spl_tool is a jh7110 signature tool used to generate spl header information and generate u-boot-spl.bin.normal.out.
spl_tool can also fix the issue of emmc booting.
Install required additional packages:
$ sudo apt-get install gcc make git
just run make
$ make
usage
$ ./spl_tool -h
StarFive spl tool
usage:
-c, --creat-splhdr creat spl hdr
-i, --fix-imghdr fixed img hdr for emmc boot.
-a, --spl-bak-addr set backup SPL addr(default: 0x200000)
-v, --version set version (default: 0x01010101)
-f, --file input file name(spl/img)
-h, --help show this information
Generate uboot-spl.bin.normal.out
$./spl_tool -c -f $(Uboot_PATH)/spl/u-boot-spl.bin
ubsplhdr.sofs:0x240, ubsplhdr.bofs:0x200000, ubsplhdr.vers:0x1010101 name:$(Uboot_PATH)/spl/u-boot-spl.bin
SPL written to $(Uboot_PATH)/spl/u-boot-spl.bin.normal.out successfully.
Fix the emmc boot issue
$ ./spl_tool -i -f sdcard.img
IMG sdcard.img fixed hdr successfully.