| Message ID | 1464207511-11786-3-git-send-email-carlo@caione.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Carlo, On 05/25/2016 10:18 PM, Carlo Caione wrote: > From: Carlo Caione <carlo@endlessm.com> > > Add the binding documentation for the Amlogic secure monitor driver. > > Signed-off-by: Carlo Caione <carlo@endlessm.com> > --- > .../bindings/firmware/meson/meson_sm.txt | 42 ++++++++++++++++++++++ > 1 file changed, 42 insertions(+) > create mode 100644 Documentation/devicetree/bindings/firmware/meson/meson_sm.txt > > diff --git a/Documentation/devicetree/bindings/firmware/meson/meson_sm.txt b/Documentation/devicetree/bindings/firmware/meson/meson_sm.txt > new file mode 100644 > index 0000000..896758d > --- /dev/null > +++ b/Documentation/devicetree/bindings/firmware/meson/meson_sm.txt > @@ -0,0 +1,42 @@ > +* Amlogic Secure Monitor > + > +In the Amlogic SoCs the Secure Monitor code is used to provide access to the > +NVMEM, enable JTAG, set USB boot, etc... > + > +Required properties for the secure monitor node: > +- compatible: Should be "amlogic,meson-gxbb-sm" > + > +Example: > + > + #include <dt-bindings/firmware/meson-sm.h> > + > + ... > + > + firmware { > + compatible = "simple-bus"; > + > + sm: secure-monitor { > + compatible = "amlogic,meson-gxbb-sm"; > + }; > + }; > + > +Node of a device using the secure monitor must have a custom property to > +specify the SMC32 function ID the driver is going to use. > + > +Example of the node using the secure monitor: > + > + #include <dt-bindings/firmware/meson-sm.h> > + > + ... > + > + efuse: efuse { > + compatible = "amlogic,meson-gxbb-efuse"; > + secure-monitor = <&sm>; > + amlogic,sm-cmd-read-efuse = <SM_EFUSE_READ>; > + amlogic,sm-cmd-max-efuse = <SM_EFUSE_USER_MAX>; Same here, since the compatible is "gxbb" specific, there is no need for these properties, and so no need for the dt-bindings header. > + #address-cells = <1>; > + #size-cells = <1>; > + > + ... > + }; > + >
diff --git a/Documentation/devicetree/bindings/firmware/meson/meson_sm.txt b/Documentation/devicetree/bindings/firmware/meson/meson_sm.txt new file mode 100644 index 0000000..896758d --- /dev/null +++ b/Documentation/devicetree/bindings/firmware/meson/meson_sm.txt @@ -0,0 +1,42 @@ +* Amlogic Secure Monitor + +In the Amlogic SoCs the Secure Monitor code is used to provide access to the +NVMEM, enable JTAG, set USB boot, etc... + +Required properties for the secure monitor node: +- compatible: Should be "amlogic,meson-gxbb-sm" + +Example: + + #include <dt-bindings/firmware/meson-sm.h> + + ... + + firmware { + compatible = "simple-bus"; + + sm: secure-monitor { + compatible = "amlogic,meson-gxbb-sm"; + }; + }; + +Node of a device using the secure monitor must have a custom property to +specify the SMC32 function ID the driver is going to use. + +Example of the node using the secure monitor: + + #include <dt-bindings/firmware/meson-sm.h> + + ... + + efuse: efuse { + compatible = "amlogic,meson-gxbb-efuse"; + secure-monitor = <&sm>; + amlogic,sm-cmd-read-efuse = <SM_EFUSE_READ>; + amlogic,sm-cmd-max-efuse = <SM_EFUSE_USER_MAX>; + #address-cells = <1>; + #size-cells = <1>; + + ... + }; +