| # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| # Copyright 2019 BayLibre, SAS |
| %YAML 1.2 |
| --- |
| $id: "http://devicetree.org/schemas/net/stm32-dwmac.yaml#" |
| $schema: "http://devicetree.org/meta-schemas/core.yaml#" |
| |
| title: STMicroelectronics STM32 / MCU DWMAC glue layer controller |
| |
| maintainers: |
| - Alexandre Torgue <alexandre.torgue@st.com> |
| - Christophe Roullier <christophe.roullier@st.com> |
| |
| description: |
| This file documents platform glue layer for stmmac. |
| |
| # We need a select here so we don't match all nodes with 'snps,dwmac' |
| select: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - st,stm32-dwmac |
| - st,stm32mp1-dwmac |
| required: |
| - compatible |
| |
| allOf: |
| - $ref: "snps,dwmac.yaml#" |
| |
| properties: |
| compatible: |
| oneOf: |
| - items: |
| - enum: |
| - st,stm32mp1-dwmac |
| - const: snps,dwmac-4.20a |
| - items: |
| - enum: |
| - st,stm32-dwmac |
| - const: snps,dwmac-4.10a |
| - items: |
| - enum: |
| - st,stm32-dwmac |
| - const: snps,dwmac-3.50a |
| |
| clocks: |
| minItems: 3 |
| maxItems: 5 |
| items: |
| - description: GMAC main clock |
| - description: MAC TX clock |
| - description: MAC RX clock |
| - description: For MPU family, used for power mode |
| - description: For MPU family, used for PHY without quartz |
| |
| clock-names: |
| minItems: 3 |
| maxItems: 5 |
| contains: |
| enum: |
| - stmmaceth |
| - mac-clk-tx |
| - mac-clk-rx |
| - ethstp |
| - eth-ck |
| |
| st,syscon: |
| $ref: "/schemas/types.yaml#/definitions/phandle-array" |
| description: |
| Should be phandle/offset pair. The phandle to the syscon node which |
| encompases the glue register, and the offset of the control register |
| |
| st,eth-clk-sel: |
| description: |
| set this property in RGMII PHY when you want to select RCC clock instead of ETH_CLK125. |
| type: boolean |
| |
| st,eth-ref-clk-sel: |
| description: |
| set this property in RMII mode when you have PHY without crystal 50MHz and want to |
| select RCC clock instead of ETH_REF_CLK. |
| type: boolean |
| |
| required: |
| - compatible |
| - clocks |
| - clock-names |
| - st,syscon |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| #include <dt-bindings/clock/stm32mp1-clks.h> |
| #include <dt-bindings/reset/stm32mp1-resets.h> |
| #include <dt-bindings/mfd/stm32h7-rcc.h> |
| //Example 1 |
| ethernet0: ethernet@5800a000 { |
| compatible = "st,stm32mp1-dwmac", "snps,dwmac-4.20a"; |
| reg = <0x5800a000 0x2000>; |
| reg-names = "stmmaceth"; |
| interrupts = <&intc GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>; |
| interrupt-names = "macirq"; |
| clock-names = "stmmaceth", |
| "mac-clk-tx", |
| "mac-clk-rx", |
| "ethstp", |
| "eth-ck"; |
| clocks = <&rcc ETHMAC>, |
| <&rcc ETHTX>, |
| <&rcc ETHRX>, |
| <&rcc ETHSTP>, |
| <&rcc ETHCK_K>; |
| st,syscon = <&syscfg 0x4>; |
| snps,pbl = <2>; |
| snps,axi-config = <&stmmac_axi_config_0>; |
| snps,tso; |
| phy-mode = "rgmii"; |
| }; |
| |
| //Example 2 (MCU example) |
| ethernet1: ethernet@40028000 { |
| compatible = "st,stm32-dwmac", "snps,dwmac-3.50a"; |
| reg = <0x40028000 0x8000>; |
| reg-names = "stmmaceth"; |
| interrupts = <0 61 0>, <0 62 0>; |
| interrupt-names = "macirq", "eth_wake_irq"; |
| clock-names = "stmmaceth", "mac-clk-tx", "mac-clk-rx"; |
| clocks = <&rcc 0 25>, <&rcc 0 26>, <&rcc 0 27>; |
| st,syscon = <&syscfg 0x4>; |
| snps,pbl = <8>; |
| snps,mixed-burst; |
| phy-mode = "mii"; |
| }; |
| |
| //Example 3 |
| ethernet2: ethernet@40027000 { |
| compatible = "st,stm32-dwmac", "snps,dwmac-4.10a"; |
| reg = <0x40028000 0x8000>; |
| reg-names = "stmmaceth"; |
| interrupts = <61>; |
| interrupt-names = "macirq"; |
| clock-names = "stmmaceth", "mac-clk-tx", "mac-clk-rx"; |
| clocks = <&rcc 62>, <&rcc 61>, <&rcc 60>; |
| st,syscon = <&syscfg 0x4>; |
| snps,pbl = <8>; |
| phy-mode = "mii"; |
| }; |