Hi Fabian, On Wed Apr 29, 2026 at 3:58 PM CEST, Fabian Pflug wrote: > Infineon CY15V104QSN is an FRAM Chip with Quad-SPI interface, a size of > 4Mb and a nominal Voltage of 1.8V > It should be the same as CY15B104QSN, just with a different Voltage > range. (3.0V) Please have a look at the at25 driver. This isn't a flash as it doesn't have (not even an emulated) erase command and there are no erase blocks. (And I really like to get rid of the NO_ERASE flag.) Btw, you seem to have an old linux kernel with an outdated MAINTAINERS. -michael