On Thu, Mar 3, 2016 at 1:11 AM, gnu gnu <[email protected]> wrote: > > Hi, > > I am trying to setup Jtag connection(with xds100v2) to debug Uboot and TI > mainline kernel 4.1.y branch. > I am following Robert nelson's instructions at this link: > https://eewiki.net/display/linuxonarm/BeagleBone+Black and flash emmc with > the uboot,kernel and filesystem. > When I was on kernel_version 4.1.13-ti-r34, I was able to connect to target > and debug uboot(I did not try Linux debug though o this version). Later I > realized that I have forgot to include "build kernel with debug info", so I > re-run build_kernel.sh, it moved kernel to 4.1.18-ti-r49, where I am unable > to do any jtag debugging. > Currently with the new build flashed to emmc, I halt uboot from booting > linux kernel and then connect Jtag, it all works fine till this point. Next > if I run the target using CCS UI, instead of resuming, uboot resets itself. > I suspect on resume somehow the board is getting reset. > > I did not see this behaviour in the earlier version. But since I am not a > git expert I do not know how can I move back to the previous tag. > > So two questions: > 1. Is this a known bug on 4.1.y branch ?
yes/no, but i'll give you a workaround.. ;) > 2. How can I move back to 4.1.13-ti-r34 tag. You can't, atleast not from that build script.. Users wanted "P9_41" back under userspace control, this was "clkout2_pin" which is xdma_event_intr1.clkout2 tied to the jtag... https://github.com/RobertCNelson/ti-linux-kernel-dev/commit/270d9d3268e648b2fa891ea92bdc04d42586746a I'll add the clkout2_pin back as an include you can use with the "dtb-rebuilder" to re-enable it. right now, you can grab the dtb-rebuilder: https://github.com/RobertCNelson/dtb-rebuilder/commits/4.1-ti and checkout "4.1.17-ti-rt-r47" aka: bf7939dd0aa7af8ffdd7061fc31d1af7d5d31dd5 Which was right before the change.. 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]. For more options, visit https://groups.google.com/d/optout.
