of: documentation: add bindings documentation for TS-7970

This adds the documentation for the TS-7970 by Technologic Systems.

Signed-off-by: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/Documentation/devicetree/bindings/arm/technologic.txt b/Documentation/devicetree/bindings/arm/technologic.txt
index 33797acad8461068cbbf8846977a60af783e0abb..187830bd4f515c3884a14b1daaeac474d9edd5de 100644 (file)
--- a/Documentation/devicetree/bindings/arm/technologic.txt
+++ b/Documentation/devicetree/bindings/arm/technologic.txt
@@ -10,3 +10,9 @@ It can be mounted on a carrier board providing additional peripheral connectors.
 Required root node properties:
        - compatible = "technologic,imx6dl-ts4900", "fsl,imx6dl"
        - compatible = "technologic,imx6q-ts4900", "fsl,imx6q"
+
+TS-7970 is a System-on-Module based on the Freescale i.MX6 System-on-Chip.
+It can be mounted on a carrier board providing additional peripheral connectors.
+Required root node properties:
+       - compatible = "technologic,imx6dl-ts7970", "fsl,imx6dl"
+       - compatible = "technologic,imx6q-ts7970", "fsl,imx6q"