[RFC PATCH 0/3] mtd: spi-nor: Rework flash parameter initialization

Miquel Raynal miquel.raynal at bootlin.com
Tue Jun 2 03:03:47 PDT 2026


Hi Michael,

On 01/06/2026 at 14:52:42 +02, Michael Walle <mwalle at kernel.org> wrote:

> Try to simplify the flash initialization and get rid of the legacy
> handling. As default, all the flags of the in-kernel database are
> taken and amended with the SFDP data.
>
> This might have the consequence that all the flashes now get a
> RDSFPD opcode which might be an unknown opcode. But that was already
> the case for any flashes which were unknown to the linux kernel. So
> far, there was not a single complaint.
>
> See patch 3 for more information. If feedback is positive, this is
> intended to be applied to the spi-nor tree after the next merge
> window, so it will sit around in -next for quite some time and get
> some testing.
>
> That being said, I've just did a quick test on my boards. Please
> give it a test on your boards.

Interesting cleanup, thanks for pushing it. I'll run some tests with
some old and newer SFDP based flashes. I do not have chips without SFDP
though.

Thanks,
Miquèl



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