[PATCHv2 01/16] Documentation: dt-bindings: minimal documentation for MVEBU SDRAM controller
From: Thomas Petazzoni <hidden>
Date: 2014-11-14 15:21:21
Also in:
linux-devicetree
Subsystem:
memory controller drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Krzysztof Kozlowski, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
The suspend/resume code for Armada XP has to modify certain registers of the SDRAM controller. Therefore, we need to define a Device Tree binding for this hardware block. Signed-off-by: Thomas Petazzoni <redacted> Cc: devicetree at vger.kernel.org Cc: Kumar Gala <redacted> Cc: Ian Campbell <redacted> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Rob Herring <robh+dt@kernel.org> Reviewed-by: Gregory CLEMENT <redacted> --- .../memory-controllers/mvebu-sdram-controller.txt | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 Documentation/devicetree/bindings/memory-controllers/mvebu-sdram-controller.txt
diff --git a/Documentation/devicetree/bindings/memory-controllers/mvebu-sdram-controller.txt b/Documentation/devicetree/bindings/memory-controllers/mvebu-sdram-controller.txt
new file mode 100644
index 0000000..89657d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/mvebu-sdram-controller.txt@@ -0,0 +1,21 @@ +Device Tree bindings for MVEBU SDRAM controllers + +The Marvell EBU SoCs all have a SDRAM controller. The SDRAM controller +differs from one SoC variant to another, but they also share a number +of commonalities. + +For now, this Device Tree binding documentation only documents the +Armada XP SDRAM controller. + +Required properties: + + - compatible: for Armada XP, "marvell,armada-xp-sdram-controller" + - reg: a resource specifier for the register space, which should + include all SDRAM controller registers as per the datasheet. + +Example: + +sdramc at 1400 { + compatible = "marvell,armada-xp-sdram-controller"; + reg = <0x1400 0x500>; +};
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2.1.0