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 diff --git a/Documentation/devicetree/bindings/hwrng/omap_rng.txt b/Documentation/devicetree/bindings/hwrng/omap_rng.txt
  14 new file mode 100644
  15 index 0000000..6a62acd
  16 --- /dev/null
  17 +++ b/Documentation/devicetree/bindings/hwrng/omap_rng.txt
  18 @@ -0,0 +1,22 @@
  19 +OMAP SoC HWRNG Module
  20 +
  21 +Required properties:
  22 +
  23 +- compatible : Should contain entries for this and backward compatible
  24 +  RNG versions:
  25 +  - "ti,omap2-rng" for OMAP2.
  26 +  - "ti,omap4-rng" for OMAP4, OMAP5 and AM33XX.
  27 +  Note that these two versions are incompatible.
  28 +- ti,hwmods: Name of the hwmod associated with the RNG module
  29 +- reg : Offset and length of the register set for the module
  30 +- interrupts : the interrupt number for the RNG module.
  31 +               Only used for "ti,omap4-rng".
  32 +
  33 +Example:
  34 +/* AM335x */
  35 +rng: rng@48310000 {
  36 +       compatible = "ti,omap4-rng";
  37 +       ti,hwmods = "rng";
  38 +       reg = <0x48310000 0x2000>;
  39 +       interrupts = <111>;
  40 +};
  41 diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
  42 index 9ae258e..fcb9c8e 100644
  43 --- a/arch/arm/boot/dts/am33xx.dtsi
  44 +++ b/arch/arm/boot/dts/am33xx.dtsi
  45 @@ -750,5 +750,12 @@
  46                                 <&edma 11>;
  47                         dma-names = "tx", "rx";
  48                 };
  49 +
  50 +               rng: rng@48310000 {
  51 +                       compatible = "ti,omap4-rng";
  52 +                       ti,hwmods = "rng";
  53 +                       reg = <0x48310000 0x2000>;
  54 +                       interrupts = <111>;
  55 +               };
  56
  57         };
  58  };
  59 --
  60 cgit v0.9.2