[beagleboard] BBB will not boot from SD card with USB device plugged in

[Patrick Failing]

I have 10 BBB from 4 years ago and 10 from 2 years ago.  When I have a USB 
device plugged in, the BBB will not boot android from SD card every time.  
This does not happen with the older BBB and is random on the new BBB.  I do 
receive babble interrupt error.  I also measured the voltage out of the USB 
port on the BBB and it is 5 volts when it boots and about 3 mV when it 
doesn't boot.  I have tried power supply with 5V and 3 amps but this does 
not resolve the issue.  I have tried different distros of Linux and this 
does not help.  When the BBB does not boot, it resumes when the USB is 
unplugged.  I am desperate and looking for help.  If there are any 
contractors who can assist that anyone knows I would appreciate their info.

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Re: [beagleboard] Re: PWM in beagle bone black

[Megha Bhirade]

Hi ,

i am using kernel version of 4.14.so slots file and bone -capemgr are 
disabled in V4.14 of kernel in the favor of U-boot overlay.

my uEnv.txt file look like this.


debian@beaglebone:/boot$ cat uEnv.txt 
#Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0

uname_r=4.14.71-ti-r80
#uuid=
#dtb=

###U-Boot Overlays###
###Documentation: 
http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Overlays
###Master Enable
enable_uboot_overlays=1
###
###Overide capes with eeprom
#uboot_overlay_addr0=/lib/firmware/.dtbo
#uboot_overlay_addr1=/lib/firmware/.dtbo
#uboot_overlay_addr2=/lib/firmware/.dtbo
#uboot_overlay_addr3=/lib/firmware/.dtbo
###
###Additional custom capes
#uboot_overlay_addr4=/lib/firmware/.dtbo
#uboot_overlay_addr5=/lib/firmware/.dtbo

uboot_overlay_addr6=/lib/firmware/BB-UART1-00A0.dtbo
uboot_overlay_addr7=/lib/firmware/BB-UART2-00A0.dtbo

###
###Custom Cape
#dtb_overlay=/lib/firmware/.dtbo
###
###Disable auto loading of virtual capes (emmc/video/wireless/adc)
#disable_uboot_overlay_emmc=1
#disable_uboot_overlay_video=1
#disable_uboot_overlay_audio=1
#disable_uboot_overlay_wireless=1
#disable_uboot_overlay_adc=1
###
###PRUSS OPTIONS
###pru_rproc (4.4.x-ti kernel)
#uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-4-TI-00A0.dtbo
###pru_rproc (4.14.x-ti kernel)
uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-14-TI-00A0.dtbo
###pru_uio (4.4.x-ti, 4.14.x-ti & mainline/bone kernel)
#uboot_overlay_pru=/lib/firmware/AM335X-PRU-UIO-00A0.dtbo
###
###Cape Universal Enable
enable_uboot_cape_universal=1
###
###Debug: disable uboot autoload of Cape
#disable_uboot_overlay_addr0=1
#disable_uboot_overlay_addr1=1
#disable_uboot_overlay_addr2=1
#disable_uboot_overlay_addr3=1
###
###U-Boot fdt tweaks... (6 = 384KB)
#uboot_fdt_buffer=0x6
###U-Boot Overlays###

cmdline=coherent_pool=1M net.ifnames=0 quiet

#In the event of edid real failures, uncomment this next line:
#cmdline=coherent_pool=1M net.ifnames=0 quiet video=HDMI-A-1:1024x768@60e

#Use an overlayfs on top of a read-only root filesystem:
#cmdline=coherent_pool=1M net.ifnames=0 quiet overlayroot=tmpfs

##enable Generic eMMC Flasher:
#cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh

debian@beaglebone:/boot$ 

please help me , here i am missing anything ??

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