serial.h 1.1 KB

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  1. /*
  2. * OpenRISC Linux
  3. *
  4. * Linux architectural port borrowing liberally from similar works of
  5. * others. All original copyrights apply as per the original source
  6. * declaration.
  7. *
  8. * OpenRISC implementation:
  9. * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
  10. * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
  11. * et al.
  12. *
  13. * This program is free software; you can redistribute it and/or modify
  14. * it under the terms of the GNU General Public License as published by
  15. * the Free Software Foundation; either version 2 of the License, or
  16. * (at your option) any later version.
  17. */
  18. #ifndef __ASM_OPENRISC_SERIAL_H
  19. #define __ASM_OPENRISC_SERIAL_H
  20. #ifdef __KERNEL__
  21. #include <asm/cpuinfo.h>
  22. /* There's a generic version of this file, but it assumes a 1.8MHz UART clk...
  23. * this, on the other hand, assumes the UART clock is tied to the system
  24. * clock... 8250_early.c (early 8250 serial console) actually uses this, so
  25. * it needs to be correct to get the early console working.
  26. */
  27. #define BASE_BAUD (cpuinfo.clock_frequency/16)
  28. #endif /* __KERNEL__ */
  29. #endif /* __ASM_OPENRISC_SERIAL_H */