I am trying to compile a dtb for the beagle bone black (BBB) that I can pass from uboot and have all the peripherals configured as I want them. I need to do it this way rather than applying overlays as we are designing a board based on the BBB and we want to have the peripherals configured at boot.
The command I have used to try to compile the dtb is below. dtc -I dts -@ -O dtb -o am335x-boneblack.dtb am335x-boneblack.dts
To get the -@ option to work I followed the instructions here: http://eewiki.net/display/linuxonarm/BeagleBone#BeagleBone-Upgradedistro%22device-tree-compiler%22package
I have tried pulling the device tree source from multiple places and compiling it.
When pulling from http://git.ti.com/ti-linux-kernel/ti-linux-3-8-y-kernel/trees/master/arch/arm/boot/dts I can compile it but once uboot says "Starting kernel ..." there is no further response
When pulling from githubdotcom/beagleboard/devicetree-source I'm unable to compile. It is returning a syntax error on the "#include" statements. I have tried to change these to /include/ but there are includes in a "" that fail. If I fix those to absolute things inside the include break.
I believe that the build from the TI repo is the correct path to pursue but I have been unable to get the kernel to boot. I have tried adding a "-b 0" option (no binary difference in dtb) and removing the -@ but the file is significantly smaller (11k to -@ 15k to default that works 29k) and doesn't boot.
Any suggestions?
ps sorry for the github link mangling, I'm only allowed to post 2 links
