Documentation: bindings: decouple juno specific details from generic binding

A small area of SRAM is reserved for SCPI communication between application

processors and SCP.

Required properties:

- compatible : should be "arm,juno-sram-ns" for Non-secure SRAM on Juno

The rest of the properties should follow the generic mmio-sram description

found in ../../sram/sram.txt

The properties should follow the generic mmio-sram description found in [3]

Each sub-node represents the reserved area for SCPI.

Required sub-node properties:

- reg : The base offset and size of the reserved area with the SRAM

- compatible : should be "arm,juno-scp-shmem" for Non-secure SRAM based

	       shared memory on Juno platforms

- compatible : should be "arm,scp-shmem" for Non-secure SRAM based

	       shared memory

Sensor bindings for the sensors based on SCPI Message Protocol

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

- #thermal-sensor-cells: should be set to 1. This property follows the

			 thermal device tree bindings[2].

			 Valid cell values are raw identifiers (Sensor

			 ID) as used by the firmware. Refer to

			 platform documentation for your

			 implementation for the IDs to use. For Juno

			 R0 and Juno R1 refer to [3].

			 Valid cell values are raw identifiers (Sensor ID)

			 as used by the firmware. Refer to  platform details

			 for your implementation for the IDs to use.

Power domain bindings for the power domains based on SCPI Message Protocol

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

[0] http://infocenter.arm.com/help/topic/com.arm.doc.dui0922b/index.html

[1] Documentation/devicetree/bindings/clock/clock-bindings.txt

[2] Documentation/devicetree/bindings/thermal/thermal.txt

[3] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0922b/apas03s22.html

[3] Documentation/devicetree/bindings/sram/sram.txt

[4] Documentation/devicetree/bindings/power/power_domain.txt

Example:

System Control and Power Interface (SCPI) Message Protocol

(in addition to the standard binding in [0])

Juno SRAM and Shared Memory for SCPI

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

Required properties:

- compatible : should be "arm,juno-sram-ns" for Non-secure SRAM

Each sub-node represents the reserved area for SCPI.

Required sub-node properties:

- reg : The base offset and size of the reserved area with the SRAM

- compatible : should be "arm,juno-scp-shmem" for Non-secure SRAM based

	       shared memory on Juno platforms

Sensor bindings for the sensors based on SCPI Message Protocol

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

Required properties:

- compatible : should be "arm,scpi-sensors".

- #thermal-sensor-cells: should be set to 1.

			 For Juno R0 and Juno R1 refer to [1] for the

			 sensor identifiers

[0] Documentation/devicetree/bindings/arm/arm,scpi.txt

[1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0922b/apas03s22.html