On 5/3/19 12:37 PM, Simon Goldschmidt wrote: > On Fri, May 3, 2019 at 12:00 PM Marek Vasut <marek.va...@gmail.com> wrote: >> >> On 5/3/19 10:53 AM, Simon Goldschmidt wrote: >>> Tested on socfpga cyclone5 where this is required to ensure that the >>> boot rom can access this flash after warm reboot. >> >> Are you sure _all_ variants of the N25Q256 support 4NB opcodes ? >> I think there were some which didn't, but I might be wrong. > > Oh, damn, you're right. The documentation [1] statest that 4-byte erase and > program opcodes are only supported for part numbers N25Q256A83ESF40x, > N25Q256A83E1240x and N25QA83ESFA0F.
;-) > Any idea of how I can still enable 4-byte opcodes for my chip? Maybe SFDP tables contains some information whether the chip supports the 4B opcodes ? -- Best regards, Marek Vasut
