From e5fd91f1ef340da553f7a79da9540c3db711c937 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Tue, 8 Sep 2015 01:01:14 -0300
Subject: Linux-libre 4.2-gnu

---
 .../devicetree/bindings/arc/archs-idu-intc.txt     | 46 ++++++++++++++++++++++
 .../devicetree/bindings/arc/archs-intc.txt         | 22 +++++++++++
 Documentation/devicetree/bindings/arc/axs101.txt   |  7 ++++
 Documentation/devicetree/bindings/arc/axs103.txt   |  8 ++++
 4 files changed, 83 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arc/archs-idu-intc.txt
 create mode 100644 Documentation/devicetree/bindings/arc/archs-intc.txt
 create mode 100644 Documentation/devicetree/bindings/arc/axs101.txt
 create mode 100644 Documentation/devicetree/bindings/arc/axs103.txt

(limited to 'Documentation/devicetree/bindings/arc')

diff --git a/Documentation/devicetree/bindings/arc/archs-idu-intc.txt b/Documentation/devicetree/bindings/arc/archs-idu-intc.txt
new file mode 100644
index 000000000..0dcb7c7d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/arc/archs-idu-intc.txt
@@ -0,0 +1,46 @@
+* ARC-HS Interrupt Distribution Unit
+
+  This optional 2nd level interrupt controller can be used in SMP configurations for
+  dynamic IRQ routing, load balancing of common/external IRQs towards core intc.
+
+Properties:
+
+- compatible: "snps,archs-idu-intc"
+- interrupt-controller: This is an interrupt controller.
+- interrupt-parent: <reference to parent core intc>
+- #interrupt-cells: Must be <2>.
+- interrupts: <...> specifies the upstream core irqs
+
+  First cell specifies the "common" IRQ from peripheral to IDU
+  Second cell specifies the irq distribution mode to cores
+     0=Round Robin; 1=cpu0, 2=cpu1, 4=cpu2, 8=cpu3
+
+  intc accessed via the special ARC AUX register interface, hence "reg" property
+  is not specified.
+
+Example:
+	core_intc: core-interrupt-controller {
+		compatible = "snps,archs-intc";
+		interrupt-controller;
+		#interrupt-cells = <1>;
+	};
+
+	idu_intc: idu-interrupt-controller {
+		compatible = "snps,archs-idu-intc";
+		interrupt-controller;
+		interrupt-parent = <&core_intc>;
+
+		/*
+		 * <hwirq  distribution>
+		 * distribution: 0=RR; 1=cpu0, 2=cpu1, 4=cpu2, 8=cpu3
+		 */
+		#interrupt-cells = <2>;
+
+		/* upstream core irqs: downstream these are "COMMON" irq 0,1..  */
+		interrupts = <24 25 26 27 28 29 30 31>;
+	};
+
+	some_device: serial@c0fc1000 {
+		interrupt-parent = <&idu_intc>;
+		interrupts = <0 0>;	/* upstream idu IRQ #24, Round Robin */
+	};
diff --git a/Documentation/devicetree/bindings/arc/archs-intc.txt b/Documentation/devicetree/bindings/arc/archs-intc.txt
new file mode 100644
index 000000000..69f326d6a
--- /dev/null
+++ b/Documentation/devicetree/bindings/arc/archs-intc.txt
@@ -0,0 +1,22 @@
+* ARC-HS incore Interrupt Controller (Provided by cores implementing ARCv2 ISA)
+
+Properties:
+
+- compatible: "snps,archs-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 16 to 256
+
+  intc accessed via the special ARC AUX register interface, hence "reg" property
+  is not specified.
+
+Example:
+
+	intc: interrupt-controller {
+		compatible = "snps,archs-intc";
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		interrupts = <16 17 18 19 20 21 22 23 24 25>;
+	};
diff --git a/Documentation/devicetree/bindings/arc/axs101.txt b/Documentation/devicetree/bindings/arc/axs101.txt
new file mode 100644
index 000000000..48290d517
--- /dev/null
+++ b/Documentation/devicetree/bindings/arc/axs101.txt
@@ -0,0 +1,7 @@
+Synopsys DesignWare ARC Software Development Platforms Device Tree Bindings
+---------------------------------------------------------------------------
+
+SDP Main Board with an AXC001 CPU Card hoisting ARC700 core in silicon
+
+Required root node properties:
+    - compatible = "snps,axs101", "snps,arc-sdp";
diff --git a/Documentation/devicetree/bindings/arc/axs103.txt b/Documentation/devicetree/bindings/arc/axs103.txt
new file mode 100644
index 000000000..6eea862e7
--- /dev/null
+++ b/Documentation/devicetree/bindings/arc/axs103.txt
@@ -0,0 +1,8 @@
+Synopsys DesignWare ARC Software Development Platforms Device Tree Bindings
+---------------------------------------------------------------------------
+
+SDP Main Board with an AXC003 FPGA Card which can contain various flavours of
+HS38x cores.
+
+Required root node properties:
+    - compatible = "snps,axs103", "snps,arc-sdp";
-- 
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