Dear Developers,
I have bought Beaglebone black rev C (PCB rev B6) and flashed “bone-debian-9.3-lxqt-armhf-2018-01-28-4gb.img” in emmc1 on BBB and emmc0 SD card. After I have connected “GEN4-4DCAPE-70CT” LCD with BeagleBone Black and did power cycle (using powerdown button on BBB or using shutdown -h now command ) sometime (once per 10 time) I get garbage value from debug port of BBB just before starting of Kernel and complete system hang up. Following is debug output I get when I face this problem: U-Boot SPL 2018.01-00002-g9aa111a004 (Jan 20 2018 - 12:45:29) Trying to boot from MMC2 U-Boot 2018.01-00002-g9aa111a004 (Jan 20 2018 - 12:45:29 -0600), Build: jenkins-github_Bootloader-Builder-32 CPU : AM335X-GP rev 2.1 I2C: ready DRAM: 512 MiB No match for driver 'omap_hsmmc' No match for driver 'omap_hsmmc' Some drivers were not found Reset Source: Power-on reset has occurred. MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1 Using default environment Board: BeagleBone Black <ethaddr> not set. Validating first E-fuse MAC BeagleBone Black: Model: Element14 BeagleBone Black Industrial: debug: process_cape_part_number:[BB-BONE-4D7C-01] debug: process_cape_part_number:[42422D424F4E452D344437432D3031] BeagleBone: cape eeprom: i2c_probe: 0x54: /lib/firmware/BB-BONE-4D7C-01- 00A1.dtbo [0xfe133cf] BeagleBone: cape eeprom: i2c_probe: 0x55: BeagleBone: cape eeprom: i2c_probe: 0x56: BeagleBone: cape eeprom: i2c_probe: 0x57: Net: eth0: MII MODE cpsw, usb_ether Press SPACE to abort autoboot in 2 seconds board_name=[A335BNLT] ... board_rev=[EIA0] ... switch to partitions #0, OK mmc0 is current device SD/MMC found on device 0 ** Bad device 0:2 0x82000000 ** ** Bad device 0:2 0x82000000 ** switch to partitions #0, OK mmc0 is current device Scanning mmc 0:1... gpio: pin 56 (gpio 56) value is 0 gpio: pin 55 (gpio 55) value is 0 gpio: pin 54 (gpio 54) value is 0 gpio: pin 53 (gpio 53) value is 1 switch to partitions #0, OK mmc0 is current device gpio: pin 54 (gpio 54) value is 1 Checking for: /uEnv.txt ... Checking for: /boot.scr ... Checking for: /boot/boot.scr ... Checking for: /boot/uEnv.txt ... gpio: pin 55 (gpio 55) value is 1 2061 bytes read in 46 ms (43 KiB/s) Loaded environment from /boot/uEnv.txt Checking if uname_r is set in /boot/uEnv.txt... gpio: pin 56 (gpio 56) value is 1 Running uname_boot ... loading /boot/vmlinuz-4.9.78-ti-r94 ... 9960536 bytes read in 665 ms (14.3 MiB/s) uboot_overlays: [uboot_base_dtb=am335x-boneblack-uboot.dtb] ... uboot_overlays: Switching too: dtb=am335x-boneblack-uboot.dtb ... loading /boot/dtbs/4.9.78-ti-r94/am335x-boneblack-uboot.dtb ... 61626 bytes read in 62 ms (969.7 KiB/s) uboot_overlays: [fdt_buffer=0x60000] ... uboot_overlays: loading /lib/firmware/BB-BONE-4D7C-01-00A1.dtbo ... 4578 bytes read in 92 ms (47.9 KiB/s) uboot_overlays: loading /lib/firmware/BB-BONE-eMMC1-01-00A0.dtbo ... 1105 bytes read in 255 ms (3.9 KiB/s) uboot_overlays: loading /lib/firmware/BB-ADC-00A0.dtbo ... 695 bytes read in 550 ms (1000 Bytes/s) uboot_overlays: [uboot_detected_capes=BB-BONE-4D7C-01,] ... uboot_overlays: cape universal disabled, external cape enabled or detected ... loading /boot/initrd.img-4.9.78-ti-r94 ... 6300596 bytes read in 429 ms (14 MiB/s) debug: [console=ttyO0,115200n8 bone_capemgr.uboot_capemgr_enabled=1 root= /dev/mmcblk0p1 ro rootfstype=ext4 rootwait uboot_detected_capes=BB-BONE-4D7C -. debug: [bootz 0x82000000 0x88080000:6023b4 88000000] ... ## Flattened Device Tree blob at 88000000 Booting using the fdt blob at 0x88000000 Loading Ramdisk to 8f9fd000, end 8ffff3b4 ... OK reserving fdt memory region: addr=88000000 size=70000 Loading Device Tree to 8f98a000, end 8f9fcfff ... OK // Note problem occur before starting kernel i~�}�^�u~�u.�Mi^�u�( i��e~'ih�yxu~�u.��������������������� Please inform me what can be possible reason for this issue and how can I solve it or if you need any other information from me..Thank you very much :) -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/8c36ed4e-9bb6-4fbf-9e89-0fac59de8179%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
