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Add the compatible for MSS as found on the MSM8953 platform. The situation is similar to the existing bindings for MSM8974: there is an additional "mss" power domain that must be voted for while starting up the remote processor. The difference is that on MSM8974 the power domain is represented as a regulator (firmware expects specific voltage) while on MSM8953 it is represented as power domain (firmware expects performance state instead of voltage). Handle this difference by adding the "mss" power domain as optional third item, and then restrict it (and make it required) only when using the MSM8953 compatible. Co-developed-by: Sireesh Kodali <sireeshkodali1@gmail.com> Signed-off-by: Sireesh Kodali <sireeshkodali1@gmail.com> Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220908182433.466908-7-stephan.gerhold@kernkonzept.com
290 lines
7.2 KiB
YAML
290 lines
7.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/remoteproc/qcom,msm8916-mss-pil.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm MSM8916 MSS Peripheral Image Loader (and similar)
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maintainers:
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- Stephan Gerhold <stephan@gerhold.net>
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description:
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This document describes the hardware for a component that loads and boots
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firmware on the Qualcomm MSM8916 Modem Hexagon Core (and similar).
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properties:
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compatible:
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oneOf:
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- enum:
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- qcom,msm8909-mss-pil
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- qcom,msm8916-mss-pil
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- qcom,msm8953-mss-pil
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- qcom,msm8974-mss-pil
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- const: qcom,q6v5-pil
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description: Deprecated, prefer using qcom,msm8916-mss-pil
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deprecated: true
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reg:
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items:
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- description: MSS QDSP6 registers
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- description: RMB registers
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reg-names:
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items:
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- const: qdsp6
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- const: rmb
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interrupts:
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items:
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- description: Watchdog interrupt
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- description: Fatal interrupt
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- description: Ready interrupt
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- description: Handover interrupt
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- description: Stop acknowledge interrupt
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interrupt-names:
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items:
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- const: wdog
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- const: fatal
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- const: ready
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- const: handover
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- const: stop-ack
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clocks:
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items:
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- description: Configuration interface (AXI) clock
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- description: Configuration bus (AHB) clock
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- description: Boot ROM (AHB) clock
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- description: XO proxy clock (control handed over after startup)
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clock-names:
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items:
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- const: iface
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- const: bus
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- const: mem
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- const: xo
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power-domains:
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items:
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- description: CX proxy power domain (control handed over after startup)
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- description: MX proxy power domain (control handed over after startup)
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- description: MSS proxy power domain (control handed over after startup)
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(only valid for qcom,msm8953-mss-pil)
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minItems: 2
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power-domain-names:
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items:
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- const: cx
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- const: mx
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- const: mss # only valid for qcom,msm8953-mss-pil
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minItems: 2
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pll-supply:
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description: PLL proxy supply (control handed over after startup)
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mss-supply:
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description: MSS power domain supply (only valid for qcom,msm8974-mss-pil)
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resets:
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items:
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- description: MSS restart control
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reset-names:
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items:
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- const: mss_restart
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qcom,smem-states:
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$ref: /schemas/types.yaml#/definitions/phandle-array
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description: States used by the AP to signal the Hexagon core
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items:
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- description: Stop modem
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qcom,smem-state-names:
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description: Names of the states used by the AP to signal the Hexagon core
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items:
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- const: stop
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qcom,halt-regs:
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$ref: /schemas/types.yaml#/definitions/phandle-array
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description:
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Halt registers are used to halt transactions of various sub-components
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within MSS.
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items:
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- items:
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- description: phandle to TCSR syscon region
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- description: offset to the Q6 halt register
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- description: offset to the modem halt register
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- description: offset to the nc halt register
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memory-region:
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items:
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- description: MBA reserved region
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- description: MPSS reserved region
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firmware-name:
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$ref: /schemas/types.yaml#/definitions/string-array
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items:
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- description: Name of MBA firmware
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- description: Name of modem firmware
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bam-dmux:
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$ref: /schemas/net/qcom,bam-dmux.yaml#
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description:
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Qualcomm BAM Data Multiplexer (provides network interface to the modem)
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smd-edge:
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$ref: qcom,smd-edge.yaml#
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description:
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Qualcomm SMD subnode which represents communication edge, channels
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and devices related to the DSP.
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properties:
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label:
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enum:
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- modem
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- hexagon
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unevaluatedProperties: false
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# Deprecated properties
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cx-supply:
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description: CX power domain regulator supply (prefer using power-domains)
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deprecated: true
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mx-supply:
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description: MX power domain regulator supply (prefer using power-domains)
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deprecated: true
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mba:
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type: object
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description:
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MBA reserved region (prefer using memory-region with two items)
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properties:
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memory-region: true
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required:
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- memory-region
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deprecated: true
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mpss:
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type: object
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description:
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MPSS reserved region (prefer using memory-region with two items)
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properties:
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memory-region: true
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required:
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- memory-region
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deprecated: true
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required:
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- compatible
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- reg
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- reg-names
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- interrupts
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- interrupt-names
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- clocks
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- clock-names
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- pll-supply
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- resets
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- reset-names
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- qcom,halt-regs
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- qcom,smem-states
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- qcom,smem-state-names
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- smd-edge
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allOf:
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- if:
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properties:
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compatible:
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const: qcom,msm8953-mss-pil
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then:
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properties:
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power-domains:
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minItems: 3
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power-domain-names:
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minItems: 3
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required:
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- power-domains
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- power-domain-names
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else:
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properties:
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power-domains:
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maxItems: 2
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power-domain-names:
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maxItems: 2
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- if:
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properties:
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compatible:
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const: qcom,msm8974-mss-pil
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then:
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required:
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- mss-supply
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else:
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properties:
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mss-supply: false
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# Fallbacks for deprecated properties
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- oneOf:
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- required:
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- memory-region
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- required:
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- mba
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- mpss
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- oneOf:
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- required:
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- power-domains
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- power-domain-names
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- required:
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- cx-supply
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- mx-supply
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/qcom,gcc-msm8916.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/power/qcom-rpmpd.h>
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remoteproc_mpss: remoteproc@4080000 {
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compatible = "qcom,msm8916-mss-pil";
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reg = <0x04080000 0x100>, <0x04020000 0x40>;
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reg-names = "qdsp6", "rmb";
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interrupts-extended = <&intc GIC_SPI 24 IRQ_TYPE_EDGE_RISING>,
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<&hexagon_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
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<&hexagon_smp2p_in 1 IRQ_TYPE_EDGE_RISING>,
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<&hexagon_smp2p_in 2 IRQ_TYPE_EDGE_RISING>,
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<&hexagon_smp2p_in 3 IRQ_TYPE_EDGE_RISING>;
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interrupt-names = "wdog", "fatal", "ready", "handover", "stop-ack";
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qcom,smem-states = <&hexagon_smp2p_out 0>;
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qcom,smem-state-names = "stop";
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qcom,halt-regs = <&tcsr 0x18000 0x19000 0x1a000>;
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clocks = <&gcc GCC_MSS_CFG_AHB_CLK>,
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<&gcc GCC_MSS_Q6_BIMC_AXI_CLK>,
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<&gcc GCC_BOOT_ROM_AHB_CLK>,
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<&xo_board>;
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clock-names = "iface", "bus", "mem", "xo";
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power-domains = <&rpmpd MSM8916_VDDCX>, <&rpmpd MSM8916_VDDMX>;
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power-domain-names = "cx", "mx";
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pll-supply = <&pm8916_l7>;
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resets = <&scm 0>;
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reset-names = "mss_restart";
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memory-region = <&mba_mem>, <&mpss_mem>;
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smd-edge {
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interrupts = <GIC_SPI 25 IRQ_TYPE_EDGE_RISING>;
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qcom,smd-edge = <0>;
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qcom,ipc = <&apcs 8 12>;
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qcom,remote-pid = <1>;
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label = "hexagon";
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};
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};
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