@@ -34,7 +34,37 @@ patternProperties:
description:
For the purpose of identification, each NUMA node is associated with
a unique token known as a node id.
+ ecc-detection:
+ $ref: /schemas/types.yaml#/definitions/string
+ enum:
+ - none
+ - single-bit
+ - multi-bit
+ description: |
+ If present, this inidcates the type of memory errors which can be
+ detected and reported by the Error-Correction Code (ECC) memory
+ subsystem:
+ none - No error detection is possible
+ single-bit - Detects and reports single-bit ECC errors
+ multi-bit - Detects and reports multiple-bit ECC errors
+
+ If not present, this is equivalent to 'none'.
+ ecc-correction:
+ $ref: /schemas/types.yaml#/definitions/string
+ enum:
+ - none
+ - single-bit
+ - multi-bit
+ description: |
+ If present, this inidcates the type of memory errors which can be
+ corrected by the Error-Correction Code (ECC) memory subsystem:
+
+ none - No error correction is possible
+ single-bit - Corrects single-bit ECC errors
+ multi-bit - Corrects multiple-bit ECC errors
+
+ If not present, this is equivalent to 'none'.
required:
- device_type
Some memories provide ECC detection and/or correction. For software which wants to check memory, it is helpful to see which regions provide this feature. Add this as a property of the /memory nodes, since it presumably follows the hardware-level memory system. Signed-off-by: Simon Glass <sjg@chromium.org> --- Changes in v5: - Redo to make this property specific to ECC - Provide properties both for detection and correction Changes in v3: - Add new patch to update the /memory nodes dtschema/schemas/memory.yaml | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+)