eenurkka opened a new pull request, #6535:
URL: https://github.com/apache/incubator-nuttx/pull/6535

   Starting the rptun with the autostart flag set will cause significant
   delays at the boot, as it will wait for the master to be up. U-boot/linux
   combination may take more than 10 seconds to boot to the point where the
   rpmsg bus is initialized.
   
   For now, the user needs to initialize the rptun separately, for example,
   by issuing the following command:
   
     rptun start /dev/rptun/mpfs-ihc
   
   This command will also block if started before the rpmsg bus master is up.
   
   Signed-off-by: Eero Nurkkala <eero.nurkk...@offcode.fi>
   
   ## Summary
   
   Work around delays that are caused by waiting for the rpmsg bus master.
   
   ## Impact
   
   ## Testing
   
   Icicle Polarfire board with HSS bootloader and NuttX on hart2, uboot/linux 
on harts 3 and 4.
   


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