serial.h

来自「内核linux2.4.20,可跟rtlinux3.2打补丁 组成实时linux系」· C头文件 代码 · 共 34 行

/*
 * linux/include/asm-arm/arch-ebsa110/serial.h
 *
 * Copyright (c) 1996,1997,1998 Russell King.
 *
 * Changelog:
 *  15-10-1996	RMK	Created
 */
#ifndef __ASM_ARCH_SERIAL_H
#define __ASM_ARCH_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)

#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)

#define RS_TABLE_SIZE 2

     /* UART CLK        PORT  IRQ     FLAGS        */
#define STD_SERIAL_PORT_DEFNS \
	{ 0, BASE_BAUD, 0x3F8,  4, STD_COM_FLAGS },	/* ttyS0 */	\
	{ 0, BASE_BAUD, 0x2F8,  3, STD_COM_FLAGS },	/* ttyS1 */

#define EXTRA_SERIAL_PORT_DEFNS

#endif