Below is the consol log from trying to use mtd_debug write. It returned
immediately with a strange success message.
root@orangepizero3:~# mtd_debug write /dev/mtd0 0 0xf0000
/home/sysadmin/u-boot-sunxi-with-spl.bin
file_to_flash: fread, size 0xf0000, n 0xf0000
fread(): Success
I then used the cat command to write to the SPI flash which took a few
seconds to execute:
root@orangepizero3:~# cat /home/sysadmin/u-boot-sunxi-with-spl.bin >
/dev/mtd0
I tried to follow the u-boot documentation on writing the SPI flash but
had problems with the write command. When issued it returned
immediately. The erase command took about 5 sec to execute. I researched
use of mtd commands and got a suggestion to use cat instead, which worked.
"root@orangepizero3:~# mtdinfo
Count of MTD devices: 1
Present MTD devices: mtd0
Sysfs interface supported: yes
root@orangepizero3:~# mtd_debug erase /dev/mtd0 0 0xf0000
Erased 983040 bytes from address 0x00000000 in flash
root@orangepizero3:~# mtd_debug write /dev/mtd0 0 0xf0000
/home/sysadmin/u-boot-sunxi-with-spl.bin
file_to_flash: fread, size 0xf0000, n 0xf0000
fread(): Success
