forked from Minki/linux
3103405f0a
The document defines the binding for a component that loads firmware for and boots the Qualcomm WCNSS core. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
133 lines
3.3 KiB
Plaintext
133 lines
3.3 KiB
Plaintext
Qualcomm WCNSS 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 WCNSS 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,riva-pil",
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"qcom,pronto-v1-pil",
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"qcom,pronto-v2-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 CCU, DXE and
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PMU 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 "ccu", "dxe", "pmu"
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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 and fatal IRQs and may specify the
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ready, handover and 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: should be "wdog", "fatal", optionally followed by "ready",
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"handover", "stop-ack"
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- vddmx-supply:
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- vddcx-supply:
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- vddpx-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 WCNSS core
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- qcom,smem-states:
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Usage: optional
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Value type: <prop-encoded-array>
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Definition: reference to the SMEM state used to indicate to WCNSS that
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it should shut down
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- qcom,smem-state-names:
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Usage: optional
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Value type: <stringlist>
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Definition: should be "stop"
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- memory-region:
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Usage: required
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Value type: <prop-encoded-array>
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Definition: reference to reserved-memory node for the remote processor
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see ../reserved-memory/reserved-memory.txt
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= SUBNODES
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A single subnode of the WCNSS PIL describes the attached rf module and its
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resource dependencies.
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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,wcn3620",
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"qcom,wcn3660",
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"qcom,wcn3680"
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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: should specify the xo clock and optionally the rf clock
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- clock-names:
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Usage: required
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Value type: <stringlist>
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Definition: should be "xo", optionally followed by "rf"
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- vddxo-supply:
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- vddrfa-supply:
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- vddpa-supply:
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- vdddig-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 WCNSS core
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= EXAMPLE
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The following example describes the resources needed to boot control the WCNSS,
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with attached WCN3680, as it is commonly found on MSM8974 boards.
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pronto@fb204000 {
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compatible = "qcom,pronto-v2-pil";
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reg = <0xfb204000 0x2000>, <0xfb202000 0x1000>, <0xfb21b000 0x3000>;
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reg-names = "ccu", "dxe", "pmu";
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interrupts-extended = <&intc 0 149 1>,
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<&wcnss_smp2p_slave 0 0>,
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<&wcnss_smp2p_slave 1 0>,
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<&wcnss_smp2p_slave 2 0>,
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<&wcnss_smp2p_slave 3 0>;
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interrupt-names = "wdog", "fatal", "ready", "handover", "stop-ack";
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vddmx-supply = <&pm8841_s1>;
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vddcx-supply = <&pm8841_s2>;
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vddpx-supply = <&pm8941_s3>;
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qcom,smem-states = <&wcnss_smp2p_out 0>;
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qcom,smem-state-names = "stop";
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memory-region = <&wcnss_region>;
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pinctrl-names = "default";
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pinctrl-0 = <&wcnss_pin_a>;
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iris {
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compatible = "qcom,wcn3680";
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clocks = <&rpmcc RPM_CXO_CLK_SRC>, <&rpmcc RPM_CXO_A2>;
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clock-names = "xo", "rf";
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vddxo-supply = <&pm8941_l6>;
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vddrfa-supply = <&pm8941_l11>;
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vddpa-supply = <&pm8941_l19>;
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vdddig-supply = <&pm8941_s3>;
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};
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};
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