1 #ifndef _ASM_X86_SERIAL_H 2 #define _ASM_X86_SERIAL_H 3 4 /* 5 * This assumes you have a 1.8432 MHz clock for your UART. 6 * 7 * It'd be nice if someone built a serial card with a 24.576 MHz 8 * clock, since the 16550A is capable of handling a top speed of 1.5 9 * megabits/second; but this requires a faster clock. 10 */ 11 #define BASE_BAUD (1843200/16) 12 13 /* Standard COM flags (except for COM4, because of the 8514 problem) */ 14 #ifdef CONFIG_SERIAL_DETECT_IRQ 15 # define STD_COMX_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ) 16 # define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | 0 | ASYNC_AUTO_IRQ) 17 #else 18 # define STD_COMX_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | 0 ) 19 # define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | 0 | 0 ) 20 #endif 21 22 #define SERIAL_PORT_DFNS \ 23 /* UART CLK PORT IRQ FLAGS */ \ 24 { .uart = 0, BASE_BAUD, 0x3F8, 4, STD_COMX_FLAGS }, /* ttyS0 */ \ 25 { .uart = 0, BASE_BAUD, 0x2F8, 3, STD_COMX_FLAGS }, /* ttyS1 */ \ 26 { .uart = 0, BASE_BAUD, 0x3E8, 4, STD_COMX_FLAGS }, /* ttyS2 */ \ 27 { .uart = 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */ 28 29 #endif /* _ASM_X86_SERIAL_H */ 30