[U-Boot] CFI Flash write speed

Wolfgang Denk
2009-08-13T11:59:14Z

In message <006201ca1c0c$55a62ea0$00f28be0$@de> you wrote:
>
> CFG_FLASH_USE_BUFFER_WRITE is already defined in the project-header file. I
> have configured the CPU registers for access the flash memory with maximum
> speed. But I think it is although very slow. If I use Windows CE to copy
> something to the flash memory I have transfer rates of 140kB/s. With U-Boot
> I have only 75kB/s.
> What else can I do to increase the transfer rate?

I guess the PXA270 suffers like all (?) ARM from the fact that data
cache is not effective. Jean-Christophe has been promising for some
time to submit patches that are supposed to fix this.

I have no idea though when these might hit mainline.

Best regards,

Wolfgang Denk

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