board/chromebook/snow/linux-4.6-dts-tpm.patch

   1 Some versions of u-boot for this Chromebook check for tpm node
   2 in the device tree and fail badly (reboot) if it is not found.
   3
   4 While not exactly correct, it is much easier to patch the mainline
   5 device tree to match u-boot expectations than to fix u-boot on
   6 this device.
   7
   8 See https://code.google.com/p/chromium/issues/detail?id=220169
   9 and https://lkml.org/lkml/2013/3/4/242
  10
  11 Signed-off-by: Alex Suykov <alex.suykov@gmail.com>
  12
  13 --- a/arch/arm/boot/dts/exynos5250-snow-common.dtsi
  14 +++ b/arch/arm/boot/dts/exynos5250-snow-common.dtsi
  15 @@ -466,6 +466,11 @@
  16         status = "okay";
  17         samsung,i2c-sda-delay = <100>;
  18         samsung,i2c-max-bus-freq = <66000>;
  19 +
  20 +       tpm {
  21 +               compatible = "infineon,slb9635tt";
  22 +               reg = <0x20>;
  23 +       };
  24  };
  25
  26  &i2c_5 {
  27