Commit-ID: 5e27a314a11f7fa53795282eea59a024fd3020ba
Gitweb: https://git.kernel.org/tip/5e27a314a11f7fa53795282eea59a024fd3020ba
Author: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
AuthorDate: Mon, 27 May 2019 14:17:10 +0200
Committer: Marc Zyngier <marc.zyngier@xxxxxxx>
CommitDate: Wed, 29 May 2019 10:42:25 +0100
dt-bindings: interrupt-controller: Add Renesas RZ/A1 Interrupt Controller
Add DT bindings for the Renesas RZ/A1 Interrupt Controller.
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
---
.../interrupt-controller/renesas,rza1-irqc.txt | 43 ++++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,rza1-irqc.txt b/Documentation/devicetree/bindings/interrupt-controller/renesas,rza1-irqc.txt
new file mode 100644
index 000000000000..727b7e4cd6e0
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,rza1-irqc.txt
@@ -0,0 +1,43 @@
+DT bindings for the Renesas RZ/A1 Interrupt Controller
+
+The RZ/A1 Interrupt Controller is a front-end for the GIC found on Renesas
+RZ/A1 and RZ/A2 SoCs:
+ - IRQ sense select for 8 external interrupts, 1:1-mapped to 8 GIC SPI
+ interrupts,
+ - NMI edge select.
+
+Required properties:
+ - compatible: Must be "renesas,<soctype>-irqc", and "renesas,rza1-irqc" as
+ fallback.
+ Examples with soctypes are:
+ - "renesas,r7s72100-irqc" (RZ/A1H)
+ - "renesas,r7s9210-irqc" (RZ/A2M)
+ - #interrupt-cells: Must be 2 (an interrupt index and flags, as defined
+ in interrupts.txt in this directory)
+ - #address-cells: Must be zero
+ - interrupt-controller: Marks the device as an interrupt controller
+ - reg: Base address and length of the memory resource used by the interrupt
+ controller
+ - interrupt-map: Specifies the mapping from external interrupts to GIC
+ interrupts
+ - interrupt-map-mask: Must be <7 0>
+
+Example:
+
+ irqc: interrupt-controller@fcfef800 {
+ compatible = "renesas,r7s72100-irqc", "renesas,rza1-irqc";
+ #interrupt-cells = <2>;
+ #address-cells = <0>;
+ interrupt-controller;
+ reg = <0xfcfef800 0x6>;
+ interrupt-map =
+ <0 0 &gic GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+ <1 0 &gic GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+ <2 0 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+ <3 0 &gic GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+ <4 0 &gic GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <5 0 &gic GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+ <6 0 &gic GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <7 0 &gic GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-map-mask = <7 0>;
+ };
|