Linux v2.6.15-rc6
[pohmelfs.git] / include / asm-ppc / pc_serial.h
blob8f994f9f8857e70c2a6530247a668d12ca8f8f19
1 /*
2 * include/asm-ppc/pc_serial.h
4 * This is basically a copy of include/asm-i386/serial.h.
5 * It is used on platforms which have an ISA bus and thus are likely
6 * to have PC-style serial ports at the legacy I/O port addresses.
7 * It also includes the definitions for the fourport, accent, boca
8 * and hub6 multiport serial cards, although I have never heard of
9 * anyone using any of those on a PPC platform. -- paulus
12 #include <linux/config.h>
15 * This assumes you have a 1.8432 MHz clock for your UART.
17 * It'd be nice if someone built a serial card with a 24.576 MHz
18 * clock, since the 16550A is capable of handling a top speed of 1.5
19 * megabits/second; but this requires the faster clock.
21 #define BASE_BAUD ( 1843200 / 16 )
23 #ifdef CONFIG_SERIAL_MANY_PORTS
24 #define RS_TABLE_SIZE 64
25 #else
26 #define RS_TABLE_SIZE 4
27 #endif
29 /* Standard COM flags (except for COM4, because of the 8514 problem) */
30 #ifdef CONFIG_SERIAL_DETECT_IRQ
31 #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
32 #define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
33 #else
34 #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
35 #define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
36 #endif
38 #define SERIAL_PORT_DFNS \
39 /* UART CLK PORT IRQ FLAGS */ \
40 { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \
41 { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \
42 { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \
43 { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */