Ok, so what I think I need to do is make a custom DTB for my board. To build one do I just create a DTS file in the /opt/source/dtb-5.4-ti/src and run *make /src/<ARCH>/custom.dts? *Also to install the DTB for u-boot, I need to move the file into /boot/dtbs/$(uname -r) for debian as stated here https://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0#u-boot_dtb_search_order right?
On Thursday, October 1, 2020 at 1:54:53 AM UTC-4 Dennis Bieber wrote: > On Wed, 30 Sep 2020 17:22:54 -0700 (PDT), in > gmane.comp.hardware.beagleboard.user Joshua Park > <joshua.park0312-re5...@public.gmane.org> wrote: > > >Hi all, > > > >I'm trying to edit the /proc/device-tree/model file in the > >debian-10.3-iot-armhf-2020-04-06 version file system. I have tried as > root > >and changed the permissions of the file and its parent directories but > the > >file remains unwritable. Can anyone tell me how I am supposed to edit > this > >file? > > You don't... It doesn't exist as a file, just a virtual name in the > file system. When you read it, the OS generates the data it gives to you. > https://tldp.org/LDP/Linux-Filesystem-Hierarchy/html/proc.html > > I suspect you need to edit the appropriate device tree source file, > compile it into a DTB, and install that DTB where ever u-boot is looking... > > > debian@beaglebone:~$ cat /proc/device-tree/model > TI AM335x BeagleBone Blackdebian@beaglebone:~$ > debian@beaglebone:~$ grep -i "TI AM335x BeagleBone Black" > /opt/source/dtb-4.19-ti/src/arm/*.dts > /opt/source/dtb-4.19-ti/src/arm/am335x-boneblack-audio.dts: model = "TI > AM335x BeagleBone Black"; > /opt/source/dtb-4.19-ti/src/arm/am335x-boneblack-bbb-exp-c.dts: model = "TI > AM335x BeagleBone Black"; > /opt/source/dtb-4.19-ti/src/arm/am335x-boneblack-bbb-exp-r.dts: model = "TI > AM335x BeagleBone Black"; > /opt/source/dtb-4.19-ti/src/arm/am335x-boneblack-bbbmini.dts: model = "TI > AM335x BeagleBone Black"; > /opt/source/dtb-4.19-ti/src/arm/am335x-boneblack.dts: model = "TI AM335x > BeagleBone Black"; > /opt/source/dtb-4.19-ti/src/arm/am335x-boneblack-roboticscape.dts: model = > "TI AM335x BeagleBone Black RoboticsCape"; > /opt/source/dtb-4.19-ti/src/arm/am335x-boneblack-uboot.dts: model = "TI > AM335x BeagleBone Black"; > /opt/source/dtb-4.19-ti/src/arm/am335x-boneblack-uboot-univ.dts: model = > "TI AM335x BeagleBone Black"; > /opt/source/dtb-4.19-ti/src/arm/am335x-boneblack-wireless.dts: model = "TI > AM335x BeagleBone Black Wireless"; > /opt/source/dtb-4.19-ti/src/arm/am335x-boneblack-wireless-roboticscape.dts: > model = "TI AM335x BeagleBone Black Wireless RoboticsCape"; > /opt/source/dtb-4.19-ti/src/arm/am335x-boneblack-wl1835mod.dts: model = "TI > AM335x BeagleBone Black"; > debian@beaglebone:~$ > > > -- > Dennis L Bieber > > -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/518a9b15-6ec4-49d4-98b1-2ad0cf8ac91cn%40googlegroups.com.
