[PATCH v7 1/2] schemas: memory: Add ECC properties
Simon Glass
sjg at chromium.org
Mon Oct 9 21:22:21 CEST 2023
Hi Rob,
On Tue, 26 Sept 2023 at 13:42, Simon Glass <sjg at chromium.org> wrote:
>
> 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 at chromium.org>
> ---
>
> Changes in v7:
> - Drop unnecessary |
> - Add a blank line between properties
>
> Changes in v6:
> - Use a number of bits instead of a string property
> - Fix inidcates typo
>
> 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 | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
> diff --git a/dtschema/schemas/memory.yaml b/dtschema/schemas/memory.yaml
> index 1d74410..b3bf3c9 100644
> --- a/dtschema/schemas/memory.yaml
> +++ b/dtschema/schemas/memory.yaml
> @@ -35,6 +35,19 @@ patternProperties:
> For the purpose of identification, each NUMA node is associated with
> a unique token known as a node id.
>
> + ecc-detection-bits:
> + default: 0
> + description: |
> + If present, this indicates the number of bits of memory error which
> + can be detected and reported by the Error-Correction Code (ECC) memory
> + subsystem (typically 0, 1 or 2).
> +
> + ecc-correction-bits:
> + default: 0
> + description: |
> + If present, this indicates the number of bits of memory error which
> + can be corrected by the Error-Correction Code (ECC) memory subsystem
> + (typically 0, 1 or 2).
>
> required:
> - device_type
> --
> 2.42.0.515.g380fc7ccd1-goog
>
What is the status of this patch, please?
Regards,
Simon
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