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Registered: ‎01-10-2020

flash_lock/flash_unlock returning errors

I am using Petalinux 2018.3 on a Zynq 7000 family device.

I see the following errors when I try to use flash_unlock

root@localhost:~#  flash_unlock -i /dev/mtd0

flash_unlock: error!: could not check lock status device: /dev/mtd0

              error 95 (Operation not supported)

I get a similar error for flash_lock and flash_unlock and if I specify "0 0" or "0 1" for offset and block count

flashcp and flash_erase seem to be working fine. Here's the version reported.

root@localhost:~# flash_unlock -V
flash_unlock (mtd-utils) 2.0.0

thanks, Michael


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