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Signed-off-by: Simon Glass --- Changes in v4: - Change subject line Changes in v3: - Drop fixed-partition additional compatible string - Drop fixed-partitions from the example - Mention use of compatible instead of label Changes in v2: - Drop mention of 'enhanced features' in fixed-partitions.yaml - Mention Binman input and output properties - Use plain partition@xxx for the node name .../bindings/mtd/partitions/binman.yaml | 63 +++++++++++++++++++ .../bindings/mtd/partitions/partitions.yaml | 1 + MAINTAINERS | 5 ++ 3 files changed, 69 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/partitions/binman.yaml diff --git a/Documentation/devicetree/bindings/mtd/partitions/binman.yaml b/Documentation/devicetree/bindings/mtd/partitions/binman.yaml new file mode 100644 index 000000000000..7d6c8bd738f5 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/partitions/binman.yaml @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2023 Google LLC + +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mtd/partitions/binman.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Binman firmware layout + +maintainers: + - Simon Glass + +select: false + +description: | + The binman node provides a layout for firmware, used when packaging firmware + from multiple projects. It is based on fixed-partitions, with some + extensions, but uses 'compatible' to indicate the contents of the node, to + avoid perturbing or confusing existing installations which use 'label' for a + particular purpose. + + Binman supports properties used as inputs to the firmware-packaging process, + such as those which control alignment of partitions. This binding addresses + these 'input' properties. For example, it is common for the 'reg' property + (an 'output' property) to be set by Binman, based on the alignment requested + in the input. + + Once processing is complete, input properties have mostly served their + purpose, at least until the firmware is repacked later, e.g. due to a + firmware update. The 'fixed-partitions' binding should provide enough + information to read the firmware at runtime, including decompression if + needed. + + Documentation for Binman is available at: + + https://u-boot.readthedocs.io/en/latest/develop/package/binman.html + + with the current image-description format at: + + https://u-boot.readthedocs.io/en/latest/develop/package/binman.html#image-description-format + +allOf: + - $ref: /schemas/mtd/partitions/fixed-partitions.yaml# + +properties: + compatible: + const: binman + +additionalProperties: false + +examples: + - | + partitions { + compatible = "binman"; + #address-cells = <1>; + #size-cells = <1>; + + partition@100000 { + label = "u-boot"; + reg = <0x100000 0xf00000>; + }; + }; diff --git a/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml b/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml index 1dda2c80747b..849fd15d085c 100644 --- a/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml +++ b/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml @@ -15,6 +15,7 @@ maintainers: oneOf: - $ref: arm,arm-firmware-suite.yaml + - $ref: binman.yaml - $ref: brcm,bcm4908-partitions.yaml - $ref: brcm,bcm947xx-cfe-partitions.yaml - $ref: fixed-partitions.yaml diff --git a/MAINTAINERS b/MAINTAINERS index c934244acc31..ebc8158fe67d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3536,6 +3536,11 @@ F: Documentation/filesystems/bfs.rst F: fs/bfs/ F: include/uapi/linux/bfs_fs.h +BINMAN +M: Simon Glass +S: Supported +F: Documentation/devicetree/bindings/mtd/partitions/binman* + BITMAP API M: Yury Norov R: Andy Shevchenko -- 2.42.0.609.gbb76f46606-goog ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/ From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8B0CAC2BA1B for ; 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Mon, 09 Oct 2023 15:04:39 -0700 (PDT) Received: from kea.bld.corp.google.com ([2620:15c:183:200:138c:cf57:c18d:20f5]) by smtp.gmail.com with ESMTPSA id o3-20020a92d4c3000000b0034cd2c0afe8sm3164063ilm.56.2023.10.09.15.04.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Oct 2023 15:04:39 -0700 (PDT) From: Simon Glass To: devicetree@vger.kernel.org Cc: linux-mtd@lists.infradead.org, Miquel Raynal , Michael Walle , Rob Herring , U-Boot Mailing List , Tom Rini , Simon Glass , Conor Dooley , Dhruva Gole , Krzysztof Kozlowski , =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= , Richard Weinberger , Rob Herring , Vignesh Raghavendra , linux-kernel@vger.kernel.org Subject: [PATCH v4 1/3] dt-bindings: mtd: partitions: Add binman compatible Date: Mon, 9 Oct 2023 16:04:13 -0600 Message-ID: <20231009220436.2164245-1-sjg@chromium.org> X-Mailer: git-send-email 2.42.0.609.gbb76f46606-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Add a compatible string for binman, so we can extend fixed-partitions in various ways. Signed-off-by: Simon Glass --- Changes in v4: - Change subject line Changes in v3: - Drop fixed-partition additional compatible string - Drop fixed-partitions from the example - Mention use of compatible instead of label Changes in v2: - Drop mention of 'enhanced features' in fixed-partitions.yaml - Mention Binman input and output properties - Use plain partition@xxx for the node name .../bindings/mtd/partitions/binman.yaml | 63 +++++++++++++++++++ .../bindings/mtd/partitions/partitions.yaml | 1 + MAINTAINERS | 5 ++ 3 files changed, 69 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/partitions/binman.yaml diff --git a/Documentation/devicetree/bindings/mtd/partitions/binman.yaml b/Documentation/devicetree/bindings/mtd/partitions/binman.yaml new file mode 100644 index 000000000000..7d6c8bd738f5 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/partitions/binman.yaml @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2023 Google LLC + +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mtd/partitions/binman.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Binman firmware layout + +maintainers: + - Simon Glass + +select: false + +description: | + The binman node provides a layout for firmware, used when packaging firmware + from multiple projects. It is based on fixed-partitions, with some + extensions, but uses 'compatible' to indicate the contents of the node, to + avoid perturbing or confusing existing installations which use 'label' for a + particular purpose. + + Binman supports properties used as inputs to the firmware-packaging process, + such as those which control alignment of partitions. This binding addresses + these 'input' properties. For example, it is common for the 'reg' property + (an 'output' property) to be set by Binman, based on the alignment requested + in the input. + + Once processing is complete, input properties have mostly served their + purpose, at least until the firmware is repacked later, e.g. due to a + firmware update. The 'fixed-partitions' binding should provide enough + information to read the firmware at runtime, including decompression if + needed. + + Documentation for Binman is available at: + + https://u-boot.readthedocs.io/en/latest/develop/package/binman.html + + with the current image-description format at: + + https://u-boot.readthedocs.io/en/latest/develop/package/binman.html#image-description-format + +allOf: + - $ref: /schemas/mtd/partitions/fixed-partitions.yaml# + +properties: + compatible: + const: binman + +additionalProperties: false + +examples: + - | + partitions { + compatible = "binman"; + #address-cells = <1>; + #size-cells = <1>; + + partition@100000 { + label = "u-boot"; + reg = <0x100000 0xf00000>; + }; + }; diff --git a/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml b/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml index 1dda2c80747b..849fd15d085c 100644 --- a/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml +++ b/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml @@ -15,6 +15,7 @@ maintainers: oneOf: - $ref: arm,arm-firmware-suite.yaml + - $ref: binman.yaml - $ref: brcm,bcm4908-partitions.yaml - $ref: brcm,bcm947xx-cfe-partitions.yaml - $ref: fixed-partitions.yaml diff --git a/MAINTAINERS b/MAINTAINERS index c934244acc31..ebc8158fe67d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3536,6 +3536,11 @@ F: Documentation/filesystems/bfs.rst F: fs/bfs/ F: include/uapi/linux/bfs_fs.h +BINMAN +M: Simon Glass +S: Supported +F: Documentation/devicetree/bindings/mtd/partitions/binman* + BITMAP API M: Yury Norov R: Andy Shevchenko -- 2.42.0.609.gbb76f46606-goog