Am Montag, 27. Oktober 2014, 20:37:27 schrieb Daniel Kurtz: > Add binding documentation for Rockchip IOMMU. > > Signed-off-by: Daniel Kurtz <[email protected]> > Signed-off-by: Simon Xue <[email protected]>
Reviewed-by: Heiko Stuebner <[email protected]> > --- > .../devicetree/bindings/iommu/rockchip,iommu.txt | 26 > ++++++++++++++++++++++ 1 file changed, 26 insertions(+) > create mode 100644 > Documentation/devicetree/bindings/iommu/rockchip,iommu.txt > > diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt > b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt new file mode > 100644 > index 0000000..9a55ac3 > --- /dev/null > +++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt > @@ -0,0 +1,26 @@ > +Rockchip IOMMU > +============== > + > +A Rockchip DRM iommu translates io virtual addresses to physical addresses > for +its master device. Each slave device is bound to a single master > device, and +shares its clocks, power domain and irq. > + > +Required properties: > +- compatible : Should be "rockchip,iommu" > +- reg : Address space for the configuration registers > +- interrupts : Interrupt specifier for the IOMMU instance > +- interrupt-names : Interrupt name for the IOMMU instance > +- #iommu-cells : Should be <0>. This indicates the iommu is a > + "single-master" device, and needs no additional > information + to associate with its master device. See: > + Documentation/devicetree/bindings/iommu/iommu.txt > + > +Example: > + > + vopl_mmu: iommu@ff940300 { > + compatible = "rockchip,iommu"; > + reg = <0xff940300 0x100>; > + interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>; > + interrupt-names = "vopl_mmu"; > + #iommu-cells = <0>; > + }; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
