* PXA and DMA: Cache control
@ 2005-02-08 17:33 Andrea Pellegrini
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From: Andrea Pellegrini @ 2005-02-08 17:33 UTC (permalink / raw)
To: ecos-devel
Hi guys!
I'm working for a driver for my AC97 peripheral in a board provided with a
Xscale PXA255.
I use DMA in descriptor mode and all works well when I debug but it doesn't
work in when it runs. Of course there's a problem about cache.
I tryed to disable it with the commands:
HAL_DCACHE_SYNC();
hal_delay_us(100000);
HAL_DCACHE_DISABLE();
but nothing seems working.
Nobody knows how to resolv my problem.
Thank's
Andrea
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