1 files changed, 31 insertions, 1 deletions

diff --git a/Documentation/powerpc/dts-bindings/fsl/board.txt b/Documentation/powerpc/dts-bindings/fsl/board.txt
index 81a917ef96e9..6c974d28eeb4 100644
--- a/Documentation/powerpc/dts-bindings/fsl/board.txt
+++ b/Documentation/powerpc/dts-bindings/fsl/board.txt
@@ -18,7 +18,7 @@ This is the memory-mapped registers for on board FPGA.
 
 Required properities:
 - compatible : should be "fsl,fpga-pixis".
-- reg : should contain the address and the lenght of the FPPGA register
+- reg : should contain the address and the length of the FPPGA register
   set.
 
 Example (MPC8610HPCD):
@@ -27,3 +27,33 @@ Example (MPC8610HPCD):
                 compatible = "fsl,fpga-pixis";
                 reg = <0xe8000000 32>;
         };
+
+* Freescale BCSR GPIO banks
+
+Some BCSR registers act as simple GPIO controllers, each such
+register can be represented by the gpio-controller node.
+
+Required properities:
+- compatible : Should be "fsl,<board>-bcsr-gpio".
+- reg : Should contain the address and the length of the GPIO bank
+  register.
+- #gpio-cells : Should be two. The first cell is the pin number and the
+  second cell is used to specify optional paramters (currently unused).
+- gpio-controller : Marks the port as GPIO controller.
+
+Example:
+
+        bcsr@1,0 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                compatible = "fsl,mpc8360mds-bcsr";
+                reg = <1 0 0x8000>;
+                ranges = <0 1 0 0x8000>;
+
+                bcsr13: gpio-controller@d {
+                        #gpio-cells = <2>;
+                        compatible = "fsl,mpc8360mds-bcsr-gpio";
+                        reg = <0xd 1>;
+                        gpio-controller;
+                };
+        };