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 --- /dev/null
  21 +++ b/Documentation/devicetree/bindings/crypto/omap-aes.txt
  22 @@ -0,0 +1,31 @@
  23 +OMAP SoC AES crypto Module
  24 +
  25 +Required properties:
  26 +
  27 +- compatible : Should contain entries for this and backward compatible
  28 +  AES versions:
  29 +  - "ti,omap2-aes" for OMAP2.
  30 +  - "ti,omap3-aes" for OMAP3.
  31 +  - "ti,omap4-aes" for OMAP4 and AM33XX.
  32 +  Note that the OMAP2 and 3 versions are compatible (OMAP3 supports
  33 +  more algorithms) but they are incompatible with OMAP4.
  34 +- ti,hwmods: Name of the hwmod associated with the AES module
  35 +- reg : Offset and length of the register set for the module
  36 +- interrupts : the interrupt-specifier for the AES module.
  37 +
  38 +Optional properties:
  39 +- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
  40 +       Documentation/devicetree/bindings/dma/dma.txt
  41 +- dma-names: DMA request names should include "tx" and "rx" if present.
  42 +
  43 +Example:
  44 +       /* AM335x */
  45 +       aes: aes@53500000 {
  46 +               compatible = "ti,omap4-aes";
  47 +               ti,hwmods = "aes";
  48 +               reg = <0x53500000 0xa0>;
  49 +               interrupts = <102>;
  50 +               dmas = <&edma 6>,
  51 +                      <&edma 5>;
  52 +               dma-names = "tx", "rx";
  53 +       };
  54 --- a/arch/arm/boot/dts/am335x-bone.dts
  55 +++ b/arch/arm/boot/dts/am335x-bone.dts
  56 @@ -24,3 +24,7 @@
  57  &sham {
  58         status = "okay";
  59  };
  60 +
  61 +&aes {
  62 +       status = "okay";
  63 +};
  64 --- a/arch/arm/boot/dts/am335x-evm.dts
  65 +++ b/arch/arm/boot/dts/am335x-evm.dts
  66 @@ -528,3 +528,7 @@
  67  &sham {
  68         status = "okay";
  69  };
  70 +
  71 +&aes {
  72 +       status = "okay";
  73 +};
  74 --- a/arch/arm/boot/dts/am335x-evmsk.dts
  75 +++ b/arch/arm/boot/dts/am335x-evmsk.dts
  76 @@ -434,3 +434,7 @@
  77  &sham {
  78         status = "okay";
  79  };
  80 +
  81 +&aes {
  82 +       status = "okay";
  83 +};
  84 --- a/arch/arm/boot/dts/am33xx.dtsi
  85 +++ b/arch/arm/boot/dts/am33xx.dtsi
  86 @@ -716,5 +716,15 @@
  87                         dmas = <&edma 36>;
  88                         dma-names = "rx";
  89                 };
  90 +
  91 +               aes: aes@53500000 {
  92 +                       compatible = "ti,omap4-aes";
  93 +                       ti,hwmods = "aes";
  94 +                       reg = <0x53500000 0xa0>;
  95 +                       interrupts = <102>;
  96 +                       dmas = <&edma 6>,
  97 +                              <&edma 5>;
  98 +                       dma-names = "tx", "rx";
  99 +               };
 100         };
 101  };