Need clarification over QSPI driver for NRF54L15

[Maldus512]

Hello everyone,
I need to attach a QSPI memory to an NRF54L15 module. I am led to believe that this should be supported out of the box but cannot understand how to use the provided drivers.
The IC I'm going to use is an IS25WP016D, but for now I'd be happy to see an example working for the mx25r6435f that should be present in the NRF54L15-DK I'm experimenting on.

For starters, the datasheet does not mention a QSPI peripheral except for the pins function table. I have found an example under `zephyr/samples/drivers/spi_flash` that doesn't work because I can't construct the device tree `qspi` node for this reason.
I have also found the JESD216 example under `nrf/samples/zephyr/drivers/jesd216` but that doesn't work either, complaining the lack of a `jesd216.h` header.

For reference, I've been following the discussion here and here to get started.

Can anyone give me some pointers?

[AHaug]

Hi,

I found some new information today so I'm very glad that you replied so that I got this case back in my queue. I seem to have been wrong in my previous reply. 

I was under the impression that no JEDEC216 support meant no external flash communication supported, but to correct my self, you can use the MSPI shim driver. As the doc states, "This allows for communication with devices that use MSPI bus-based Zephyr drivers, such as flash chips or displays.".

This overlay here also showcases how to set up the nrf54l15dk to use qspi to the existing mx25 flash SoC that's on the DK: https://github.com/nrfconnect/sdk-nrf/blob/07b31ea2a587f129af3dadec1e5ea233071d8930/samples/zephyr/drivers/jesd216/boards/nrf54l15dk_nrf54l15_cpuapp_sqspi.overlay#L4 

There are however limitations, among them the feature list in the link in my previous reply, so I'm not sure how well the support in the jesd216 sample I posted above translates to the is25w flash you're attempting to use.

Let me know if this new information addresses your concerns

Kind regards,
Andreas