| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/net/loongson,ls1c-emac.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Loongson-1C Ethernet MAC Controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Keguang Zhang <keguang.zhang@gmail.com> |
| 11 | |
| 12 | description: | |
| 13 | Loongson-1C Ethernet MAC Controller is based on |
| 14 | Synopsys DesignWare MAC (version 3.50a). |
| 15 | |
| 16 | Main features |
| 17 | - 10/100Mbps |
| 18 | - Full-duplex operation (IEEE 802.3x flow control automatic transmission) |
| 19 | - Half-duplex operation (CSMA/CD Protocol and back-pressure support) |
| 20 | - IEEE 802.1Q VLAN tag detection for reception frames |
| 21 | - MII interface |
| 22 | - RMII interface |
| 23 | |
| 24 | select: |
| 25 | properties: |
| 26 | compatible: |
| 27 | contains: |
| 28 | enum: |
| 29 | - loongson,ls1c-emac |
| 30 | required: |
| 31 | - compatible |
| 32 | |
| 33 | properties: |
| 34 | compatible: |
| 35 | items: |
| 36 | - enum: |
| 37 | - loongson,ls1c-emac |
| 38 | - const: snps,dwmac-3.50a |
| 39 | |
| 40 | reg: |
| 41 | maxItems: 1 |
| 42 | |
| 43 | clocks: |
| 44 | maxItems: 1 |
| 45 | |
| 46 | clock-names: |
| 47 | items: |
| 48 | - const: stmmaceth |
| 49 | |
| 50 | interrupts: |
| 51 | maxItems: 1 |
| 52 | |
| 53 | interrupt-names: |
| 54 | items: |
| 55 | - const: macirq |
| 56 | |
| 57 | loongson,ls1-syscon: |
| 58 | $ref: /schemas/types.yaml#/definitions/phandle |
| 59 | description: |
| 60 | Phandle to the syscon containing some extra configurations |
| 61 | including PHY interface mode. |
| 62 | |
| 63 | phy-mode: |
| 64 | enum: |
| 65 | - mii |
| 66 | - rmii |
| 67 | |
| 68 | required: |
| 69 | - compatible |
| 70 | - reg |
| 71 | - clocks |
| 72 | - clock-names |
| 73 | - interrupts |
| 74 | - interrupt-names |
| 75 | - loongson,ls1-syscon |
| 76 | |
| 77 | allOf: |
| 78 | - $ref: snps,dwmac.yaml# |
| 79 | |
| 80 | unevaluatedProperties: false |
| 81 | |
| 82 | examples: |
| 83 | - | |
| 84 | #include <dt-bindings/clock/loongson,ls1x-clk.h> |
| 85 | #include <dt-bindings/interrupt-controller/irq.h> |
| 86 | |
| 87 | emac: ethernet@1fe10000 { |
| 88 | compatible = "loongson,ls1c-emac", "snps,dwmac-3.50a"; |
| 89 | reg = <0x1fe10000 0x10000>; |
| 90 | |
| 91 | clocks = <&clkc LS1X_CLKID_AHB>; |
| 92 | clock-names = "stmmaceth"; |
| 93 | |
| 94 | interrupt-parent = <&intc1>; |
| 95 | interrupts = <2 IRQ_TYPE_LEVEL_HIGH>; |
| 96 | interrupt-names = "macirq"; |
| 97 | |
| 98 | loongson,ls1-syscon = <&syscon>; |
| 99 | |
| 100 | phy-handle = <&phy0>; |
| 101 | phy-mode = "mii"; |
| 102 | snps,pbl = <1>; |
| 103 | |
| 104 | mdio { |
| 105 | #address-cells = <1>; |
| 106 | #size-cells = <0>; |
| 107 | compatible = "snps,dwmac-mdio"; |
| 108 | |
| 109 | phy0: ethernet-phy@13 { |
| 110 | reg = <0x13>; |
| 111 | }; |
| 112 | }; |
| 113 | }; |