From: Brian Norris <computersforpeace@gmail.com>
To: linux-mtd@lists.infradead.org
Cc: linux-kernel@vger.kernel.org,
"Daniel Kurtz" <djkurtz@chromium.org>,
"Marek Vasut" <marex@denx.de>,
"Bayi Cheng" <bayi.cheng@mediatek.com>,
"Rafał Miłecki" <zajec5@gmail.com>,
"Felix Fietkau" <nbd@openwrt.org>,
"Eddie Huang (黃智傑)" <eddie.huang@mediatek.com>,
"Milton Chiang (江明晏)" <Milton.Chiang@mediatek.com>
Subject: Re: [PATCH for-4.4 1/2] mtd: spi-nor: fix Spansion regressions (aliased with Winbond)
Date: Mon, 4 Jan 2016 18:29:28 -0800 [thread overview]
Message-ID: <20160105022928.GF109450@google.com> (raw)
In-Reply-To: <1450205301-32207-1-git-send-email-computersforpeace@gmail.com>
On Tue, Dec 15, 2015 at 10:48:20AM -0800, Brian Norris wrote:
> Spansion and Winbond have occasionally used the same manufacturer ID,
> and they don't support the same features. Particularly, writing SR=0
> seems to break read access for Spansion's s25fl064k. Unfortunately, we
> don't currently have a way to differentiate these Spansion and Winbond
> parts, so rather than regressing support for these Spansion flash, let's
> drop the new Winbond lock/unlock support for now. We can try to address
> Winbond support during the next release cycle.
>
> Original discussion:
>
> http://patchwork.ozlabs.org/patch/549173/
> http://patchwork.ozlabs.org/patch/553683/
>
> Fixes: 357ca38d4751 ("mtd: spi-nor: support lock/unlock/is_locked for Winbond")
> Fixes: c6fc2171b249 ("mtd: spi-nor: disable protection for Winbond flash at startup")
> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
> Reported-by: Felix Fietkau <nbd@openwrt.org>
> Cc: Felix Fietkau <nbd@openwrt.org>
Felix,
Can I get a Tested-by? I'm going to send this for 4.4 still, if
possible.
Brian
next prev parent reply other threads:[~2016-01-05 2:29 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-15 18:48 [PATCH for-4.4 1/2] mtd: spi-nor: fix Spansion regressions (aliased with Winbond) Brian Norris
2015-12-15 18:48 ` [PATCH for-4.4 2/2] mtd: spi-nor: fix stm_is_locked_sr() parameters Brian Norris
2016-01-05 2:30 ` Brian Norris
2016-01-05 2:29 ` Brian Norris [this message]
2016-01-06 0:02 ` [PATCH for-4.4 1/2] mtd: spi-nor: fix Spansion regressions (aliased with Winbond) Brian Norris
2016-01-06 0:03 ` Felix Fietkau
2016-01-06 2:07 ` bayi cheng
2016-03-26 18:57 ` Matthias Schiffer
2016-03-27 22:52 ` Matthias Schiffer
2016-03-28 20:56 ` Brian Norris
2016-03-29 19:14 ` Matthias Schiffer
2016-03-30 12:47 ` Cyrille Pitchen
2016-04-01 3:05 ` James Cameron
2016-04-01 20:27 ` Brian Norris
2016-04-04 15:33 ` Cyrille Pitchen
2016-04-26 5:54 ` Brian Norris
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