[U-Boot-Users] [PATCH 6/6] cfi_flash: Use map_physmem() and unmap_physmem()

Haavard Skinnemoen hskinnemoen at atmel.com
Wed Dec 12 10:36:32 CET 2007

On Tue, 11 Dec 2007 19:49:26 +0100
Stefan Roese <sr at denx.de> wrote:

> When starting something like map_physmem(), we should consider the following 
> things:
> - Some platforms have >32bit physical address space, like PPC440 with 36bits.
>   So the type of phys_addr should not be fixed to u32. We need a new typedef
>   here. And/or perhaps something like the resource stuff from Linux.

Yeah, we probably need a typedef. How about phys_addr_t or something?

I can cook up a patch adding phys_addr_t typedef'd as unsigned long on
all architectures. If someone wants something different, please let me

> - We should add a size parameter


> - And a "flags" parameter as mentioned above would make sense too, for stuff
>   like caching etc.

Agreed. Platforms are of course free to ignore these extra parameters.


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