| 123456789101112131415161718192021222324252627282930 |
- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _ASM_X86_SERIAL_H
- #define _ASM_X86_SERIAL_H
- /*
- * This assumes you have a 1.8432 MHz clock for your UART.
- *
- * It'd be nice if someone built a serial card with a 24.576 MHz
- * clock, since the 16550A is capable of handling a top speed of 1.5
- * megabits/second; but this requires a faster clock.
- */
- #define BASE_BAUD (1843200/16)
- /* Standard COM flags (except for COM4, because of the 8514 problem) */
- #ifdef CONFIG_SERIAL_8250_DETECT_IRQ
- # define STD_COMX_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ)
- # define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | 0 | UPF_AUTO_IRQ)
- #else
- # define STD_COMX_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | 0 )
- # define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | 0 | 0 )
- #endif
- #define SERIAL_PORT_DFNS \
- /* UART CLK PORT IRQ FLAGS */ \
- { .uart = 0, BASE_BAUD, 0x3F8, 4, STD_COMX_FLAGS }, /* ttyS0 */ \
- { .uart = 0, BASE_BAUD, 0x2F8, 3, STD_COMX_FLAGS }, /* ttyS1 */ \
- { .uart = 0, BASE_BAUD, 0x3E8, 4, STD_COMX_FLAGS }, /* ttyS2 */ \
- { .uart = 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */
- #endif /* _ASM_X86_SERIAL_H */
|
