linux/Documentation/devicetree/bindings/arm/insignal-boards.txt
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Prefs
   1* Insignal's Exynos4210 based Origen evaluation board
   2
   3Origen low-cost evaluation board is based on Samsung's Exynos4210 SoC.
   4
   5Required root node properties:
   6    - compatible = should be one or more of the following.
   7        (a) "samsung,smdkv310" - for Samsung's SMDKV310 eval board.
   8        (b) "samsung,exynos4210"  - for boards based on Exynos4210 SoC.
   9