[PATCH v4 4/4] memory: Add ECC property

Simon Glass sjg at chromium.org
Tue Aug 29 21:18:09 CEST 2023

Some memories provides ECC 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 at chromium.org>

(no changes since v3)

Changes in v3:
- Add new patch to update the /memory nodes

 dtschema/schemas/memory.yaml | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/dtschema/schemas/memory.yaml b/dtschema/schemas/memory.yaml
index 1d74410..981af04 100644
--- a/dtschema/schemas/memory.yaml
+++ b/dtschema/schemas/memory.yaml
@@ -34,7 +34,14 @@ patternProperties:
           For the purpose of identification, each NUMA node is associated with
           a unique token known as a node id.
+      attr:
+        $ref: /schemas/types.yaml#/definitions/string-array
+        description: |
+          Attributes possessed by this memory region:
+            "single-bit-ecc" - supports single-bit ECC
+            "multi-bit-ecc" - supports multiple-bit ECC
+            "no-ecc" - non-ECC memory
       - device_type

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