Need device tree binaries for AM335x

TI Lady

We face issues with configuration of the environment before we can try booting the kernel. We also have unresolved issues with the Real Time Clock; these may be hardware-related.

We’re now looking into how u-boot uses information from the Device Tree Binary file in order to map external peripherals. TI’s distribution in the SDK includes Device Tree Source files, but not the equivalent binaries. Any links to information on this topic would be greatly appreciated.

Thanks,

over 10 years ago

0 Biser Gatchev-XID over 10 years ago

TI__Guru**** 393215 points

Hi,

Which SDK are you asking about?

0 Georgi Karpov over 10 years ago

Expert 1185 points

Hi,

This link can be helpful for you:

www.devicetree.org/Device_Tree_Usage

Concerning u-boot and device tree:

http://www.denx.de/wiki/view/DULG/LinuxFDTBlob

In SDK 7 and 8 .dtb files are included in board-support/prebuilt-images directory.

.dtb and .dts files for your board architecture, after you compile the kernel, could be found in ti-sdk-<yourversion>/board-support/linux-<yourversion>/arch/<yourarch>/boot/dts/

However, if there are no .dtb files as in SDK 6, .dts files could be compiled to .dtb using device tree compiler - dtc.
Here it is described:
http://www.informit.com/articles/article.aspx?p=1647051&seqNum=5

Best regards,
Georgi

0 TI Lady over 10 years ago in reply to Biser Gatchev-XID

Genius 4025 points

HI there,

here is the SDK they are using.

http://software-dl.ti.com/sitara_linux/esd/AM335xSDK/latest/exports/ti-sdk-am335x-evm-08.00.00.00-Linux-x86-Install.bin

0 TI Lady over 10 years ago in reply to TI Lady

Genius 4025 points

Anything on this TI'ers?
thanks,

0 Ivan Matrakov over 10 years ago in reply to TI Lady

TI__Expert 4475 points

Hi,

The device tree binaries for AM335x is located in a same places where the source file. If you are want to use (for example) <>/ti-sdk-am335x-evm-08.00.00.00/board-support/linux-3.14.26-g2489c02/arch/arm/boot/dts/am335x-evm.dts you will find in a same place .../am335x-evm.dtb file. But I suppose that you are not found this binary because you didn't build it. To be building you can type:
make am335x-evm.dtb - this is for DT file
make -j4 zImage - this is for kernel
make modules - this is for modules

BR
Ivan

Processors

Processors forum

Need device tree binaries for AM335x