Flash step

Enter Recovery mode

When it comes to using 'flash.sh', make sure you enter the Recovery mode first.

1. Connect to computer via M-USB1.
2. Press 'Recovery' button and 'Reset' button at the same time.
3. Release 'Reset' button.
4. Relesee 'Recovery' button.
5. Check wether the device is connected.

$ lsusb
Bus 001 Device 012: ID 0955:7e19 NVIDIA Corp. APX

Flash command

Please flash using Nvidia script 'flash.sh'

$ cd <nvidia_folder>/Linux_for_Tegra/
$ ls flash.sh
flash.sh

<board> name for flash

Base on your modules, change the <board> name for script.
Xavier NX(emmc) for TEK3-NVJETSON, TEK8-NX210V

jetson-xavier-nx-devkit-emmc

Nano(emmc) for TEK3-NVJETSON

jetson-nano-devkit-emmc

Nano(sd) for EVK

jetson-nano-devkit

Flash demo image

1. Download TechNexion TEK products demo image from HERE
   Or download Jetson EVK demo image from HERE
2. Copy demo image to "Linux_for_Tegra/bootloader/"
   And rename it into "system.img"

# backup origin system.img, 
$ sudo cp -rv <nvidia_folder>/Linux_for_Tegra/bootloader/system.img <nvidia_folder>/Linux_for_Tegra/bootloader/system.img.backup
# copy demo image
$ sudo cp -rv <demo_image> <nvidia_folder>/Linux_for_Tegra/bootloader/system.img

3. Enter recovery mode and run:

# <-r> skip building and reuse existing system.img. 
$ sudo ./flash.sh -r <board> mmcblk0p1 

DO NOT create new system.img, flash only

# # <-r> skip building and reuse existing system.img. 
$ sudo ./flash.sh -r <board> mmcblk0p1

Create new system.img, and flash

$ sudo ./flash.sh <board> mmcblk0p1 

Create new system.img, DO NOT flash

# <--no-flash> perform all steps except physically flashing the board.
$ sudo ./flash.sh --no-flash <board> mmcblk0p1

Backup currect image

$ sudo ./flash.sh -r -k APP -G <backup_img> <board> mmcblk0p1

$ simg2img backup.img backup.img.raw

$ img2simg backup.img.raw backup.img

Flash new pinmux image (For Xavier-NX)

0) Edit the xlsm pinmux file via windows environment.

<nvidia_folder>/Linux_for_Tegra/<target>*_pinmux/*.xlsm

If done, click the above Macro(Generate DT file) to generate pinmux file.

1) Type the <name> twice.

You will see this result.

2) Convert into cfg files using Jetpack script.

# Copy files to script location
$ cp -rv tegra19x-<name>-pinmux.dtsi <nvidia_folder>/Linux_for_Tegra/kernel/pinmux/t19x/
$ cp -rv tegra19x-<name>-gpio-default.dtsi <nvidia_folder>/Linux_for_Tegra/kernel/pinmux/t19x/
$ cp -rv tegra19x-<name>-padvoltage-default.dtsi <nvidia_folder>/Linux_for_Tegra/kernel/pinmux/t19x/

# Generation cfg file
$ cd <nvidia_folder>/Linux_for_Tegra/kernel/pinmux/t19x/
$ python pinmux-dts2cfg.py --pinmux addr_info.txt gpio_addr_info.txt por_val.txt    \
                tegra19x-<name>-pinmux.dtsi tegra19x-<name>-gpio-default.dtsi \
                1.0 > TEST_tegra19x-mb1-pinmux-p3668-a01.cfg

3) Copy cfg files to flash location

$ sudo cp -rp TEST_tegra19x-mb1-pinmux-p3668-a01.cfg <nvidia_folder>/Linux_for_Tegra/bootloader/t186ref/BCT/tegra19x-mb1-pinmux-p3668-a01.cfg

4) Flash 'MB1_BCT' partition(pinmux partition).

$ sudo ./flash.sh -k MB1_BCT jetson-xavier-nx-devkit-emmc mmcblk0p1

Flash new pinmux image (For Nano)

0) Edit the xlsm pinmux file via windows environment.

<nvidia_folder>/Linux_for_Tegra/<target>*_pinmux/*.xlsm

If done, click the above Macro(Generate DT file) to generate pinmux file.

1) Type the <name>.

You will see this result.

2) Copy files to device-tree location(For example: TEK3-NVJETSON)

$ sudo cp -rp tegra210-tek3-gpio-default.dtsi <nvidia_folder>/Linux_for_Tegra/sources/hardware/nvidia/platform/t210/porg/kernel-dts/porg-platforms/tegra210-tek3-nvjetson-a1-gpio-default.dtsi
$ sudo cp -rp tegra210-tek3-pinmux.dtsi <nvidia_folder>/Linux_for_Tegra/sources/hardware/nvidia/platform/t210/porg/kernel-dts/porg-platforms/tegra210-tek3-nvjetson-a1-pinmux.dtsi

4) Re-compile and flash new device-tree.

Flash new u-boot (Nano only)

$ sudo ./flash.sh -r -k LNX <board> mmcblk0p1

<nvidia_folder>/Linux_for_Tegra/sources/u-boot/u-boot.bin

<nvidia_folder>/Linux_for_Tegra/bootloader/t210ref/p3450-0000/u-boot.bin

Flash new cboot (Xavier-NX only)

$ sudo ./flash.sh -k cpu-bootloader --image cboot/out/build-t194/lk.bin <board> mmcblk0p1

<nvidia_folder>/Linux_for_Tegra/sources/cboot/out/build-t194/lk.bin

 <nvidia_folder>/Linux_for_Tegra/bootloader/cboot_t194.bin

Those only update by file system

Those part below can't be changed by flash.sh.
Need to change the file by:

1. baseboard sd card
2. ssh (scp)
3. USB stick
   
   

Update new kernel Image

Copy from:

<nvidia_folder>/Linux_for_Tegra/sources/kernel/kernel-4.9/arch/arm64/boot/Image

to device:

/boot/

Update new kernel modules

Copy from

<nvidia_folder>/Linux_for_Tegra/sources/kernel/modules/lib/

to device:

/lib/

Update device tree

From:

<nvidia_folder>/Linux_for_Tegra/sources/kernel/kernel-4.9/arch/arm64/boot/dts/<target>.dtb

to device:

/boot/<target>.dtb

Change default device-tree

On device:

$ vi /boot/extlinux/extlinux.conf
LABEL primary
      MENU LABEL primary kernel
+     FDT /boot/<target>.dtb
      LINUX /boot/Image
      INITRD /boot/initrd
      APPEND ${cbootargs} root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyTCU0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0

Update Update device tree overlay (Nano only)

From:

<nvidia_folder>/Linux_for_Tegra/sources/kernel/kernel-4.9/arch/arm64/boot/dts/<target>.dtbo

to device:

/boot/<target>.dtb*

on device:

$ vi /boot/extlinux/extlinux.conf
LABEL primary
      MENU LABEL primary kernel
+     FDTOVERLAYS /boot/<target_overlay>.dtbo
      FDT /boot/<target>.dtb
      LINUX /boot/Image
      INITRD /boot/initrd
      APPEND ${cbootargs} root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=ttyTCU0,115200n8 console=tty0 fbcon=map:0 net.ifnames=0

Support Overlay Table (WIP)