There is official errata named "2.5.6 Indirect write mode limited to 256 Mbytes" where indirect OSPI write requests for addr >256MB are written to invalid target address. I tested the behavior and it seems address is effectively truncated to 28bits. Contrary to what errata says, I can see the same truncated address also for indirect reads.
From what I see the problem is affecting NORs only because NAND uses page addressing in 0x13/0x10 cmds and these are always smaller than 24bits.
Is the assumption correct ?
Martin
