linux-kernel - RE: EXTERNAL: Re: [PATCH 1/1] mtd: spi-nor: everspin: add em004lxb entry

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Date: Tue, 9 Apr 2024 13:50:23 +0000
From: FLAVIO SULIGOI <f.suligoi@...m.it>
To: 'Michael Walle' <mwalle@...nel.org>, Tudor Ambarus
	<tudor.ambarus@...aro.org>, Pratyush Yadav <pratyush@...nel.org>, Miquel
 Raynal <miquel.raynal@...tlin.com>, Richard Weinberger <richard@....at>,
	Vignesh Raghavendra <vigneshr@...com>
CC: "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: EXTERNAL: Re: [PATCH 1/1] mtd: spi-nor: everspin: add em004lxb
 entry

Hi Michael,

...
> On Tue Apr 9, 2024 at 2:07 PM CEST, FLAVIO SULIGOI wrote:
> > > On Fri Apr 5, 2024 at 12:01 PM CEST, Flavio Suligoi wrote:
> > > > Add the Everspin EM0004LXB 4Mb (512KB) Industrial STT-MRAM
> > > > Persistent Memory.
> > > > This device is JEDEC compatible (JESD251 and JESD251-1), but it is
> > > > not able to provide SFDP information.
> > >
> > > Did you try the at25 driver if it will fit your usecase? Judging
> > > from your last response, it sounds like it will do.
> >
> > Yes, you are right, it works with at25 driver!
> > Thanks!
> 
> Good news :)
> 
> > At the moment I have to use a page size of 256 bytes, using
> "atmel,at25".
> > Since the Everspin EM0004LXB MRAM doesn't have problem with any page
> > size (theoretically I could use a single page size of 512KB), can I
> > update the at25.c driver with a support for the EM0004LXB MRAM, as
> > already done for the Cypress fm25 F-RAM?
> 
> Feel free to propose a patch. Keep in mind that it is another ML and
> maintainer. Just use get_maintainer.pl. Keep me on CC if you like.

Thanks for the suggestions!

...

Best regards,
Flavio