RTEMS-mvme5500 BSP update
feng1 at bnl.gov
Thu Mar 19 13:35:43 CDT 2009
Joel Sherrill wrote:
> Any chance of getting a patch to apply to the
> RTEMS source base?
The attached mvme5500-patch.tar.gz contains two files :
I tried to file a PR, but it seems that there are some problems
with the bug tracking system : bugzilla. I could not even view
It was OK last week, though.
> --joel sherrill
> Kate Feng wrote:
>> The stable version of RTEMS-mvme5500 BSP is posted at
>> The "RTEMS-mvme5500 BSP v126.96.36.199", was tested
>> under RTEMS 4.9.1, and the "RTEMS-mvme5500 BSP v188.8.131.52"
>> was tested under RTEMS 4.8.0..
>> The highlights of the change are :
>> 1) Use the GT_GPP_Value register (0xf104) instead of the
>> GT_GPP_Interrupt_Cause register (0xf108) to monitor the cause
>> of the level sensitive interrupts. See irq/BSP_irq.c.
>> This is an unique solution which solves part of the bugs in
>> the BSP, which especially affects the 1GHz network driver.
>> 2) There is no change in the 100 MHz network driver. Thus,
>> its performance stays the same. Some bugs were fixed in the
>> 1GHz network drivers (e.g. if_wm.c).
>> 3)Enable "PCI Read Agressive Prefetch", "PCI Read Line Agressive
>> and "PCI Read Multiple Agressive Prefetch" to improve the performance of
>> the PCI based applications (e.g. 1GHz network driver). See
>> However, performance is driven by applications.
>> There is no known bug at this point. Any feedback which is related to
>> the RTEMS-mvme5500 BSP would be highly appreciated.
>> Hope this helps,
>> rtems-users mailing list
>> rtems-users at rtems.com
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