52 lines
1.3 KiB
Plaintext
52 lines
1.3 KiB
Plaintext
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QCOM device tree bindings
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-------------------------
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Some qcom based bootloaders identify the dtb blob based on a set of
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device properties like SoC and platform and revisions of those components.
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To support this scheme, we encode this information into the board compatible
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string.
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Each board must specify a top-level board compatible string with the following
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format:
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compatible = "qcom,<SoC>[-<soc_version>][-<foundry_id>]-<board>[/<subtype>][-<board_version>]"
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The 'SoC' and 'board' elements are required. All other elements are optional.
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The 'SoC' element must be one of the following strings:
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apq8016
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apq8074
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apq8084
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apq8096
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msm8916
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msm8974
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msm8996
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The 'board' element must be one of the following strings:
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cdp
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liquid
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dragonboard
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mtp
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sbc
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The 'soc_version' and 'board_version' elements take the form of v<Major>.<Minor>
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where the minor number may be omitted when it's zero, i.e. v1.0 is the same
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as v1. If all versions of the 'board_version' elements match, then a
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wildcard '*' should be used, e.g. 'v*'.
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The 'foundry_id' and 'subtype' elements are one or more digits from 0 to 9.
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Examples:
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"qcom,msm8916-v1-cdp-pm8916-v2.1"
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A CDP board with an msm8916 SoC, version 1 paired with a pm8916 PMIC of version
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2.1.
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"qcom,apq8074-v2.0-2-dragonboard/1-v0.1"
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A dragonboard board v0.1 of subtype 1 with an apq8074 SoC version 2, made in
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foundry 2.
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