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kernel/linux-rt-4.4.41/arch/ia64/include/asm/serial.h 446 Bytes
5113f6f70   김현기   kernel add
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  /*
   * Derived from the i386 version.
   */
  
  /*
   * This assumes you have a 1.8432 MHz clock for your UART.
   *
   * It'd be nice if someone built a serial card with a 24.576 MHz
   * clock, since the 16550A is capable of handling a top speed of 1.5
   * megabits/second; but this requires the faster clock.
   */
  #define BASE_BAUD ( 1843200 / 16 )
  
  /*
   * All legacy serial ports should be enumerated via ACPI namespace, so
   * we need not list them here.
   */