Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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_8250_DETECT_IRQ
15# define STD_COMX_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ)
16# define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | 0 | UPF_AUTO_IRQ)
17#else
18# define STD_COMX_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | 0 )
19# define STD_COM4_FLAGS (UPF_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 */