Xavier NX JP5 flash NVME on custom board

[eran.peled]

Hello,

I have a custom board with Xavier NX.
I have the entire configuration, which allows me to flash Jetpack 5.1.1 (35.3.1) in the eMMC and it all works just fine.
The command I have used for flashing is:
sudo ./flash.sh wolf-22xp-dp-revClk mmcblk0p1
The configurations for this flash sequence:

1. wolf-22xp-dp-revClk.conf (here I uploaded it as wolf-22xp-dp-revClk.conf.backup)
2. flash_l4t_t194_spi_emmc_p3668.xml
3. tegra194-p3668-all-wolf-22xp-01.dtb
   All files attached in working_configuration.zip:
   working_configuration.zip (53.6 KB)

Now, I would like to flash it directly to NVMe. I have failed doing so.
The steps I have followed:

1. Update the default flash_l4t_t194_spi_sd_p3668.xml as defined in Partition Configuration — Jetson Linux Developer Guide documentation to create flash_l4t_t194_spi_nvme64GB_p3668.xml
2. Update wolf-22xp-dp-revClk.conf to point flash_l4t_t194_spi_nvme64GB_p3668.xml
3. Use the following flash command:
   sudo ./flash.sh wolf-22xp-dp-revClk nvme0n1p1
   Updates in configuration are attached in: NOT_working_configuration_with_NVME.zip
   NOT_working_configuration_with_NVME.zip (4.0 KB)

The output of this sequence is in flash_output.txt
flash_output.txt (27.8 KB)

Can someone help me with this NVMe boot issue?

[WayneWWW]

@eran.peled

sudo ./flash.sh wolf-22xp-dp-revClk nvme0n1p1

flash.sh wont’ flash anything to nvme. You need to use initrd flash tool.

[eran.peled]

Hi,
Thanks for the quick replay,
What should be the command to flash the nvme with initrd flash tool and my configuration files?

Thanks,
eran.

[WayneWWW]

Please check

https://docs.nvidia.com/jetson/archives/r35.4.1/DeveloperGuide/text/SD/FlashingSupport.html#flashing-with-initrd

[eran.peled]

Hi,

I have followed the instructions for installing the prerequisites in the link you sent and then performed
sudo ./tools/kernel_flash/l4t_initrd_flash.sh wolf-22xp-dp-revClk nvme0n1p1

I get almost the same error:
l4t_initrrd_flash.txt (28.3 KB)

Any suggestions ?

Thanks,
Eran.

[WayneWWW]

You can refer to how Orin NX/Nano nvme got flashed to know how to run the one for your Xavier NX.

https://docs.nvidia.com/jetson/archives/r35.4.1/DeveloperGuide/text/IN/QuickStart.html#to-flash-the-jetson-developer-kit-operating-software

[eran.peled]

Hi
I succeded to flash and boot my custom xavier nx board using the hints in the link you have sent me and README_initrd_flash.txt inside the tegra directories:

1. I have Extracted the NVMe charecteristics: Number of sectors and sectors size using fdisk -l on a linux system this nvme is connected to.
2. I have Created tools/kernel_flash/flash_l4t_external_custom.xml from the original tools/kernel_flash/flash_l4t_external.xml. update number of sectors and sector size of the external device inisde the flash_l4t_external.xml. for example, I have updated to 125045424.

<partition_layout version="01.00.0000">
    <device type="external" instance="0" sector_size="512" num_sectors="125045424">

3. I have used the command line in (Quick Start — Jetson Linux Developer Guide documentation) in the section of: Jetson Orin Nano Developer Kit (NVMe), with the help of the command in README_initrd_flash.txt (For a device with internal QSPI and external NVMe: paragraph) with the following updates:
   a. As bootloader/t186ref/cfg/flash_t234_qspi.xml fits Orin and not my Xavier I have used bootloader/t186ref/cfg/flash_t194_uefi_qspi_p3668.xml
   b. I have used tools/kernel_flash/flash_l4t_external_custom.xml I created in previous step.
   The final flash command is:

sudo ./tools/kernel_flash/l4t_initrd_flash.sh --external-device nvme0n1p1 \
      -c flash_l4t_external_wolf.xml \
      -p "-c bootloader/t186ref/cfg/flash_t194_uefi_qspi_p3668.xml --no-systemimg" --network usb0 \
      wolf-22xp-dp-revClk external