Jetson Nano booting issue

Custom dtb was flashed on jetson nano devkit in forced recovery mode. After this step, the board has stopped booting. No display from hdmi and no uart console boot messages. The UART to USB converter is in working condition. Previously the board was in working condition.

Flashed the available default sdcard image on the sdcard(32 gb, class 10) as per the “getting started with jetson nano” procedure for linux host. But the board was not booting. Repeated the same procedure on a new sdcard(16 gb, class 10), still no progress. But the flashing in forced recovery mode is successful in for both sdcards.

Verified the power requirements. A dc adapter with 5.2V , 3A was used for the power with J48 jumper plugged. The ‘POWER_EN’ was in high state.

Assuming that the device could be in sleep mode, attempts such as pressing the keyboard button, USB method, unplugging/plugging sdcard method were made to wake up the device

Could you please guide me through this issue?

Hi,

I don’t really think flashing custom dtb will cause the uart just has no log. There are other components in boot process which should not be affected by “flashing dtb”. You should see such log right after you plug the power cable to devkit.

Please also try to flash the board if it is possible and see if any log is from uart during the flash.

The following uart log is observed while flashing default dtb

[0141.253] Enabled early print
[0141.255] [L4T TegraBoot] (version 00.00.2018.01-l4t-7cdf0720)
[0141.261] Processing in recovery mode
[0141.264] A02 Bootrom Patch rev = 1023
[0141.268] Power-up reason: pmc por
[0141.271] Established communication link with host
[0142.258] NvTbootI2cWrite(): error code 0x00045100 Error while starting write transaction
[0142.266] NvTbootI2cDeviceRead(): error code 0x00045001 Error while sending the offset to slave
[0142.274] NvTbootI2c: Read failed for slave 0xac, offset 0x00 with error code 0x00045001
[0146.146] Odmdata from BCT: 0x00094000
[0146.150] DebugPort= 0x3
[0146.159] BoardId read from EEPROM/NCT: 3448
[0146.163] BoardID = 3448, SKU = 0x0
[0146.190] NvTbootInit_Porg: Setting GPIO_A6 for HDMI …
[0146.195] max77620 setting MBLPD bit
[0146.199] No Battery Present
[0146.202] RamCode = 0
[0146.204] Platform has DDR4 type RAM
[0146.207] max77620 disabling SD1 Remote Sense
[0146.212] Setting DDR voltage to 1125mv
[0146.216] Serial Number of Pmic Max77663: 0x1c0ee3
[0146.223] Entering ramdump check
[0146.226] Get RamDumpCarveOut = 0x0
[0146.230] RamDumpCarveOut=0x0, RamDumperFlag=0xe59ff3f8
[0146.235] Last reboot was clean, booting normally!
[0146.239] Sdram initialization is successful
[0146.244] SecureOs Carveout Base=0x00000000ff800000 Size=0x00800000
[0146.250] Lp0 Carveout Base=0x00000000ff780000 Size=0x00001000
[0146.255] BpmpFw Carveout Base=0x00000000ff700000 Size=0x00080000
[0146.261] GSC1 Carveout Base=0x00000000ff600000 Size=0x00100000
[0146.267] GSC2 Carveout Base=0x00000000ff500000 Size=0x00100000
[0146.273] GSC4 Carveout Base=0x00000000ff400000 Size=0x00100000
[0146.279] GSC5 Carveout Base=0x00000000ff300000 Size=0x00100000
[0146.285] GSC3 Carveout Base=0x000000017f300000 Size=0x00d00000
[0146.301] RamDump Carveout Base=0x00000000ff280000 Size=0x00080000
[0146.307] Platform-DebugCarveout: 0
[0146.311] Downloaded BCT successfully
[0146.436] Downloaded Bootloader successfully
[0146.493] Downloaded rp1 successfully
[0146.508] MAX77620_GPIO5 configured
[0146.512] CPU power rail is up
[0146.515] CPU clock enabled
[0146.518] Performing RAM repair
[0146.521] Updating A64 Warmreset Address to 0x92c002e9
[0146.528] Enable APE clock/reset
[0146.531] Error in NvTbootGetTOSBinaryLength: 0x11 !
[0146.535] Loading Secure OS image failed.
[0146.539] Set NvDecSticky Bits
[0146.543] GSC2 address ff53fffc value c0edbbcc
[0146.549] GSC MC Settings done
[0146.553] Next binary entry address: 0x92c00258
[0146.558] BoardId: 3448
[0146.560] Overriding pmu board id with proc board id
[0146.565] Display board id is not available
[0146.569] Starting CPU & Halting co-processor

[0150.098]
[0150.099] Debug Init done
[0150.103] Marked DTB cacheable
[0150.106] Bootloader DTB loaded at 0x83000400
[0150.110] DeviceTree Init done
[0150.123] Pinmux applied successfully
[0150.127] gicd_base: 0x50041000
[0150.131] gicc_base: 0x50042000
[0150.134] Interrupts Init done
[0150.138] Using base:0x60005090 & irq:208 for tick-timer
[0150.143] Using base:0x60005098 for delay-timer
[0150.148] platform_init_timer: DONE
[0150.151] Timer(tick) Init done
[0150.155] osc freq = 38400 khz
[0150.159]
[0150.160] Welcome to L4T Cboot
[0150.163]
[0150.164] Cboot Version: 00.00.2018.01-t210-40c3ff9c
[0150.169] calling constructors
[0150.172] initializing heap
[0150.175] initializing threads
[0150.178] initializing timers
[0150.181] creating bootstrap completion thread
[0150.185] top of bootstrap2()
[0150.188] CPU: ARM Cortex A57
[0150.191] CPU: MIDR: 0x411FD071, MPIDR: 0x80000000
[0150.195] initializing platform
[0150.203] Manufacturer: MF = 0xc2, ID MSB = 0x25
[0150.208] ID LSB = 0x36, ID-CFI len = 194 bytes
[0150.212] Macronix QSPI chip present
[0150.216] SPI device register
[0150.218] init boot device
[0150.221] allocating memory for boot device(SPI)
[0150.226] registering boot device
[0150.235] sdmmc node status = okay
[0150.238] sdcard instance = 0
[0150.241] sdcard gpio handle 0x56
[0150.244] sdcard gpio pin 0xc9
[0150.247] sdcard gpio flags 0x0
[0150.250] vmmc-supply 0x99
[0150.253] Instance: 0
[0150.255] Allocating memory for context
[0150.259] enabling clock
[0150.261] sd card init
[0150.264] Check card present and stable
[0150.267] Send command 0
[0150.348] Send command 3
[0150.352] Set RCA for the card
[0150.355] Query card specific data by command 9
[0150.362] Parse CSD data
[0150.364] Send command 7
[0150.374] Calling sd device register
[0150.378] Init sdcard
[0150.380] Allocating memory for boot device
[0150.384] Registering user device
[0150.397] of_register: registering tegra_udc to of_hal
[0150.402] of_register: registering inv20628-driver to of_hal
[0150.408] of_register: registering ads1015-driver to of_hal
[0150.414] of_register: registering lp8557-bl-driver to of_hal
[0150.419] of_register: registering bq2419x_charger to of_hal
[0150.425] of_register: registering bq27441_fuel_gauge to of_hal
[0150.437] gpio framework initialized
[0150.440] of_register: registering tca9539_gpio to of_hal
[0150.446] of_register: registering tca9539_gpio to of_hal
[0150.451] of_register: registering i2c_bus_driver to of_hal
[0150.456] of_register: registering i2c_bus_driver to of_hal
[0150.462] of_register: registering i2c_bus_driver to of_hal
[0150.468] pmic framework initialized
[0150.471] of_register: registering max77620_pmic to of_hal
[0150.477] regulator framework initialized
[0150.480] of_register: registering tps65132_bl_driver to of_hal
[0150.486] initializing target
[0150.492] gpio_driver_register: register ‘tegra_gpio_driver’ driver
[0150.501] board ID = D78, board SKU = 0
[0150.504] Skipping Z3!
[0150.509] fixed regulator driver initialized
[0150.527] initializing OF layer
[0150.531] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0150.549] I2C Bus Init done
[0150.551] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0150.562] I2C Bus Init done
[0150.564] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0150.575] I2C Bus Init done
[0150.577] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0150.588] I2C Bus Init done
[0150.590] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0150.601] I2C Bus Init done
[0150.603] of_children_init: Ops found for compatible string maxim,max77620
[0150.614] max77620_init using irq 118
[0150.619] register ‘maxim,max77620’ pmic
[0150.623] gpio_driver_register: register ‘max77620-gpio’ driver
[0150.629] of_children_init: Ops found for compatible string nvidia,tegra210-i2c
[0150.640] I2C Bus Init done
[0150.643] Applying platform configs
[0150.650] platform-init is not present. Skipping
[0150.655] calling apps_init()
[0150.683] Found 14 GPT partitions in “sd0”
[0150.687] Proceeding to flashing Server
[0150.691] usbdcd_reinit Initialize driver to use already enumerated device
[0150.698] nv3p_priv_usbf_open USB configuration success
[0150.707] Writing DTB partition
[0150.776] partition DTB write successful.
[0150.793] Writing BCT partition
[0158.620] partition BCT write successful.
[0158.635] Change state to cold boot mode
[0158.638] Flushing data to stroage

But no uart log is observed while plugging the power cable to the devkit when the board is not in forced recovery mode.

Hi,

That sounds weird. Is it okay for you to do the full flash on the system?

Hi,

Flashed full package on the system. Issue has been resolved. Thankyou very much for your kind and timely response

Thanks and regards
Karthik