sched: speed up context-switches a bit
[pv_ops_mirror.git] / include / asm-sh / serial.h
blob21f6d330f18955fb800453dbf721132bd2c52c87
1 /*
2 * include/asm-sh/serial.h
4 * Configuration details for 8250, 16450, 16550, etc. serial ports
5 */
7 #ifndef _ASM_SERIAL_H
8 #define _ASM_SERIAL_H
10 #include <linux/kernel.h>
13 * This assumes you have a 1.8432 MHz clock for your UART.
15 * It'd be nice if someone built a serial card with a 24.576 MHz
16 * clock, since the 16550A is capable of handling a top speed of 1.5
17 * megabits/second; but this requires the faster clock.
19 #define BASE_BAUD ( 1843200 / 16 )
21 #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
23 #ifdef CONFIG_HD64465
24 #include <asm/hd64465.h>
26 #define SERIAL_PORT_DFNS \
27 /* UART CLK PORT IRQ FLAGS */ \
28 { 0, BASE_BAUD, 0x3F8, HD64465_IRQ_UART, STD_COM_FLAGS } /* ttyS0 */
30 #else
32 #define SERIAL_PORT_DFNS
34 #endif
36 #endif /* _ASM_SERIAL_H */