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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/qcom_bam_dma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: QCOM BAM DMA controller binding
+
+maintainers:
+ - Bhupesh Sharma <bhupesh.sharma@linaro.org>
+
+description: |
+ This document defines the binding for the BAM DMA controller
+ found on Qualcomm parts.
+
+allOf:
+ - $ref: "dma-controller.yaml#"
+
+properties:
+ compatible:
+ enum:
+ - qcom,bam-v1.3.0 # for APQ8064, IPQ8064 and MSM8960
+ - qcom,bam-v1.4.0 # for MSM8974, APQ8074 and APQ8084
+ - qcom,bam-v1.7.0 # for MSM8916
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: bam_clk
+
+ interrupts:
+ minItems: 1
+ maxItems: 31
+
+ num-channels:
+ maximum: 31
+ description:
+ Indicates supported number of DMA channels in a remotely controlled bam.
+
+ "#dma-cells":
+ const: 1
+ description: The single cell represents the channel index.
+
+ interconnects:
+ maxItems: 1
+ description:
+ Interconnect path between bam and main memory.
+
+ interconnect-names:
+ const: memory
+
+ iommus:
+ minItems: 1
+ maxItems: 8
+ description:
+ phandle(s) to apps_smmu node with sid mask.
+
+ qcom,ee:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 7
+ description:
+ Indicates the active Execution Environment identifier (0-7)
+ used in the secure world.
+
+ qcom,controlled-remotely:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Indicates that the bam is controlled by remote proccessor i.e.
+ execution environment.
+
+ qcom,powered-remotely:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Indicates that the bam is powered up by a remote processor
+ but must be initialized by the local processor.
+
+ qcom,num-ees:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 31
+ default: 2
+ description:
+ Indicates supported number of Execution Environments in a
+ remotely controlled bam.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - "#dma-cells"
+ - qcom,ee
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-msm8974.h>
+ dma-controller@f9984000 {
+ compatible = "qcom,bam-v1.4.0";
+ reg = <0xf9984000 0x15000>;
+ interrupts = <0 94 0>;
+ clocks = <&gcc GCC_BAM_DMA_AHB_CLK>;
+ clock-names = "bam_clk";
+ #dma-cells = <1>;
+ qcom,ee = <0>;
+ iommus = <&apps_smmu 0x584 0x0011>,
+ <&apps_smmu 0x586 0x0011>,
+ <&apps_smmu 0x594 0x0011>,
+ <&apps_smmu 0x596 0x0011>;
+ };