[PATCH v2 1/4] dt-binding: remoteproc: Introduce ADSP loader binding
From: Bjorn Andersson <hidden>
Date: 2016-08-23 05:57:52
Also in:
linux-arm-msm, linux-devicetree, linux-remoteproc, lkml
Subsystem:
arm/qualcomm mailing list, open firmware and flattened device tree bindings, remote processor (remoteproc) subsystem, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Bjorn Andersson, Mathieu Poirier, Linus Torvalds
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 <redacted> --- Changes since v1: - Added platform names to compatibility .../devicetree/bindings/remoteproc/qcom,adsp.txt | 70 ++++++++++++++++++++++ 1 file changed, 70 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..3820151ce3e9
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt@@ -0,0 +1,70 @@ +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,msm8974-adsp-pil" + "qcom,msm8996-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 IRQ_TYPE_EDGE_RISING>, + <&adsp_smp2p_in 0 IRQ_TYPE_EDGE_RISING>, + <&adsp_smp2p_in 1 IRQ_TYPE_EDGE_RISING>, + <&adsp_smp2p_in 2 IRQ_TYPE_EDGE_RISING>, + <&adsp_smp2p_in 3 IRQ_TYPE_EDGE_RISING>; + interrupt-names = "wdog", + "fatal", + "ready", + "handover", + "stop-ack"; + + cx-supply = <&pm8841_s2>; + + memory-region = <&adsp_region>; + + qcom,smem-states = <&modem_smp2p_out 0>; + qcom,smem-state-names = "stop"; + };
--
2.5.0