152 lines
3.9 KiB
Plaintext
152 lines
3.9 KiB
Plaintext
Qualcomm Hexagon 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 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,q6v5-pil",
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"qcom,ipq8074-wcss-pil"
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"qcom,msm8916-mss-pil",
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"qcom,msm8974-mss-pil"
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"qcom,msm8996-mss-pil"
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"qcom,sdm845-mss-pil"
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- reg:
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Usage: required
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Value type: <prop-encoded-array>
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Definition: must specify the base address and size of the qdsp6 and
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rmb register blocks
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- reg-names:
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Usage: required
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Value type: <stringlist>
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Definition: must be "q6dsp" and "rmb"
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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: <phandle>
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Definition: reference to the iface, bus and mem clocks to be held on
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behalf of the booting of the 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 "iface", "bus", "mem"
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- resets:
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Usage: required
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Value type: <phandle>
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Definition: reference to the reset-controller for the modem sub-system
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reference to the list of 3 reset-controllers for the
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wcss sub-system
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- reset-names:
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Usage: required
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Value type: <stringlist>
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Definition: must be "mss_restart" for the modem sub-system
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Definition: must be "wcss_aon_reset", "wcss_reset", "wcss_q6_reset"
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for the wcss syb-system
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- cx-supply:
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- mss-supply:
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- mx-supply:
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- pll-supply:
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Usage: required
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Value type: <phandle>
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Definition: reference to the regulators to be held on behalf of the
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booting of the Hexagon core
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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 Hexagon 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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- qcom,halt-regs:
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Usage: required
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Value type: <prop-encoded-array>
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Definition: a phandle reference to a syscon representing TCSR followed
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by the three offsets within syscon for q6, modem and nc
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halt registers.
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= SUBNODES:
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The Hexagon node must contain two subnodes, named "mba" and "mpss" representing
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the memory regions used by the Hexagon firmware. Each sub-node must contain:
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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 region
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The Hexagon node may also have an subnode named either "smd-edge" or
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"glink-edge" that describes the communication edge, channels and devices
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related to the Hexagon. See ../soc/qcom/qcom,smd.txt and
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../soc/qcom/qcom,glink.txt for details on how 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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Hexagon, as it is found on MSM8974 boards.
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modem-rproc@fc880000 {
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compatible = "qcom,q6v5-pil";
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reg = <0xfc880000 0x100>,
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<0xfc820000 0x020>;
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reg-names = "qdsp6", "rmb";
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interrupts-extended = <&intc 0 24 1>,
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<&modem_smp2p_in 0 0>,
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<&modem_smp2p_in 1 0>,
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<&modem_smp2p_in 2 0>,
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<&modem_smp2p_in 3 0>;
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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 = <&gcc GCC_MSS_Q6_BIMC_AXI_CLK>,
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<&gcc GCC_MSS_CFG_AHB_CLK>,
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<&gcc GCC_BOOT_ROM_AHB_CLK>;
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clock-names = "iface", "bus", "mem";
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qcom,halt-regs = <&tcsr_mutex_block 0x1180 0x1200 0x1280>;
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resets = <&gcc GCC_MSS_RESTART>;
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reset-names = "mss_restart";
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cx-supply = <&pm8841_s2>;
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mss-supply = <&pm8841_s3>;
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mx-supply = <&pm8841_s1>;
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pll-supply = <&pm8941_l12>;
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qcom,smem-states = <&modem_smp2p_out 0>;
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qcom,smem-state-names = "stop";
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mba {
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memory-region = <&mba_region>;
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};
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mpss {
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memory-region = <&mpss_region>;
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};
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};
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