[PATCH v2 2/4] dt-bindings: misc: Aspeed coprocessor interrupt controller
flat view
STALE3036d
From: benh@kernel.crashing.org (Benjamin Herrenschmidt)
Date: 2018-06-18 04:59:00
Also in:
linux-aspeed, linux-devicetree
Subsystem:
open firmware and flattened device tree bindings, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add the device-tree binding definition for the AST2400 and AST2500 coprocessor interrupt controller Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> --- .../devicetree/bindings/misc/aspeed,cvic.txt | 35 +++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/aspeed,cvic.txt
diff --git a/Documentation/devicetree/bindings/misc/aspeed,cvic.txt b/Documentation/devicetree/bindings/misc/aspeed,cvic.txt
new file mode 100644
index 000000000000..2562e2991e4d
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/aspeed,cvic.txt@@ -0,0 +1,35 @@ +* Aspeed AST2400 and AST2500 coprocessor interrupt controller + +This file describes the bindings for the interrupt controller present +in the AST2400 and AST2500 BMC SoCs which provides interrupt to the +ColdFire coprocessor. + +It is not a normal interrupt controller and it would be rather +inconvenient to create an interrupt tree for it as it somewhat shares +some of the same sources as the main ARM interrupt controller but with +different numbers. + +The AST2500 supports a SW generated interrupt + +Required properties: +- reg: address and length of the register for the device. +- compatible: "aspeed,cvic" and one of: + "aspeed,ast2400-cvic" + or + "aspeed,ast2500-cvic" + +- valid-sources: One cell, bitmap of supported sources for the implementation + +Optional properties; +- copro-sw-interrupts: List of interrupt numbers that can be used as + SW interrupts from the ARM to the coprocessor. + (AST2500 only) + +Example: + + cvic: copro-interrupt-controller at 1e6c2000 { + compatible = "aspeed,ast2500-cvic"; + valid-sources = <0xffffffff>; + copro-sw-interrupts = <1>; + reg = <0x1e6c2000 0x80>; + };
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2.17.1