disable DCache on RTEMS SMP

[Stéphane Rubini]

Hi,

For the purposes of an experiment, we want to disable the data caches 
for an RTEMS SMP 5.3 running on Zedboard (Xilinx Zynq7000 SoC, Dual-core 
Cortex-A9).

We use the rtems_cache_disable_data() function.Doing this crashes the 
system (more precisely the system has an unexpected and unpredictable 
behavior...).

Are there any known issues (other than performance...) with this 
operation, or configuration commands to apply that enable this?

Thank a lot

Regards

Stéphane

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