powerpc: Add T4 LAC device tree binding & defs

The Interlaken is a narrow, high speed channelized chip-to-chip interface. To
facilitate interoperability between a data path device and a look-aside
co-processor, the Interlaken Look-Aside protocol is defined for short
transaction-related transfers. Although based on the Interlaken protocol,
Interlaken Look-Aside is not directly compatible with Interlaken and can be
considered a different operation mode.

The Interlaken LA controller connects internal platform to Interlaken serial
interface. It accepts LA command through software portals, which are system
memory mapped 4KB spaces. The LA commands are then translated into the
Interlaken control words and data words, which are sent on TX side to TCAM
through SerDes lanes.

Signed-off-by: Joe Liccese <joe.liccese@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

2 files changed, 201 insertions, 0 deletions

diff --git a/arch/powerpc/boot/dts/fsl/interlaken-lac-portals.dtsi b/arch/powerpc/boot/dts/fsl/interlaken-lac-portals.dtsi
new file mode 100644
index 0000000..9cffccf
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/interlaken-lac-portals.dtsi
@@ -0,0 +1,156 @@
+/* T4240 Interlaken LAC Portal device tree stub with 24 portals.
+ *
+ * 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.
+ */
+
+#address-cells = <0x1>;
+#size-cells = <0x1>;
+compatible = "fsl,interlaken-lac-portals";
+
+lportal0: lac-portal@0 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x0 0x1000>;
+};
+
+lportal1: lac-portal@1000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x1000 0x1000>;
+};
+
+lportal2: lac-portal@2000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x2000 0x1000>;
+};
+
+lportal3: lac-portal@3000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x3000 0x1000>;
+};
+
+lportal4: lac-portal@4000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x4000 0x1000>;
+};
+
+lportal5: lac-portal@5000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x5000 0x1000>;
+};
+
+lportal6: lac-portal@6000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x6000 0x1000>;
+};
+
+lportal7: lac-portal@7000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x7000 0x1000>;
+};
+
+lportal8: lac-portal@8000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x8000 0x1000>;
+};
+
+lportal9: lac-portal@9000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x9000 0x1000>;
+};
+
+lportal10: lac-portal@A000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0xA000 0x1000>;
+};
+
+lportal11: lac-portal@B000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0xB000 0x1000>;
+};
+
+lportal12: lac-portal@C000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0xC000 0x1000>;
+};
+
+lportal13: lac-portal@D000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0xD000 0x1000>;
+};
+
+lportal14: lac-portal@E000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0xE000 0x1000>;
+};
+
+lportal15: lac-portal@F000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0xF000 0x1000>;
+};
+
+lportal16: lac-portal@10000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x10000 0x1000>;
+};
+
+lportal17: lac-portal@11000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x11000 0x1000>;
+};
+
+lportal18: lac-portal@1200 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x12000 0x1000>;
+};
+
+lportal19: lac-portal@13000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x13000 0x1000>;
+};
+
+lportal20: lac-portal@14000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x14000 0x1000>;
+};
+
+lportal21: lac-portal@15000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x15000 0x1000>;
+};
+
+lportal22: lac-portal@16000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x16000 0x1000>;
+};
+
+lportal23: lac-portal@17000 {
+	compatible = "fsl,interlaken-lac-portal-v1.0";
+	reg = <0x17000 0x1000>;
+};
diff --git a/arch/powerpc/boot/dts/fsl/interlaken-lac.dtsi b/arch/powerpc/boot/dts/fsl/interlaken-lac.dtsi
new file mode 100644
index 0000000..e820872
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/interlaken-lac.dtsi
@@ -0,0 +1,45 @@
+/*
+ * T4 Interlaken Look-aside Controller (LAC) device tree stub
+ *
+ * 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.
+ */
+
+lac: lac@229000 {
+	compatible = "fsl,interlaken-lac";
+	reg = <0x229000 0x1000>;
+	interrupts = <16 2 1 18>;
+};
+
+lac-hv@228000 {
+	compatible = "fsl,interlaken-lac-hv";
+	reg = <0x228000 0x1000>;
+	fsl,non-hv-node = <&lac>;
+};