Hi Mark, broonie@xxxxxxxxxx wrote on Wed, 27 Sep 2023 16:37:35 +0200: > On Wed, Sep 27, 2023 at 02:11:47PM +0000, Usyskin, Alexander wrote: > > > There is a Discreet Graphic device with embedded SPI (controller & flash). > > The embedded SPI is not visible to OS. > > There is another HW in the chip that gates access to the controller and > > exposes registers for: > > region select; read and write (4 and 8 bytes); erase (4K); error register; > > So assuming that's flash region select it sounds like this is a MTD > controller and the fact that there's SPI isn't really relevant at all > from a programming model point of view and it should probably be > described as a MTD controller of some kind. Does that sound about > right? Yeah in this case it seems the best option if the OS only has access to a very small subset of what the spi controller can do. Thanks, Miquèl
