How to install U-boot to jetson Tk1

I’m using Jetson Tk1.

I want to know is how to flash U-boot into the chip.

  1. Into the Nvidia Jetson Tk1?
    2)Into a custom board that uses same chip

Thank you

The default for R19.2 is fastboot, but the "-L " parameter is allowed to select an alternate image (such as “bootloader/ardbeg/fastboot.bin” or “bootloader/ardbeg/u-boot.bin” (the version placed in “/bootloader/” is the one probably used, it is NULL-byte padded to a specfic length). From R21.1 and forward the default is u-boot, and no special argument is required. You could just flash the most recent R21.5. A typical flash command line under R21.x is:

sudo ./ -S 14580MiB jetson-tk1 mmcblk0p1

I don’t know how the custom board would differ, though there might be a board ID to deal with.