Hi Tudor, On Tue, Oct 29, 2024 at 07:16:08AM +0000, Tudor Ambarus wrote: > > > On 10/18/24 10:51 AM, Marcus Folkesson wrote: > > Add entry for the at25sf321b 32Mbit SPI flash which is able to provide > > SFDP information. > > then we could initialize the flash based on SFDP. If you don't need > locking then probably you won't need a flash entry at all. See > https://docs.kernel.org/driver-api/mtd/spi-nor.html Hrmf. It seems like I have been looking into the wrong datasheet. The actual device is at25sf321, not at25s321b, where the former can not be identified using the SFDP table. At25sf321 and at25s321b uses the same JEDEC ID though, probably what got me wrong in the first place. Please see page 10 in https://www.renesas.cn/zh/document/apn/an201-adesto-32mbit-products-overview for further reading. I will send a v2 with updated details. Best regards, Marcus Folkesson