linux-kernel - Re: [PATCH] mtd: spi-nor: clear Extended Address Reg on switch to 3-byte addressing.

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Message-ID: <a203432c-0565-114c-74c5-27b5da77a5c5@gmail.com>
Date:   Wed, 11 Apr 2018 01:20:39 +0200
From:   Marek Vasut <marek.vasut@...il.com>
To:     NeilBrown <neil@...wn.name>,
        Cyrille Pitchen <cyrille.pitchen@...ev4u.fr>
Cc:     David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Richard Weinberger <richard@....at>,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mtd: spi-nor: clear Extended Address Reg on switch to
 3-byte addressing.

On 04/10/2018 03:05 AM, NeilBrown wrote:

Skipping the previous discussion, I think there are actually two
problems here. One is the reset and the other is braindead behavior of
this flash. TLDR, you are right and this patch is needed (with minor
tweak to make it winbond-only and possibly clean up the conditions a
bit, maybe even pull it into separate function with some sensible name),
sorry for the noise.

I had to read up the datasheet and the discussion again, the behavior of
the flash is horrid.

[...]

-- 
Best regards,
Marek Vasut