diff --git a/Documentation/boards/imx/Karo-TX6 b/Documentation/boards/imx/Karo-TX6
deleted file mode 100644
index 8dd26b5..0000000
--- a/Documentation/boards/imx/Karo-TX6
+++ /dev/null
@@ -1,13 +0,0 @@
-KaRo TX6x
-=========
-
-This CPU cards are based on a Freescale i.MX6 SoC.
-There are currently six variants of this module, that are distinguished
-by the suffix: 'Q' use an i.MX6Q and 'U' an i.MX6DL.
-
-The TX6U-801x modules are shipped with:
-
-  * 128MiB NAND flash
-  * 1024MiB DDR3 SDRAM
-
-see http://www.karo-electronics.de/tx6.html for more information
diff --git a/Documentation/boards/imx/Karo-TX6.rst b/Documentation/boards/imx/Karo-TX6.rst
new file mode 100644
index 0000000..8dd26b5
--- /dev/null
+++ b/Documentation/boards/imx/Karo-TX6.rst
@@ -0,0 +1,13 @@
+KaRo TX6x
+=========
+
+This CPU cards are based on a Freescale i.MX6 SoC.
+There are currently six variants of this module, that are distinguished
+by the suffix: 'Q' use an i.MX6Q and 'U' an i.MX6DL.
+
+The TX6U-801x modules are shipped with:
+
+  * 128MiB NAND flash
+  * 1024MiB DDR3 SDRAM
+
+see http://www.karo-electronics.de/tx6.html for more information