Documentation: devicetree: add pxa3xx compatible and syscon property

Document the new pxa3xx_nand driver compatible string for A7k/A8k SoCs
that need to access system controller registers in order to enable the
NAND controller through the use of a phandle pointed to by the
'marvell,system-controller' property.

Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>

diff --git a/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt b/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt
index d9b655f..d4ee4da 100644 (file)
--- a/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt
@@ -5,9 +5,13 @@ Required properties:
  - compatible:         Should be set to one of the following:
                        marvell,pxa3xx-nand
                        marvell,armada370-nand
+                       marvell,armada-8k-nand
  - reg:                The register base for the controller
  - interrupts:         The interrupt to map
  - #address-cells:     Set to <1> if the node includes partitions
+ - marvell,system-controller: Set to retrieve the syscon node that handles
+                       NAND controller related registers (only required
+                       with marvell,armada-8k-nand compatible).
 
 Optional properties: