From: Arseniy Krasnov <avkrasnov@salutedevices.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Neil Armstrong <neil.armstrong@linaro.org>,
Kevin Hilman <khilman@baylibre.com>,
Jerome Brunet <jbrunet@baylibre.com>,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: <linux-mtd@lists.infradead.org>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-amlogic@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <oxffffaa@gmail.com>,
<kernel@sberdevices.ru>,
Arseniy Krasnov <avkrasnov@salutedevices.com>
Subject: [PATCH v4 1/2] dt-bindings: mtd: amlogic,meson-nand: support fields for boot ROM code
Date: Wed, 10 Apr 2024 21:54:08 +0300 [thread overview]
Message-ID: <20240410185409.2635622-2-avkrasnov@salutedevices.com> (raw)
In-Reply-To: <20240410185409.2635622-1-avkrasnov@salutedevices.com>
Boot ROM code on Meson requires that some pages on NAND must be written
in special mode: "short" ECC mode where each block is 384 bytes and
scrambling mode is on. Such pages located with the specified interval
within specified offset. Both interval and offset are located in the
device tree and used by driver if 'nand-is-boot-medium' is set for
NAND chip.
Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
---
.../bindings/mtd/amlogic,meson-nand.yaml | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml
index 57b6957c8415..838ae1847ef0 100644
--- a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml
+++ b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml
@@ -64,11 +64,25 @@ patternProperties:
items:
maximum: 0
+ amlogic,boot-pages:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ The NFC driver needs this information to select ECC
+ algorithms supported by the boot ROM.
+
+ amlogic,boot-page-step:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ The NFC driver needs this information to select ECC
+ algorithms supported by the boot ROM (in pages).
+
unevaluatedProperties: false
dependencies:
nand-ecc-strength: [nand-ecc-step-size]
nand-ecc-step-size: [nand-ecc-strength]
+ amlogic,boot-pages: [nand-is-boot-medium, "amlogic,boot-page-step"]
+ amlogic,boot-page-step: [nand-is-boot-medium, "amlogic,boot-pages"]
required:
--
2.35.0
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next prev parent reply other threads:[~2024-04-10 19:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-10 18:54 [PATCH v4 0/2] Meson: R/W support for pages used by boot ROM Arseniy Krasnov
2024-04-10 18:54 ` Arseniy Krasnov [this message]
2024-04-15 21:27 ` [PATCH v4 1/2] dt-bindings: mtd: amlogic,meson-nand: support fields for boot ROM code Rob Herring
2024-04-10 18:54 ` [PATCH v4 2/2] mtd: rawnand: meson: support R/W mode for boot ROM Arseniy Krasnov
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