| Message ID | 20180623210810.21232-5-david@lechnology.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Sat, Jun 23, 2018 at 04:08:06PM -0500, David Lechner wrote: > This adds a new binding for the TI Programmable Runtime Unit (PRU) > as a remoteproc device. > > Signed-off-by: David Lechner <david@lechnology.com> > --- > .../bindings/remoteproc/ti_pru_rproc.txt | 51 +++++++++++++++++++ > 1 file changed, 51 insertions(+) > create mode 100644 Documentation/devicetree/bindings/remoteproc/ti_pru_rproc.txt > > diff --git a/Documentation/devicetree/bindings/remoteproc/ti_pru_rproc.txt b/Documentation/devicetree/bindings/remoteproc/ti_pru_rproc.txt > new file mode 100644 > index 000000000000..0e80a8db46d0 > --- /dev/null > +++ b/Documentation/devicetree/bindings/remoteproc/ti_pru_rproc.txt > @@ -0,0 +1,51 @@ > +TI Programmable Realtime Unit (PRU) > +=================================== > + > +Some TI Sitara SoCs contain a Programmable Realtime Unit subsystem with two > +processor cores that can be used for hard-realtime tasks. > + > + > +Required properties: > +-------------------- > +The following are the mandatory properties: > + > +- compatible: Should be one of the following, > + "ti,da850-pru-rproc" for AM18xx/OMAPL138 SoCs > + "ti,am3352-pru-rproc" for AM355x SoCs > + > +- reg: Should contain the memory region for the PRUSS > + > +- interrupts: Should contain the interrupt number used to receive the > + virtualqueue kick interrupts from the PRU (i.e. > + PRU_EVTOUT0 and PRU_EVTOUT1) > + > +- interrupt-names Should contain "pru0-vq", "pru1-vq" > + > +Optional properties: > +-------------------- > + > +- power-domains: A phandle to the power domain that powers the PRUSS Only for da850? > + > +- ti,hwmods: Name of the hwmod associated to the PRUSS, which is > + typically "pruss" Only for am3352? typically? You should enumerate possible values. > + > +Example: > +-------- > + > + // AM18xx > + pru_rproc: cpu@30000 { cpu is reserved for cpu nodes. > + compatible = "ti,da850-pru-rproc"; > + reg = <0x30000 0x10000>; > + interrupts = <3>, <4>; > + interrupt-names = "pru0-vq", "pru1-vq"; > + power-domains = <&psc0 13>; > + }; > + > + // AM335x > + pru_rproc: cpu@4a300000 { > + compatible = "ti,am3352-pru-rproc"; > + reg = <0x4a300000 0x80000>; > + interrupts = <20>, <21>; > + interrupt-names = "pru0-vq", "pru1-vq"; > + ti,hwmods = "pruss"; > + }; Really need 2 examples? > -- > 2.17.1 > -- To unsubscribe from this list: send the line "unsubscribe linux-remoteproc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/remoteproc/ti_pru_rproc.txt b/Documentation/devicetree/bindings/remoteproc/ti_pru_rproc.txt new file mode 100644 index 000000000000..0e80a8db46d0 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/ti_pru_rproc.txt @@ -0,0 +1,51 @@ +TI Programmable Realtime Unit (PRU) +=================================== + +Some TI Sitara SoCs contain a Programmable Realtime Unit subsystem with two +processor cores that can be used for hard-realtime tasks. + + +Required properties: +-------------------- +The following are the mandatory properties: + +- compatible: Should be one of the following, + "ti,da850-pru-rproc" for AM18xx/OMAPL138 SoCs + "ti,am3352-pru-rproc" for AM355x SoCs + +- reg: Should contain the memory region for the PRUSS + +- interrupts: Should contain the interrupt number used to receive the + virtualqueue kick interrupts from the PRU (i.e. + PRU_EVTOUT0 and PRU_EVTOUT1) + +- interrupt-names Should contain "pru0-vq", "pru1-vq" + +Optional properties: +-------------------- + +- power-domains: A phandle to the power domain that powers the PRUSS + +- ti,hwmods: Name of the hwmod associated to the PRUSS, which is + typically "pruss" + +Example: +-------- + + // AM18xx + pru_rproc: cpu@30000 { + compatible = "ti,da850-pru-rproc"; + reg = <0x30000 0x10000>; + interrupts = <3>, <4>; + interrupt-names = "pru0-vq", "pru1-vq"; + power-domains = <&psc0 13>; + }; + + // AM335x + pru_rproc: cpu@4a300000 { + compatible = "ti,am3352-pru-rproc"; + reg = <0x4a300000 0x80000>; + interrupts = <20>, <21>; + interrupt-names = "pru0-vq", "pru1-vq"; + ti,hwmods = "pruss"; + };
This adds a new binding for the TI Programmable Runtime Unit (PRU) as a remoteproc device. Signed-off-by: David Lechner <david@lechnology.com> --- .../bindings/remoteproc/ti_pru_rproc.txt | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/ti_pru_rproc.txt