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devicetree:bindings: add devicetree bindings for Freescale AHCI

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adds bindings for Freescale QorIQ AHCI SATA controller.

Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tang Yuantian 2015-09-07 16:23:15 +08:00 committed by Tejun Heo
parent fc4f370d77
commit 437dd8c3c2
1 changed files with 21 additions and 0 deletions
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Documentation/devicetree/bindings/ata/ahci-fsl-qoriq.txt Normal file
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Binding for Freescale QorIQ AHCI SATA Controller
Required properties:
- reg: Physical base address and size of the controller's register area.
- compatible: Compatibility string. Must be 'fsl,<chip>-ahci', where
chip could be ls1021a, ls2085a, ls1043a etc.
- clocks: Input clock specifier. Refer to common clock bindings.
- interrupts: Interrupt specifier. Refer to interrupt binding.
Optional properties:
- dma-coherent: Enable ACHI coherency DMA operation.
- reg-names: register area names when there are more then 1 regster area.
Examples:
sata@3200000 {
compatible = "fsl,ls1021a-ahci";
reg = <0x0 0x3200000 0x0 0x10000>;
interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&platform_clk 1>;
dma-coherent;
};