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1Qualcomm Hexagon Peripheral Image Loader2 3This document defines the binding for a component that loads and boots firmware4on the Qualcomm Hexagon core.5 6- compatible:7 Usage: required8 Value type: <string>9 Definition: must be one of:10 "qcom,ipq8074-wcss-pil"11 "qcom,qcs404-wcss-pil"12 13- reg:14 Usage: required15 Value type: <prop-encoded-array>16 Definition: must specify the base address and size of the qdsp6 and17 rmb register blocks18 19- reg-names:20 Usage: required21 Value type: <stringlist>22 Definition: must be "q6dsp" and "rmb"23 24- interrupts-extended:25 Usage: required26 Value type: <prop-encoded-array>27 Definition: reference to the interrupts that match interrupt-names28 29- interrupt-names:30 Usage: required31 Value type: <stringlist>32 Definition: must be "wdog", "fatal", "ready", "handover", "stop-ack"33 34- clocks:35 Usage: required36 Value type: <phandle>37 Definition: reference to the clocks that match clock-names38 39- clock-names:40 Usage: required41 Value type: <stringlist>42 Definition: The clocks needed depend on the compatible string:43 qcom,ipq8074-wcss-pil:44 no clock names required45 qcom,qcs404-wcss-pil:46 must be "xo", "gcc_abhs_cbcr", "gcc_abhs_cbcr",47 "gcc_axim_cbcr", "lcc_ahbfabric_cbc", "tcsr_lcc_cbc",48 "lcc_abhs_cbc", "lcc_tcm_slave_cbc", "lcc_abhm_cbc",49 "lcc_axim_cbc", "lcc_bcr_sleep"50 51- resets:52 Usage: required53 Value type: <phandle>54 Definition: reference to the list of 3 reset-controllers for the55 wcss sub-system56 57- reset-names:58 Usage: required59 Value type: <stringlist>60 Definition: must be "wcss_aon_reset", "wcss_reset", "wcss_q6_reset"61 for the wcss sub-system62 63- memory-region:64 Usage: required65 Value type: <phandle>66 Definition: reference to wcss reserved-memory region.67 68For the compatible string below the following supplies are required:69 "qcom,qcs404-wcss-pil"70- cx-supply:71 Usage: required72 Value type: <phandle>73 Definition: reference to the regulators to be held on behalf of the74 booting of the Hexagon core75 76- qcom,smem-states:77 Usage: required78 Value type: <phandle>79 Definition: reference to the smem state for requesting the Hexagon to80 shut down81 82- qcom,smem-state-names:83 Usage: required84 Value type: <stringlist>85 Definition: must be "stop"86 87- qcom,halt-regs:88 Usage: required89 Value type: <prop-encoded-array>90 Definition: a phandle reference to a syscon representing TCSR followed91 by the three offsets within syscon for q6, wcss and nc92 halt registers.93 94- memory-region:95 Usage: required96 Value type: <phandle>97 Definition: reference to the reserved-memory for the region98 99The Hexagon node may also have an subnode named either "smd-edge" or100"glink-edge" that describes the communication edge, channels and devices101related to the Hexagon. See ../soc/qcom/qcom,smd.yaml and102../soc/qcom/qcom,glink.txt for details on how to describe these.103