This adds the irq crossbar device node. There is a IRQ crossbar device in the soc, which maps the irq requests from the peripherals to the mpu interrupt controller's inputs. The Peripheral irq requests are connected to only one crossbar input and the output of the crossbar is connected to only one controller's input line. This models the crossbar as an interrupt controller. This a cascaded irqchip where the peripheral interrupt lines are connected to the crossbar and the crossbar's outputs are in turn connected to the GIC. Signed-off-by: Sricharan R <r.sricharan@xxxxxx> --- arch/arm/boot/dts/dra7.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi index a5d9350..da977e1 100644 --- a/arch/arm/boot/dts/dra7.dtsi +++ b/arch/arm/boot/dts/dra7.dtsi @@ -84,6 +84,7 @@ #size-cells = <1>; ranges; ti,hwmods = "l3_main_1", "l3_main_2"; + interrupt-parent = <&crossbar_mpu>; counter32k: counter@4ae04000 { compatible = "ti,omap-counter32k"; @@ -491,5 +492,20 @@ dmas = <&sdma 70>, <&sdma 71>; dma-names = "tx0", "rx0"; }; + + crossbar_mpu: @4a020000 { + compatible = "crossbar-irqchip"; + interrupt-parent = <&gic>; + interrupt-controller; + #interrupt-cells = <3>; + reg = <0x4a002a48 0x130>; + max-crossbar-lines = <512>; + max-irqs = <160>; + reg-size = <2>; + irqs-reserved = <0 1 2 3 5 6 131 132 139 140>; + #address-cells = <1>; + #size-cells = <1>; + }; + }; }; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html