On Thu, Mar 19, 2020 at 06:28:00PM +0200, Grygorii Strashko wrote: > Document device tree bindings for The TI AM654x/J721E SoC Gigabit Ethernet MAC > (Media Access Controller - CPSW2G NUSS). The CPSW NUSS provides Ethernet packet > communication for the device. > > Signed-off-by: Grygorii Strashko <grygorii.strashko@xxxxxx> > Tested-by: Murali Karicheri <m-karicheri2@xxxxxx> > --- > .../bindings/net/ti,k3-am654-cpsw-nuss.yaml | 226 ++++++++++++++++++ > 1 file changed, 226 insertions(+) > create mode 100644 Documentation/devicetree/bindings/net/ti,k3-am654-cpsw-nuss.yaml > > diff --git a/Documentation/devicetree/bindings/net/ti,k3-am654-cpsw-nuss.yaml b/Documentation/devicetree/bindings/net/ti,k3-am654-cpsw-nuss.yaml > new file mode 100644 > index 000000000000..c28b5c925377 > --- /dev/null > +++ b/Documentation/devicetree/bindings/net/ti,k3-am654-cpsw-nuss.yaml > @@ -0,0 +1,226 @@ > +# 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@xxxxxx> > + - Sekhar Nori <nsekhar@xxxxxx> > + > +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: > + minItems: 9 Drop this. maxItems is enough. > + maxItems: 9 > + > + dma-names: > + items: > + - const: tx0 > + - const: tx1 > + - const: tx2 > + - const: tx3 > + - const: tx4 > + - const: tx5 > + - const: tx6 > + - const: tx7 > + - const: rx > + > + pinctrl-names: true Don't need this. It is implicitly allowed. > + > + ethernet-ports: > + type: object > + properties: > + '#address-cells': > + const: 1 > + '#size-cells': > + const: 0 > + > + patternProperties: > + "^port@[0-9]+$": reg must be 1, but unit-address can be any number (though it should be hex)? > + type: object > + description: CPSW2G NUSS external ports > + > + allOf: > + - $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 ethernet-ports needs an 'additionalProperties: false' > + > + mdio: > + type: object > + allOf: > + - $ref: "ti,davinci-mdio.yaml#" > + description: > + CPSW MDIO bus. > + > +patternProperties: > + "^pinctrl-[0-9]+$": true Can drop this. > + > +required: > + - compatible > + - reg > + - reg-names > + - ranges > + - clocks > + - clock-names > + - power-domains > + - dmas > + - dma-names > + - '#address-cells' > + - '#size-cells' Add: 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> > + > + 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 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>; > + }; > + }; > + }; > -- > 2.17.1 >
