Hi, I found that the dtb is obtained from a git reposirtory during the build and stored under build/tmp/work/socfpga_cyclone5-poky-linux-gnueabi/linux-altera-ltsi/3.10-r1/git/arch/arm/boot/dts/ I succesfully build a custom dtb following these suggestions: https://community.freescale.com/thread/325219
Is there a way to do this using a bitbake mechanism? Thanks! Best Regards, Steffen On 05/18/2015 11:41 AM, Steffen Schuetz wrote: > Hi, > > I build a customized Linux image using Yocto Daisy - we need gcc >= 4.8 > - following the instructions at > http://rocketboards.org/foswiki/Documentation/YoctoDoraBuildWithMetaAltera . > Besides the zImage and rootfs the build process outputs an .dtb file. > Now, in order to get the FPGA fabric involved, I'd have to come up with > a modified dts and build it. > That's where I'm a bit lost in the blur. I can not figure out where the > generated dtb is coming from? What's the mechanism behind? I cannot find > any .dts nor .dtb in the meta-altera layer. > > Besides that I realized that if I use the dtb that shipped with the > board with the "daisy" kernel, the boot process gets stuck at "Waiting > for root device /dev/mmcblk0p3..." The "shipped" kernel is version 3.8.0 > while the "daisy" one is 3.10.31-ltsi. > Was there a change in the device tree layout as the "old" one doesn't > work with the "daisy" kernel? > > > Thanks in advance! > > Regards, > Steffen
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