This document defines the binding for a component that loads firmware
and control the life cycle of the Qualcomm slpi core.
Signed-off-by: Avaneesh Kumar Dwivedi <akdwived@xxxxxxxxxxxxxx>
---
.../devicetree/bindings/remoteproc/qcom,slpi.txt | 88 ++++++++++++++++++++++
1 file changed, 88 insertions(+)
create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,slpi.txt
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,slpi.txt b/Documentation/devicetree/bindings/remoteproc/qcom,slpi.txt
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+Qualcomm SLPI Peripheral Image Loader
+
+This document defines the binding for a component that loads and boots firmware
+on the Qualcomm ADSP Hexagon core.
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be:
+ "qcom,msm8996-adsp-pil"
+
+- interrupts-extended:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: must list the watchdog, fatal IRQs ready, handover and
+ stop-ack IRQs
+
+- interrupt-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must be "wdog", "fatal", "ready", "handover", "stop-ack"
+
+- clocks:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: reference to the xo and aggre2_noc clock to be held on behalf of the
+ booting slpi core
+
+- clock-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must be "xo" and "aggre2_noc"
+
+- cx-supply:
+- px-supply:
+ Usage: required
+ Value type: <phandle>
+ Definition: reference to the regulators to be held on behalf of the
+ booting slpi core
+
+- memory-region:
+ Usage: required
+ Value type: <phandle>
+ Definition: reference to the reserved-memory for the SLPI
+
+- qcom,smem-states:
+ Usage: required
+ Value type: <phandle>
+ Definition: reference to the smem state for requesting the SLPI to
+ shut down
+
+- qcom,smem-state-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must be "stop"
+
+
+= EXAMPLE
+The following example describes the resources needed to boot control the
+SLPI, as it is found on MSM8996 boards.
+
+ adsp {
+ compatible = "qcom,msm8996-slpi-pil";
+
+ interrupts-extended = <&intc 0 390 IRQ_TYPE_EDGE_RISING>,
+ <&slpi_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
+ <&slpi_smp2p_in 1 IRQ_TYPE_EDGE_RISING>,
+ <&slpi_smp2p_in 2 IRQ_TYPE_EDGE_RISING>,
+ <&slpi_smp2p_in 3 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "wdog",
+ "fatal",
+ "ready",
+ "handover",
+ "stop-ack";
+
+ clocks = <&rpmcc MSM8996_RPM_SMD_XO_CLK_SRC>,
+ <&rpmcc MSM8996_RPM_SMD_AGGR2_NOC_CLK>;
+ clock-names = "xo",
+ "aggre2";
+
+ vdd_cx-supply = <&pm8994_l26_corner>;
+ vdd_px-supply = <&pm8994_lvs2>;
+
+ memory-region = <&slpi_region>;
+
+ qcom,smem-states = <&slpi_smp2p_out 0>;
+ qcom,smem-state-names = "stop";
+ };
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project.
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