Robert/other device tree experts, Apparently using u-boot to load the compiled dtbo bricks the beaglebone. The device does not complete boot up and all 4 led's remain on (ethernet/usb is non responsive too). I am wondering if U-boot is the right way to do it? How should I compile the original Dts <https://git.ti.com/apps/tida01555/blobs/master/dts/am335x-boneblack-pruadc.dts> and add to boot up? TI's compilation instructions are: *3.1.2.4 Compile the Device Tree to Configure Pin Muxing * *A device tree file is provided in the dts folder of the TIDA-01555 git repository. Copy the device tree file (am335x-boneblack-pruadc.dts) into the dts folder of the RT Linux Kernel source of the Processor SDK. Find the dts folder at ${RT Linux Processor SDK Install Path}/board-support/linux-xx.xx.xx/ arch/arm/boot/dts/. * *After the am335x-boneblack-pruadc.dts file is placed in the SDK’s dts folder, compile the device tree. From the ${RT Linux Processor SDK Install Path}/board-support/linux-xx.xx.xx/ directory, run the following bolded commands. Make sure to add the cross-compile toolchain to the PATH variable first. For more information on the following commands, see the Processor SDK Linux Kernel Users Guide. * *• # make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- distclean * *• # make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- tisdk_am335x-evm-rt_defconfig * *• # make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- am335x-boneblack-pruadc.dtb*
How would I accomplish the same on Beaglebone? Thanks Gaurav On Tuesday, October 9, 2018 at 4:43:57 PM UTC-5, GS wrote: > > Thanks Robert, much appreciated! > > On Tuesday, October 9, 2018 at 4:03:21 PM UTC-5, RobertCNelson wrote: >> >> On Tue, Oct 9, 2018 at 3:54 PM GS <[email protected]> wrote: >> > >> > I am trying to figure out how to reserve memory in device tree. (this >> is based on an example by TI: Dts and compile instructions section 3.1.2.4) >> > Here is is my dts file: >> > >> > /dts-v1/; >> > >> > / { >> > reserved-memory { >> > #address-cells = <1>; >> > #size-cells = <1>; >> > ranges; >> > >> > pruadc_reserved: pruadc_reserved@0x9ffc0000 { >> > reg = <0x9ffc0000 0x00010000>; >> > no-map; >> > status = "okay"; >> > }; >> > }; >> > }; >> > >> > However, when I compile I get the following warnings: >> > src/arm/MEM.dtbo: Warning (ranges_format): /reserved-memory has empty >> "ranges" property but its #address-cells (1) differs from / (2) >> > src/arm/MEM.dtbo: Warning (avoid_default_addr_size): Relying on default >> #address-cells value for /reserved-memory >> > src/arm/MEM.dtbo: Warning (avoid_default_addr_size): Relying on default >> #size-cells value for /reserved-memory >> > >> > Other combinations of address-cells/size-cells give reg format >> warnings. >> >> Looks fine: >> >> >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/da850-lcdk.dts?h=v4.19-rc7#n29 >> >> >> dtc just being over-jealous on warnings, and we haven't fixed all the >> in-kernel nodes up to the proper syntax.. >> >> Regards, >> >> -- >> Robert Nelson >> https://rcn-ee.com/ >> > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/db49937a-ac7a-488e-9e0b-0bf81344e8a9%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
