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1da177e4 LT |
1 | /* |
2 | * include/asm-i386/serial.h | |
3 | */ | |
4 | ||
5 | #include <linux/config.h> | |
6 | ||
7 | /* | |
8 | * This assumes you have a 1.8432 MHz clock for your UART. | |
9 | * | |
10 | * It'd be nice if someone built a serial card with a 24.576 MHz | |
11 | * clock, since the 16550A is capable of handling a top speed of 1.5 | |
12 | * megabits/second; but this requires the faster clock. | |
13 | */ | |
14 | #define BASE_BAUD ( 1843200 / 16 ) | |
15 | ||
16 | /* Standard COM flags (except for COM4, because of the 8514 problem) */ | |
17 | #ifdef CONFIG_SERIAL_DETECT_IRQ | |
18 | #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ) | |
19 | #define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ) | |
20 | #else | |
21 | #define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST) | |
22 | #define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF | |
23 | #endif | |
24 | ||
25 | #ifdef CONFIG_SERIAL_MANY_PORTS | |
26 | #define FOURPORT_FLAGS ASYNC_FOURPORT | |
27 | #define ACCENT_FLAGS 0 | |
28 | #define BOCA_FLAGS 0 | |
29 | #define HUB6_FLAGS 0 | |
30 | #endif | |
31 | ||
32 | #define MCA_COM_FLAGS (STD_COM_FLAGS|ASYNC_BOOT_ONLYMCA) | |
33 | ||
34 | /* | |
35 | * The following define the access methods for the HUB6 card. All | |
36 | * access is through two ports for all 24 possible chips. The card is | |
37 | * selected through the high 2 bits, the port on that card with the | |
38 | * "middle" 3 bits, and the register on that port with the bottom | |
39 | * 3 bits. | |
40 | * | |
41 | * While the access port and interrupt is configurable, the default | |
42 | * port locations are 0x302 for the port control register, and 0x303 | |
43 | * for the data read/write register. Normally, the interrupt is at irq3 | |
44 | * but can be anything from 3 to 7 inclusive. Note that using 3 will | |
45 | * require disabling com2. | |
46 | */ | |
47 | ||
48 | #define C_P(card,port) (((card)<<6|(port)<<3) + 1) | |
49 | ||
50 | #define STD_SERIAL_PORT_DEFNS \ | |
51 | /* UART CLK PORT IRQ FLAGS */ \ | |
52 | { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \ | |
53 | { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \ | |
54 | { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \ | |
55 | { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */ | |
56 | ||
57 | ||
58 | #ifdef CONFIG_SERIAL_MANY_PORTS | |
59 | #define EXTRA_SERIAL_PORT_DEFNS \ | |
60 | { 0, BASE_BAUD, 0x1A0, 9, FOURPORT_FLAGS }, /* ttyS4 */ \ | |
61 | { 0, BASE_BAUD, 0x1A8, 9, FOURPORT_FLAGS }, /* ttyS5 */ \ | |
62 | { 0, BASE_BAUD, 0x1B0, 9, FOURPORT_FLAGS }, /* ttyS6 */ \ | |
63 | { 0, BASE_BAUD, 0x1B8, 9, FOURPORT_FLAGS }, /* ttyS7 */ \ | |
64 | { 0, BASE_BAUD, 0x2A0, 5, FOURPORT_FLAGS }, /* ttyS8 */ \ | |
65 | { 0, BASE_BAUD, 0x2A8, 5, FOURPORT_FLAGS }, /* ttyS9 */ \ | |
66 | { 0, BASE_BAUD, 0x2B0, 5, FOURPORT_FLAGS }, /* ttyS10 */ \ | |
67 | { 0, BASE_BAUD, 0x2B8, 5, FOURPORT_FLAGS }, /* ttyS11 */ \ | |
68 | { 0, BASE_BAUD, 0x330, 4, ACCENT_FLAGS }, /* ttyS12 */ \ | |
69 | { 0, BASE_BAUD, 0x338, 4, ACCENT_FLAGS }, /* ttyS13 */ \ | |
70 | { 0, BASE_BAUD, 0x000, 0, 0 }, /* ttyS14 (spare) */ \ | |
71 | { 0, BASE_BAUD, 0x000, 0, 0 }, /* ttyS15 (spare) */ \ | |
72 | { 0, BASE_BAUD, 0x100, 12, BOCA_FLAGS }, /* ttyS16 */ \ | |
73 | { 0, BASE_BAUD, 0x108, 12, BOCA_FLAGS }, /* ttyS17 */ \ | |
74 | { 0, BASE_BAUD, 0x110, 12, BOCA_FLAGS }, /* ttyS18 */ \ | |
75 | { 0, BASE_BAUD, 0x118, 12, BOCA_FLAGS }, /* ttyS19 */ \ | |
76 | { 0, BASE_BAUD, 0x120, 12, BOCA_FLAGS }, /* ttyS20 */ \ | |
77 | { 0, BASE_BAUD, 0x128, 12, BOCA_FLAGS }, /* ttyS21 */ \ | |
78 | { 0, BASE_BAUD, 0x130, 12, BOCA_FLAGS }, /* ttyS22 */ \ | |
79 | { 0, BASE_BAUD, 0x138, 12, BOCA_FLAGS }, /* ttyS23 */ \ | |
80 | { 0, BASE_BAUD, 0x140, 12, BOCA_FLAGS }, /* ttyS24 */ \ | |
81 | { 0, BASE_BAUD, 0x148, 12, BOCA_FLAGS }, /* ttyS25 */ \ | |
82 | { 0, BASE_BAUD, 0x150, 12, BOCA_FLAGS }, /* ttyS26 */ \ | |
83 | { 0, BASE_BAUD, 0x158, 12, BOCA_FLAGS }, /* ttyS27 */ \ | |
84 | { 0, BASE_BAUD, 0x160, 12, BOCA_FLAGS }, /* ttyS28 */ \ | |
85 | { 0, BASE_BAUD, 0x168, 12, BOCA_FLAGS }, /* ttyS29 */ \ | |
86 | { 0, BASE_BAUD, 0x170, 12, BOCA_FLAGS }, /* ttyS30 */ \ | |
87 | { 0, BASE_BAUD, 0x178, 12, BOCA_FLAGS }, /* ttyS31 */ | |
88 | #else | |
89 | #define EXTRA_SERIAL_PORT_DEFNS | |
90 | #endif | |
91 | ||
92 | /* You can have up to four HUB6's in the system, but I've only | |
93 | * included two cards here for a total of twelve ports. | |
94 | */ | |
95 | #if (defined(CONFIG_HUB6) && defined(CONFIG_SERIAL_MANY_PORTS)) | |
96 | #define HUB6_SERIAL_PORT_DFNS \ | |
97 | { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,0) }, /* ttyS32 */ \ | |
98 | { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,1) }, /* ttyS33 */ \ | |
99 | { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,2) }, /* ttyS34 */ \ | |
100 | { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,3) }, /* ttyS35 */ \ | |
101 | { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,4) }, /* ttyS36 */ \ | |
102 | { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,5) }, /* ttyS37 */ \ | |
103 | { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,0) }, /* ttyS38 */ \ | |
104 | { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,1) }, /* ttyS39 */ \ | |
105 | { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,2) }, /* ttyS40 */ \ | |
106 | { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,3) }, /* ttyS41 */ \ | |
107 | { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,4) }, /* ttyS42 */ \ | |
108 | { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,5) }, /* ttyS43 */ | |
109 | #else | |
110 | #define HUB6_SERIAL_PORT_DFNS | |
111 | #endif | |
112 | ||
113 | #ifdef CONFIG_MCA | |
114 | #define MCA_SERIAL_PORT_DFNS \ | |
115 | { 0, BASE_BAUD, 0x3220, 3, MCA_COM_FLAGS }, \ | |
116 | { 0, BASE_BAUD, 0x3228, 3, MCA_COM_FLAGS }, \ | |
117 | { 0, BASE_BAUD, 0x4220, 3, MCA_COM_FLAGS }, \ | |
118 | { 0, BASE_BAUD, 0x4228, 3, MCA_COM_FLAGS }, \ | |
119 | { 0, BASE_BAUD, 0x5220, 3, MCA_COM_FLAGS }, \ | |
120 | { 0, BASE_BAUD, 0x5228, 3, MCA_COM_FLAGS }, | |
121 | #else | |
122 | #define MCA_SERIAL_PORT_DFNS | |
123 | #endif | |
124 | ||
125 | #define SERIAL_PORT_DFNS \ | |
126 | STD_SERIAL_PORT_DEFNS \ | |
127 | EXTRA_SERIAL_PORT_DEFNS \ | |
128 | HUB6_SERIAL_PORT_DFNS \ | |
129 | MCA_SERIAL_PORT_DFNS | |
130 |