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devicetree: create a separate binding description for sata_highbank 

The Calxeda sata_highbank driver has been adding its descriptions to the
ahci driver. Separate them properly. This patch only affects
documentation and has no functional component.

Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
hifive-unleashed-5.1
Mark Langsdorf 2013-08-14 15:40:11 -05:00 committed by Tejun Heo
parent 4a9b7f9f27
commit 91c2095021
2 changed files with 38 additions and 14 deletions
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18
Documentation/devicetree/bindings/ata/ahci-platform.txt
View File

@ -4,27 +4,17 @@ SATA nodes are defined to describe on-chip Serial ATA controllers.
Each SATA controller should have its own node.
Required properties:
- compatible : compatible list, contains "calxeda,hb-ahci" or "snps,spear-ahci"
- compatible : compatible list, contains "snps,spear-ahci"
- interrupts : <interrupt mapping for SATA IRQ>
- reg : <registers mapping>
Optional properties:
- 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.
- dma-coherent : Present if dma operations are coherent
Example:
sata@ffe08000 {
compatible = "calxeda,hb-ahci";
reg = <0xffe08000 0x1000>;
interrupts = <115>;
calxeda,port-phys = <&combophy5 0 &combophy0 0 &combophy0 1
&combophy0 2 &combophy0 3>;
compatible = "snps,spear-ahci";
reg = <0xffe08000 0x1000>;
interrupts = <115>;
};

34
Documentation/devicetree/bindings/ata/sata_highbank.txt 100644
View File

@ -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>;
};