Add optional revision-id standard LPDDR2 properties which will help to
identify memory chip.
Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
---
.../memory-controllers/ddr/jedec,lpddr2.yaml | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml
index d99ccad54938..01efb43c3425 100644
--- a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml
@@ -24,6 +24,16 @@ properties:
- enum:
- jedec,lpddr2-nvm
+ revision-id1:
+ maximum: 255
+ description: |
+ Revision 1 value of SDRAM chip. Obtained from device datasheet.
+
+ revision-id2:
+ maximum: 255
+ description: |
+ Revision 2 value of SDRAM chip. Obtained from device datasheet.
+
density:
description: |
Density in megabits of SDRAM chip. Obtained from device datasheet.
@@ -138,6 +148,8 @@ 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>;
--
2.32.0
