S25FL512 vs S25FS512

[Barbier, Renaud]

>You lost me here. According to Table 52. The device id is 02h.
I was looking at Table 40 page 68. Hence, the confusion.


>> Is the SPI support for S25FS512 in Linux 5.14 disabling the bottom 
>> boot feature? I have not found it in the code. Only something related 
>> to page size.

>What is a bottom boot feature? Are you talking about locking?
This flash S25FS512 is configured by default  to have the first 256KiB sector divided into 8*4KiB + 224KiB.
This could be the top sector or disable with the configuration register.
Erasing 8 4KiB sectors requires a different command than erasing the 256KiB sectors.

I have now found the code in U-boot supporting those 8 sectors. 

Thanks for your answer.




-michael