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author | Till Straumann <strauman@slac.stanford.edu> | 2006-06-19 20:51:19 +0000 |
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committer | Till Straumann <strauman@slac.stanford.edu> | 2006-06-19 20:51:19 +0000 |
commit | 06cfd95d98dd93a3b142c73c24a4baea496112e7 (patch) | |
tree | 229fef86790b77b088f9f46765298b9a1da200f9 /c/src/lib/libbsp/powerpc/shared/vme/vmeconfig.c | |
parent | Added address-modifier codes for BLT/MBLT. (diff) | |
download | rtems-06cfd95d98dd93a3b142c73c24a4baea496112e7.tar.bz2 |
Indicate that it's ok to use decoupled cycles to access
on-board memory from VME.
Diffstat (limited to 'c/src/lib/libbsp/powerpc/shared/vme/vmeconfig.c')
-rw-r--r-- | c/src/lib/libbsp/powerpc/shared/vme/vmeconfig.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/c/src/lib/libbsp/powerpc/shared/vme/vmeconfig.c b/c/src/lib/libbsp/powerpc/shared/vme/vmeconfig.c index e951acf51c..c726cbb675 100644 --- a/c/src/lib/libbsp/powerpc/shared/vme/vmeconfig.c +++ b/c/src/lib/libbsp/powerpc/shared/vme/vmeconfig.c @@ -64,10 +64,12 @@ __BSP_default_vme_config(void) 0x00010000); #ifdef _VME_DRAM_OFFSET - /* map our memory to VME */ + /* map our memory to VME giving the driver a hint that it's ordinary memory + * so they can enable decoupled cycles which should give better performance... + */ BSP_VMEInboundPortCfg( 0, - VME_AM_EXT_SUP_DATA, + VME_AM_EXT_SUP_DATA | VME_AM_IS_MEMORY, _VME_DRAM_OFFSET, PCI_DRAM_OFFSET, BSP_mem_size); |