Re: [PATCH 4/6] dt-bindings: memory: fsl: Add compatible string nxp, imx9-memory-controller
From: Alexander Stein <hidden>
Date: 2024-07-10 07:18:19
Also in:
imx, linux-devicetree, linux-edac, lkml
Hi Frank, Am Dienstag, 9. Juli 2024, 22:23:05 CEST schrieb Frank Li:
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.
Is this controller the same for all i.MX9 SoC? E.g. i.MX91, i.MX93, i.MX95 and any future variants? Best regards, Alexander
quoted hunk ↗ jump to hunk
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. 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:
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