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Davis" , Tero Kristo , Suman Anna , Roger Quadros , YueHaibing , MD Danish Anwar , Vignesh Raghavendra , Krzysztof Kozlowski , Rob Herring , Paolo Abeni , Jakub Kicinski , Eric Dumazet , "David S. Miller" , , Randy Dunlap , Richard Cochran CC: , , , , , , , Subject: [RFC PATCH v7 1/2] dt-bindings: net: Add ICSSG Ethernet Date: Tue, 2 May 2023 11:46:49 +0530 Message-ID: <20230502061650.2716736-2-danishanwar@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230502061650.2716736-1-danishanwar@ti.com> References: <20230502061650.2716736-1-danishanwar@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Spam-Status: No, score=-4.6 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1764762970282580272?= X-GMAIL-MSGID: =?utf-8?q?1764762970282580272?= Add a YAML binding document for the ICSSG Programmable real time unit based Ethernet hardware. The ICSSG driver uses the PRU and PRUSS consumer APIs to interface the PRUs and load/run the firmware for supporting ethernet functionality. Reviewed-by: Rob Herring Signed-off-by: MD Danish Anwar --- .../bindings/net/ti,icssg-prueth.yaml | 184 ++++++++++++++++++ 1 file changed, 184 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml diff --git a/Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml b/Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml new file mode 100644 index 000000000000..8ec30b3eb760 --- /dev/null +++ b/Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml @@ -0,0 +1,184 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/ti,icssg-prueth.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments ICSSG PRUSS Ethernet + +maintainers: + - Md Danish Anwar + +description: + Ethernet based on the Programmable Real-Time Unit and Industrial + Communication Subsystem. + +allOf: + - $ref: /schemas/remoteproc/ti,pru-consumer.yaml# + +properties: + compatible: + enum: + - ti,am654-icssg-prueth # for AM65x SoC family + + sram: + $ref: /schemas/types.yaml#/definitions/phandle + description: + phandle to MSMC SRAM node + + dmas: + maxItems: 10 + + dma-names: + items: + - const: tx0-0 + - const: tx0-1 + - const: tx0-2 + - const: tx0-3 + - const: tx1-0 + - const: tx1-1 + - const: tx1-2 + - const: tx1-3 + - const: rx0 + - const: rx1 + + ti,mii-g-rt: + $ref: /schemas/types.yaml#/definitions/phandle + description: + phandle to MII_G_RT module's syscon regmap. + + ti,mii-rt: + $ref: /schemas/types.yaml#/definitions/phandle + description: + phandle to MII_RT module's syscon regmap + + interrupts: + maxItems: 2 + description: + Interrupt specifiers to TX timestamp IRQ. + + interrupt-names: + items: + - const: tx_ts0 + - const: tx_ts1 + + ethernet-ports: + type: object + additionalProperties: false + + properties: + '#address-cells': + const: 1 + '#size-cells': + const: 0 + + patternProperties: + ^port@[0-1]$: + type: object + description: ICSSG PRUETH external ports + $ref: ethernet-controller.yaml# + unevaluatedProperties: false + + properties: + reg: + items: + - enum: [0, 1] + description: ICSSG PRUETH port number + + interrupts: + maxItems: 1 + + ti,syscon-rgmii-delay: + items: + - items: + - description: phandle to system controller node + - description: The offset to ICSSG control register + $ref: /schemas/types.yaml#/definitions/phandle-array + description: + phandle to system controller node and register offset + to ICSSG control register for RGMII transmit delay + + required: + - reg + anyOf: + - required: + - port@0 + - required: + - port@1 + +required: + - compatible + - sram + - dmas + - dma-names + - ethernet-ports + - ti,mii-g-rt + - interrupts + - interrupt-names + +unevaluatedProperties: false + +examples: + - | + /* Example k3-am654 base board SR2.0, dual-emac */ + pruss2_eth: ethernet { + compatible = "ti,am654-icssg-prueth"; + pinctrl-names = "default"; + pinctrl-0 = <&icssg2_rgmii_pins_default>; + sram = <&msmc_ram>; + + ti,prus = <&pru2_0>, <&rtu2_0>, <&tx_pru2_0>, + <&pru2_1>, <&rtu2_1>, <&tx_pru2_1>; + firmware-name = "ti-pruss/am65x-pru0-prueth-fw.elf", + "ti-pruss/am65x-rtu0-prueth-fw.elf", + "ti-pruss/am65x-txpru0-prueth-fw.elf", + "ti-pruss/am65x-pru1-prueth-fw.elf", + "ti-pruss/am65x-rtu1-prueth-fw.elf", + "ti-pruss/am65x-txpru1-prueth-fw.elf"; + ti,pruss-gp-mux-sel = <2>, /* MII mode */ + <2>, + <2>, + <2>, /* MII mode */ + <2>, + <2>; + dmas = <&main_udmap 0xc300>, /* egress slice 0 */ + <&main_udmap 0xc301>, /* egress slice 0 */ + <&main_udmap 0xc302>, /* egress slice 0 */ + <&main_udmap 0xc303>, /* egress slice 0 */ + <&main_udmap 0xc304>, /* egress slice 1 */ + <&main_udmap 0xc305>, /* egress slice 1 */ + <&main_udmap 0xc306>, /* egress slice 1 */ + <&main_udmap 0xc307>, /* egress slice 1 */ + <&main_udmap 0x4300>, /* ingress slice 0 */ + <&main_udmap 0x4301>; /* ingress slice 1 */ + dma-names = "tx0-0", "tx0-1", "tx0-2", "tx0-3", + "tx1-0", "tx1-1", "tx1-2", "tx1-3", + "rx0", "rx1"; + ti,mii-g-rt = <&icssg2_mii_g_rt>; + interrupt-parent = <&icssg2_intc>; + interrupts = <24 0 2>, <25 1 3>; + interrupt-names = "tx_ts0", "tx_ts1"; + ethernet-ports { + #address-cells = <1>; + #size-cells = <0>; + pruss2_emac0: port@0 { + reg = <0>; + phy-handle = <&pruss2_eth0_phy>; + phy-mode = "rgmii-id"; + interrupts-extended = <&icssg2_intc 24>; + ti,syscon-rgmii-delay = <&scm_conf 0x4120>; + /* Filled in by bootloader */ + local-mac-address = [00 00 00 00 00 00]; + }; + + pruss2_emac1: port@1 { + reg = <1>; + phy-handle = <&pruss2_eth1_phy>; + phy-mode = "rgmii-id"; + interrupts-extended = <&icssg2_intc 25>; + ti,syscon-rgmii-delay = <&scm_conf 0x4124>; + /* Filled in by bootloader */ + local-mac-address = [00 00 00 00 00 00]; + }; + }; + };