powerpc/dma/raidengine: add raidengine device

The RaidEngine is a new Freescale hardware that used for parity
computation offloading in RAID5/6.

This patch adds the device node in device tree and related binding
documentation.

Signed-off-by: Harninder Rai <harninder.rai@freescale.com>
Signed-off-by: Naveen Burmi <naveenburmi@freescale.com>
Signed-off-by: Xuelin Shi <b29237@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

3 files changed, 92 insertions, 0 deletions

diff --git a/arch/powerpc/boot/dts/fsl/p5020si-post.dtsi b/arch/powerpc/boot/dts/fsl/p5020si-post.dtsi
index 64b6abea8464..5d7205b7bb05 100644
--- a/arch/powerpc/boot/dts/fsl/p5020si-post.dtsi
+++ b/arch/powerpc/boot/dts/fsl/p5020si-post.dtsi
@@ -354,4 +354,5 @@
 /include/ "qoriq-sata2-0.dtsi"
 /include/ "qoriq-sata2-1.dtsi"
 /include/ "qoriq-sec4.2-0.dtsi"
+/include/ "qoriq-raid1.0-0.dtsi"
 };
diff --git a/arch/powerpc/boot/dts/fsl/p5020si-pre.dtsi b/arch/powerpc/boot/dts/fsl/p5020si-pre.dtsi
index 0a198b0a77e5..8df47fc45ab5 100644
--- a/arch/powerpc/boot/dts/fsl/p5020si-pre.dtsi
+++ b/arch/powerpc/boot/dts/fsl/p5020si-pre.dtsi
@@ -73,6 +73,12 @@
                 rtic_c = &rtic_c;
                 rtic_d = &rtic_d;
                 sec_mon = &sec_mon;
+
+                raideng = &raideng;
+                raideng_jr0 = &raideng_jr0;
+                raideng_jr1 = &raideng_jr1;
+                raideng_jr2 = &raideng_jr2;
+                raideng_jr3 = &raideng_jr3;
         };
 
         cpus {
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-raid1.0-0.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-raid1.0-0.dtsi
new file mode 100644
index 000000000000..8d2e8aa6cf8a
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/qoriq-raid1.0-0.dtsi
@@ -0,0 +1,85 @@
+/*
+ * QorIQ RAID 1.0 device tree stub [ controller @ offset 0x320000 ]
+ *
+ * Copyright 2012 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+raideng: raideng@320000 {
+        compatible = "fsl,raideng-v1.0";
+        #address-cells = <1>;
+        #size-cells = <1>;
+        reg = <0x320000 0x10000>;
+        ranges = <0 0x320000 0x10000>;
+
+        raideng_jq0@1000 {
+                compatible = "fsl,raideng-v1.0-job-queue";
+                #address-cells = <1>;
+                #size-cells = <1>;
+                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>;
+                };
+
+                raideng_jr1: jr@400 {
+                        compatible = "fsl,raideng-v1.0-job-ring", "fsl,raideng-v1.0-lp-ring";
+                        reg = <0x400 0x400>;
+                        interrupts = <140 2 0 0>;
+                        interrupt-parent = <&mpic>;
+                };
+        };
+
+        raideng_jq1@2000 {
+                compatible = "fsl,raideng-v1.0-job-queue";
+                #address-cells = <1>;
+                #size-cells = <1>;
+                reg = <0x2000 0x1000>;
+                ranges = <0x0 0x2000 0x1000>;
+
+                raideng_jr2: jr@0 {
+                        compatible = "fsl,raideng-v1.0-job-ring", "fsl,raideng-v1.0-hp-ring";
+                        reg = <0x0 0x400>;
+                        interrupts = <141 2 0 0>;
+                        interrupt-parent = <&mpic>;
+                };
+
+                raideng_jr3: jr@400 {
+                        compatible = "fsl,raideng-v1.0-job-ring", "fsl,raideng-v1.0-lp-ring";
+                        reg = <0x400 0x400>;
+                        interrupts = <142 2 0 0>;
+                        interrupt-parent = <&mpic>;
+                };
+        };
+};