From: Michael Walle <michael@walle.cc>
To: linux-mtd@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Rob Herring <robh+dt@kernel.org>,
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
Michael Walle <michael@walle.cc>
Subject: [PATCH v2 0/5] mtd: core: OTP nvmem provider support
Date: Sat, 24 Apr 2021 13:06:03 +0200 [thread overview]
Message-ID: <20210424110608.15748-1-michael@walle.cc> (raw)
Some flashes provide one (or more) OTP regions which can be used to
store MAC addresses or serial numbers. Implement a NVMEM provider for
this storage which then can be used by a network card to fetch the
MAC adress for example.
This is an example DT node:
flash@0 {
otp {
compatible = "user-otp";
#address-cells = <1>;
#size-cells = <1>;
serial-number@0 {
reg = <0x0 0x8>;
};
};
};
Michael Walle (5):
nvmem: core: allow specifying of_node
dt-bindings: mtd: add YAML schema for the generic MTD bindings
dt-bindings: mtd: add OTP bindings
dt-bindings: mtd: spi-nor: add otp property
mtd: core: add OTP nvmem provider support
.../devicetree/bindings/mtd/common.txt | 16 +-
.../bindings/mtd/jedec,spi-nor.yaml | 6 +
.../devicetree/bindings/mtd/mtd.yaml | 89 +++++++++++
drivers/mtd/mtdcore.c | 148 ++++++++++++++++++
drivers/nvmem/core.c | 4 +-
include/linux/mtd/mtd.h | 2 +
include/linux/nvmem-provider.h | 2 +
7 files changed, 251 insertions(+), 16 deletions(-)
create mode 100644 Documentation/devicetree/bindings/mtd/mtd.yaml
--
2.20.1
next reply other threads:[~2021-04-24 11:06 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-24 11:06 Michael Walle [this message]
2021-04-24 11:06 ` [PATCH v2 1/5] nvmem: core: allow specifying of_node Michael Walle
2021-05-10 10:44 ` Miquel Raynal
2021-04-24 11:06 ` [PATCH v2 2/5] dt-bindings: mtd: add YAML schema for the generic MTD bindings Michael Walle
2021-05-10 10:44 ` Miquel Raynal
2021-05-17 15:12 ` Rob Herring
2021-05-17 17:21 ` Michael Walle
2021-04-24 11:06 ` [PATCH v2 3/5] dt-bindings: mtd: add OTP bindings Michael Walle
2021-05-03 17:12 ` Rob Herring
2021-05-10 10:44 ` Miquel Raynal
2021-04-24 11:06 ` [PATCH v2 4/5] dt-bindings: mtd: spi-nor: add otp property Michael Walle
2021-05-03 17:12 ` Rob Herring
2021-05-10 10:44 ` Miquel Raynal
2021-04-24 11:06 ` [PATCH v2 5/5] mtd: core: add OTP nvmem provider support Michael Walle
2021-05-10 10:43 ` Miquel Raynal
2021-05-18 18:55 ` [PATCH] mtd: core: Fix freeing of otp_info buffer Jon Hunter
2021-05-18 20:02 ` Michael Walle
2021-05-26 9:03 ` Miquel Raynal
2021-07-01 21:34 ` [PATCH v2 5/5] mtd: core: add OTP nvmem provider support Guenter Roeck
2021-07-01 22:10 ` Michael Walle
2021-07-02 1:55 ` Guenter Roeck
2021-07-02 9:33 ` Michael Walle
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