Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / powerpc / fsl / raideng.txt

diff --git a/kernel/Documentation/devicetree/bindings/powerpc/fsl/raideng.txt b/kernel/Documentation/devicetree/bindings/powerpc/fsl/raideng.txt
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+* Freescale 85xx RAID Engine nodes
+
+RAID Engine nodes are defined to describe on-chip RAID accelerators.  Each RAID
+Engine should have a separate node.
+
+Supported chips:
+P5020, P5040
+
+Required properties:
+
+- compatible:  Should contain "fsl,raideng-v1.0" as the value
+               This identifies RAID Engine block. 1 in 1.0 represents
+               major number whereas 0 represents minor number. The
+               version matches the hardware IP version.
+- reg:         offset and length of the register set for the device
+- ranges:      standard ranges property specifying the translation
+               between child address space and parent address space
+
+Example:
+       /* P5020 */
+       raideng: raideng@320000 {
+               compatible = "fsl,raideng-v1.0";
+               #address-cells = <1>;
+               #size-cells = <1>;
+               reg     = <0x320000 0x10000>;
+               ranges  = <0 0x320000 0x10000>;
+       };
+
+
+There must be a sub-node for each job queue present in RAID Engine
+This node must be a sub-node of the main RAID Engine node
+
+- compatible:  Should contain "fsl,raideng-v1.0-job-queue" as the value
+               This identifies the job queue interface
+- reg:         offset and length of the register set for job queue
+- ranges:      standard ranges property specifying the translation
+               between child address space and parent address space
+
+Example:
+       /* P5020 */
+       raideng_jq0@1000 {
+               compatible = "fsl,raideng-v1.0-job-queue";
+               reg        = <0x1000 0x1000>;
+               ranges     = <0x0 0x1000 0x1000>;
+       };
+
+
+There must be a sub-node for each job ring present in RAID Engine
+This node must be a sub-node of job queue node
+
+- compatible:  Must contain "fsl,raideng-v1.0-job-ring" as the value
+               This identifies job ring. Should contain either
+               "fsl,raideng-v1.0-hp-ring" or "fsl,raideng-v1.0-lp-ring"
+               depending upon whether ring has high or low priority
+- reg:         offset and length of the register set for job ring
+- interrupts:  interrupt mapping for job ring IRQ
+
+Optional property:
+
+- fsl,liodn:   Specifies the LIODN to be used for Job Ring. This
+               property is normally set by firmware. Value
+               is of 12-bits which is the LIODN number for this JR.
+               This property is used by the IOMMU (PAMU) to distinquish
+               transactions from this JR and than be able to do address
+               translation & protection accordingly.
+
+Example:
+       /* P5020 */
+       raideng_jq0@1000 {
+               compatible = "fsl,raideng-v1.0-job-queue";
+               reg        = <0x1000 0x1000>;
+               ranges     = <0x0 0x1000 0x1000>;
+
+               raideng_jr0: jr@0 {
+                       compatible = "fsl,raideng-v1.0-job-ring", "fsl,raideng-v1.0-hp-ring";
+                       reg        = <0x0 0x400>;
+                       interrupts = <139 2 0 0>;
+                       interrupt-parent = <&mpic>;
+                       fsl,liodn = <0x41>;
+               };
+       };