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dt-bindings: firmware: convert Qualcomm SCM binding to the yaml
Convert Qualcomm SCM firmware binding to the yaml format. This commit also: - adds qcom,scm-mdm9607 into list which has only core clock - adds qcom,scm-sm6125, qcom,scm-ipq6018 - #reset-cells, because the property is already used Signed-off-by: David Heidelberg <david@ixit.cz> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Guru Das Srinagesh <quic_gurus@quicinc.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220708090431.30437-1-david@ixit.cz
This commit is contained in:
David Heidelberg
Bjorn Andersson
parent
5257841aaa
commit
1c46589d4e
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QCOM Secure Channel Manager (SCM)
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Qualcomm processors include an interface to communicate to the secure firmware.
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This interface allows for clients to request different types of actions. These
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can include CPU power up/down, HDCP requests, loading of firmware, and other
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assorted actions.
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Required properties:
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- compatible: must contain one of the following:
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* "qcom,scm-apq8064"
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* "qcom,scm-apq8084"
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* "qcom,scm-ipq4019"
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* "qcom,scm-ipq806x"
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* "qcom,scm-ipq8074"
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* "qcom,scm-mdm9607"
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* "qcom,scm-msm8226"
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* "qcom,scm-msm8660"
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* "qcom,scm-msm8916"
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* "qcom,scm-msm8953"
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* "qcom,scm-msm8960"
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* "qcom,scm-msm8974"
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* "qcom,scm-msm8976"
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* "qcom,scm-msm8994"
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* "qcom,scm-msm8996"
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* "qcom,scm-msm8998"
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* "qcom,scm-qcs404"
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* "qcom,scm-sc7180"
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* "qcom,scm-sc7280"
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* "qcom,scm-sm6125"
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* "qcom,scm-sdm845"
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* "qcom,scm-sdx55"
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* "qcom,scm-sdx65"
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* "qcom,scm-sm6350"
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* "qcom,scm-sm8150"
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* "qcom,scm-sm8250"
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* "qcom,scm-sm8350"
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* "qcom,scm-sm8450"
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and:
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* "qcom,scm"
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- clocks: Specifies clocks needed by the SCM interface, if any:
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* core clock required for "qcom,scm-apq8064", "qcom,scm-msm8660" and
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"qcom,scm-msm8960"
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* core, iface and bus clocks required for "qcom,scm-apq8084",
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"qcom,scm-msm8916", "qcom,scm-msm8953", "qcom,scm-msm8974" and "qcom,scm-msm8976"
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- clock-names: Must contain "core" for the core clock, "iface" for the interface
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clock and "bus" for the bus clock per the requirements of the compatible.
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- qcom,dload-mode: phandle to the TCSR hardware block and offset of the
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download mode control register (optional)
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- interconnects: Specifies the bandwidth requirements of the SCM interface (optional)
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Example for MSM8916:
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firmware {
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scm {
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compatible = "qcom,msm8916", "qcom,scm";
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clocks = <&gcc GCC_CRYPTO_CLK> ,
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<&gcc GCC_CRYPTO_AXI_CLK>,
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<&gcc GCC_CRYPTO_AHB_CLK>;
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clock-names = "core", "bus", "iface";
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};
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};
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147
Documentation/devicetree/bindings/firmware/qcom,scm.yaml
Normal file
147
Documentation/devicetree/bindings/firmware/qcom,scm.yaml
Normal file
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# 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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$id: http://devicetree.org/schemas/firmware/qcom,scm.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: QCOM Secure Channel Manager (SCM)
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description: |
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Qualcomm processors include an interface to communicate to the secure firmware.
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This interface allows for clients to request different types of actions.
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These can include CPU power up/down, HDCP requests, loading of firmware,
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and other assorted actions.
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maintainers:
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- Bjorn Andersson <bjorn.andersson@linaro.org>
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- Robert Marko <robimarko@gmail.com>
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- Guru Das Srinagesh <quic_gurus@quicinc.com>
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properties:
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compatible:
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items:
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- enum:
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- qcom,scm-apq8064
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- qcom,scm-apq8084
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- qcom,scm-ipq4019
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- qcom,scm-ipq6018
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- qcom,scm-ipq806x
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- qcom,scm-ipq8074
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- qcom,scm-mdm9607
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- qcom,scm-msm8226
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- qcom,scm-msm8660
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- qcom,scm-msm8916
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- qcom,scm-msm8953
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- qcom,scm-msm8960
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- qcom,scm-msm8974
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- qcom,scm-msm8976
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- qcom,scm-msm8994
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- qcom,scm-msm8996
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- qcom,scm-msm8998
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- qcom,scm-sc7180
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- qcom,scm-sc7280
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- qcom,scm-sc8280xp
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- qcom,scm-sdm845
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- qcom,scm-sdx55
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- qcom,scm-sdx65
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- qcom,scm-sm6125
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- qcom,scm-sm6350
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- qcom,scm-sm8150
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- qcom,scm-sm8250
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- qcom,scm-sm8350
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- qcom,scm-sm8450
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- qcom,scm-qcs404
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- const: qcom,scm
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clocks:
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minItems: 1
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maxItems: 3
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clock-names:
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minItems: 1
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maxItems: 3
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interconnects:
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maxItems: 1
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interconnect-names:
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maxItems: 1
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'#reset-cells':
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const: 1
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qcom,dload-mode:
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$ref: /schemas/types.yaml#/definitions/phandle-array
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items:
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- items:
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- description: phandle to TCSR hardware block
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- description: offset of the download mode control register
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description: TCSR hardware block
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allOf:
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- if:
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properties:
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compatible:
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contains:
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enum:
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- qcom,scm-apq8064
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- qcom,scm-msm8660
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- qcom,scm-msm8960
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then:
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properties:
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clock-names:
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items:
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- const: core
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clocks:
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maxItems: 1
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required:
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- clocks
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- clock-names
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- if:
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properties:
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compatible:
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contains:
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enum:
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- qcom,scm-apq8084
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- qcom,scm-mdm9607
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- qcom,scm-msm8916
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- qcom,scm-msm8953
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- qcom,scm-msm8974
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- qcom,scm-msm8976
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then:
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properties:
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clock-names:
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items:
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- const: core
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- const: bus
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- const: iface
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clocks:
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minItems: 3
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maxItems: 3
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required:
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- clocks
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- clock-names
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required:
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- compatible
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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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firmware {
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scm {
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compatible = "qcom,scm-msm8916", "qcom,scm";
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clocks = <&gcc GCC_CRYPTO_CLK>,
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<&gcc GCC_CRYPTO_AXI_CLK>,
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<&gcc GCC_CRYPTO_AHB_CLK>;
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clock-names = "core", "bus", "iface";
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};
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};
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