target/linux/omap/patches-3.12/301-ARM-dts-AM33XX-Add-AES-data-and-documentation.patch

   1 Add the generic AM33XX AES module's device tree data and
   2 enable it for the am335x-evm, am335x-evmsk, and am335x-bone
   3 platforms.  Also add Documentation file describing the data
   4 for the AES module.
   5
   6 [joelf@ti.com: Dropped interrupt-parent propert, documentation fixups]
   7
   8 CC: Paul Walmsley <paul@pwsan.com>
   9 Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
  10
  11 ---
  12 .../devicetree/bindings/crypto/omap-aes.txt        | 31 ++++++++++++++++++++++
  13  arch/arm/boot/dts/am335x-bone.dts                  |  4 +++
  14  arch/arm/boot/dts/am335x-evm.dts                   |  4 +++
  15  arch/arm/boot/dts/am335x-evmsk.dts                 |  4 +++
  16  arch/arm/boot/dts/am33xx.dtsi                      | 10 +++++++
  17  5 files changed, 53 insertions(+)
  18  create mode 100644 Documentation/devicetree/bindings/crypto/omap-aes.txt
  19
  20 diff --git a/Documentation/devicetree/bindings/crypto/omap-aes.txt b/Documentation/devicetree/bindings/crypto/omap-aes.txt
  21 new file mode 100644
  22 index 0000000..fd97176
  23 --- /dev/null
  24 +++ b/Documentation/devicetree/bindings/crypto/omap-aes.txt
  25 @@ -0,0 +1,31 @@
  26 +OMAP SoC AES crypto Module
  27 +
  28 +Required properties:
  29 +
  30 +- compatible : Should contain entries for this and backward compatible
  31 +  AES versions:
  32 +  - "ti,omap2-aes" for OMAP2.
  33 +  - "ti,omap3-aes" for OMAP3.
  34 +  - "ti,omap4-aes" for OMAP4 and AM33XX.
  35 +  Note that the OMAP2 and 3 versions are compatible (OMAP3 supports
  36 +  more algorithms) but they are incompatible with OMAP4.
  37 +- ti,hwmods: Name of the hwmod associated with the AES module
  38 +- reg : Offset and length of the register set for the module
  39 +- interrupts : the interrupt-specifier for the AES module.
  40 +
  41 +Optional properties:
  42 +- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
  43 +       Documentation/devicetree/bindings/dma/dma.txt
  44 +- dma-names: DMA request names should include "tx" and "rx" if present.
  45 +
  46 +Example:
  47 +       /* AM335x */
  48 +       aes: aes@53500000 {
  49 +               compatible = "ti,omap4-aes";
  50 +               ti,hwmods = "aes";
  51 +               reg = <0x53500000 0xa0>;
  52 +               interrupts = <102>;
  53 +               dmas = <&edma 6>,
  54 +                      <&edma 5>;
  55 +               dma-names = "tx", "rx";
  56 +       };
  57 diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
  58 index 8a9802e..94ee427 100644
  59 --- a/arch/arm/boot/dts/am335x-bone.dts
  60 +++ b/arch/arm/boot/dts/am335x-bone.dts
  61 @@ -23,3 +23,7 @@
  62  &sham {
  63         status = "okay";
  64  };
  65 +
  66 +&aes {
  67 +       status = "okay";
  68 +};
  69 diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
  70 index d59e51c..86463fa 100644
  71 --- a/arch/arm/boot/dts/am335x-evm.dts
  72 +++ b/arch/arm/boot/dts/am335x-evm.dts
  73 @@ -526,3 +526,7 @@
  74  &sham {
  75         status = "okay";
  76  };
  77 +
  78 +&aes {
  79 +       status = "okay";
  80 +};
  81 diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
  82 index d45a330..f577e65 100644
  83 --- a/arch/arm/boot/dts/am335x-evmsk.dts
  84 +++ b/arch/arm/boot/dts/am335x-evmsk.dts
  85 @@ -428,3 +428,7 @@
  86  &sham {
  87         status = "okay";
  88  };
  89 +
  90 +&aes {
  91 +       status = "okay";
  92 +};
  93 diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
  94 index 299710b..2664da9 100644
  95 --- a/arch/arm/boot/dts/am33xx.dtsi
  96 +++ b/arch/arm/boot/dts/am33xx.dtsi
  97 @@ -719,5 +719,15 @@
  98                         dmas = <&edma 36>;
  99                         dma-names = "rx";
 100                 };
 101 +
 102 +               aes: aes@53500000 {
 103 +                       compatible = "ti,omap4-aes";
 104 +                       ti,hwmods = "aes";
 105 +                       reg = <0x53500000 0xa0>;
 106 +                       interrupts = <102>;
 107 +                       dmas = <&edma 6>,
 108 +                              <&edma 5>;
 109 +                       dma-names = "tx", "rx";
 110 +               };
 111         };
 112  };