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51 lines
1.3 KiB
51 lines
1.3 KiB
Qualcomm Remote File System Memory binding |
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This binding describes the Qualcomm remote filesystem memory, which serves the |
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purpose of describing the shared memory region used for remote processors to |
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access block device data using the Remote Filesystem protocol. |
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- compatible: |
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Usage: required |
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Value type: <stringlist> |
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Definition: must be: |
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"qcom,rmtfs-mem" |
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- reg: |
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Usage: required for static allocation |
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Value type: <prop-encoded-array> |
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Definition: must specify base address and size of the memory region, |
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as described in reserved-memory.txt |
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- size: |
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Usage: required for dynamic allocation |
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Value type: <prop-encoded-array> |
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Definition: must specify a size of the memory region, as described in |
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reserved-memory.txt |
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- qcom,client-id: |
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Usage: required |
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Value type: <u32> |
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Definition: identifier of the client to use this region for buffers. |
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- qcom,vmid: |
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Usage: optional |
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Value type: <u32> |
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Definition: vmid of the remote processor, to set up memory protection. |
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= EXAMPLE |
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The following example shows the remote filesystem memory setup for APQ8016, |
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with the rmtfs region for the Hexagon DSP (id #1) located at 0x86700000. |
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reserved-memory { |
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#address-cells = <2>; |
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#size-cells = <2>; |
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ranges; |
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rmtfs@86700000 { |
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compatible = "qcom,rmtfs-mem"; |
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reg = <0x0 0x86700000 0x0 0xe0000>; |
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no-map; |
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qcom,client-id = <1>; |
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}; |
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};
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