This document defines the binding for a component that loads firmware and control the life cycle of the Qualcomm ADSP core. Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> --- .../devicetree/bindings/remoteproc/qcom,adsp.txt | 69 ++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt new file mode 100644 index 000000000000..077d9b6b9cd0 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt @@ -0,0 +1,69 @@ +Qualcomm ADSP Peripheral Image Loader + +This document defines the binding for a component that loads and boots firmware +on the Qualcomm ADSP core. + +- compatible: + Usage: required + Value type: <string> + Definition: must be one of: + "qcom,adsp-pil" + +- interrupts-extended: + Usage: required + Value type: <prop-encoded-array> + Definition: must list the watchdog, fatal IRQs ready, handover and + stop-ack IRQs + +- interrupt-names: + Usage: required + Value type: <stringlist> + Definition: must be "wdog", "fatal", "ready", "handover", "stop-ack" + +- cx-supply: + Usage: required + Value type: <phandle> + Definition: reference to the regulator to be held on behalf of the + booting of the Hexagon core + +- memory-region: + Usage: required + Value type: <phandle> + Definition: reference to the reserved-memory for the ADSP + +- qcom,smem-states: + Usage: required + Value type: <phandle> + Definition: reference to the smem state for requesting the ADSP to + shut down + +- qcom,smem-state-names: + Usage: required + Value type: <stringlist> + Definition: must be "stop" + += EXAMPLE +The following example describes the resources needed to boot control the +ADSP, as it is found on MSM8974 boards. + + adsp { + compatible = "qcom,adsp-pil"; + + interrupts-extended = <&intc 0 162 1>, + <&adsp_smp2p_in 0 0>, + <&adsp_smp2p_in 1 0>, + <&adsp_smp2p_in 2 0>, + <&adsp_smp2p_in 3 0>; + interrupt-names = "wdog", + "fatal", + "ready", + "handover", + "stop-ack"; + + cx-supply = <&pm8841_s2>; + + memory-region = <&adsp_region>; + + qcom,smem-states = <&adsp_smp2p_out 0>; + qcom,smem-state-names = "stop"; + }; -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html