diff options
| author | Julius Werner <jwerner@chromium.org> | 2022-09-30 15:06:03 -0700 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> | 2022-10-18 13:02:58 -0400 |
| commit | b7178cd53ff954b031bf96aed322ab185e0e7f58 (patch) | |
| tree | 072e4263d5c7330750069cb64ef98a5152898ed7 /Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml | |
| parent | 1de3866f6d7a53dbee0ebe7d71eac738fb90972f (diff) | |
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@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220930220606.303395-1-jwerner@chromium.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml | 40 |
1 files changed, 4 insertions, 36 deletions
diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml index 9d78f140609b..e5e15d288d89 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@kernel.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: - | |