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/* SPDX-License-Identifier: GPL-2.0 */
/*
* include/asm-m68k/serial.h
*
* currently this seems useful only for a Q40,
* it's an almost exact copy of ../asm-alpha/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 the 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_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ)
#define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | UPF_AUTO_IRQ)
#else
#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST)
#define STD_COM4_FLAGS UPF_BOOT_AUTOCONF
#endif
#ifdef CONFIG_ISA
#define SERIAL_PORT_DFNS \
/* UART CLK PORT IRQ FLAGS */ \
{ 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \
{ 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \
{ 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \
{ 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */
#endif