Re: [PATCH v4 12/16] mtd: spi-nor: perform a Soft Reset on shutdown
From: Tudor.Ambarus
Date: Sun May 10 2020 - 07:34:07 EST
Hi, Pratyush,
On Friday, April 24, 2020 9:44:06 PM EEST Pratyush Yadav wrote:
> A Software Reset sequence will return the flash to Power-on-Reset (POR)
> state. It consists of two commands: Soft Reset Enable and Soft Reset.
>
> Perform a Soft Reset on shutdown on flashes that support it so that the
> flash can be reset to its initial state and any configurations made by
> spi-nor (given that they're only done in volatile registers) will be
> reset. This will hand back the flash in pristine state for any further
> operations on it.
Please don't introduce SPI_NOR_SOFT_RESET yet. We should instead determine the
software reset sequence by inspecting BFPT[16], bits 13:8.
Cheers,
ta