Add initial SX3000b platform related documentation to document tree:
- Vendor prefix
- Platform binding documentation
- Interrupt Controller Unit binding documentation.
Signed-off-by: Amit Kama <amit.kama@xxxxxxxxxxx>
diff --git a/Documentation/devicetree/bindings/interrupt-controller/satixfy-icu.txt b/Documentation/devicetree/bindings/interrupt-controller/satixfy-icu.txt
index 0000000..1893393
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/satixfy-icu.txt
@@ -0,0 +1,47 @@
+Satixfy SX3000B Interrupt Controller Unit (ICU)
+
+The ICU routes HW interrupts from the inter-module fabric to the
+processor. For the MIPS interaptive, all interrupts are then routed
+to the GIC.
+
+Required properties:
+- compatible : Should be "satixfy,icu".
+- reg - must be present and equal <0x1D4D0000 0x1C0>
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : Specifies the number of cells needed to encode an
+ interrupt specifier. Should be 1 - the GIC interrupt number
+- interrupt-parent - Currently only the MIPS GIC is supported, so
+<&gic> must be specified as parent
+- interrupts : in interrupt parent form. For GIC it's
+<GIC_SHARED x IRQ_TYPE_EDGE_RISING> where x is the interrupt number
+allocated for ICU in GIC.
+
+
+
+
+
+Example:
+
+ icu: interrupt-controller@1d4d0000 {
+ compatible = "sx,icu";
+ reg = <0x1D4D0000 0x1C0>;
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SHARED 25 IRQ_TYPE_EDGE_RISING>;
+ };
+
+ uart0: uart@1D4D09C0 {
+ compatible = "ns16550a";
+ reg = <0x1D4D09C0 0x100>;
+
+ interrupt-parent = <&icu>;
+ interrupts = <3>;
+
+ clock-frequency = <270000000>;
+
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ };
diff --git a/Documentation/devicetree/bindings/mips/satixfy/sx3000b.txt b/Documentation/devicetree/bindings/mips/satixfy/sx3000b.txt
index 0000000..7cae67b
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/satixfy/sx3000b.txt
@@ -0,0 +1,37 @@
+Satixfy SX3000b SoC
+=========================
+
+Required properties:
+--------------------
+ - compatible: Must include "satixfy,sx3000".
+
+CPU nodes:
+----------
+A "cpus" node is required. Required properties:
+ - #address-cells: Must be 1.
+ - #size-cells: Must be 0.
+A CPU sub-node is also required for at least CPU 0. Since the topology may
+be probed via CPS, it is not necessary to specify secondary CPUs. Required
+properties:
+ - device_type: Must be "cpu".
+ - compatible: Must be "mti,interaptiv".
+ - reg: CPU number.
+ - clocks: Must include the CPU clock. See ../../clock/clock-bindings.txt for
+ details on clock bindings.
+Example:
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "mti,interaptiv";
+ clocks = <&ext>;
+ reg = <0>;
+ };
+ };
+
+Interrupt controllers:
+----------------------
+Two nodes are required:
+ - mips,gic - MIPS Global Interrupt Controller - see Documentation/devicetree/bindings/interrupt-controller/mips-gic.txt
+ - satixfy,icu - SX3000b SoC Interrupt Controller Unit - see Documentation/devicetree/bindings/interrupt-controller/satixfy-icu.txt
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index ec0bfb9..76819dd
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -261,6 +261,7 @@ rockchip Fuzhou Rockchip Electronics Co., Ltd
samsung Samsung Semiconductor
samtec Samtec/Softing company
sandisk Sandisk Corporation
+satixfy Satixfy Technologies Ltd
sbs Smart Battery System
schindler Schindler
seagate Seagate Technology PLC
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