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