Arnd Bergmann <arnd@xxxxxxxx> 写于 2009-06-10 01:18:20:
> On Tuesday 09 June 2009, liqin.chen@xxxxxxxxxxxxx wrote:
>
> Having a working udelay() function is required for many
> drivers that are sensitive to timing, you should probably
> implement that at some point in the future.
Add udelay() implement in code.
>
> This indicates that you allow DMA to certain devices only in the first
> 16MB of memory, like an ISA floppy or parallel port. Do you actually
have
> any devices with this behaviour?
>
No, I had removed it.
Best Regards
Liqin
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