |
| ranges: true |
| |
| dma-coherent: true |
| |
| clocks: |
| description: CPSW2G NUSS functional clock |
| |
| clock-names: |
| items: |
| - const: fck |
| |
| power-domains: |
| maxItems: 1 |
| |
| dmas: |
| maxItems: 9 |
| |
| dma-names: |
| items: |
| - const: tx0 |
| - const: tx1 |
| - const: tx2 |
| - const: tx3 |
| - const: tx4 |
| - const: tx5 |
| - const: tx6 |
| - const: tx7 |
| - const: rx |
| |
| ethernet-ports: |
| type: object |
| properties: |
| '#address-cells': |
| const: 1 |
| '#size-cells': |
| const: 0 |
| |
| patternProperties: |
| port@1: |
| type: object |
| description: CPSW2G NUSS external ports |
| |
| $ref: ethernet-controller.yaml# |
| |
| properties: |
| reg: |
| items: |
| - const: 1 |
| description: CPSW port number |
| |
| phys: |
| maxItems: 1 |
| description: phandle on phy-gmii-sel PHY |
| |
| label: |
| description: label associated with this port |
| |
| ti,mac-only: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: |
| Specifies the port works in mac-only mode. |
| |
| ti,syscon-efuse: |
| $ref: /schemas/types.yaml#/definitions/phandle-array |
| description: |
| Phandle to the system control device node which provides access |
| to efuse IO range with MAC addresses |
| |
| required: |
| - reg |
| - phys |
| |
| additionalProperties: false |
| |
| patternProperties: |
| "^mdio@[0-9a-f]+$": |
| type: object |
| $ref: "ti,davinci-mdio.yaml#" |
| |
| description: |
| CPSW MDIO bus. |
| |
| "^cpts@[0-9a-f]+": |
| type: object |
| $ref: "ti,k3-am654-cpts.yaml#" |
| description: |
| CPSW Common Platform Time Sync (CPTS) module. |
| |
| required: |
| - compatible |
| - reg |
| - reg-names |
| - ranges |
| - clocks |
| - clock-names |
| - power-domains |
| - dmas |
| - dma-names |
| - '#address-cells' |
| - '#size-cells' |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/pinctrl/k3.h> |
| #include <dt-bindings/soc/ti,sci_pm_domain.h> |
| #include <dt-bindings/net/ti-dp83867.h> |
| #include <dt-bindings/interrupt-controller/irq.h> |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| |
| bus { |
| #address-cells = <2>; |
| #size-cells = <2>; |
| |
| mcu_cpsw: ethernet@46000000 { |
| compatible = "ti,am654-cpsw-nuss"; |
| #address-cells = <2>; |
| #size-cells = <2>; |
| reg = <0x0 0x46000000 0x0 0x200000>; |
| reg-names = "cpsw_nuss"; |
| ranges = <0x0 0x0 0x0 0x46000000 0x0 0x200000>; |
| dma-coherent; |
| clocks = <&k3_clks 5 10>; |
| clock-names = "fck"; |
| power-domains = <&k3_pds 5 TI_SCI_PD_EXCLUSIVE>; |
| pinctrl-names = "default"; |
| pinctrl-0 = <&mcu_cpsw_pins_default &mcu_mdio_pins_default>; |
| |
| dmas = <&mcu_udmap 0xf000>, |
| <&mcu_udmap 0xf001>, |
| <&mcu_udmap 0xf002>, |
| <&mcu_udmap 0xf003>, |
| <&mcu_udmap 0xf004>, |
| <&mcu_udmap 0xf005>, |
| <&mcu_udmap 0xf006>, |
| <&mcu_udmap 0xf007>, |
| <&mcu_udmap 0x7000>; |
| dma-names = "tx0", "tx1", "tx2", "tx3", "tx4", "tx5", "tx6", "tx7", |
| "rx"; |
| |
| ethernet-ports { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| cpsw_port1: port@1 { |
| reg = <1>; |
| ti,mac-only; |
| label = "port1"; |
| ti,syscon-efuse = <&mcu_conf 0x200>; |
| phys = <&phy_gmii_sel 1>; |
| |
| phy-mode = "rgmii-rxid"; |
| phy-handle = <&phy0>; |
| }; |
| }; |
| |
| davinci_mdio: mdio@f00 { |
| compatible = "ti,cpsw-mdio","ti,davinci_mdio"; |
| reg = <0x0 0xf00 0x0 0x100>; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| clocks = <&k3_clks 5 10>; |
| clock-names = "fck"; |
| bus_freq = <1000000>; |
| |
| phy0: ethernet-phy@0 { |
| reg = <0>; |
| ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>; |
| ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>; |
| }; |
| }; |
| }; |
| |
| cpts@3d000 { |
| compatible = "ti,am65-cpts"; |
| reg = <0x0 0x3d000 0x0 0x400>; |
| clocks = <&k3_clks 18 2>; |
| clock-names = "cpts"; |
| interrupts-extended = <&gic500 GIC_SPI 858 IRQ_TYPE_LEVEL_HIGH>; |
| interrupt-names = "cpts"; |
| ti,cpts-ext-ts-inputs = <4>; |
| ti,cpts-periodic-outputs = <2>; |
| }; |
| }; |
