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author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2014-11-21 16:59:58 +0100 |
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committer | Jason Cooper <jason@lakedaemon.net> | 2014-11-22 01:03:57 +0000 |
commit | e92293a2a7edc68a37ee124b6665ca240fb2ce07 (patch) | |
tree | f4be76797eb571802add42249e4afe669214552a /Documentation/devicetree/bindings/memory-controllers | |
parent | f114040e3ea6e07372334ade75d1ee0775c355e1 (diff) | |
download | linux-stable-e92293a2a7edc68a37ee124b6665ca240fb2ce07.tar.gz linux-stable-e92293a2a7edc68a37ee124b6665ca240fb2ce07.tar.bz2 linux-stable-e92293a2a7edc68a37ee124b6665ca240fb2ce07.zip |
Documentation: dt-bindings: minimal documentation for MVEBU SDRAM controller
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 <thomas.petazzoni@free-electrons.com>
Cc: devicetree@vger.kernel.org
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Link: https://lkml.kernel.org/r/1416585613-2113-2-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'Documentation/devicetree/bindings/memory-controllers')
-rw-r--r-- | Documentation/devicetree/bindings/memory-controllers/mvebu-sdram-controller.txt | 21 |
1 files changed, 21 insertions, 0 deletions
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 000000000000..89657d1d4cd4 --- /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@1400 { + compatible = "marvell,armada-xp-sdram-controller"; + reg = <0x1400 0x500>; +}; |