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In addition to using GLINK for communication with the RPM it can be used ontop of SMEM for communicating with remoteprocs, extend the binding to also describe this case and reference the GLINK binding from the affected remoteproc bindings. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
135 lines
3.5 KiB
Plaintext
135 lines
3.5 KiB
Plaintext
Qualcomm ADSP Peripheral Image Loader
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This document defines the binding for a component that loads and boots firmware
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on the Qualcomm ADSP Hexagon core.
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- compatible:
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Usage: required
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Value type: <string>
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Definition: must be one of:
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"qcom,msm8974-adsp-pil"
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"qcom,msm8996-adsp-pil"
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"qcom,msm8996-slpi-pil"
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- interrupts-extended:
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Usage: required
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Value type: <prop-encoded-array>
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Definition: must list the watchdog, fatal IRQs ready, handover and
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stop-ack IRQs
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- interrupt-names:
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Usage: required
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Value type: <stringlist>
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Definition: must be "wdog", "fatal", "ready", "handover", "stop-ack"
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- clocks:
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Usage: required
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Value type: <prop-encoded-array>
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Definition: reference to the xo clock and optionally aggre2 clock to be
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held on behalf of the booting Hexagon core
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- clock-names:
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Usage: required
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Value type: <stringlist>
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Definition: must be "xo" and optionally include "aggre2"
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- cx-supply:
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Usage: required
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Value type: <phandle>
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Definition: reference to the regulator to be held on behalf of the
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booting Hexagon core
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- px-supply:
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Usage: required
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Value type: <phandle>
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Definition: reference to the px regulator to be held on behalf of the
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booting Hexagon core
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- memory-region:
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Usage: required
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Value type: <phandle>
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Definition: reference to the reserved-memory for the ADSP
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- qcom,smem-states:
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Usage: required
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Value type: <phandle>
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Definition: reference to the smem state for requesting the ADSP to
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shut down
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- qcom,smem-state-names:
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Usage: required
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Value type: <stringlist>
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Definition: must be "stop"
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= SUBNODES
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The adsp node may have an subnode named either "smd-edge" or "glink-edge" that
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describes the communication edge, channels and devices related to the ADSP.
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See ../soc/qcom/qcom,smd.txt and ../soc/qcom/qcom,glink.txt for details on how
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to describe these.
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= EXAMPLE
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The following example describes the resources needed to boot control the
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ADSP, as it is found on MSM8974 boards.
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adsp {
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compatible = "qcom,msm8974-adsp-pil";
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interrupts-extended = <&intc 0 162 IRQ_TYPE_EDGE_RISING>,
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<&adsp_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
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<&adsp_smp2p_in 1 IRQ_TYPE_EDGE_RISING>,
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<&adsp_smp2p_in 2 IRQ_TYPE_EDGE_RISING>,
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<&adsp_smp2p_in 3 IRQ_TYPE_EDGE_RISING>;
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interrupt-names = "wdog",
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"fatal",
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"ready",
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"handover",
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"stop-ack";
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clocks = <&rpmcc RPM_CXO_CLK>;
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clock-names = "xo";
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cx-supply = <&pm8841_s2>;
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memory-region = <&adsp_region>;
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qcom,smem-states = <&adsp_smp2p_out 0>;
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qcom,smem-state-names = "stop";
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smd-edge {
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interrupts = <0 156 IRQ_TYPE_EDGE_RISING>;
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qcom,ipc = <&apcs 8 8>;
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qcom,smd-edge = <1>;
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};
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};
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The following example describes the resources needed to boot control the
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SLPI, as it is found on MSM8996 boards.
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slpi {
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compatible = "qcom,msm8996-slpi-pil";
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interrupts-extended = <&intc 0 390 IRQ_TYPE_EDGE_RISING>,
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<&slpi_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
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<&slpi_smp2p_in 1 IRQ_TYPE_EDGE_RISING>,
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<&slpi_smp2p_in 2 IRQ_TYPE_EDGE_RISING>,
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<&slpi_smp2p_in 3 IRQ_TYPE_EDGE_RISING>;
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interrupt-names = "wdog",
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"fatal",
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"ready",
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"handover",
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"stop-ack";
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clocks = <&rpmcc MSM8996_RPM_SMD_XO_CLK_SRC>,
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<&rpmcc MSM8996_RPM_SMD_AGGR2_NOC_CLK>;
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clock-names = "xo", "aggre2";
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cx-supply = <&pm8994_l26>;
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px-supply = <&pm8994_lvs2>;
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memory-region = <&slpi_region>;
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qcom,smem-states = <&slpi_smp2p_out 0>;
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qcom,smem-state-names = "stop";
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};
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