target/linux/omap/patches-3.12/808-ARM_dts_AM33xx_Add_RNG_node.patch

   1 From ed845d6b78bf32b396f7f1278eed0b87446934b1 Mon Sep 17 00:00:00 2001
   2 From: Lokesh Vutla <lokeshvutla@ti.com>
   3 Date: Thu, 29 Aug 2013 12:52:09 +0000
   4 Subject: ARM: dts: AM33xx: Add RNG node
   5
   6 Add the AM33xx RNG module's device tree data.
   7 Also add Documentation file describing the data
   8 for the RNG module.
   9
  10 Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
  11 Signed-off-by: Tony Lindgren <tony@atomide.com>
  12 ---
  13 --- /dev/null
  14 +++ b/Documentation/devicetree/bindings/hwrng/omap_rng.txt
  15 @@ -0,0 +1,22 @@
  16 +OMAP SoC HWRNG Module
  17 +
  18 +Required properties:
  19 +
  20 +- compatible : Should contain entries for this and backward compatible
  21 +  RNG versions:
  22 +  - "ti,omap2-rng" for OMAP2.
  23 +  - "ti,omap4-rng" for OMAP4, OMAP5 and AM33XX.
  24 +  Note that these two versions are incompatible.
  25 +- ti,hwmods: Name of the hwmod associated with the RNG module
  26 +- reg : Offset and length of the register set for the module
  27 +- interrupts : the interrupt number for the RNG module.
  28 +               Only used for "ti,omap4-rng".
  29 +
  30 +Example:
  31 +/* AM335x */
  32 +rng: rng@48310000 {
  33 +       compatible = "ti,omap4-rng";
  34 +       ti,hwmods = "rng";
  35 +       reg = <0x48310000 0x2000>;
  36 +       interrupts = <111>;
  37 +};
  38 --- a/arch/arm/boot/dts/am33xx.dtsi
  39 +++ b/arch/arm/boot/dts/am33xx.dtsi
  40 @@ -770,5 +770,12 @@
  41                         dma-names = "tx", "rx";
  42                 };
  43
  44 +               rng: rng@48310000 {
  45 +                       compatible = "ti,omap4-rng";
  46 +                       ti,hwmods = "rng";
  47 +                       reg = <0x48310000 0x2000>;
  48 +                       interrupts = <111>;
  49 +               };
  50 +
  51         };
  52  };