arm: mach-mvebu: add documentation for new device tree bindings

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Lior Amsalem <alior@marvell.com>
Tested-by: Yehuda Yitschak <yehuday@marvell.com>
Tested-by: Lior Amsalem <alior@marvell.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
This commit is contained in:
Gregory CLEMENT 2012-06-01 18:33:17 +02:00 committed by Arnd Bergmann
parent 9ae6f740b4
commit 0d01b7a153
4 changed files with 75 additions and 0 deletions

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Marvell Armada 370 and Armada XP Interrupt Controller
-----------------------------------------------------
Required properties:
- compatible: Should be "marvell,mpic"
- interrupt-controller: Identifies the node as an interrupt controller.
- #interrupt-cells: The number of cells to define the interrupts. Should be 1.
The cell is the IRQ number
- reg: Should contain PMIC registers location and length. First pair
for the main interrupt registers, second pair for the per-CPU
interrupt registers
Example:
mpic: interrupt-controller@d0020000 {
compatible = "marvell,mpic";
#interrupt-cells = <1>;
#address-cells = <1>;
#size-cells = <1>;
interrupt-controller;
reg = <0xd0020000 0x1000>,
<0xd0021000 0x1000>;
};

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Marvell Armada 370 and Armada XP Global Timers
----------------------------------------------
Required properties:
- compatible: Should be "marvell,armada-370-xp-timer"
- interrupts: Should contain the list of Global Timer interrupts
- reg: Should contain the base address of the Global Timer registers
Optional properties:
- marvell,timer-25Mhz: Tells whether the Global timer supports the 25
Mhz fixed mode (available on Armada XP and not on Armada 370)

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Marvell Armada 370 and Armada XP Platforms Device Tree Bindings
---------------------------------------------------------------
Boards with a SoC of the Marvell Armada 370 and Armada XP families
shall have the following property:
Required root node property:
compatible: must contain "marvell,armada-370-xp"
In addition, boards using the Marvell Armada 370 SoC shall have the
following property:
Required root node property:
compatible: must contain "marvell,armada370"
In addition, boards using the Marvell Armada XP SoC shall have the
following property:
Required root node property:
compatible: must contain "marvell,armadaxp"

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MVEBU System Controller
-----------------------
MVEBU (Marvell SOCs: Armada 370/XP, Dove, mv78xx0, Kirkwood, Orion5x)
Required properties:
- compatible: one of:
- "marvell,orion-system-controller"
- "marvell,armada-370-xp-system-controller"
- reg: Should contain system controller registers location and length.
Example:
system-controller@d0018200 {
compatible = "marvell,armada-370-xp-system-controller";
reg = <0xd0018200 0x500>;
};