serial.h 1.0 KB

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  1. #ifndef _ASM_X86_SERIAL_H
  2. #define _ASM_X86_SERIAL_H
  3. /*
  4. * This assumes you have a 1.8432 MHz clock for your UART.
  5. *
  6. * It'd be nice if someone built a serial card with a 24.576 MHz
  7. * clock, since the 16550A is capable of handling a top speed of 1.5
  8. * megabits/second; but this requires the faster clock.
  9. */
  10. #define BASE_BAUD ( 1843200 / 16 )
  11. /* Standard COM flags (except for COM4, because of the 8514 problem) */
  12. #ifdef CONFIG_SERIAL_DETECT_IRQ
  13. #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
  14. #define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
  15. #else
  16. #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
  17. #define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
  18. #endif
  19. #define SERIAL_PORT_DFNS \
  20. /* UART CLK PORT IRQ FLAGS */ \
  21. { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \
  22. { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \
  23. { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \
  24. { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */
  25. #endif /* _ASM_X86_SERIAL_H */