215 lines
5.1 KiB
YAML
215 lines
5.1 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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$id: http://devicetree.org/schemas/firmware/qcom,scm.yaml#
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$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-ipq5018
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- qcom,scm-ipq5332
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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-ipq9574
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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-qcm2290
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- qcom,scm-qdu1000
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- qcom,scm-sa8775p
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- qcom,scm-sc7180
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- qcom,scm-sc7280
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- qcom,scm-sc8180x
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- qcom,scm-sc8280xp
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- qcom,scm-sdm670
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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-sdx75
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- qcom,scm-sm6115
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- qcom,scm-sm6125
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- qcom,scm-sm6350
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- qcom,scm-sm6375
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- qcom,scm-sm7150
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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-sm8550
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- qcom,scm-sm8650
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- qcom,scm-qcs404
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- qcom,scm-x1e80100
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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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dma-coherent: true
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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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interrupts:
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description:
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The wait-queue interrupt that firmware raises as part of handshake
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protocol to handle sleeping SCM calls.
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maxItems: 1
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qcom,sdi-enabled:
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description:
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Indicates that the SDI (Secure Debug Image) has been enabled by TZ
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by default and it needs to be disabled.
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If not disabled WDT assertion or reboot will cause the board to hang
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in the debug mode.
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type: boolean
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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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# Clocks
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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-apq8084
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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-qcm2290
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- qcom,scm-sm6375
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then:
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required:
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- clocks
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- clock-names
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else:
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properties:
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clock-names: false
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clocks: false
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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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- qcom,scm-qcm2290
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- qcom,scm-sm6375
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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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- 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-msm8226
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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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# Interrupts
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- if:
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not:
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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-sm8450
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- qcom,scm-sm8550
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- qcom,scm-sm8650
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then:
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properties:
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interrupts: false
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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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