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 --- arch/blackfin/include/asm/blackfin_local.h | 10 +++++++++- 1 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/arch/blackfin/include/asm/blackfin_local.h b/arch/blackfin/include/asm/blackfin_local.h index 3fd34b3..48f793a 100644 --- a/arch/blackfin/include/asm/blackfin_local.h +++ b/arch/blackfin/include/asm/blackfin_local.h @@ -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 * 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>