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Diffstat (limited to 'Documentation/devicetree/bindings/interrupt-controller/brcm,bcm6345-l1-intc.yaml')
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diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm6345-l1-intc.yaml b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm6345-l1-intc.yaml new file mode 100644 index 000000000000..ca6a2ff43acd --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm6345-l1-intc.yaml @@ -0,0 +1,81 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interrupt-controller/brcm,bcm6345-l1-intc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom BCM6345-style Level 1 interrupt controller + +maintainers: + - Simon Arlott <simon@octiron.net> + +description: > + This block is a first level interrupt controller that is typically connected + directly to one of the HW INT lines on each CPU. + + Key elements of the hardware design include: + + - 32, 64 or 128 incoming level IRQ lines + + - Most onchip peripherals are wired directly to an L1 input + + - A separate instance of the register set for each CPU, allowing individual + peripheral IRQs to be routed to any CPU + + - Contains one or more enable/status word pairs per CPU + + - No atomic set/clear operations + + - No polarity/level/edge settings + + - No FIFO or priority encoder logic; software is expected to read all + 2-4 status words to determine which IRQs are pending + + If multiple reg ranges and interrupt-parent entries are present on an SMP + system, the driver will allow IRQ SMP affinity to be set up through the + /proc/irq/ interface. In the simplest possible configuration, only one + reg range and one interrupt-parent is needed. + + The driver operates in native CPU endian by default, there is no support for + specifying an alternative endianness. + +properties: + compatible: + const: brcm,bcm6345-l1-intc + + reg: + description: One entry per CPU core + minItems: 1 + maxItems: 2 + + interrupt-controller: true + + "#interrupt-cells": + const: 1 + + interrupts: + description: One entry per CPU core + minItems: 1 + maxItems: 2 + +required: + - compatible + - reg + - interrupt-controller + - '#interrupt-cells' + - interrupts + +additionalProperties: false + +examples: + - | + interrupt-controller@10000000 { + compatible = "brcm,bcm6345-l1-intc"; + reg = <0x10000020 0x20>, + <0x10000040 0x20>; + + interrupt-controller; + #interrupt-cells = <1>; + + interrupts = <2>, <3>; + }; |