[PATCH] CM-x2xx NAND flash support

[Wolfgang Mües]

Am Dienstag, 11. Juli 2006 09:48 schrieb Mike Rapoport:
> Thomas Gleixner wrote:
> >On Thu, 2006-07-06 at 14:48 +0200, Mike Rapoport wrote:
> >>This patch provides MTD support for NAND flash devices on CM-x2xx
> >> modules.
> >>+#define DRAIN_WB() \
> >>+       do { \
> >>+               unsigned char dummy; \
> >>+               asm volatile ("mcr p15, 0, r0, c7, c10, 4":::"r0"); \
> >>+               dummy=*((unsigned char*)UNCACHED_ADDR); \
> >>+       } while(0);
> >
> >stray semicolon ----^
> >
> >I bet xscale has this functionality somewhere as a macro / inline already
>
> I found none. Even md() on xscale will not drain write buffer.

dmac_clean_range() from asm/cacheflush.h is what you want.

regards

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Wolfgang Muees                    Vor den Grashoefen 1
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