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Blackfin: bf561: use DMA for Core B L1 regions

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The L1 regions of Core B are not directly accessible from Core A, so we
need to use DMA to get at them.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2010-06-04 16:15:38 -04:00
parent b14fff8dce
commit bbf4fbb6cc
1 changed files with 9 additions and 1 deletions
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10
arch/blackfin/include/asm/blackfin_local.h
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@ -75,7 +75,15 @@ extern void blackfin_dcache_flush_invalidate_range(const void *, const void *);
* regions can only be accessed via DMA, so if the address in question is in * regions can only be accessed via DMA, so if the address in question is in
* that region, make sure we attempt to DMA indirectly. * that region, make sure we attempt to DMA indirectly.
*/ */
# define addr_bfin_on_chip_mem(addr) (((unsigned long)(addr) & 0xFFF00000) == 0xFFA00000) # ifdef __ADSPBF561__
/* Core B regions all need dma from Core A */
# define addr_bfin_on_chip_mem(addr) \
((((unsigned long)(addr) & 0xFFF00000) == 0xFFA00000) || \
(((unsigned long)(addr) & 0xFFC00000) == 0xFF400000))
# else
# define addr_bfin_on_chip_mem(addr) \
(((unsigned long)(addr) & 0xFFF00000) == 0xFFA00000)
# endif
# include <asm/system.h> # include <asm/system.h>