[PATCH v2 4/6] dt-bindings: memory: fsl: Add compatible string nxp,imx9-memory-controller

Frank Li
2024-10-11T15:43:15Z

iMX9 memory controller is similar with other layerscape chips. But some
register layout has a little bit difference, so add new compatible string
'nxp,imx9-memory-controller' for it.

imx9 need two 'reg', one for DDR controller and the other is ECC inject
engine register space. Keep the same restriction for other compatible
string.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
.../bindings/memory-controllers/fsl/fsl,ddr.yaml | 31 +++++++++++++++++++++-
1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ddr.yaml b/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ddr.yaml
index 84f778a99546b..e0786153eec73 100644
--- a/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ddr.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ddr.yaml
@@ -40,6 +40,7 @@ properties:
- fsl,p1021-memory-controller
- fsl,p2020-memory-controller
- fsl,qoriq-memory-controller
+ - nxp,imx9-memory-controller

interrupts:
maxItems: 1
@@ -51,13 +52,41 @@ properties:
type: boolean

reg:
- maxItems: 1
+ items:
+ - description: Controller register space
+ - description: Inject register space
+ minItems: 1
+
+ reg-names:
+ items:
+ - const: ctrl
+ - const: inject
+ minItems: 1

required:
- compatible
- interrupts
- reg

+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nxp,imx9-memory-controller
+ then:
+ properties:
+ reg:
+ minItems: 2
+ reg-names:
+ minItems: 2
+ else:
+ properties:
+ reg:
+ maxItems: 1
+ reg-names: false
+
additionalProperties: false

examples:

--
2.34.1