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| author | Dmitry Osipenko <digetx@gmail.com> | 2021-10-07 01:46:53 +0300 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> | 2021-10-15 10:52:47 +0300 |
| commit | 3539a2c6c68923d46a5f014b593b883da6a9bbb9 (patch) | |
| tree | 71e44a2c773c4642147eb93d6cfb57c5ca3cfd0e /Documentation/devicetree/bindings/memory-controllers | |
| parent | 9e17f71e9c334f14ad6a8ec3edc09c7a4244e12f (diff) | |
| download | linux-3539a2c6c68923d46a5f014b593b883da6a9bbb9.tar.xz | |
dt-bindings: memory: lpddr2: Add revision-id properties
Add optional revision-id standard LPDDR2 properties which will help to
identify memory chip.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211006224659.21434-4-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Diffstat (limited to 'Documentation/devicetree/bindings/memory-controllers')
| -rw-r--r-- | Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml index f931fe910ce5..fe573750577e 100644 --- a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml @@ -24,6 +24,18 @@ properties: - enum: - jedec,lpddr2-nvm + revision-id1: + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 255 + description: | + Revision 1 value of SDRAM chip. Obtained from device datasheet. + + revision-id2: + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 255 + description: | + Revision 2 value of SDRAM chip. Obtained from device datasheet. + density: $ref: /schemas/types.yaml#/definitions/uint32 description: | @@ -151,6 +163,8 @@ examples: compatible = "elpida,ECB240ABACN", "jedec,lpddr2-s4"; density = <2048>; io-width = <32>; + revision-id1 = <1>; + revision-id2 = <0>; tRPab-min-tck = <3>; tRCD-min-tck = <3>; |