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Qualcomm Hexagon Peripheral Image Loader
This document defines the binding for a component that loads and boots firmware
on the Qualcomm Hexagon core.
- compatible:
Usage: required
Value type: <string>
Definition: must be one of:
"qcom,ipq8074-wcss-pil"
"qcom,qcs404-wcss-pil"
- reg:
Usage: required
Value type: <prop-encoded-array>
Definition: must specify the base address and size of the qdsp6 and
rmb register blocks
- reg-names:
Usage: required
Value type: <stringlist>
Definition: must be "q6dsp" and "rmb"
- interrupts-extended:
Usage: required
Value type: <prop-encoded-array>
Definition: reference to the interrupts that match interrupt-names
- interrupt-names:
Usage: required
Value type: <stringlist>
Definition: must be "wdog", "fatal", "ready", "handover", "stop-ack"
- clocks:
Usage: required
Value type: <phandle>
Definition: reference to the clocks that match clock-names
- clock-names:
Usage: required
Value type: <stringlist>
Definition: The clocks needed depend on the compatible string:
qcom,ipq8074-wcss-pil:
no clock names required
qcom,qcs404-wcss-pil:
must be "xo", "gcc_abhs_cbcr", "gcc_abhs_cbcr",
"gcc_axim_cbcr", "lcc_ahbfabric_cbc", "tcsr_lcc_cbc",
"lcc_abhs_cbc", "lcc_tcm_slave_cbc", "lcc_abhm_cbc",
"lcc_axim_cbc", "lcc_bcr_sleep"
- resets:
Usage: required
Value type: <phandle>
Definition: reference to the list of 3 reset-controllers for the
wcss sub-system
- reset-names:
Usage: required
Value type: <stringlist>
Definition: must be "wcss_aon_reset", "wcss_reset", "wcss_q6_reset"
for the wcss sub-system
- memory-region:
Usage: required
Value type: <phandle>
Definition: reference to wcss reserved-memory region.
For the compatible string below the following supplies are required:
"qcom,qcs404-wcss-pil"
- cx-supply:
Usage: required
Value type: <phandle>
Definition: reference to the regulators to be held on behalf of the
booting of the Hexagon core
- qcom,smem-states:
Usage: required
Value type: <phandle>
Definition: reference to the smem state for requesting the Hexagon to
shut down
- qcom,smem-state-names:
Usage: required
Value type: <stringlist>
Definition: must be "stop"
- qcom,halt-regs:
Usage: required
Value type: <prop-encoded-array>
Definition: a phandle reference to a syscon representing TCSR followed
by the three offsets within syscon for q6, wcss and nc
halt registers.
- memory-region:
Usage: required
Value type: <phandle>
Definition: reference to the reserved-memory for the region
The Hexagon node may also have an subnode named either "smd-edge" or
"glink-edge" that describes the communication edge, channels and devices
related to the Hexagon. See ../soc/qcom/qcom,smd.yaml and
../soc/qcom/qcom,glink.txt for details on how to describe these.
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