cpu_setup_44x.S 833 B

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  1. /*
  2. * This file contains low level CPU setup functions.
  3. * Valentine Barshak <vbarshak@ru.mvista.com>
  4. * MontaVista Software, Inc (c) 2007
  5. *
  6. * Based on cpu_setup_6xx code by
  7. * Benjamin Herrenschmidt <benh@kernel.crashing.org>
  8. *
  9. * This program is free software; you can redistribute it and/or
  10. * modify it under the terms of the GNU General Public License
  11. * as published by the Free Software Foundation; either version
  12. * 2 of the License, or (at your option) any later version.
  13. *
  14. */
  15. #include <asm/processor.h>
  16. #include <asm/cputable.h>
  17. #include <asm/ppc_asm.h>
  18. _GLOBAL(__setup_cpu_440ep)
  19. b __init_fpu_44x
  20. _GLOBAL(__setup_cpu_440epx)
  21. b __init_fpu_44x
  22. /* enable APU between CPU and FPU */
  23. _GLOBAL(__init_fpu_44x)
  24. mfspr r3,SPRN_CCR0
  25. /* Clear DAPUIB flag in CCR0 */
  26. rlwinm r3,r3,0,12,10
  27. mtspr SPRN_CCR0,r3
  28. isync
  29. blr