cortina,gemini-sata-bridge.yaml (3024B)
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/ata/cortina,gemini-sata-bridge.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Cortina Systems Gemini SATA Bridge 8 9maintainers: 10 - Linus Walleij <linus.walleij@linaro.org> 11 12description: | 13 The Gemini SATA bridge in a SoC-internal PATA to SATA bridge that 14 takes two Faraday Technology FTIDE010 PATA controllers and bridges 15 them in different configurations to two SATA ports. 16 17properties: 18 compatible: 19 const: cortina,gemini-sata-bridge 20 21 reg: 22 maxItems: 1 23 24 resets: 25 minItems: 2 26 maxItems: 2 27 description: phandles to the reset lines for both SATA bridges 28 29 reset-names: 30 items: 31 - const: sata0 32 - const: sata1 33 34 clocks: 35 minItems: 2 36 maxItems: 2 37 description: phandles to the compulsory peripheral clocks 38 39 clock-names: 40 items: 41 - const: SATA0_PCLK 42 - const: SATA1_PCLK 43 44 syscon: 45 $ref: /schemas/types.yaml#/definitions/phandle 46 description: a phandle to the global Gemini system controller 47 48 cortina,gemini-ata-muxmode: 49 $ref: /schemas/types.yaml#/definitions/uint32 50 enum: 51 - 0 52 - 1 53 - 2 54 - 3 55 description: | 56 Tell the desired multiplexing mode for the ATA controller and SATA 57 bridges. 58 Mode 0: ata0 master <-> sata0 59 ata1 master <-> sata1 60 ata0 slave interface brought out on IDE pads 61 Mode 1: ata0 master <-> sata0 62 ata1 master <-> sata1 63 ata1 slave interface brought out on IDE pads 64 Mode 2: ata1 master <-> sata1 65 ata1 slave <-> sata0 66 ata0 master and slave interfaces brought out on IDE pads 67 Mode 3: ata0 master <-> sata0 68 ata0 slave <-> sata1 69 ata1 master and slave interfaces brought out on IDE pads 70 71 cortina,gemini-enable-ide-pins: 72 type: boolean 73 description: Enables the PATA to IDE connection. 74 The muxmode setting decides whether ATA0 or ATA1 is brought out, 75 and whether master, slave or both interfaces get brought out. 76 77 cortina,gemini-enable-sata-bridge: 78 type: boolean 79 description: Enables the PATA to SATA bridge inside the Gemnini SoC. 80 The Muxmode decides what PATA blocks will be muxed out and how. 81 82required: 83 - clocks 84 - clock-names 85 - cortina,gemini-ata-muxmode 86 - resets 87 - reset-names 88 - compatible 89 - reg 90 - syscon 91 92additionalProperties: false 93 94examples: 95 - | 96 #include <dt-bindings/clock/cortina,gemini-clock.h> 97 sata@46000000 { 98 compatible = "cortina,gemini-sata-bridge"; 99 reg = <0x46000000 0x100>; 100 resets = <&rcon 26>, <&rcon 27>; 101 reset-names = "sata0", "sata1"; 102 clocks = <&gcc GEMINI_CLK_GATE_SATA0>, 103 <&gcc GEMINI_CLK_GATE_SATA1>; 104 clock-names = "SATA0_PCLK", "SATA1_PCLK"; 105 syscon = <&syscon>; 106 cortina,gemini-ata-muxmode = <3>; 107 cortina,gemini-enable-ide-pins; 108 cortina,gemini-enable-sata-bridge; 109 };