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

[Takahiro.Kuwano at infineon.com]

Hi,

> 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.
> 
I do have some non-SFDP chips (S25FL-S). Will get back to you with test
result.

Thanks,
Takahiro