Rebuilding PSP 2.0 from source with bitbake

John F.

Hello,

I'd like to reproduce the kernel and root filesystem binaries from the PSP 2 release. Since this looks like an angstrom distro, I set up OpenEmbedded and bitbake, specified argstrom, the 35xevm, and the CodeSourcery toolchain with these lines in local.conf:

DISTRO = "angstrom-2008.1"
MACHINE = "omap3evm"

TARGET_PREFIX = arm-none-linux-gnueabi-
ASSUME_PROVIDED += "virtual/${TARGET_PREFIX}gcc virtual/libc"

and then built a few packages. When I do "bitbake virtual/kernel" it builds a 2.6.27 kernel, but the PSP 2.0 kernel Makefile shows a version number of 2.6.26, so I must be using the wrong target, distro, or there are other config files used for building the PSP.

I'm wondering if there already exist instructions for doing a full from-source build using bitbake to get simialr state as the PSP 02.00.

Thanks!

over 16 years ago

0 BrandonAzbell over 16 years ago

TI__Guru 64480 points

I don't believe the OMAP35x Linux PSP Release 02.00.00.01 obtained from https://www-a.ti.com/downloads/sds_support/targetcontent/psp/omap35x/index.html is an Angstrom distro, nor uses bitbake to build. There is an OE/Angstrom recipe for the BeagleBoard.

The instructions to build the Linux PSP are found in the PSP Driver User Guide found at the above link along with the .tgz for the PSP. The toolchain used is the Code Sourcery toolchain 2008-q1.

0 John F. over 16 years ago in reply to BrandonAzbell

Intellectual 830 points

When I booted using binary kernel and root filesystem from PSP 02, I saw a large "Angstrom" banner on the console, so I assumed that it was built with OpenEmbedded.

I did see the instructions for rebuilding the kernel and bootloaders in the PSP docs, but not the instructions for the rest of the system's libraries and userspace packages. If it's there, I'll have another look. I have been working on rebuilding from scratch using bitbake and OpenEmbedded and it builds the 2009-q1 toolchain (still in process).

Thanks!

John

0 Juan Gonzales over 16 years ago in reply to John F.

TI__Mastermind 37340 points

John,

Brandon is correct; our PSP (DVSDK) releases do not use bitbake or openembedded. I do believe there is internal research going on in this area so any lessons learned you an share from your side/efforts would be welcomed.

Kind Regards

Juan

0 John F. over 16 years ago in reply to Juan Gonzales

Intellectual 830 points

So far, I have run into a couple of toolchain problems. I tried using the CodeSourcery 2008q1 toolchain as specified on the PSP2 download page, but OpenEmbedded seems to prefer building its own tools from source (fails to find libc libraries).

Specifying "4.2.3+csl-arm-2008q1-126" (which built from source) or "4.4.0" for the toolchain in oe local.conf ran into assembler errors "offset out of range" when building libxml.

0 John F. over 16 years ago in reply to John F.

Intellectual 830 points

By the way, the PSP ReleaseNotes_02.00.00.01.pdf on page 2 say the NFS root file system was "built using OpenEmbedded based Arago". It would be nice if there were instructions on how to recreate the file system, but I can't see anything besides bootloader and kernel build instructions in the PSP UserGuide.

Thanks!,

John

0 Steve Kipisz over 16 years ago in reply to John F.

TI__Genius 15510 points

Look at the arago-project.org site for more info. Try the instructions here http://arago-project.org/wiki/index.php/Setting_Up_Build_Environment. I haven' t tried them yet.

Steve K.

0 John F. over 16 years ago in reply to Steve Kipisz

Intellectual 830 points

Thanks for the suggestion. I was able to create a kernel and root file system, but get a kernel panic in musb_platform_init() when booting. Is there a mailing list for Arago?

John

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Rebuilding PSP 2.0 from source with bitbake