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Diffstat (limited to 'Documentation/devicetree/bindings/interrupt-controller/marvell,sei.txt')
-rw-r--r-- | Documentation/devicetree/bindings/interrupt-controller/marvell,sei.txt | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/interrupt-controller/marvell,sei.txt b/Documentation/devicetree/bindings/interrupt-controller/marvell,sei.txt new file mode 100644 index 000000000..0beafed50 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/marvell,sei.txt @@ -0,0 +1,36 @@ +Marvell SEI (System Error Interrupt) Controller +----------------------------------------------- + +Marvell SEI (System Error Interrupt) controller is an interrupt +aggregator. It receives interrupts from several sources and aggregates +them to a single interrupt line (an SPI) on the parent interrupt +controller. + +This interrupt controller can handle up to 64 SEIs, a set comes from the +AP and is wired while a second set comes from the CPs by the mean of +MSIs. + +Required properties: + +- compatible: should be one of: + * "marvell,ap806-sei" +- reg: SEI registers location and length. +- interrupts: identifies the parent IRQ that will be triggered. +- #interrupt-cells: number of cells to define an SEI wired interrupt + coming from the AP, should be 1. The cell is the IRQ + number. +- interrupt-controller: identifies the node as an interrupt controller + for AP interrupts. +- msi-controller: identifies the node as an MSI controller for the CPs + interrupts. + +Example: + + sei: interrupt-controller@3f0200 { + compatible = "marvell,ap806-sei"; + reg = <0x3f0200 0x40>; + interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>; + #interrupt-cells = <1>; + interrupt-controller; + msi-controller; + }; |