Hello Friends I am using following image. bone-debian-9.3-iot-armhf-2018-03-05-4gb.img I need to enable UART2 for my project for that I enable BB-UART2-00A0.dtbo via uEnvt.txt. After this I ma facing gpio issues.
Before applying the overlay. ls /sys/class/gpio export gpio112 gpio117 gpio2 gpio27 gpio44 gpio49 gpio61 gpio69 gpio73 gpio78 gpio86 gpiochip0 gpio10 gpio113 gpio12 gpio20 gpio3 gpio45 gpio5 gpio65 gpio7 gpio74 gpio79 gpio87 gpiochip32 gpio11 gpio114 gpio13 gpio22 gpio30 gpio46 gpio50 gpio66 gpio70 gpio75 gpio8 gpio88 gpiochip64 gpio110 gpio115 gpio14 gpio23 gpio31 gpio47 gpio51 gpio67 gpio71 gpio76 gpio80 gpio89 gpiochip96 gpio111 gpio116 gpio15 gpio26 gpio4 gpio48 gpio60 gpio68 gpio72 gpio77 gpio81 gpio9 unexport After i apply the overlay BB-UART2-00A0.dtbo ls /sys/class/gpio export gpio12 gpio13 gpiochip0 gpiochip32 gpiochip64 gpiochip96 unexport Attached is the uEnv.txt file. When i go through the BB-UART2-00A0.dtsi files it is enabling only 2 pins, not sure what is the issue here. Please suggest. Br Anuj -- 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/8f6f1ba8-c8f7-4333-9417-965715b58715%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
my uEnv.txt is as follows #Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0 uname_r=4.9.82-ti-r102 #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/BB-UART2-00A0.dtbo #uboot_overlay_addr1=/lib/firmware/<file1>.dtbo #uboot_overlay_addr2=/lib/firmware/<file2>.dtbo #uboot_overlay_addr3=/lib/firmware/<file3>.dtbo ### ###Additional custom capes #uboot_overlay_addr4=/lib/firmware/<file4>.dtbo #uboot_overlay_addr5=/lib/firmware/<file5>.dtbo #uboot_overlay_addr6=/lib/firmware/<file6>.dtbo #uboot_overlay_addr7=/lib/firmware/<file7>.dtbo ### ###Custom Cape #dtb_overlay=/lib/firmware/<file8>.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 ### ###pru_rproc (4.4.x-ti kernel) #uboot_overlay_pru=/lib/firmware/AM335X-PRU-RPROC-4-4-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... (60000 = 384KB) #uboot_fdt_buffer=0x60000 ###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 ##enable Generic eMMC Flasher: ##make sure, these tools are installed: dosfstools rsync #cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh 6,0-1 Top
