From: Akhila YS <akhilayalmati@gmail.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: linux-mtd@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Akhila YS <akhilayalmati@gmail.com>
Subject: [PATCH] dt-bindings: mtd: nand-micronix: convert to DT schema
Date: Tue, 30 Dec 2025 07:20:21 +0000 [thread overview]
Message-ID: <20251230-macronix-v1-1-ff2aaab43644@gmail.com> (raw)
Convert Macronix NAND Randomizer OTP Enable Property binding to YAML format.
Signed-off-by: Akhila YS <akhilayalmati@gmail.com>
---
.../devicetree/bindings/mtd/nand-macronix.txt | 27 --------------
.../devicetree/bindings/mtd/nand-macronix.yaml | 41 ++++++++++++++++++++++
2 files changed, 41 insertions(+), 27 deletions(-)
diff --git a/Documentation/devicetree/bindings/mtd/nand-macronix.txt b/Documentation/devicetree/bindings/mtd/nand-macronix.txt
deleted file mode 100644
index ffab28a2c4d1..000000000000
--- a/Documentation/devicetree/bindings/mtd/nand-macronix.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-Macronix NANDs Device Tree Bindings
------------------------------------
-
-Macronix NANDs support randomizer operation for scrambling user data,
-which can be enabled with a SET_FEATURE. The penalty when using the
-randomizer are subpage accesses prohibited and more time period needed
-for program operation, i.e., tPROG 300us to 340us (randomizer enabled).
-Enabling the randomizer is a one time persistent and non reversible
-operation.
-
-For more high-reliability concern, if subpage write is not available
-with hardware ECC and not enabled at UBI level, then enabling the
-randomizer is recommended by default by adding a new specific property
-in children nodes.
-
-Required NAND chip properties in children mode:
-- randomizer enable: should be "mxic,enable-randomizer-otp"
-
-Example:
-
- nand: nand-controller@unit-address {
-
- nand@0 {
- reg = <0>;
- mxic,enable-randomizer-otp;
- };
- };
diff --git a/Documentation/devicetree/bindings/mtd/nand-macronix.yaml b/Documentation/devicetree/bindings/mtd/nand-macronix.yaml
new file mode 100644
index 000000000000..10f1d58adcef
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/nand-macronix.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/nand-macronix.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Macronix NAND Randomizer OTP Enable Property
+
+maintainers:
+ - Miquel Raynal <miquel.raynal@bootlin.com>
+ - Richard Weinberger <richard@nod.at>
+
+description:
+ Macronix NAND chips support an optional one-time programmable (OTP)
+ data randomizer that scrambles user data to improve reliability.
+ Enabling it is irreversible, prohibits subpage accesses, and slightly
+ increases program time. This property requests the driver to enable
+ the randomizer if not already set.
+
+properties:
+ mxic,enable-randomizer-otp:
+ type: boolean
+ description:
+ Presence of this property indicates that the data randomizer should
+ be enabled in OTP mode on the NAND chip.
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ nand-controller {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ nand@0 {
+ reg = <0>;
+ mxic,enable-randomizer-otp;
+ };
+ };
+
+...
---
base-commit: cc3aa43b44bdb43dfbac0fcb51c56594a11338a8
change-id: 20251229-macronix-c9d8b32c00cf
Best regards,
--
Akhila YS <akhilayalmati@gmail.com>
next reply other threads:[~2025-12-30 7:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-30 7:20 Akhila YS [this message]
2025-12-30 18:23 ` [PATCH] dt-bindings: mtd: nand-micronix: convert to DT schema Rob Herring
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