1 /* SPDX-License-Identifier: GPL-2.0 */ 1
2 #ifndef _ASM_X86_SERIAL_H
3 #define _ASM_X86_SERIAL_H
4
5 /*
6 * This assumes you have a 1.8432 MHz clock fo
7 *
8 * It'd be nice if someone built a serial card
9 * clock, since the 16550A is capable of handl
10 * megabits/second; but this requires a faster
11 */
12 #define BASE_BAUD (1843200/16)
13
14 /* Standard COM flags (except for COM4, becaus
15 #ifdef CONFIG_SERIAL_8250_DETECT_IRQ
16 # define STD_COMX_FLAGS (UPF_BOOT_AUTOCONF |
17 # define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF |
18 #else
19 # define STD_COMX_FLAGS (UPF_BOOT_AUTOCONF |
20 # define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF |
21 #endif
22
23 #define SERIAL_PORT_DFNS
24 /* UART CLK PORT
25 { .uart = 0, BASE_BAUD, 0x3F8,
26 { .uart = 0, BASE_BAUD, 0x2F8,
27 { .uart = 0, BASE_BAUD, 0x3E8,
28 { .uart = 0, BASE_BAUD, 0x2E8,
29
30 #endif /* _ASM_X86_SERIAL_H */
31
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