JH71xx-tools

Bootloader recovery and updater tool for StarFive JH7100 SoCs.

Command Line Parameters

-D, --device <tty device>      : Serial tty device path.
-r, --recovery <filename>      : Bootloader recovery firmware.
-b, --bootloader <filename>    : Second stage bootloader.
-d, --ddrinit <filename>       : DRAM initialization firmware.
-h, --help                     : Show this help.

Build

gcc -o jh7100-recover jh7100-recover.c

Examples

1. Update second stage bootloader.

$ ./jh7100-recover -D /dev/ttyUSB0 \
-r jh7100_recovery_boot.bin \
-b bootloader-BEAGLEV-buildroot.bin.out

2. Update DRAM initialization firmware.

$ ./jh7100-recover -D /dev/ttyUSB0 \
-r jh7100_recovery_boot.bin \
-d ddrinit-2133-buildroot.bin.out

3. Update both second stage bootloader and DRAM initialization firmware.

$ ./jh7100-recover -D /dev/ttyUSB0 \
-r jh7100_recovery_boot.bin \
-b bootloader-BEAGLEV-buildroot.bin.out \
-d ddrinit-2133-buildroot.bin.out

Tutorial

1. A very nice tutorial by Lakshantha Dissanayake from Seeed.

   Update bootloader, ddr init boot, u-boot and recover bootloader.