Can we specify more than one jedec,spi-nor flash device on the same spi port in the DTS file?https://devzone.nordicsemi.com/f/nordic-q-a/103192/can-we-specify-more-than-one-jedec-spi-nor-flash-device-on-the-same-spi-port-in-the-dts-fileHello, We are looking to add a second source for the SPI flash device on our board. Can we add support for multiple jedec,spi-nor flash devices on the same spi port (spi2) in our project? Thanks, Mike Nortonen-USTelligent Community 13Tue, 05 Sep 2023 10:18:28 GMTRE: Can we specify more than one jedec,spi-nor flash device on the same spi port in the DTS file?https://devzone.nordicsemi.com/thread/444459?ContentTypeID=1Tue, 05 Sep 2023 10:18:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5e2fe050-2c5d-46f8-b9a2-ea7dca58f09cNaeem Maroof<p>I think Yes as the two devices in question are the same and only their JEDEC ID are different (which would be configured in the overlay).</p><div style="clear:both;"></div>RE: Can we specify more than one jedec,spi-nor flash device on the same spi port in the DTS file?https://devzone.nordicsemi.com/thread/444170?ContentTypeID=1Fri, 01 Sep 2023 22:21:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:aa3abab9-df99-49c4-ab8e-a08c0a62e53amnor<p>Thank you for the answer.</p> <p>Is it possible to support the same mcuboot partition in these two different devices?</p><div style="clear:both;"></div>RE: Can we specify more than one jedec,spi-nor flash device on the same spi port in the DTS file?https://devzone.nordicsemi.com/thread/444098?ContentTypeID=1Fri, 01 Sep 2023 12:25:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a25964fe-5bcc-415f-8cff-ec006c1f6a36Naeem Maroof<p>Hi Mike,</p> <p>If you want to have two spi nodes on the same spi controller then you need to define spi nodes in the dts using overlay. Both spi nodes will have their own CS pin, that is how only one of the spi node device is enabled while rest of the pins (CLK, MOSI, MISO) are shared.</p> <p>If you plan to have only one spi device, then you can update the JEDEC ID and other information in the overlay.</p><div style="clear:both;"></div>RE: Can we specify more than one jedec,spi-nor flash device on the same spi port in the DTS file?https://devzone.nordicsemi.com/thread/443790?ContentTypeID=1Wed, 30 Aug 2023 18:36:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6328f2b4-33a8-47e0-85a1-d3d3bf58a2f2mnor<p>We want to support more than one manufacturer of SPI flash in hardware. This is to be ready if we can&#39;t buy one SPI flash device because of shortages but another is available from a different manufacturer. The interface is the same to these different flash devices. They differ only is JEDEC ID and possibly size.</p> <p>In this case all of these supported SPI flash devices would share the same CS pin.</p> <p>Is it possible to do this in the device overlay?</p> <p></p> <p>Mike</p><div style="clear:both;"></div>RE: Can we specify more than one jedec,spi-nor flash device on the same spi port in the DTS file?https://devzone.nordicsemi.com/thread/443435?ContentTypeID=1Mon, 28 Aug 2023 15:51:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5101c83b-1ee3-488f-820d-4016ed083b6cNaeem Maroof<p>Hi,</p> <p></p> <p>Yes, you can do that by adding appropriate entry in the device overlay.</p> <p>Please note that each device (on the same spi controller) should have its own CS pin.</p> <p></p> <p>BR, Naeem</p><div style="clear:both;"></div>