/* 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 [31mCONFIG_SERIAL_8250_DETECT_IRQ[0m #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 [31mCONFIG_ISA[0m #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 |