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Indicate that it's ok to use decoupled cycles to access

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on-board memory from VME.
This commit is contained in:
Till Straumann
2006-06-19 20:51:19 +00:00
parent 9a30162d5a
commit 06cfd95d98
2 changed files with 10 additions and 2 deletions
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6
c/src/lib/libbsp/powerpc/ChangeLog
View File

@@ -1,3 +1,9 @@
2006-06-19 Till Straumann <strauman@slac.stanford.edu>
* shared/vme/vmeconfig.c: Indicate that it's ok to
use decoupled cycles to access on-board memory from
VME.
2006-06-19 Till Straumann <strauman@slac.stanford.edu>
* shared/vme/vme_universe.c: Only set/access the

6
c/src/lib/libbsp/powerpc/shared/vme/vmeconfig.c
View File

@@ -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);