[U-Boot-Users] cfi_flash is now working with 64 bit port width
wd at denx.de
Thu Jun 30 23:02:00 CEST 2005
In message <42C4592E.7080009 at orkun.us> you wrote:
> > __asm__ __volatile__ ("lfd 1, 0(%0)"::"r" (data));
> > __asm__ __volatile__ ("stfd 1, 0(%0)"::"r" (addr));
> > }
> This is probably not acceptable for cfi_flash.c. cfi_flash.c is used by
> multiple CPU architectures so PowerPC assembly cannot be used. You have
> to find a solution based on "C" only.
...which probably does not exist, so this is a valid and working
approach, although incomplete. Appropriate code for other archi-
tectures can be added later. At least for MIPS. Or is there an ARM
processor with 64 bit data bus?
> How did you use "double" and it did not work? Please give example of the
> work you tried...
It did not work in the intended sense as the compiler did not
generate any FP instructions - which is to be expected as we
explicitely tell him to use -msoft-float.
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
You have nice graphics, sound and animations when the system crashes.
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