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Diffstat (limited to 'Documentation/devicetree/bindings/ata/sata_highbank.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/ata/sata_highbank.txt | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/ata/sata_highbank.txt b/Documentation/devicetree/bindings/ata/sata_highbank.txt new file mode 100644 index 000000000000..e7a6f2864f8b --- /dev/null +++ b/Documentation/devicetree/bindings/ata/sata_highbank.txt @@ -0,0 +1,34 @@ +* Calxeda AHCI SATA Controller + +SATA nodes are defined to describe on-chip Serial ATA controllers. +The Calxeda SATA controller mostly conforms to the AHCI interface +with some special extensions to add functionality. +Each SATA controller should have its own node. + +Required properties: +- compatible : compatible list, contains "calxeda,hb-ahci" +- interrupts : <interrupt mapping for SATA IRQ> +- reg : <registers mapping> + +Optional properties: +- dma-coherent : Present if dma operations are coherent +- calxeda,port-phys : phandle-combophy and lane assignment, which maps each + SATA port to a combophy and a lane within that + combophy +- calxeda,sgpio-gpio: phandle-gpio bank, bit offset, and default on or off, + which indicates that the driver supports SGPIO + indicator lights using the indicated GPIOs +- calxeda,led-order : a u32 array that map port numbers to offsets within the + SGPIO bitstream. + +Example: + sata@ffe08000 { + compatible = "calxeda,hb-ahci"; + reg = <0xffe08000 0x1000>; + interrupts = <115>; + dma-coherent; + calxeda,port-phys = <&combophy5 0 &combophy0 0 &combophy0 1 + &combophy0 2 &combophy0 3>; + calxeda,sgpio-gpio =<&gpioh 5 1 &gpioh 6 1 &gpioh 7 1>; + calxeda,led-order = <4 0 1 2 3>; + }; |