Linux: Processor SDK Linux / Update Kernel

Buggy

Tool/software: Linux

Hi,

the latest Processor SDK comes with Linux 4.4.41. I would like to use Linux 4.11. How can I achieve this within the Yocto project?

Best regards

over 8 years ago

0 Kemal R. Shakir over 8 years ago

TI__Guru 55345 points

Hello Mathieu,

Try this:
cd <tisdk>/sources/meta-processor-sdk/recipes-kernel/linux/
cp linux-processor-sdk-4.4 linux-processor-sdk-4.11
cp linux-processor-sdk_4.4.bb linux-processor-sdk_4.11.bb
mv linux-processor-sdk_4.4.bb linux-processor-sdk_4.4.bb.bak
mv linux-processor-sdk-rt_4.4.bb linux-processor-sdk-rt_4.4.bb.bak

Change these lines in linux-processor-sdk_4.11.bb.

FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}-4.4:"
to
FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}-4.11:"

and

BRANCH = "processor-sdk-linux-03.02.00"

SRCREV = "adde2ca9f86797071f6e7b2b9e779fa5e4a8f3cd"
PV = "4.4.32+git${SRCPV}"

to

BRANCH = "linux-master"

SRCREV = "a351e9b9fc24e982ec2f0e76379a49826036da12"
PV = "4.11+git${SRCPV}"

and

KERNEL_GIT_URI = "git://git.ti.com/processor-sdk/processor-sdk-linux.git"

KERNEL_GIT_URI = "git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git"

Then bitbake.

Best regards,
Kemal

0 Buggy over 8 years ago in reply to Kemal R. Shakir

Intellectual 265 points

Hi Kemal,
many thanks for your help. But when I execute bitbake virtual/kernel or bitbake tisdk-rootfs-image it still uses 4.4.41. Do I have to change the local.conf or something else?

Best regards,
Mathieu

0 Kemal R. Shakir over 8 years ago in reply to Buggy

TI__Guru 55345 points

No, just rename the linux-processor-sdk_4.4.bb recipes at <tisdk>/sources/meta-processor-sdk/recipes-kernel/linux/ directory.

0 Buggy over 8 years ago in reply to Kemal R. Shakir

Intellectual 265 points

I have strictly followed your instructions. It still uses 4.4.41. Perhaps do I have to change the recipes in meta-ti?

0 Kemal R. Shakir over 8 years ago in reply to Buggy

TI__Guru 55345 points

Yes, if you are building one of the older SDK's the source will be taken from meta-ti.

0 Buggy over 8 years ago in reply to Kemal R. Shakir

Intellectual 265 points

I think I'm using the latest one.
At the beginning, I executed
./oe-layertool-setup.sh -f configs/processor-sdk/processor-sdk-03.03.00.04-config.txt
Is this correct?

0 Kemal R. Shakir over 8 years ago in reply to Buggy

TI__Guru 55345 points

Yes this is the correct one. Try to clean the project. Re-downloading the sources will take a while but it should fix that mismatch.
MACHINE=am335x-evm bitbake linux-processor-sdk -c cleanall

0 Buggy over 8 years ago in reply to Kemal R. Shakir

Intellectual 265 points

Thanks, after executing MACHINE=am57xx-evm bitbake linux-processor-sdk -c cleanall, I'm getting the error:
Nothing provides "linux-processor-sdk"
linux-processor-sdk was skipped: PREFFERED_PROVIDER_virtual/kernel set to linux-ti-staging, not linux-processor-sdk

Adding PREFFERED_PROVIDER_virtual/kernel = "linux-processor-sdk" doesn't help.

0 Kemal R. Shakir over 8 years ago in reply to Buggy

TI__Guru 55345 points

Since you are building for am57xx-evm platform you have to type linux-ti-staging instead of linux-processor-sdk and enter the changes in linux-ti-staging recipes.

0 Buggy over 8 years ago in reply to Kemal R. Shakir

Intellectual 265 points

With the same changes you mentioned above?

0 Buggy over 8 years ago in reply to Buggy

Intellectual 265 points

When I do so, I get this error:

Fetcher failure: Unable to find file file://am571x-pru-uio.dtsi anywhere.

Copying the file from meta-processor-sdk doesn't help.

0 Buggy over 8 years ago in reply to Buggy

Intellectual 265 points

So what do I have to do?

0 Kemal R. Shakir over 8 years ago in reply to Buggy

TI__Guru 55345 points

Just copy the file from <tisdk>/sources/meta-processor-sdk/recipes-kernel/linux/files/dra7xx/am571x-pru-uio.dtsi to <tisdk>/downloads/ directory and it should find it.

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Linux: Processor SDK Linux / Update Kernel