Hello Vijay, > -----Urspr?ngliche Nachricht----- > Von: linuxppc-embedded-bounces at ozlabs.org > [mailto:linuxppc-embedded-bounces at ozlabs.org]Im Auftrag von Vijay > Padiyar
> with reference to my earlier mail, when do we need to use > ioremap() and when > do we need to use request_mem_region()? Or do we need to use both in a > particular sequence? I think first you have to progamm the chip select of your cpld correctly. (see the mail from Mark) You can do this in your module_init funktion. Now you call request_mem_region to mark this memory used. Now can mapp the virtual adress to your process by calling ioremap(). Regards Achim