1/* 2 * include/asm-m68k/serial.h 3 * 4 * currently this seems useful only for a Q40, 5 * it's an almost exact copy of ../asm-alpha/serial.h 6 * 7 */ 8 9 10/* 11 * This assumes you have a 1.8432 MHz clock for your UART. 12 * 13 * It'd be nice if someone built a serial card with a 24.576 MHz 14 * clock, since the 16550A is capable of handling a top speed of 1.5 15 * megabits/second; but this requires the faster clock. 16 */ 17#define BASE_BAUD ( 1843200 / 16 ) 18 19/* Standard COM flags (except for COM4, because of the 8514 problem) */ 20#ifdef CONFIG_SERIAL_DETECT_IRQ 21#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ) 22#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ) 23#else 24#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST) 25#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF 26#endif 27 28#define SERIAL_PORT_DFNS \ 29 /* UART CLK PORT IRQ FLAGS */ \ 30 { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \ 31 { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \ 32 { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \ 33 { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */ 34