Compile u-boot for am335x on 64 bit Ubuntu

Sujan Nag1

Hello all,

We are working on AM335x processor, for reference we have both AM335x GPEVM and TI-SK as well.

It is required to build u-boot on ubuntu 14.04 64 bit OS. We are working taking ti-sdk-am335x-evm-06.00.00.00 as reference.

I am unable to build u-boot on ubuntu 14.04, mkimage gives errors, whereas same sdk in installed on ubuntu 10.04 32 bit OS, it compiles, without any errors.

I have also installed uboot-mkimage and uboot-envtools for 64 bit, still i am unable to compile on 64 bit.

Here are the logs:

/home/sujan/ti-sdk-am335x-evm-06.00.00.00/board-support/u-boot-2013.01.01-psp06.00.00.00/am335x/tools/mkimage: Can't stat /home/sujan/ti-sdk-am335x-evm-06.00.00.00/board-support/u-boot-2013.01.01-psp06.00.00.00/am335x/spl/u-boot-spl.bin: Invalid argument
make[2]: *** [/home/sujan/ti-sdk-am335x-evm-06.00.00.00/board-support/u-boot-2013.01.01-psp06.00.00.00/am335x/MLO] Error 1
make[2]: Leaving directory `/home/sujan/ti-sdk-am335x-evm-06.00.00.00/board-support/u-boot-2013.01.01-psp06.00.00.00/spl'
make[1]: *** [/home/sujan/ti-sdk-am335x-evm-06.00.00.00/board-support/u-boot-2013.01.01-psp06.00.00.00/am335x/spl/u-boot-spl.bin] Error 2
make[1]: Leaving directory `/home/sujan/ti-sdk-am335x-evm-06.00.00.00/board-support/u-boot-2013.01.01-psp06.00.00.00'

Can the experts out there please guide me to get this working.

Thanks and regards

Sujan

over 10 years ago

0 Biser Gatchev-XID over 10 years ago

TI__Guru**** 393215 points

Hi Sujan,

Please check this thread (and links in it) to see if you can solve your problem: http://e2e.ti.com/support/arm/sitara_arm/f/791/t/237546.aspx

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

TI__Guru**** 393215 points

Also see this wiki: http://processors.wiki.ti.com/index.php/Sitara_Linux_SDK_64_Bit_Ubuntu_Support

0 Sujan Nag1 over 10 years ago in reply to Biser Gatchev-XID

Prodigy 190 points

Hello Biser,

Thanks for the inputs, but I am afraid the above posts didnt answer my query.

I had already installed all the packages as mentioned in "Sitara Linux SDK 64 Bit Ubuntu Support".

I am using the following command for compilation:

make O=am335x CROSS_COMPILE=arm-linux-gnueabihf- ARCH=arm am335x_evm

Could the reason be that the mkimage binary inside tools folder is pre-compiled for 32 bit?

Regards

Sujan

0 Ivan Matrakov over 10 years ago in reply to Sujan Nag1

TI__Expert 4475 points

Hi Sujan,

After installation of SDK 6.0 you have to run: sudo <SDK_folder>/bin/setup-package-install.sh script that will install some needed packages to your host linux system (if you forgot to do this).
Next:
1. cd <SDK_folder>/ti-sdk-am335x-evm-06.00.00.00/board-support/u-boot-2013.01.01-psp06.00.00.00$
2. export ARCH=arm
3. export CROSS_COMPILE=~/ti-sdk-am335x-evm-06.00.00.00/linux-devkit/sysroots/i686-arago-linux/usr/bin/arm-linux-gnueabihf-
4. make am335x_evm

BR
Ivan

0 Sujan Nag1 over 10 years ago in reply to Sujan Nag1

Prodigy 190 points

Hello Biser,

I was successfully able to compile u-boot, by doing some minor modifications in the u-boot Makefile and SPL Makefile, not quite sure why its behaving as such, may be you can throw some light on it.

I changed $(obj)tools/mkimage to mkimage in Makefile of u-boot line 463,

Similarly changed Makefile of spl, in line 139 and 143 to mkimage.

Regards

Sujan

0 Sujan Nag1 over 10 years ago in reply to Ivan Matrakov

Prodigy 190 points

Hello Ivan,

Thanks for the response. I was able to compile u-boot successfully.

I must say I didn't clearly understood the reason, can you please explain the magic?

Regards

Sujan

0 Ivan Matrakov over 10 years ago in reply to Sujan Nag1

TI__Expert 4475 points

Hi Sujan,

It's a good that you can build the u-boot, but I think that it's not good idea to make changes in a Makefile. I'll try to explain the following line from the previous post:

2. export ARCH=arm
3. export CROSS_COMPILE=~/ti-sdk-am335x-evm-06.00.00.00/linux-devkit/sysroots/i686-arago-linux/usr/bin/arm-linux-gnueabihf-
4. make am335x_evm

With 2. we tell on the toolchain the architecture of the processor.
With 3. we tell which compiler we use and where is his places.
With 4. we compile just our board. The name is am335x_evm. In the directory include/configs/ you can see that packets support too many board, and this way we choose exactly our board.

Other way to explain this is:

export CROSS_COMPILE=arm-linux-gnueabihf-
export ARCH=arm
export PATH=$PATH:$HOME/ti-sdk-am335x-evm-06.00.00.00/linux-devkit/sysroots/i686-arago-linux/usr/bin

Ivan

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Compile u-boot for am335x on 64 bit Ubuntu