On Wed, 2017-02-22 at 16:33 +0100, Stefan Koch wrote: > > *IMPORTANT* > To use VPE at least CONFIG_MIPS_MT_SMP needs to be disabled within > xrx200/config-default and nosmp added to the kernel command line > Without nosmp within command line the full SMP part must be disabled > > *WARNING* > If SMP and VPE are enabled together you will get strange kernel panics. > Because both, SMP and VPE want to use the second CPU core. > The first commit above that introduces SMP added nosmp to kernel command > line. So no funny kernel panics appear. But the VMMC firmware could not > be loaded. > > So there a different options to recover FXS support: > 1) remove SMP support for xrx200 > 2) Disables CONFIG_MIPS_MT_SMP within kernel default configuration that > conflicts with the VPE kernel configuration options. I have added a > patch as attachment but not tested it without nosmp option and don't > know what happens on a device that uses no VPE/VMMC/FXS. But it recovers > FXS support successfully. > 3) Write a new patch
Surely you can still have have SMP support in the kernel; all you need to do is take the other CPU offline properly before you repurpose it for VPE?
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