aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt')
-rw-r--r--Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt67
1 files changed, 0 insertions, 67 deletions
diff --git a/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt b/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt
deleted file mode 100644
index c3a1b37c4c35..000000000000
--- a/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt
+++ /dev/null
@@ -1,67 +0,0 @@
-Microchip PIC32 Interrupt Controller
-====================================
-
-The Microchip PIC32 contains an Enhanced Vectored Interrupt Controller (EVIC).
-It handles all internal and external interrupts. This controller exists outside
-of the CPU and is the arbitrator of all interrupts (including interrupts from
-the CPU itself) before they are presented to the CPU.
-
-External interrupts have a software configurable edge polarity. Non external
-interrupts have a type and polarity that is determined by the source of the
-interrupt.
-
-Required properties
--------------------
-
-- compatible: Should be "microchip,pic32mzda-evic"
-- reg: Specifies physical base address and size of register range.
-- interrupt-controller: Identifies the node as an interrupt controller.
-- #interrupt cells: Specifies the number of cells used to encode an interrupt
- source connected to this controller. The value shall be 2 and interrupt
- descriptor shall have the following format:
-
- <hw_irq irq_type>
-
- hw_irq - represents the hardware interrupt number as in the data sheet.
- irq_type - is used to describe the type and polarity of an interrupt. For
- internal interrupts use IRQ_TYPE_EDGE_RISING for non persistent interrupts and
- IRQ_TYPE_LEVEL_HIGH for persistent interrupts. For external interrupts use
- IRQ_TYPE_EDGE_RISING or IRQ_TYPE_EDGE_FALLING to select the desired polarity.
-
-Optional properties
--------------------
-- microchip,external-irqs: u32 array of external interrupts with software
- polarity configuration. This array corresponds to the bits in the INTCON
- SFR.
-
-Example
--------
-
-evic: interrupt-controller@1f810000 {
- compatible = "microchip,pic32mzda-evic";
- interrupt-controller;
- #interrupt-cells = <2>;
- reg = <0x1f810000 0x1000>;
- microchip,external-irqs = <3 8 13 18 23>;
-};
-
-Each device/peripheral must request its interrupt line with the associated type
-and polarity.
-
-Internal interrupt DTS snippet
-------------------------------
-
-device@1f800000 {
- ...
- interrupts = <113 IRQ_TYPE_LEVEL_HIGH>;
- ...
-};
-
-External interrupt DTS snippet
-------------------------------
-
-device@1f800000 {
- ...
- interrupts = <3 IRQ_TYPE_EDGE_RISING>;
- ...
-};