Re: [PATCH v4 1/7] dt-bindings: mtd: jedec,spi-nor: allow the SFDP to be exposed via NVMEM

[Rob Herring]

On Thu, Jul 02, 2026 at 06:55:15AM +0000, Manikandan.M@xxxxxxxxxxxxx wrote:
> Hi Krzysztof,
> 
> On 7/2/26 11:46 AM, Krzysztof Kozlowski wrote:
> > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> > 
> > On Tue, Jun 30, 2026 at 02:54:00PM +0530, Manikandan Muralidharan wrote:
> >> Add an optional "sfdp" child node (compatible "jedec,sfdp") that
> >> describes the SFDP as a read-only NVMEM provider via nvmem.yaml, so its
> > 
> > What is SFDP?
> > 
> SFDP is the Serial Flash Discoverable Parameters -- a JEDEC-standardised
> (JESD216) read-only parameter table present in most SPI NOR flashes, the 
> table contents provide basic information about the flash. There are 
> standard tables which are specified by the JEDEC standard and there are 
> vendor tables.

Is SFDP present or not discoverable? Or we have a table of discoverable 
parameters that itself is not discoverable.

If it is discoverable, why does this need to be in DT?

Rob