T-SeriesのトピックRe: Change device tree with QCVS

Change device tree with QCVS

manoloruiz — Tue, 26 Apr 2016 10:23:40 GMT

Hi,

I am using QCVS to make some changes in the device tree file. However, I do not know which file I should open. I find the next path:

./build_t2080rdb_release/tmp/work/t2080rdb-fsl-linux/linux-qoriq/3.12-r0/packages-split/kernel-dev/usr/src/kernel/arch/powerpc/boot/dts/t2080rdb.dts

./build_t2080rdb_release/tmp/work/t2080rdb-fsl-linux/linux-qoriq/3.12-r0/image/usr/src/kernel/arch/powerpc/boot/dts/t2080rdb.dts

./build_t2080rdb_release/tmp/work/t2080rdb-fsl-linux/linux-qoriq/3.12-r0/git/arch/powerpc/boot/dts/t2080rdb.dts

./build_t2080rdb_release/tmp/work/t2080rdb-fsl-linux/linux-qoriq/3.12-r0/package/usr/src/kernel/arch/powerpc/boot/dts/t2080rdb.dts

./build_t2080rdb_release/tmp/work/t2080rdb-fsl-linux/linux-qoriq/3.12-r0/sysroot-destdir/usr/src/kernel/arch/powerpc/boot/dts/t2080rdb.dts

./build_t2080rdb_release/tmp/sysroots/t2080rdb/usr/src/kernel/arch/powerpc/boot/dts/t2080rdb.dts

Once I select one, what I should do to perform the change?

Re: Change device tree with QCVS

addiyi — Tue, 26 Apr 2016 11:22:57 GMT

In QCVS, create a project for your target and select Device Tree Editor as component. You can import a .dts file using Wizard. After customization, you have to build the .dts file using dtc for the target.

Adrian

Re: Change device tree with QCVS

bpe — Sat, 30 Apr 2016 17:56:52 GMT

You should alter

../tmp/work/t2080rdb-fsl-linux/linux-qoriq/3.12-r0/git/arch/powerpc/boot/dts/t2080rdb.dts

After you are done with your modifications, rebuild the kernel with

'bitbake linux-qoriq' or rebuild just DTB by invoking dtc directly,

see man dtc for details.

Note that if you perform 'bitbalke -c clean' or 'bitbake -c cleansstate' your changes

will be lost. To avoid this, save your DTB to a separate file and

add it to KERNEL_DEVICETREE in /sources/meta-freescale/conf/machine/<your_board>.conf

More details can be found here:

https://freescale.sdlproducts.com/LiveContent/content/en-US/QorIQ_SDK_1.9/GUID-8C4D9C9C-BC81-488D-B2E8-B6494908CF5D

https://freescale.sdlproducts.com/LiveContent/content/en-US/QorIQ_SDK_1.9/GUID-FC862E7B-3601-482D-930E-366E0430A2E7

Have a great day,
Platon

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------