From: Michael Walle <michael@walle.cc>
To: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: Vignesh Raghavendra <vigneshr@ti.com>,
Rahul Bedarkar <rahul.bedarkar@imgtec.com>,
Tudor Ambarus <tudor.ambarus@microchip.com>,
Richard Weinberger <richard@nod.at>,
Rahul Bedarkar <rahulbedarkar89@gmail.com>,
Michael Walle <michael@walle.cc>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Brian Norris <computersforpeace@gmail.com>
Subject: [PATCH 0/2] mtd: spi-nor: OTP support
Date: Thu, 9 Jan 2020 00:36:52 +0100 [thread overview]
Message-ID: <20200108233654.29027-1-michael@walle.cc> (raw)
This patchset implements the mtd otp functions to allow access to the SPI
OTP data. Specific support is added for the Winbond flash chips.
In the past there was already an attempt by Rahul Bedarkar to add this, but
there was no response. These two patches are slightly based on his work.
https://lore.kernel.org/linux-mtd/1489754636-21461-1-git-send-email-rahul.bedarkar@imgtec.com/
This series is based on top of the following patches. They are not strictly
needed, but the patches might not apply cleanly and - more importantly -
OTP support for the new W25QnnJW flashes, which are added by one of the
patches, is already added.
https://lore.kernel.org/linux-mtd/20200107222317.3527-1-michael@walle.cc/
https://lore.kernel.org/linux-mtd/20200107222317.3527-2-michael@walle.cc/
https://lore.kernel.org/linux-mtd/20200103223423.14025-1-michael@walle.cc/
To dump an OTP area which doesn't start at zero (like for the Winbond
flashes) the following patch must be applied to mtd-utils:
https://lore.kernel.org/linux-mtd/20200108232359.27372-1-michael@walle.cc/
Michael Walle (2):
mtd: spi-nor: add OTP support
mtd: spi-nor: implement OTP support for Winbond flashes
drivers/mtd/spi-nor/spi-nor.c | 279 ++++++++++++++++++++++++++++++++++
include/linux/mtd/spi-nor.h | 52 +++++++
2 files changed, 331 insertions(+)
--
2.20.1
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next reply other threads:[~2020-01-08 23:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-08 23:36 Michael Walle [this message]
2020-01-08 23:36 ` [PATCH 1/2] mtd: spi-nor: add OTP support Michael Walle
2020-01-13 8:37 ` Michael Walle
2020-01-08 23:36 ` [PATCH 2/2] mtd: spi-nor: implement OTP support for Winbond flashes Michael Walle
2020-01-13 8:39 ` Michael Walle
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