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1* Cortina Systems Gemini SATA Bridge
2
3The Gemini SATA bridge in a SoC-internal PATA to SATA bridge that
4takes two Faraday Technology FTIDE010 PATA controllers and bridges
5them in different configurations to two SATA ports.
6
7Required properties:
8- compatible: should be
9 "cortina,gemini-sata-bridge"
10- reg: registers and size for the block
11- resets: phandles to the reset lines for both SATA bridges
12- reset-names: must be "sata0", "sata1"
13- clocks: phandles to the compulsory peripheral clocks
14- clock-names: must be "SATA0_PCLK", "SATA1_PCLK"
15- syscon: a phandle to the global Gemini system controller
16- cortina,gemini-ata-muxmode: tell the desired multiplexing mode for
17 the ATA controller and SATA bridges. Values 0..3:
18 Mode 0: ata0 master <-> sata0
19 ata1 master <-> sata1
20 ata0 slave interface brought out on IDE pads
21 Mode 1: ata0 master <-> sata0
22 ata1 master <-> sata1
23 ata1 slave interface brought out on IDE pads
24 Mode 2: ata1 master <-> sata1
25 ata1 slave <-> sata0
26 ata0 master and slave interfaces brought out
27 on IDE pads
28 Mode 3: ata0 master <-> sata0
29 ata0 slave <-> sata1
30 ata1 master and slave interfaces brought out
31 on IDE pads
32
33Optional boolean properties:
34- cortina,gemini-enable-ide-pins: enables the PATA to IDE connection.
35 The muxmode setting decides whether ATA0 or ATA1 is brought out,
36 and whether master, slave or both interfaces get brought out.
37- cortina,gemini-enable-sata-bridge: enables the PATA to SATA bridge
38 inside the Gemnini SoC. The Muxmode decides what PATA blocks will
39 be muxed out and how.
40
41Example:
42
43sata: sata@46000000 {
44 compatible = "cortina,gemini-sata-bridge";
45 reg = <0x46000000 0x100>;
46 resets = <&rcon 26>, <&rcon 27>;
47 reset-names = "sata0", "sata1";
48 clocks = <&gcc GEMINI_CLK_GATE_SATA0>,
49 <&gcc GEMINI_CLK_GATE_SATA1>;
50 clock-names = "SATA0_PCLK", "SATA1_PCLK";
51 syscon = <&syscon>;
52 cortina,gemini-ata-muxmode = <3>;
53 cortina,gemini-enable-ide-pins;
54 cortina,gemini-enable-sata-bridge;
55};