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authorVineet Gupta <vgupta@synopsys.com>2013-01-18 15:12:21 +0530
committerVineet Gupta <vgupta@synopsys.com>2013-02-15 23:15:57 +0530
commitabe11ddea1d759f9995a9a4636c28c9b40856ca8 (patch)
tree53085d131ecbe7a810f9feadcba571f49a2e9465 /Documentation/devicetree
parent450dd430bf45ab212a91acfb9bed2528d17f30cd (diff)
downloadblackbird-op-linux-abe11ddea1d759f9995a9a4636c28c9b40856ca8.tar.gz
blackbird-op-linux-abe11ddea1d759f9995a9a4636c28c9b40856ca8.zip
ARC: [plat-arcfpga]: Enabling DeviceTree for Angel4 board
* arc-uart platform device now populated dynamically, using of_platform_populate() - applies to any other device whatsoever. * uart in turn requires incore arc-intc to be also present in DT * A irq-domain needs to be instantiated for IRQ requests by DT probed device (e.g. arc-uart) TODO: switch over to linear irq domain once all devs have been transitioned to DT Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Arnd Bergmann <arnd@arndb.de>
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+* ARC700 incore Interrupt Controller
+
+ The core interrupt controller provides 32 prioritised interrupts (2 levels)
+ to ARC700 core.
+
+Properties:
+
+- compatible: "snps,arc700-intc"
+- interrupt-controller: This is an interrupt controller.
+- #interrupt-cells: Must be <1>.
+
+ Single Cell "interrupts" property of a device specifies the IRQ number
+ between 0 to 31
+
+ intc accessed via the special ARC AUX register interface, hence "reg" property
+ is not specified.
+
+Example:
+
+ intc: interrupt-controller {
+ compatible = "snps,arc700-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
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