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The IP Accelerator hardware/firmware owns a sizeable region within the IMEM, named 'modem-tables', containing various packet processing configuration data. It's not actually accessed by the OS, although we have to IOMMU-map it with the IPA device, so that presumably the firmware can act upon it. Allow it as a subnode of IMEM. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Reviewed-by: Alex Elder <elder@riscstar.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Link: https://patch.msgid.link/20260302-topic-ipa_imem-v6-1-c0ebbf3eae9f@oss.qualcomm.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
114 lines
2.5 KiB
YAML
114 lines
2.5 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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$id: http://devicetree.org/schemas/sram/qcom,imem.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm IMEM memory region
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maintainers:
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- Bjorn Andersson <bjorn.andersson@linaro.org>
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description:
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Qualcomm IMEM is dedicated memory region for various debug features and DMA
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transactions.
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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,apq8064-imem
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- qcom,ipq5424-imem
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- qcom,msm8226-imem
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- qcom,msm8974-imem
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- qcom,msm8976-imem
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- qcom,qcs404-imem
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- qcom,qcs615-imem
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- qcom,qcs8300-imem
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- qcom,qdu1000-imem
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- qcom,sa8775p-imem
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- qcom,sar2130p-imem
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- qcom,sc7180-imem
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- qcom,sc7280-imem
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- qcom,sc8280xp-imem
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- qcom,sdm630-imem
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- qcom,sdm845-imem
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- qcom,sdx55-imem
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- qcom,sdx65-imem
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- qcom,sdx75-imem
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- qcom,sm6115-imem
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- qcom,sm6125-imem
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- qcom,sm6350-imem
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- qcom,sm6375-imem
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- qcom,sm7150-imem
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- qcom,sm8150-imem
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- qcom,sm8250-imem
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- qcom,sm8350-imem
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- qcom,sm8450-imem
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- qcom,sm8550-imem
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- qcom,sm8650-imem
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- qcom,sm8750-imem
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- qcom,x1e80100-imem
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- const: syscon
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- const: simple-mfd
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reg:
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maxItems: 1
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ranges: true
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'#address-cells':
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const: 1
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'#size-cells':
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const: 1
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reboot-mode:
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$ref: /schemas/power/reset/syscon-reboot-mode.yaml#
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patternProperties:
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"^modem-tables@[0-9a-f]+$":
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type: object
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description:
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Region containing packet processing configuration for the IP Accelerator.
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properties:
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reg:
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maxItems: 1
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required:
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- reg
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additionalProperties: false
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"^pil-reloc@[0-9a-f]+$":
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$ref: /schemas/remoteproc/qcom,pil-info.yaml#
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description: Peripheral image loader relocation region
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required:
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- compatible
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- reg
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additionalProperties: false
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examples:
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- |
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soc {
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#address-cells = <2>;
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#size-cells = <2>;
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sram@146bf000 {
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compatible = "qcom,sdm845-imem", "syscon", "simple-mfd";
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reg = <0 0x146bf000 0 0x1000>;
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ranges = <0 0 0x146bf000 0x1000>;
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#address-cells = <1>;
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#size-cells = <1>;
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pil-reloc@94c {
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compatible = "qcom,pil-reloc-info";
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reg = <0x94c 0xc8>;
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};
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};
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};
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