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SubjectRe: [PATCH 06/27] score: create head files delay.h device.h div64.h dma-mapping.h dma.h
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Arnd Bergmann <arnd@arndb.de> 写于 2009-06-10 01:18:20:

> On Tuesday 09 June 2009, liqin.chen@sunplusct.com 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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