about QSPI NOR flash lock/unlock

Guangyu_D — Tue, 20 Feb 2024 08:57:08 GMT

I'm trying to lock QSPI Flash.

Test on s32g274ardb2 board with bsp39. But when run command "flash_lock -i /dev/mtd0", it return error like this:

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

error 95 (Operation not supported)

It seems flash_lock operation doesn't supported by this driver.

However, flash_erase is OK.

I also try sf protect lock in u-boot. It doesn't work too.

So is NOR flash lock operation supported on current S32G BSP?

Thansk!

Re: about QSPI NOR flash lock/unlock

chenyin_h — Wed, 21 Feb 2024 06:35:36 GMT

Hello, @Guangyu_D

Thanks for the question.

I have checked the BSP user manual, as well as the latest code in kernel drivers, the locking operations are not supported, hence the flash_lock utility cannot be used.

Best Regards

Chenyin

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