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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * include/asm-i386/serial.h
3 */
4
Linus Torvalds1da177e2005-04-16 15:20:36 -07005
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
Russell King026d02a2005-06-29 18:45:19 +010024#define SERIAL_PORT_DFNS \
Linus Torvalds1da177e2005-04-16 15:20:36 -070025 /* 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 */