How to use .dts file for Kernel Image Compilation

[aperez@igalia.com (Adrian Perez de Castro)]

Hello,

Prabhakar Lad <prabhakar.csengg@gmail.com> writes:

> On Wed, Jan 22, 2014 at 3:41 PM, sanchayan maity
> <victorascroft@gmail.com> wrote:
>>
>> I want to know if this is the correct way of specifying a device tree file
>> for which .dtb has been generated?
>>
>> The kernel version for which i am trying to do this is 3.12.6.
>>
> If your configuration supports (defconfig) DT booting for your platform you
> can build .dtb by just replacing the "uImage" to "dtbs" in the command what you
> used for building the uImage.
>
> Note:- For DT booting there should be also support in the U-Boot.

Alternatively, if your U-Boot does not support loading a DT, you can
enable the ARM_APPENDED_DTB option in the kernel, and append the .dtb
file to your kernel image, like this:

  cat path/to/zImage path/to/board.dtb > zImageWithDT

The resulting file can be passed to U-Boot's ?mkimage? as a normal
kernel. With this options, if the kernel detects that a DT has
already been loaded by the bootloader, it will use it, otherwise
it will try to read the .dtb file that has been appended to it.

Cheers,


-Adrian
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