Greetings! PCMCIA controller registers are mapped in an area that requires the upper four of the 36 bit addresses, so this can't work without 64 bit physical address support. Sick thing is that due to some stupid casts the whole thing compiles without warnings even without 64 bit support but of course doesn't run. However, that's a topic for a different patch. Uli Changes: * generate error when compiled without 64bit physical address support --- Index: drivers/pcmcia/au1000_generic.h =================================================================== RCS file: /home/cvs/linux/drivers/pcmcia/au1000_generic.h,v retrieving revision 1.4 diff -u -r1.4 au1000_generic.h --- drivers/pcmcia/au1000_generic.h 19 Oct 2004 07:26:37 -0000 1.4 +++ drivers/pcmcia/au1000_generic.h 23 Feb 2005 08:40:05 -0000 @@ -30,6 +30,10 @@ #include <pcmcia/cistpl.h> #include "cs_internal.h" +#if !defined(CONFIG_64BIT_PHYS_ADDR) +# error "need 64bit physical address support to access PCMCIA controller" +#endif + #define AU1000_PCMCIA_POLL_PERIOD (2*HZ) #define AU1000_PCMCIA_IO_SPEED (255) #define AU1000_PCMCIA_MEM_SPEED (300)