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author | Martin Blumenstingl <martin.blumenstingl@googlemail.com> | 2017-09-23 16:14:01 +0200 |
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committer | Kevin Hilman <khilman@baylibre.com> | 2017-10-06 15:36:37 -0700 |
commit | aee2828ccb3444ad1551e8528a868ab49ef447de (patch) | |
tree | fd9cce29498820d5bc234b8fce761faf1fe4c2c1 /Documentation/devicetree/bindings/arm/amlogic/assist.txt | |
parent | 291f45dd6da5fa6c9a51e5401c1d0af4d549bdee (diff) | |
download | op-kernel-dev-aee2828ccb3444ad1551e8528a868ab49ef447de.zip op-kernel-dev-aee2828ccb3444ad1551e8528a868ab49ef447de.tar.gz |
dt-bindings: Amlogic: add documentation for the SoC info register areas
There are three register areas which contain information about the SoC
version and revision:
- the assist registers contain the SoC's "major version" which encodes
the SoC generation and part number. this is available on Meson6,
Meson8 and Meson8b SoCs.
- the bootrom register contains at least the SoCs "misc version". this
is avilable on Meson6, Meson8 and Meson8b
- the analog top registers contain information about the SoC revision.
this is only available on Meson8 and Meson8b
Not much else is currently known about these registers.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Diffstat (limited to 'Documentation/devicetree/bindings/arm/amlogic/assist.txt')
-rw-r--r-- | Documentation/devicetree/bindings/arm/amlogic/assist.txt | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/amlogic/assist.txt b/Documentation/devicetree/bindings/arm/amlogic/assist.txt new file mode 100644 index 0000000..7656812 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/amlogic/assist.txt @@ -0,0 +1,17 @@ +Amlogic Meson6/Meson8/Meson8b assist registers: +----------------------------------------------- + +The assist registers contain basic information about the SoC, +for example the encoded SoC part number. + +Required properties: +- reg: the register range of the assist registers +- compatible: should be "amlogic,meson-mx-assist" along with "syscon" + + +Example: + + assist: assist@7c00 { + compatible = "amlogic,meson-mx-assist", "syscon"; + reg = <0x7c00 0x200>; + }; |