1Qualcomm Hexagon Peripheral Image Loader 2 3This document defines the binding for a component that loads and boots firmware 4on the Qualcomm Hexagon core. 5 6- compatible: 7 Usage: required 8 Value type: <string> 9 Definition: must be one of: 10 "qcom,ipq8074-wcss-pil" 11 "qcom,qcs404-wcss-pil" 12 13- reg: 14 Usage: required 15 Value type: <prop-encoded-array> 16 Definition: must specify the base address and size of the qdsp6 and 17 rmb register blocks 18 19- reg-names: 20 Usage: required 21 Value type: <stringlist> 22 Definition: must be "q6dsp" and "rmb" 23 24- interrupts-extended: 25 Usage: required 26 Value type: <prop-encoded-array> 27 Definition: reference to the interrupts that match interrupt-names 28 29- interrupt-names: 30 Usage: required 31 Value type: <stringlist> 32 Definition: must be "wdog", "fatal", "ready", "handover", "stop-ack" 33 34- clocks: 35 Usage: required 36 Value type: <phandle> 37 Definition: reference to the clocks that match clock-names 38 39- clock-names: 40 Usage: required 41 Value type: <stringlist> 42 Definition: The clocks needed depend on the compatible string: 43 qcom,ipq8074-wcss-pil: 44 no clock names required 45 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: required 53 Value type: <phandle> 54 Definition: reference to the list of 3 reset-controllers for the 55 wcss sub-system 56 57- reset-names: 58 Usage: required 59 Value type: <stringlist> 60 Definition: must be "wcss_aon_reset", "wcss_reset", "wcss_q6_reset" 61 for the wcss sub-system 62 63- memory-region: 64 Usage: required 65 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: required 72 Value type: <phandle> 73 Definition: reference to the regulators to be held on behalf of the 74 booting of the Hexagon core 75 76- qcom,smem-states: 77 Usage: required 78 Value type: <phandle> 79 Definition: reference to the smem state for requesting the Hexagon to 80 shut down 81 82- qcom,smem-state-names: 83 Usage: required 84 Value type: <stringlist> 85 Definition: must be "stop" 86 87- qcom,halt-regs: 88 Usage: required 89 Value type: <prop-encoded-array> 90 Definition: a phandle reference to a syscon representing TCSR followed 91 by the three offsets within syscon for q6, wcss and nc 92 halt registers. 93 94- memory-region: 95 Usage: required 96 Value type: <phandle> 97 Definition: reference to the reserved-memory for the region 98 99The Hexagon node may also have an subnode named either "smd-edge" or 100"glink-edge" that describes the communication edge, channels and devices 101related to the Hexagon. See ../soc/qcom/qcom,smd.yaml and 102../soc/qcom/qcom,glink.txt for details on how to describe these. 103