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Message-Id: <20260108-dt-mtd-partitions-v1-9-124a53ce6279@kernel.org>
Date: Thu, 08 Jan 2026 11:53:18 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Miquel Raynal <miquel.raynal@...tlin.com>,
Richard Weinberger <richard@....at>, Vignesh Raghavendra <vigneshr@...com>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Brian Norris <computersforpeace@...il.com>,
Kamal Dasu <kdasu.kdev@...il.com>,
William Zhang <william.zhang@...adcom.com>, Nick Terrell <terrelln@...com>,
David Sterba <dsterba@...e.com>,
Rafał Miłecki <rafal@...ecki.pl>,
Simon Glass <sjg@...omium.org>, Linus Walleij <linusw@...nel.org>,
Ulf Hansson <ulf.hansson@...aro.org>,
Marcus Folkesson <marcus.folkesson@...il.com>,
Tony Lindgren <tony@...mide.com>, Roger Quadros <rogerq@...nel.org>,
Hauke Mehrtens <hauke@...ke-m.de>
Cc: linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org
Subject: [PATCH 09/10] dt-bindings: mtd: partitions: Convert brcm,trx to DT
schema
Convert the brcm,trx partition binding to DT schema format.
As the "linksys,ns-firmware" compatible also uses "brcm,trx" as a
fallback, move it to the converted binding.
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
.../bindings/mtd/partitions/brcm,trx.txt | 42 --------------
.../bindings/mtd/partitions/brcm,trx.yaml | 65 ++++++++++++++++++++++
.../mtd/partitions/linksys,ns-partitions.yaml | 8 +--
3 files changed, 66 insertions(+), 49 deletions(-)
diff --git a/Documentation/devicetree/bindings/mtd/partitions/brcm,trx.txt b/Documentation/devicetree/bindings/mtd/partitions/brcm,trx.txt
deleted file mode 100644
index c2175d3c82ec..000000000000
--- a/Documentation/devicetree/bindings/mtd/partitions/brcm,trx.txt
+++ /dev/null
@@ -1,42 +0,0 @@
-Broadcom TRX Container Partition
-================================
-
-TRX is Broadcom's official firmware format for the BCM947xx boards. It's used by
-most of the vendors building devices based on Broadcom's BCM47xx SoCs and is
-supported by the CFE bootloader.
-
-Design of the TRX format is very minimalistic. Its header contains
-identification fields, CRC32 checksum and the locations of embedded partitions.
-Its purpose is to store a few partitions in a format that can be distributed as
-a standalone file and written in a flash memory.
-
-Container can hold up to 4 partitions. The first partition has to contain a
-device executable binary (e.g. a kernel) as it's what the CFE bootloader starts
-executing. Other partitions can be used for operating system purposes. This is
-useful for systems that keep kernel and rootfs separated.
-
-TRX doesn't enforce any strict partition boundaries or size limits. All
-partitions have to be less than the 4GiB max size limit.
-
-There are two existing/known TRX variants:
-1) v1 which contains 3 partitions
-2) v2 which contains 4 partitions
-
-There aren't separated compatible bindings for them as version can be trivialy
-detected by a software parsing TRX header.
-
-Required properties:
-- compatible : (required) must be "brcm,trx"
-
-Optional properties:
-
-- brcm,trx-magic: TRX magic, if it is different from the default magic
- 0x30524448 as a u32.
-
-Example:
-
-flash@0 {
- partitions {
- compatible = "brcm,trx";
- };
-};
diff --git a/Documentation/devicetree/bindings/mtd/partitions/brcm,trx.yaml b/Documentation/devicetree/bindings/mtd/partitions/brcm,trx.yaml
new file mode 100644
index 000000000000..71458b2c05fe
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/partitions/brcm,trx.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/partitions/brcm,trx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom TRX Container Partition
+
+maintainers:
+ - Hauke Mehrtens <hauke@...ke-m.de>
+ - Rafał Miłecki <rafal@...ecki.pl>
+
+description: >
+ TRX is Broadcom's official firmware format for the BCM947xx boards. It's used by
+ most of the vendors building devices based on Broadcom's BCM47xx SoCs and is
+ supported by the CFE bootloader.
+
+ Design of the TRX format is very minimalistic. Its header contains
+ identification fields, CRC32 checksum and the locations of embedded partitions.
+ Its purpose is to store a few partitions in a format that can be distributed as
+ a standalone file and written in a flash memory.
+
+ Container can hold up to 4 partitions. The first partition has to contain a
+ device executable binary (e.g. a kernel) as it's what the CFE bootloader starts
+ executing. Other partitions can be used for operating system purposes. This is
+ useful for systems that keep kernel and rootfs separated.
+
+ TRX doesn't enforce any strict partition boundaries or size limits. All
+ partitions have to be less than the 4GiB max size limit.
+
+ There are two existing/known TRX variants:
+ 1) v1 which contains 3 partitions
+ 2) v2 which contains 4 partitions
+
+ There aren't separated compatible bindings for them as version can be trivially
+ detected by a software parsing TRX header.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: linksys,ns-firmware
+ - const: brcm,trx
+ - const: brcm,trx
+
+ brcm,trx-magic:
+ description: TRX magic, if it is different from the default magic.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 0x30524448
+
+required:
+ - compatible
+
+allOf:
+ - $ref: partition.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ flash {
+ partitions {
+ compatible = "brcm,trx";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mtd/partitions/linksys,ns-partitions.yaml b/Documentation/devicetree/bindings/mtd/partitions/linksys,ns-partitions.yaml
index 02ecb51fcece..61d7e701b110 100644
--- a/Documentation/devicetree/bindings/mtd/partitions/linksys,ns-partitions.yaml
+++ b/Documentation/devicetree/bindings/mtd/partitions/linksys,ns-partitions.yaml
@@ -30,13 +30,7 @@ properties:
patternProperties:
"^partition@[0-9a-f]+$":
- $ref: partition.yaml#
- properties:
- compatible:
- items:
- - const: linksys,ns-firmware
- - const: brcm,trx
- unevaluatedProperties: false
+ $ref: partition.yaml#/$defs/partition-node
required:
- "#address-cells"
--
2.51.0
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