Documentation/devicetree/bindings/arm/qcom.txt

   1 QCOM device tree bindings
   2 -------------------------
   3
   4 Some qcom based bootloaders identify the dtb blob based on a set of
   5 device properties like SoC and platform and revisions of those components.
   6 To support this scheme, we encode this information into the board compatible
   7 string.
   8
   9 Each board must specify a top-level board compatible string with the following
  10 format:
  11
  12         compatible = "qcom,<SoC>[-<soc_version>][-<foundry_id>]-<board>[/<subtype>][-<board_version>]"
  13
  14 The 'SoC' and 'board' elements are required. All other elements are optional.
  15
  16 The 'SoC' element must be one of the following strings:
  17
  18         apq8016
  19         apq8074
  20         apq8084
  21         apq8096
  22         msm8916
  23         msm8974
  24         msm8992
  25         msm8994
  26         msm8996
  27
  28 The 'board' element must be one of the following strings:
  29
  30         cdp
  31         liquid
  32         dragonboard
  33         mtp
  34         sbc
  35
  36 The 'soc_version' and 'board_version' elements take the form of v<Major>.<Minor>
  37 where the minor number may be omitted when it's zero, i.e.  v1.0 is the same
  38 as v1. If all versions of the 'board_version' elements match, then a
  39 wildcard '*' should be used, e.g. 'v*'.
  40
  41 The 'foundry_id' and 'subtype' elements are one or more digits from 0 to 9.
  42
  43 Examples:
  44
  45         "qcom,msm8916-v1-cdp-pm8916-v2.1"
  46
  47 A CDP board with an msm8916 SoC, version 1 paired with a pm8916 PMIC of version
  48 2.1.
  49
  50         "qcom,apq8074-v2.0-2-dragonboard/1-v0.1"
  51
  52 A dragonboard board v0.1 of subtype 1 with an apq8074 SoC version 2, made in
  53 foundry 2.