1 files changed, 18 insertions, 1 deletions

diff --git a/Documentation/powerpc/dts-bindings/mtd-physmap.txt b/Documentation/powerpc/dts-bindings/mtd-physmap.txt
index cd474f9aef39..667c9bde8699 100644
--- a/Documentation/powerpc/dts-bindings/mtd-physmap.txt
+++ b/Documentation/powerpc/dts-bindings/mtd-physmap.txt
@@ -5,7 +5,9 @@ file systems on embedded devices.
 
  - compatible : should contain the specific model of flash chip(s)
    used, if known, followed by either "cfi-flash" or "jedec-flash"
- - reg : Address range of the flash chip
+ - reg : Address range(s) of the flash chip(s)
+   It's possible to (optionally) define multiple "reg" tuples so that
+   non-identical NOR chips can be described in one flash node.
  - bank-width : Width (in bytes) of the flash bank.  Equal to the
    device width times the number of interleaved chips.
  - device-width : (optional) Width of a single flash chip.  If
@@ -61,3 +63,18 @@ Example:
                         read-only;
                 };
         };
+
+Here an example with multiple "reg" tuples:
+
+        flash@f0000000,0 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                compatible = "intel,PC48F4400P0VB", "cfi-flash";
+                reg = <0 0x00000000 0x02000000
+                       0 0x02000000 0x02000000>;
+                bank-width = <2>;
+                partition@0 {
+                        label = "test-part1";
+                        reg = <0 0x04000000>;
+                };
+        };