The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/ata/cortina,gemini-sata-bridge.txt

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    1 * Cortina Systems Gemini SATA Bridge
    2 
    3 The Gemini SATA bridge in a SoC-internal PATA to SATA bridge that
    4 takes two Faraday Technology FTIDE010 PATA controllers and bridges
    5 them in different configurations to two SATA ports.
    6 
    7 Required 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 
   33 Optional 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 
   41 Example:
   42 
   43 sata: 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 };

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