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dt-bindings: chosen: Document linux,initrd-{start,end}

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These properties have been in use for a very long time (at least since
2005), but were never documented in chosen.txt.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Jonathan Neuschäfer 2017-12-09 16:33:02 +01:00 committed by Rob Herring
parent aa199b7466
commit 271ba36e7b
1 changed files with 15 additions and 0 deletions
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15
Documentation/devicetree/bindings/chosen.txt
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@ -120,3 +120,18 @@ e.g.
While this property does not represent a real hardware, the address
and the size are expressed in #address-cells and #size-cells,
respectively, of the root node.
linux,initrd-start and linux,initrd-end
---------------------------------------
These properties hold the physical start and end address of an initrd that's
loaded by the bootloader. Note that linux,initrd-start is inclusive, but
linux,initrd-end is exclusive.
e.g.
/ {
chosen {
linux,initrd-start = <0x82000000>;
linux,initrd-end = <0x82800000>;
};
};