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-* 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.
-- calxeda,tx-atten : a u32 array that contains TX attenuation override
- codes, one per port. The upper 3 bytes are always
- 0 and thus ignored.
-- calxeda,pre-clocks : a u32 that indicates the number of additional clock
- cycles to transmit before sending an SGPIO pattern
-- calxeda,post-clocks: a u32 that indicates the number of additional clock
- cycles to transmit after sending an SGPIO pattern
-
-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>;
- calxeda,tx-atten = <0xff 22 0xff 0xff 23>;
- calxeda,pre-clocks = <10>;
- calxeda,post-clocks = <0>;
- };