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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/qcom,msm8916-mss-pil.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm MSM8916 MSS Peripheral Image Loader (and similar)
+
+maintainers:
+ - Stephan Gerhold <stephan@gerhold.net>
+
+description:
+ This document describes the hardware for a component that loads and boots
+ firmware on the Qualcomm MSM8916 Modem Hexagon Core (and similar).
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - qcom,msm8909-mss-pil
+ - qcom,msm8916-mss-pil
+ - qcom,msm8953-mss-pil
+ - qcom,msm8974-mss-pil
+
+ - const: qcom,q6v5-pil
+ description: Deprecated, prefer using qcom,msm8916-mss-pil
+ deprecated: true
+
+ reg:
+ items:
+ - description: MSS QDSP6 registers
+ - description: RMB registers
+
+ reg-names:
+ items:
+ - const: qdsp6
+ - const: rmb
+
+ interrupts:
+ items:
+ - description: Watchdog interrupt
+ - description: Fatal interrupt
+ - description: Ready interrupt
+ - description: Handover interrupt
+ - description: Stop acknowledge interrupt
+
+ interrupt-names:
+ items:
+ - const: wdog
+ - const: fatal
+ - const: ready
+ - const: handover
+ - const: stop-ack
+
+ clocks:
+ items:
+ - description: Configuration interface (AXI) clock
+ - description: Configuration bus (AHB) clock
+ - description: Boot ROM (AHB) clock
+ - description: XO proxy clock (control handed over after startup)
+
+ clock-names:
+ items:
+ - const: iface
+ - const: bus
+ - const: mem
+ - const: xo
+
+ power-domains:
+ items:
+ - description: CX proxy power domain (control handed over after startup)
+ - description: MX proxy power domain (control handed over after startup)
+ - description: MSS proxy power domain (control handed over after startup)
+ (only valid for qcom,msm8953-mss-pil)
+ minItems: 2
+
+ power-domain-names:
+ items:
+ - const: cx
+ - const: mx
+ - const: mss # only valid for qcom,msm8953-mss-pil
+ minItems: 2
+
+ pll-supply:
+ description: PLL proxy supply (control handed over after startup)
+
+ mss-supply:
+ description: MSS power domain supply (only valid for qcom,msm8974-mss-pil)
+
+ resets:
+ items:
+ - description: MSS restart control
+
+ reset-names:
+ items:
+ - const: mss_restart
+
+ qcom,smem-states:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: States used by the AP to signal the Hexagon core
+ items:
+ - description: Stop modem
+
+ qcom,smem-state-names:
+ description: Names of the states used by the AP to signal the Hexagon core
+ items:
+ - const: stop
+
+ qcom,halt-regs:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description:
+ Halt registers are used to halt transactions of various sub-components
+ within MSS.
+ items:
+ - items:
+ - description: phandle to TCSR syscon region
+ - description: offset to the Q6 halt register
+ - description: offset to the modem halt register
+ - description: offset to the nc halt register
+
+ memory-region:
+ items:
+ - description: MBA reserved region
+ - description: MPSS reserved region
+
+ firmware-name:
+ $ref: /schemas/types.yaml#/definitions/string-array
+ items:
+ - description: Name of MBA firmware
+ - description: Name of modem firmware
+
+ bam-dmux:
+ $ref: /schemas/net/qcom,bam-dmux.yaml#
+ description:
+ Qualcomm BAM Data Multiplexer (provides network interface to the modem)
+
+ smd-edge:
+ $ref: qcom,smd-edge.yaml#
+ description:
+ Qualcomm SMD subnode which represents communication edge, channels
+ and devices related to the DSP.
+ properties:
+ label:
+ enum:
+ - modem
+ - hexagon
+ unevaluatedProperties: false
+
+ # Deprecated properties
+ cx-supply:
+ description: CX power domain regulator supply (prefer using power-domains)
+ deprecated: true
+
+ mx-supply:
+ description: MX power domain regulator supply (prefer using power-domains)
+ deprecated: true
+
+ mba:
+ type: object
+ additionalProperties: false
+ description:
+ MBA reserved region (prefer using memory-region with two items)
+ properties:
+ memory-region: true
+ required:
+ - memory-region
+ deprecated: true
+
+ mpss:
+ type: object
+ additionalProperties: false
+ description:
+ MPSS reserved region (prefer using memory-region with two items)
+ properties:
+ memory-region: true
+ required:
+ - memory-region
+ deprecated: true
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - interrupt-names
+ - clocks
+ - clock-names
+ - pll-supply
+ - resets
+ - reset-names
+ - qcom,halt-regs
+ - qcom,smem-states
+ - qcom,smem-state-names
+ - smd-edge
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ const: qcom,msm8953-mss-pil
+ then:
+ properties:
+ power-domains:
+ minItems: 3
+ power-domain-names:
+ minItems: 3
+ required:
+ - power-domains
+ - power-domain-names
+ else:
+ properties:
+ power-domains:
+ maxItems: 2
+ power-domain-names:
+ maxItems: 2
+
+ - if:
+ properties:
+ compatible:
+ const: qcom,msm8974-mss-pil
+ then:
+ required:
+ - mss-supply
+ else:
+ properties:
+ mss-supply: false
+
+ # Fallbacks for deprecated properties
+ - oneOf:
+ - required:
+ - memory-region
+ - required:
+ - mba
+ - mpss
+ - oneOf:
+ - required:
+ - power-domains
+ - power-domain-names
+ - required:
+ - cx-supply
+ - mx-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-msm8916.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+
+ remoteproc_mpss: remoteproc@4080000 {
+ compatible = "qcom,msm8916-mss-pil";
+ reg = <0x04080000 0x100>, <0x04020000 0x40>;
+ reg-names = "qdsp6", "rmb";
+
+ interrupts-extended = <&intc GIC_SPI 24 IRQ_TYPE_EDGE_RISING>,
+ <&hexagon_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
+ <&hexagon_smp2p_in 1 IRQ_TYPE_EDGE_RISING>,
+ <&hexagon_smp2p_in 2 IRQ_TYPE_EDGE_RISING>,
+ <&hexagon_smp2p_in 3 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "wdog", "fatal", "ready", "handover", "stop-ack";
+
+ qcom,smem-states = <&hexagon_smp2p_out 0>;
+ qcom,smem-state-names = "stop";
+ qcom,halt-regs = <&tcsr 0x18000 0x19000 0x1a000>;
+
+ clocks = <&gcc GCC_MSS_CFG_AHB_CLK>,
+ <&gcc GCC_MSS_Q6_BIMC_AXI_CLK>,
+ <&gcc GCC_BOOT_ROM_AHB_CLK>,
+ <&xo_board>;
+ clock-names = "iface", "bus", "mem", "xo";
+
+ power-domains = <&rpmpd MSM8916_VDDCX>, <&rpmpd MSM8916_VDDMX>;
+ power-domain-names = "cx", "mx";
+ pll-supply = <&pm8916_l7>;
+
+ resets = <&scm 0>;
+ reset-names = "mss_restart";
+
+ memory-region = <&mba_mem>, <&mpss_mem>;
+
+ smd-edge {
+ interrupts = <GIC_SPI 25 IRQ_TYPE_EDGE_RISING>;
+
+ qcom,smd-edge = <0>;
+ qcom,ipc = <&apcs 8 12>;
+ qcom,remote-pid = <1>;
+
+ label = "hexagon";
+ };
+ };