powerpc: Add T4 LAC device tree binding & defs

===============================================================================

Freescale Interlaken Look-Aside Controller Device Bindings

Copyright 2012 Freescale Semiconductor Inc.

CONTENTS

  - Interlaken Look-Aside Controller (LAC) Node

  - Example LAC Node

  - Interlaken Look-Aside Controller (LAC) Software Portal Node

  - Interlaken Look-Aside Controller (LAC) Software Portal Child Nodes

  - Example LAC SWP Node with Child Nodes

==============================================================================

Interlaken Look-Aside Controller (LAC) Node

DESCRIPTION

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.

There are two 4KiB spaces defined within the LAC global register memory map.

There is a full register set at 0x0000-0x0FFF (also known as the "hypervisor"

version), and a subset at 0x1000-0x1FFF.  The former is a superset of the

latter, and includes certain registers that should not be accessible to

partitioned software.  Separate nodes are used for each region, with a phandle

linking the hypervisor node to the normal operating node.

PROPERTIES

  - compatible

	Usage: required

	Value type: <string>

	Definition: Must include "fsl,interlaken-lac". This represents only

		those LAC CCSR registers not protected in partitioned

		software. The version of the device is determined by the LAC

		IP Block Revision Register (IPBRR0) at offset 0x0BF8.

		Table of correspondences between IPBRR0 values and example

		chips:

			Value		Device

			-----------	-------

			0x02000100	T4240

		The Hypervisor node has a different compatible. It must include

		"fsl,interlaken-lac-hv". This node represents the protected

		LAC register space and is required except inside a partition

		where access to the hypervisor node is to be denied.

  - fsl,non-hv-node

	Usage: required in "fsl,interlaken-lac-hv"

	Value type: <phandle>

	Definition: Points to the non-protected LAC CCSR mapped register space

		node.

  - reg

	Usage: required

	Value type: <prop-encoded-array>

	Definition: A standard property. The first resource represents the

		Interlaken LAC configuration registers.

  - interrupts:

	Usage: required in non-hv node only

	Value type: <prop-encoded-array>

	Definition: Interrupt mapping for Interlaken LAC error IRQ.

EXAMPLE

	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>;

	};

===============================================================================

Interlaken Look-Aside Controller (LAC) Software Portal Container Node

DESCRIPTION

The Interlaken Look-Aside Controller (LAC) utilizes Software Portals to accept

Interlaken Look-Aside (ILA) commands. The Interlaken LAC software portal

memory map occupies 128KB of memory space. The software portal memory space is

intended to be cache-enabled. WIMG for each software space is required to be

0010 if stashing is enabled; otherwise, WIMG can be 0000 or 0010.

PROPERTIES

  - #address-cells

	Usage: required

	Value type: <u32>

	Definition: A standard property. Must have a value of 1.

  - #size-cells

	Usage: required

	Value type: <u32>

	Definition: A standard property. Must have a value of 1.

  - compatible

	Usage: required

	Value type: <string>

	Definition: Must include "fsl,interlaken-lac-portals"

  - ranges

	Usage: required

	Value type: <prop-encoded-array>

	Definition: A standard property. Specifies the address and length

		of the LAC portal memory space.

===============================================================================

Interlaken Look-Aside Controller (LAC) Software Portals Child Nodes

DESCRIPTION

There are up to 24 available software portals with each software portal

requiring 4KB of consecutive memory within the software portal memory mapped

space.

PROPERTIES

  - compatible

	Usage: required

	Value type: <string>

	Definition: Must include "fsl,interlaken-lac-portal-vX.Y" where X is

		the Major version (IP_MJ) found in the LAC IP Block Revision

		Register (IPBRR0), at offset 0x0BF8, and Y is the Minor version

		(IP_MN).

		Table of correspondences between version values and example chips:

		    Value	Device

		    ------	-------

		      1.0	T4240

  - reg

	Usage: required

	Value type: <prop-encoded-array>

	Definition: A standard property.  The first resource represents the

		Interlaken LAC software portal registers.

  - fsl,liodn

	Value type: <u32>

	Definition: The logical I/O device number (LIODN) for this device.  The

		LIODN is a number expressed by this device and used to perform

		look-ups in the IOMMU (PAMU) address table when performing

		DMAs. This property is automatically added by u-boot.

===============================================================================

EXAMPLE

lac-portals {

	#address-cells = <0x1>;

	#size-cells = <0x1>;

	compatible = "fsl,interlaken-lac-portals";

	ranges = <0x0 0xf 0xf4400000 0x20000>;

	lportal0: lac-portal@0 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x204>;

		reg = <0x0 0x1000>;

	};

	lportal1: lac-portal@1000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x205>;

		reg = <0x1000 0x1000>;

	};

	lportal2: lac-portal@2000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x206>;

		reg = <0x2000 0x1000>;

	};

	lportal3: lac-portal@3000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x207>;

		reg = <0x3000 0x1000>;

	};

	lportal4: lac-portal@4000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x208>;

		reg = <0x4000 0x1000>;

	};

	lportal5: lac-portal@5000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x209>;

		reg = <0x5000 0x1000>;

	};

	lportal6: lac-portal@6000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x20A>;

		reg = <0x6000 0x1000>;

	};

	lportal7: lac-portal@7000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x20B>;

		reg = <0x7000 0x1000>;

	};

	lportal8: lac-portal@8000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x20C>;

		reg = <0x8000 0x1000>;

	};

	lportal9: lac-portal@9000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x20D>;

		reg = <0x9000 0x1000>;

	};

	lportal10: lac-portal@A000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x20E>;

		reg = <0xA000 0x1000>;

	};

	lportal11: lac-portal@B000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x20F>;

		reg = <0xB000 0x1000>;

	};

	lportal12: lac-portal@C000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x210>;

		reg = <0xC000 0x1000>;

	};

	lportal13: lac-portal@D000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x211>;

		reg = <0xD000 0x1000>;

	};

	lportal14: lac-portal@E000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x212>;

		reg = <0xE000 0x1000>;

	};

	lportal15: lac-portal@F000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x213>;

		reg = <0xF000 0x1000>;

	};

	lportal16: lac-portal@10000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x214>;

		reg = <0x10000 0x1000>;

	};

	lportal17: lac-portal@11000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x215>;

		reg = <0x11000 0x1000>;

	};

	lportal8: lac-portal@1200 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x216>;

		reg = <0x12000 0x1000>;

	};

	lportal19: lac-portal@13000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x217>;

		reg = <0x13000 0x1000>;

	};

	lportal20: lac-portal@14000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x218>;

		reg = <0x14000 0x1000>;

	};

	lportal21: lac-portal@15000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x219>;

		reg = <0x15000 0x1000>;

	};

	lportal22: lac-portal@16000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x21A>;

		reg = <0x16000 0x1000>;

	};

	lportal23: lac-portal@17000 {

		compatible = "fsl,interlaken-lac-portal-v1.0";

		fsl,liodn = <0x21B>;

		reg = <0x17000 0x1000>;

	};

};

/* 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>;

};

/*

 * 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>;

};