lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 30 Sep 2022 15:06:03 -0700 From: Julius Werner <jwerner@...omium.org> To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org> Cc: Rob Herring <robh+dt@...nel.org>, Dmitry Osipenko <digetx@...il.com>, Doug Anderson <dianders@...omium.org>, Jian-Jia Su <jjsu@...gle.com>, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, Julius Werner <jwerner@...omium.org>, Rob Herring <robh@...nel.org> Subject: [PATCH 1/4 v5] dt-bindings: memory: Factor out common properties of LPDDR bindings The bindings for different LPDDR versions mostly use the same kinds of properties, so in order to reduce duplication when we're adding support for more versions, this patch creates a new lpddr-props subschema that can be referenced by the others to define these common parts. (This will consider a few smaller I/O width and density numbers "legal" for LPDDR3 that are usually not used there, but this should be harmless.) Signed-off-by: Julius Werner <jwerner@...omium.org> Acked-by: Rob Herring <robh@...nel.org> --- .../ddr/jedec,lpddr-props.yaml | 52 +++++++++++++++++++ .../memory-controllers/ddr/jedec,lpddr2.yaml | 40 ++------------ .../memory-controllers/ddr/jedec,lpddr3.yaml | 32 ++---------- 3 files changed, 60 insertions(+), 64 deletions(-) create mode 100644 Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr-props.yaml Changelog: - v2: - removed minItems - reordered io-width enum from lowest to highest - moved `$ref` below `mainainers` - removed part about undeprecating manufacturer-id - v3: - no changes - v4: - removed quotes from schema $ref strings - v5: - updated acked-by list diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr-props.yaml b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr-props.yaml new file mode 100644 index 00000000000000..02700ac3c387ec --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr-props.yaml @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr-props.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Common properties for LPDDR types + +description: + Different LPDDR types generally use the same properties and only differ in the + range of legal values for each. This file defines the common parts that can be + reused for each type. + +maintainers: + - Krzysztof Kozlowski <krzk@...nel.org> + +properties: + revision-id: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: + Revision IDs read from Mode Register 6 and 7. One byte per uint32 cell (i.e. <MR6 MR7>). + maxItems: 2 + items: + minimum: 0 + maximum: 255 + + density: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Density in megabits of SDRAM chip. Decoded from Mode Register 8. + enum: + - 64 + - 128 + - 256 + - 512 + - 1024 + - 2048 + - 4096 + - 8192 + - 16384 + - 32768 + + io-width: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + IO bus width in bits of SDRAM chip. Decoded from Mode Register 8. + enum: + - 8 + - 16 + - 32 + +additionalProperties: true diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml index 9d78f140609b6c..e5e15d288d89b2 100644 --- a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml @@ -9,6 +9,9 @@ title: LPDDR2 SDRAM compliant to JEDEC JESD209-2 maintainers: - Krzysztof Kozlowski <krzk@...nel.org> +allOf: + - $ref: jedec,lpddr-props.yaml# + properties: compatible: oneOf: @@ -41,41 +44,6 @@ properties: Property is deprecated, use revision-id instead. deprecated: true - revision-id: - $ref: /schemas/types.yaml#/definitions/uint32-array - description: | - Revision IDs read from Mode Register 6 and 7. One byte per uint32 cell (i.e. <MR6 MR7>). - minItems: 2 - maxItems: 2 - items: - minimum: 0 - maximum: 255 - - density: - $ref: /schemas/types.yaml#/definitions/uint32 - description: | - Density in megabits of SDRAM chip. Obtained from device datasheet. - enum: - - 64 - - 128 - - 256 - - 512 - - 1024 - - 2048 - - 4096 - - 8192 - - 16384 - - 32768 - - io-width: - $ref: /schemas/types.yaml#/definitions/uint32 - description: | - IO bus width in bits of SDRAM chip. Obtained from device datasheet. - enum: - - 32 - - 16 - - 8 - tRRD-min-tck: $ref: /schemas/types.yaml#/definitions/uint32 maximum: 16 @@ -168,7 +136,7 @@ required: - density - io-width -additionalProperties: false +unevaluatedProperties: false examples: - | diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr3.yaml b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr3.yaml index 48908a19473c3f..0f7ab51842ae09 100644 --- a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr3.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr3.yaml @@ -9,6 +9,9 @@ title: LPDDR3 SDRAM compliant to JEDEC JESD209-3 maintainers: - Krzysztof Kozlowski <krzk@...nel.org> +allOf: + - $ref: jedec,lpddr-props.yaml# + properties: compatible: items: @@ -20,24 +23,6 @@ properties: const: 1 deprecated: true - density: - $ref: /schemas/types.yaml#/definitions/uint32 - description: | - Density in megabits of SDRAM chip. - enum: - - 4096 - - 8192 - - 16384 - - 32768 - - io-width: - $ref: /schemas/types.yaml#/definitions/uint32 - description: | - IO bus width in bits of SDRAM chip. - enum: - - 32 - - 16 - manufacturer-id: $ref: /schemas/types.yaml#/definitions/uint32 description: | @@ -45,15 +30,6 @@ properties: deprecated, manufacturer should be derived from the compatible. deprecated: true - revision-id: - $ref: /schemas/types.yaml#/definitions/uint32-array - minItems: 2 - maxItems: 2 - items: - maximum: 255 - description: | - Revision value of SDRAM chip read from Mode Registers 6 and 7. - '#size-cells': const: 0 deprecated: true @@ -206,7 +182,7 @@ required: - density - io-width -additionalProperties: false +unevaluatedProperties: false examples: - | -- 2.31.0
Powered by blists - more mailing lists