Commit-ID: 815e7a31c3f7929f371da9c7e9ee91cfd52ef453 Gitweb: http://git.kernel.org/tip/815e7a31c3f7929f371da9c7e9ee91cfd52ef453 Author: Eric Anholt <e...@anholt.net> AuthorDate: Thu, 6 Aug 2015 16:00:32 -0700 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Thu, 20 Aug 2015 22:38:42 +0200
irqchip: Add documentation for the bcm2836 interrupt controller This is a new per-cpu root interrupt controller on the Raspberry Pi 2, which will chain to the bcm2835 interrupt controller for peripheral interrupts. Signed-off-by: Eric Anholt <e...@anholt.net> Acked-by: Stephen Warren <swar...@wwwdotorg.org> Cc: linux-rpi-ker...@lists.infradead.org Cc: Lee Jones <l...@kernel.org> Cc: Jason Cooper <ja...@lakedaemon.net> Cc: linux-arm-ker...@lists.infradead.org Link: http://lkml.kernel.org/r/1438902033-31477-4-git-send-email-e...@anholt.net Signed-off-by: Thomas Gleixner <t...@linutronix.de> --- .../interrupt-controller/brcm,bcm2836-l1-intc.txt | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.txt new file mode 100644 index 0000000..f320dcd --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.txt @@ -0,0 +1,37 @@ +BCM2836 per-CPU interrupt controller + +The BCM2836 has a per-cpu interrupt controller for the timer, PMU +events, and SMP IPIs. One of the CPUs may receive interrupts for the +peripheral (GPU) events, which chain to the BCM2835-style interrupt +controller. + +Required properties: + +- compatible: Should be "brcm,bcm2836-l1-intc" +- reg: Specifies base physical address and size of the + registers +- interrupt-controller: Identifies the node as an interrupt controller +- #interrupt-cells: Specifies the number of cells needed to encode an + interrupt source. The value shall be 1 + +Please refer to interrupts.txt in this directory for details of the common +Interrupt Controllers bindings used by client devices. + +The interrupt sources are as follows: + +0: CNTPSIRQ +1: CNTPNSIRQ +2: CNTHPIRQ +3: CNTVIRQ +8: GPU_FAST +9: PMU_FAST + +Example: + +local_intc: local_intc { + compatible = "brcm,bcm2836-l1-intc"; + reg = <0x40000000 0x100>; + interrupt-controller; + #interrupt-cells = <1>; + interrupt-parent = <&local_intc>; +}; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
