1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _ASM_X86_SERIAL_H
 3#define _ASM_X86_SERIAL_H
 4
 5/*
 6 * This assumes you have a 1.8432 MHz clock for your UART.
 7 *
 8 * It'd be nice if someone built a serial card with a 24.576 MHz
 9 * clock, since the 16550A is capable of handling a top speed of 1.5
10 * megabits/second; but this requires a faster clock.
11 */
12#define BASE_BAUD (1843200/16)
13
14/* Standard COM flags (except for COM4, because of the 8514 problem) */
15#ifdef CONFIG_SERIAL_8250_DETECT_IRQ
16# define STD_COMX_FLAGS	(UPF_BOOT_AUTOCONF |	UPF_SKIP_TEST	| UPF_AUTO_IRQ)
17# define STD_COM4_FLAGS	(UPF_BOOT_AUTOCONF |	0		| UPF_AUTO_IRQ)
18#else
19# define STD_COMX_FLAGS	(UPF_BOOT_AUTOCONF |	UPF_SKIP_TEST	| 0		)
20# define STD_COM4_FLAGS	(UPF_BOOT_AUTOCONF |	0		| 0		)
21#endif
22
23#define SERIAL_PORT_DFNS								\
24	/* UART		CLK		PORT	IRQ	FLAGS			    */	\
25	{ .uart = 0,	BASE_BAUD,	0x3F8,	4,	STD_COMX_FLAGS	}, /* ttyS0 */	\
26	{ .uart = 0,	BASE_BAUD,	0x2F8,	3,	STD_COMX_FLAGS	}, /* ttyS1 */	\
27	{ .uart = 0,	BASE_BAUD,	0x3E8,	4,	STD_COMX_FLAGS	}, /* ttyS2 */	\
28	{ .uart = 0,	BASE_BAUD,	0x2E8,	3,	STD_COM4_FLAGS	}, /* ttyS3 */
29
30#endif /* _ASM_X86_SERIAL_H */

 
 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 the 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_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
16#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
17#else
18#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
19#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
20#endif
21
22#define SERIAL_PORT_DFNS			\
23	/* UART CLK   PORT IRQ     FLAGS        */			\
24	{ 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },	/* ttyS0 */	\
25	{ 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS },	/* ttyS1 */	\
26	{ 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS },	/* ttyS2 */	\
27	{ 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS },	/* ttyS3 */
28
29#endif /* _ASM_X86_SERIAL_H */