doc/README.vxworks

   1 From VxWorks 6.9+ (not include 6.9), VxWorks starts adopting device tree as its hardware
   2 decription mechansim (for PowerPC and ARM), thus requiring boot interface changes.
   3 This section will describe the new interface.
   4
   5 For PowerPC, the calling convention of the new VxWorks entry point conforms to the ePAPR standard,
   6 which is shown below (see ePAPR for more details):
   7
   8     void (*kernel_entry)(fdt_addr,
   9               0, 0, EPAPR_MAGIC, boot_IMA, 0, 0)
  10
  11 For ARM, the calling convention is show below:
  12
  13     void (*kernel_entry)(void *fdt_addr)
  14
  15 When booting new VxWorks kernel (uImage format), the parameters passed to bootm is like below:
  16
  17     bootm <kernel image address> - <device tree address>
  18
  19 The do_bootvx command still works as it was for older VxWorks kernels.