On Saturday, May 06, 2017 02:10:51 PM Linus Walleij wrote:
> This adds device tree bindings for the Cortina Systems Gemini
> PATA to SATA bridge.
>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Cc: John Feng-Hsin Chiang <john453@xxxxxxxxxxxxxxxx>
> Cc: Greentime Hu <green.hu@xxxxxxxxx>
> Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> ---
> .../bindings/ata/cortina,gemini-sata-bridge.txt | 55 ++++++++++++++++++++++
> 1 file changed, 55 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt
>
> diff --git a/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt b/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt
> new file mode 100644
> index 000000000000..9fe92818b2fb
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt
> @@ -0,0 +1,55 @@
> +* Cortina Systems Gemini SATA Bridge
> +
> +The Gemini SATA bridge in a SoC-internal PATA to SATA bridge that
> +takes two Faraday Technology FTIDE010 PATA controllers and bridges
> +them in different configurations to two SATA ports.
> +
> +Required properties:
> +- compatible: should be
> + "cortina,gemini-sata-bridge"
> +- reg: registers and size for the block
> +- resets: phandles to the reset lines for both SATA bridges
> +- reset-names: must be "sata0", "sata1"
> +- clocks: phandles to the compulsory peripheral clocks
> +- clock-names: must be "SATA0_PCLK", "SATA1_PCLK"
> +- syscon: a phandle to the global Gemini system controller
> +- cortina,gemini-ata-muxmode: tell the desired multiplexing mode for
> + the ATA controller and SATA bridges. Values 0..3:
> + Mode 0: ata0 master <-> sata0
> + ata1 master <-> sata1
> + ata0 slave interface brought out on IDE pads
> + Mode 1: ata0 master <-> sata0
> + ata1 master <-> sata1
> + ata1 slave interface brought out on IDE pads
> + Mode 2: ata1 master <-> sata1
> + ata1 slave <-> sata0
> + ata0 master and slave interfaces brought out
> + on IDE pads
> + Mode 3: ata0 master <-> sata0
> + ata1 slave <-> sata1
ata0 slave?
> + ata1 master and slave interfaces brought out
> + on IDE pads
> +
> +Optional boolean properties:
> +- cortina,gemini-enable-ide-pins: enables the PATA to IDE connection.
> + The muxmode setting decides whether ATA0 or ATA1 is brought out,
> + and whether master, slave or both interfaces get brought out.
> +- cortina,gemini-enable-sata-bridge: enables the PATA to SATA bridge
> + inside the Gemnini SoC. The Muxmode decides what PATA blocks will
> + be muxed out and how.
> +
> +Example:
> +
> +sata: sata@46000000 {
> + compatible = "cortina,gemini-sata-bridge";
> + reg = <0x46000000 0x100>;
> + resets = <&rcon 26>, <&rcon 27>;
> + reset-names = "sata0", "sata1";
> + clocks = <&gcc GEMINI_CLK_GATE_SATA0>,
> + <&gcc GEMINI_CLK_GATE_SATA1>;
> + clock-names = "SATA0_PCLK", "SATA1_PCLK";
> + syscon = <&syscon>;
> + cortina,gemini-ata-muxmode = <3>;
> + cortina,gemini-enable-ide-pins;
> + cortina,gemini-enable-sata-bridge;
> +};
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
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