blob: 3fe29f8b01948aa5493906175914a14aef6d6e3e [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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#include <linux/config.h>
10
11/*
12 * This assumes you have a 1.8432 MHz clock for your UART.
13 *
14 * It'd be nice if someone built a serial card with a 24.576 MHz
15 * clock, since the 16550A is capable of handling a top speed of 1.5
16 * megabits/second; but this requires the faster clock.
17 */
18#define BASE_BAUD ( 1843200 / 16 )
19
20/* Standard COM flags (except for COM4, because of the 8514 problem) */
21#ifdef CONFIG_SERIAL_DETECT_IRQ
22#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
23#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
24#else
25#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
26#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
27#endif
28
Russell King026d02a2005-06-29 18:45:19 +010029#define SERIAL_PORT_DFNS \
Linus Torvalds1da177e2005-04-16 15:20:36 -070030 /* UART CLK PORT IRQ FLAGS */ \
31 { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \
32 { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \
33 { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \
34 { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */