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-rw-r--r--Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml25
1 files changed, 18 insertions, 7 deletions
diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml
index 25ed0266f6dd..9d78f140609b 100644
--- a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: LPDDR2 SDRAM compliant to JEDEC JESD209-2
maintainers:
- - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
+ - Krzysztof Kozlowski <krzk@kernel.org>
properties:
compatible:
@@ -30,12 +30,26 @@ properties:
maximum: 255
description: |
Revision 1 value of SDRAM chip. Obtained from device datasheet.
+ Property is deprecated, use revision-id instead.
+ deprecated: true
revision-id2:
$ref: /schemas/types.yaml#/definitions/uint32
maximum: 255
description: |
Revision 2 value of SDRAM chip. Obtained from device datasheet.
+ 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
@@ -142,14 +156,12 @@ properties:
patternProperties:
"^lpddr2-timings":
- type: object
+ $ref: jedec,lpddr2-timings.yaml
description: |
The lpddr2 node may have one or more child nodes of type "lpddr2-timings".
"lpddr2-timings" provides AC timing parameters of the device for
a given speed-bin. The user may provide the timings for as many
- speed-bins as is required. Please see Documentation/devicetree/
- bindings/memory-controllers/ddr/lpddr2-timings.txt for more information
- on "lpddr2-timings".
+ speed-bins as is required.
required:
- compatible
@@ -164,8 +176,7 @@ examples:
compatible = "elpida,ECB240ABACN", "jedec,lpddr2-s4";
density = <2048>;
io-width = <32>;
- revision-id1 = <1>;
- revision-id2 = <0>;
+ revision-id = <1 0>;
tRPab-min-tck = <3>;
tRCD-min-tck = <3>;