LXR linux/arch/alpha/include/asm/serial.h

   1/*
   2 * include/asm-alpha/serial.h
   3 */
   4
   5
   6/*
   7 * This assumes you have a 1.8432 MHz clock for your UART.
   8 *
   9 * It'd be nice if someone built a serial card with a 24.576 MHz
  10 * clock, since the 16550A is capable of handling a top speed of 1.5
  11 * megabits/second; but this requires the faster clock.
  12 */
  13#define BASE_BAUD ( 1843200 / 16 )
  14
  15/* Standard COM flags (except for COM4, because of the 8514 problem) */
  16#ifdef CONFIG_SERIAL_DETECT_IRQ
  17#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
  18#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
  19#else
  20#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
  21#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
  22#endif
  23
  24#define SERIAL_PORT_DFNS                        \
  25        /* UART CLK   PORT IRQ     FLAGS        */                      \
  26        { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },      /* ttyS0 */     \
  27        { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS },      /* ttyS1 */     \
  28        { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS },      /* ttyS2 */     \
  29        { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS },     /* ttyS3 */
  30