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
26 #define RS_TABLE_SIZE 4
29 #ifdef CONFIG_SERIAL_MANY_PORTS
30 #define FOURPORT_FLAGS ASYNC_FOURPORT
31 #define ACCENT_FLAGS 0
37 * The following define the access methods for the HUB6 card. All
38 * access is through two ports for all 24 possible chips. The card is
39 * selected through the high 2 bits, the port on that card with the
40 * "middle" 3 bits, and the register on that port with the bottom
43 * While the access port and interrupt is configurable, the default
44 * port locations are 0x302 for the port control register, and 0x303
45 * for the data read/write register. Normally, the interrupt is at irq3
46 * but can be anything from 3 to 7 inclusive. Note that using 3 will
47 * require disabling com2.
50 #define C_P(card,port) (((card)<<6|(port)<<3) + 1)
52 #define STD_SERIAL_PORT_DEFNS \
53 /* UART CLK PORT IRQ FLAGS */ \
54 { 0, BASE_BAUD, 0x3F8, 4, ASYNC_BOOT_AUTOCONF }, /* ttyS0 */ \
55 { 0, BASE_BAUD, 0x2F8, 3, ASYNC_BOOT_AUTOCONF }, /* ttyS1 */ \
56 { 0, BASE_BAUD, 0x3E8, 4, ASYNC_BOOT_AUTOCONF }, /* ttyS2 */ \
57 { 0, BASE_BAUD, 0x2E8, 3, ASYNC_BOOT_AUTOCONF }, /* ttyS3 */
60 #ifdef CONFIG_SERIAL_MANY_PORTS
61 #define EXTRA_SERIAL_PORT_DEFNS \
62 { 0, BASE_BAUD, 0x1A0, 9, FOURPORT_FLAGS }, /* ttyS4 */ \
63 { 0, BASE_BAUD, 0x1A8, 9, FOURPORT_FLAGS }, /* ttyS5 */ \
64 { 0, BASE_BAUD, 0x1B0, 9, FOURPORT_FLAGS }, /* ttyS6 */ \
65 { 0, BASE_BAUD, 0x1B8, 9, FOURPORT_FLAGS }, /* ttyS7 */ \
66 { 0, BASE_BAUD, 0x2A0, 5, FOURPORT_FLAGS }, /* ttyS8 */ \
67 { 0, BASE_BAUD, 0x2A8, 5, FOURPORT_FLAGS }, /* ttyS9 */ \
68 { 0, BASE_BAUD, 0x2B0, 5, FOURPORT_FLAGS }, /* ttyS10 */ \
69 { 0, BASE_BAUD, 0x2B8, 5, FOURPORT_FLAGS }, /* ttyS11 */ \
70 { 0, BASE_BAUD, 0x330, 4, ACCENT_FLAGS }, /* ttyS12 */ \
71 { 0, BASE_BAUD, 0x338, 4, ACCENT_FLAGS }, /* ttyS13 */ \
72 { 0, BASE_BAUD, 0x000, 0, 0 }, /* ttyS14 (spare) */ \
73 { 0, BASE_BAUD, 0x000, 0, 0 }, /* ttyS15 (spare) */ \
74 { 0, BASE_BAUD, 0x100, 12, BOCA_FLAGS }, /* ttyS16 */ \
75 { 0, BASE_BAUD, 0x108, 12, BOCA_FLAGS }, /* ttyS17 */ \
76 { 0, BASE_BAUD, 0x110, 12, BOCA_FLAGS }, /* ttyS18 */ \
77 { 0, BASE_BAUD, 0x118, 12, BOCA_FLAGS }, /* ttyS19 */ \
78 { 0, BASE_BAUD, 0x120, 12, BOCA_FLAGS }, /* ttyS20 */ \
79 { 0, BASE_BAUD, 0x128, 12, BOCA_FLAGS }, /* ttyS21 */ \
80 { 0, BASE_BAUD, 0x130, 12, BOCA_FLAGS }, /* ttyS22 */ \
81 { 0, BASE_BAUD, 0x138, 12, BOCA_FLAGS }, /* ttyS23 */ \
82 { 0, BASE_BAUD, 0x140, 12, BOCA_FLAGS }, /* ttyS24 */ \
83 { 0, BASE_BAUD, 0x148, 12, BOCA_FLAGS }, /* ttyS25 */ \
84 { 0, BASE_BAUD, 0x150, 12, BOCA_FLAGS }, /* ttyS26 */ \
85 { 0, BASE_BAUD, 0x158, 12, BOCA_FLAGS }, /* ttyS27 */ \
86 { 0, BASE_BAUD, 0x160, 12, BOCA_FLAGS }, /* ttyS28 */ \
87 { 0, BASE_BAUD, 0x168, 12, BOCA_FLAGS }, /* ttyS29 */ \
88 { 0, BASE_BAUD, 0x170, 12, BOCA_FLAGS }, /* ttyS30 */ \
89 { 0, BASE_BAUD, 0x178, 12, BOCA_FLAGS }, /* ttyS31 */
91 #define EXTRA_SERIAL_PORT_DEFNS
94 /* You can have up to four HUB6's in the system, but I've only
95 * included two cards here for a total of twelve ports.
97 #if (defined(CONFIG_HUB6) && defined(CONFIG_SERIAL_MANY_PORTS))
98 #define HUB6_SERIAL_PORT_DFNS \
99 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,0) }, /* ttyS32 */ \
100 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,1) }, /* ttyS33 */ \
101 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,2) }, /* ttyS34 */ \
102 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,3) }, /* ttyS35 */ \
103 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,4) }, /* ttyS36 */ \
104 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,5) }, /* ttyS37 */ \
105 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,0) }, /* ttyS38 */ \
106 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,1) }, /* ttyS39 */ \
107 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,2) }, /* ttyS40 */ \
108 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,3) }, /* ttyS41 */ \
109 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,4) }, /* ttyS42 */ \
110 { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,5) }, /* ttyS43 */
112 #define HUB6_SERIAL_PORT_DFNS
115 #define SERIAL_PORT_DFNS \
116 STD_SERIAL_PORT_DEFNS \
117 EXTRA_SERIAL_PORT_DEFNS \
118 HUB6_SERIAL_PORT_DFNS