serial.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:1k
- /*
- * linux/include/asm-arm/arch-tbox/serial.h
- *
- * Copyright (c) 1996 Russell King.
- * Copyright (c) 1998 Phil Blundell
- *
- * Changelog:
- * 15-10-1996 RMK Created
- * 09-06-1998 PJB tbox version
- */
- #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 RS_TABLE_SIZE 2
- #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
- /* UART CLK PORT IRQ FLAGS */
- #define STD_SERIAL_PORT_DEFNS
- { 0, BASE_BAUD, 0xffff4000 >> 2, 6, STD_COM_FLAGS }, /* ttyS0 */
- { 0, BASE_BAUD, 0xffff5000 >> 2, 7, STD_COM_FLAGS }, /* ttyS1 */
- #define EXTRA_SERIAL_PORT_DEFNS
- #endif