# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/remoteproc/qcom,sc7180-mss-pil.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm SC7180 MSS Peripheral Image Loader

maintainers:
  - Sibi Sankar <quic_sibis@quicinc.com>

description:
  This document describes the hardware for a component that loads and boots firmware
  on the Qualcomm Technology Inc. SC7180 Modem Hexagon Core.

properties:
  compatible:
    enum:
      - qcom,sc7180-mss-pil

  reg:
    items:
      - description: MSS QDSP6 registers
      - description: RMB registers

  reg-names:
    items:
      - const: qdsp6
      - const: rmb

  iommus:
    items:
      - description: MSA Stream 1
      - description: MSA Stream 2

  interrupts:
    items:
      - description: Watchdog interrupt
      - description: Fatal interrupt
      - description: Ready interrupt
      - description: Handover interrupt
      - description: Stop acknowledge interrupt
      - description: Shutdown acknowledge interrupt

  interrupt-names:
    items:
      - const: wdog
      - const: fatal
      - const: ready
      - const: handover
      - const: stop-ack
      - const: shutdown-ack

  clocks:
    items:
      - description: GCC MSS IFACE clock
      - description: GCC MSS BUS clock
      - description: GCC MSS NAV clock
      - description: GCC MSS SNOC_AXI clock
      - description: GCC MSS MFAB_AXIS clock
      - description: RPMH XO clock

  clock-names:
    items:
      - const: iface
      - const: bus
      - const: nav
      - const: snoc_axi
      - const: mnoc_axi
      - const: xo

  power-domains:
    items:
      - description: CX power domain
      - description: MX power domain
      - description: MSS power domain

  power-domain-names:
    items:
      - const: cx
      - const: mx
      - const: mss

  resets:
    items:
      - description: AOSS restart
      - description: PDC reset

  reset-names:
    items:
      - const: mss_restart
      - const: pdc_reset

  memory-region:
    items:
      - description: MBA reserved region
      - description: modem reserved region

  firmware-name:
    $ref: /schemas/types.yaml#/definitions/string-array
    items:
      - description: Name of MBA firmware
      - description: Name of modem firmware

  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_MUTEX registers
          - description: offset to the Q6 halt register
          - description: offset to the modem halt register
          - description: offset to the nc halt register

  qcom,spare-regs:
    $ref: /schemas/types.yaml#/definitions/phandle-array
    description:
      Spare registers are multipurpose registers used for errata
      handling.
    items:
      - items:
          - description: phandle to TCSR_MUTEX registers
          - description: offset to the conn_box_spare0 register

  qcom,qmp:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: Reference to the AOSS side-channel message RAM.

  qcom,smem-states:
    $ref: /schemas/types.yaml#/definitions/phandle-array
    description: States used by the AP to signal the Hexagon core
    items:
      - description: Stop the modem

  qcom,smem-state-names:
    description: The names of the state bits used for SMP2P output
    const: stop

  glink-edge:
    $ref: qcom,glink-edge.yaml#
    unevaluatedProperties: false
    description:
      Qualcomm G-Link subnode which represents communication edge, channels
      and devices related to the DSP.

    properties:
      interrupts:
        items:
          - description: IRQ from MSS to GLINK

      mboxes:
        items:
          - description: Mailbox for communication between APPS and MSS

      label:
        const: modem

      apr: false
      fastrpc: false

required:
  - compatible
  - reg
  - reg-names
  - iommus
  - interrupts
  - interrupt-names
  - clocks
  - clock-names
  - power-domains
  - power-domain-names
  - resets
  - reset-names
  - qcom,halt-regs
  - qcom,spare-regs
  - memory-region
  - qcom,qmp
  - qcom,smem-states
  - qcom,smem-state-names
  - glink-edge

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/qcom,gcc-sc7180.h>
    #include <dt-bindings/clock/qcom,rpmh.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/power/qcom-rpmpd.h>
    #include <dt-bindings/reset/qcom,sdm845-aoss.h>
    #include <dt-bindings/reset/qcom,sdm845-pdc.h>

    remoteproc_mpss: remoteproc@4080000 {
        compatible = "qcom,sc7180-mss-pil";
        reg = <0x04080000 0x10000>, <0x04180000 0x48>;
        reg-names = "qdsp6", "rmb";

        iommus = <&apps_smmu 0x461 0x0>, <&apps_smmu 0x444 0x3>;

        interrupts-extended = <&intc GIC_SPI 264 IRQ_TYPE_EDGE_RISING>,
                              <&modem_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
                              <&modem_smp2p_in 1 IRQ_TYPE_EDGE_RISING>,
                              <&modem_smp2p_in 2 IRQ_TYPE_EDGE_RISING>,
                              <&modem_smp2p_in 3 IRQ_TYPE_EDGE_RISING>,
                              <&modem_smp2p_in 7 IRQ_TYPE_EDGE_RISING>;

        interrupt-names = "wdog", "fatal", "ready", "handover",
                          "stop-ack", "shutdown-ack";

        clocks = <&gcc GCC_MSS_CFG_AHB_CLK>,
                 <&gcc GCC_MSS_Q6_MEMNOC_AXI_CLK>,
                 <&gcc GCC_MSS_NAV_AXI_CLK>,
                 <&gcc GCC_MSS_SNOC_AXI_CLK>,
                 <&gcc GCC_MSS_MFAB_AXIS_CLK>,
                 <&rpmhcc RPMH_CXO_CLK>;
        clock-names = "iface", "bus", "nav", "snoc_axi",
                      "mnoc_axi", "xo";

        power-domains = <&rpmhpd SC7180_CX>,
                        <&rpmhpd SC7180_MX>,
                        <&rpmhpd SC7180_MSS>;
        power-domain-names = "cx", "mx", "mss";

        memory-region = <&mba_mem>, <&mpss_mem>;

        qcom,qmp = <&aoss_qmp>;

        qcom,smem-states = <&modem_smp2p_out 0>;
        qcom,smem-state-names = "stop";

        resets = <&aoss_reset AOSS_CC_MSS_RESTART>,
                 <&pdc_reset PDC_MODEM_SYNC_RESET>;
        reset-names = "mss_restart", "pdc_reset";

        qcom,halt-regs = <&tcsr_mutex_regs 0x23000 0x25000 0x24000>;
        qcom,spare-regs = <&tcsr_regs 0xb3e4>;

        glink-edge {
            interrupts = <GIC_SPI 449 IRQ_TYPE_EDGE_RISING>;
            mboxes = <&apss_shared 12>;
            qcom,remote-pid = <1>;
            label = "modem";
        };
    };