| 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; |
| }; |