On Mon, Aug 10, 2015 at 2:00 PM, Felipe Balbi <[email protected]> wrote: > Hi, > > On Mon, Aug 10, 2015 at 01:56:04PM -0500, Robert Nelson wrote: >> On Mon, Aug 10, 2015 at 1:05 PM, Robert Nelson <[email protected]> >> wrote: >> > On Mon, Aug 10, 2015 at 11:23 AM, Nuno Gonçalves <[email protected]> wrote: >> >> 3 weeks ago I asked for it "For what is worth I believe the OMAP and >> >> PMIC reset reason registers should be part of the boot log so future >> >> reboot problems can be sorted.". >> >> >> >> But I just asked, I didn't actually code! >> >> >> >> Not sure if it is easy to retrieve both, or if PMIC is that much >> >> relevant for this issues. >> >> >> >> Anyway, this will surely take out black magic from the equation when >> >> debugging this problems. >> > >> > Okay here's something quick/dirty... >> > >> > http://rcn-ee.homeip.net:81/farm/testing/v4.1.x/MLO-am335x_evm-v2015.07-r3 >> > http://rcn-ee.homeip.net:81/farm/testing/v4.1.x/u-boot-am335x_evm-v2015.07-r3.img >> > >> > #patch: >> > https://github.com/RobertCNelson/Bootloader-Builder/blob/master/patches/v2015.07/0001-am335x_evm-uEnv.txt-bootz-n-fixes.patch#L21 >> > >> > make sure the eMMC doesn't have it's own bootloader: >> > >> > U-Boot 2015.07-00001-gd8d32cf (Aug 10 2015 - 12:54:52 -0500) >> > >> > Watchdog enabled >> > I2C: ready >> > DRAM: 512 MiB >> > Reset Source: Global external warm reset has occurred. >> > Reset Source: Power-on reset has occurred. >> > MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1 >> > Using default environment >> > >> > dd if=/dev/zero of=/dev/mmcblk1 bs=1M count=10 >> > >> > sudo dd if=MLO-am335x_evm-v2015.07-r3 of=/dev/sde count=1 seek=1 bs=128k >> > sudo dd if=u-boot-am335x_evm-v2015.07-r3.img of=/dev/sde count=2 seek=1 >> > bs=384k >> > >> > I need to fire up x86, that's attached to the bbb's (right now i can't >> > log serial) >> >> Okay.... within a few minutes the first board rebooted... >> >> "Reset Source: Power-on reset has occurred." .... > > weird, this is likely either flakey DC Jack connection, or PMIC going > bonkers. > > How do you guys reproduce this ? Is the board idle or is it running ? > Which gadget driver ? Is USB cable connected to a host ? A desktop > host or wired back into the host port of BBB itself ? > > I wanna try to reproduce it here.
Pretty much just grab: http://rcn-ee.com/rootfs/bb.org/testing/2015-08-09/console/bb-debian-8.1-console-armhf-2015-08-09-2gb.img.xz dd it to a microSD card and just let it idle.. powered via DC ethernet connected (i was echoing "uptime -p" to a file on nfs) serial debug attached usb otg = not connected.. (if you connect this it'll stay ON and won't reset) usb host = not connected hdmi = not connected no capes plugged in gadget drivers: 4.1.4-ti-rt-r8 CONFIG_USB_MUSB_HDRC=y # CONFIG_USB_MUSB_HOST is not set # CONFIG_USB_MUSB_GADGET is not set CONFIG_USB_MUSB_DUAL_ROLE=y CONFIG_USB_MUSB_DSPS=y CONFIG_USB_MUSB_AM335X_CHILD=y # CONFIG_USB_TI_CPPI41_DMA is not set CONFIG_MUSB_PIO_ONLY=y CONFIG_USB_LIBCOMPOSITE=y CONFIG_USB_U_ETHER=y CONFIG_USB_F_ECM=y CONFIG_USB_F_SUBSET=y CONFIG_USB_F_RNDIS=y # CONFIG_USB_CONFIGFS is not set # CONFIG_USB_ZERO is not set # CONFIG_USB_AUDIO is not set CONFIG_USB_ETH=y CONFIG_USB_ETH_RNDIS=y https://github.com/RobertCNelson/ti-linux-kernel-dev/blob/4.1.4-ti-rt-r8/patches/defconfig#L4804-L4813 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.
