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-rw-r--r-- | Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt | 134 |
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diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt new file mode 100644 index 000000000..728e4193f --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt @@ -0,0 +1,134 @@ +Qualcomm ADSP Peripheral Image Loader + +This document defines the binding for a component that loads and boots firmware +on the Qualcomm ADSP Hexagon core. + +- compatible: + Usage: required + Value type: <string> + Definition: must be one of: + "qcom,msm8974-adsp-pil" + "qcom,msm8996-adsp-pil" + "qcom,msm8996-slpi-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" + +- clocks: + Usage: required + Value type: <prop-encoded-array> + Definition: reference to the xo clock and optionally aggre2 clock to be + held on behalf of the booting Hexagon core + +- clock-names: + Usage: required + Value type: <stringlist> + Definition: must be "xo" and optionally include "aggre2" + +- cx-supply: + Usage: required + Value type: <phandle> + Definition: reference to the regulator to be held on behalf of the + booting Hexagon core + +- px-supply: + Usage: required + Value type: <phandle> + Definition: reference to the px regulator to be held on behalf of the + booting 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" + + += SUBNODES +The adsp node may have an subnode named either "smd-edge" or "glink-edge" that +describes the communication edge, channels and devices related to the ADSP. +See ../soc/qcom/qcom,smd.txt and ../soc/qcom/qcom,glink.txt for details on how +to describe these. + + += EXAMPLE +The following example describes the resources needed to boot control the +ADSP, as it is found on MSM8974 boards. + + adsp { + compatible = "qcom,msm8974-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"; + + clocks = <&rpmcc RPM_CXO_CLK>; + clock-names = "xo"; + + cx-supply = <&pm8841_s2>; + + memory-region = <&adsp_region>; + + qcom,smem-states = <&adsp_smp2p_out 0>; + qcom,smem-state-names = "stop"; + + smd-edge { + interrupts = <0 156 IRQ_TYPE_EDGE_RISING>; + + qcom,ipc = <&apcs 8 8>; + qcom,smd-edge = <1>; + }; + }; + +The following example describes the resources needed to boot control the +SLPI, as it is found on MSM8996 boards. + + slpi { + compatible = "qcom,msm8996-slpi-pil"; + interrupts-extended = <&intc 0 390 IRQ_TYPE_EDGE_RISING>, + <&slpi_smp2p_in 0 IRQ_TYPE_EDGE_RISING>, + <&slpi_smp2p_in 1 IRQ_TYPE_EDGE_RISING>, + <&slpi_smp2p_in 2 IRQ_TYPE_EDGE_RISING>, + <&slpi_smp2p_in 3 IRQ_TYPE_EDGE_RISING>; + interrupt-names = "wdog", + "fatal", + "ready", + "handover", + "stop-ack"; + + clocks = <&rpmcc MSM8996_RPM_SMD_XO_CLK_SRC>, + <&rpmcc MSM8996_RPM_SMD_AGGR2_NOC_CLK>; + clock-names = "xo", "aggre2"; + + cx-supply = <&pm8994_l26>; + px-supply = <&pm8994_lvs2>; + + memory-region = <&slpi_region>; + qcom,smem-states = <&slpi_smp2p_out 0>; + qcom,smem-state-names = "stop"; + }; |