From: "Andrea Pellegrini" <andreapellegrini@tele2.it>
To: <ecos-devel@sources.redhat.com>
Subject: PXA and DMA: Cache control
Date: Tue, 08 Feb 2005 17:33:00 -0000 [thread overview]
Message-ID: <008c01c50e04$36f1ee10$0702a8c0@olimpo> (raw)
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
reply other threads:[~2005-02-08 17:33 UTC|newest]
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