Linux kernel mirror (for testing)
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linux
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 1999 by Ralf Baechle
7 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
8 */
9#ifndef _ASM_SERIAL_H
10#define _ASM_SERIAL_H
11
12
13/*
14 * This assumes you have a 1.8432 MHz clock for your UART.
15 *
16 * It'd be nice if someone built a serial card with a 24.576 MHz
17 * clock, since the 16550A is capable of handling a top speed of 1.5
18 * megabits/second; but this requires the faster clock.
19 */
20#define BASE_BAUD (1843200 / 16)
21
22/* Standard COM flags (except for COM4, because of the 8514 problem) */
23#ifdef CONFIG_SERIAL_DETECT_IRQ
24#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
25#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
26#else
27#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
28#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
29#endif
30
31#ifdef CONFIG_MACH_JAZZ
32#include <asm/jazz.h>
33
34#ifndef CONFIG_OLIVETTI_M700
35 /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know
36 exactly which ones ... XXX */
37#define JAZZ_BASE_BAUD ( 8000000 / 16 ) /* ( 3072000 / 16) */
38#else
39/* but the M700 isn't such a strange beast */
40#define JAZZ_BASE_BAUD BASE_BAUD
41#endif
42
43#define _JAZZ_SERIAL_INIT(int, base) \
44 { .baud_base = JAZZ_BASE_BAUD, .irq = int, .flags = STD_COM_FLAGS, \
45 .iomem_base = (u8 *) base, .iomem_reg_shift = 0, \
46 .io_type = SERIAL_IO_MEM }
47#define JAZZ_SERIAL_PORT_DEFNS \
48 _JAZZ_SERIAL_INIT(JAZZ_SERIAL1_IRQ, JAZZ_SERIAL1_BASE), \
49 _JAZZ_SERIAL_INIT(JAZZ_SERIAL2_IRQ, JAZZ_SERIAL2_BASE),
50#else
51#define JAZZ_SERIAL_PORT_DEFNS
52#endif
53
54/*
55 * Galileo EV64120 evaluation board
56 */
57#ifdef CONFIG_MIPS_EV64120
58#include <mach-gt64120.h>
59#define EV64120_SERIAL_PORT_DEFNS \
60 { .baud_base = EV64120_BASE_BAUD, .irq = EV64120_UART_IRQ, \
61 .flags = STD_COM_FLAGS, \
62 .iomem_base = EV64120_UART0_REGS_BASE, .iomem_reg_shift = 2, \
63 .io_type = SERIAL_IO_MEM }, \
64 { .baud_base = EV64120_BASE_BAUD, .irq = EV64120_UART_IRQ, \
65 .flags = STD_COM_FLAGS, \
66 .iomem_base = EV64120_UART1_REGS_BASE, .iomem_reg_shift = 2, \
67 .io_type = SERIAL_IO_MEM },
68#else
69#define EV64120_SERIAL_PORT_DEFNS
70#endif
71
72#ifdef CONFIG_HAVE_STD_PC_SERIAL_PORT
73#define STD_SERIAL_PORT_DEFNS \
74 /* UART CLK PORT IRQ FLAGS */ \
75 { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \
76 { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \
77 { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \
78 { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */
79
80#else /* CONFIG_HAVE_STD_PC_SERIAL_PORTS */
81#define STD_SERIAL_PORT_DEFNS
82#endif /* CONFIG_HAVE_STD_PC_SERIAL_PORTS */
83
84#ifdef CONFIG_MOMENCO_OCELOT_3
85#define OCELOT_3_BASE_BAUD ( 20000000 / 16 )
86#define OCELOT_3_SERIAL_IRQ 6
87#define OCELOT_3_SERIAL_BASE (signed)0xfd000020
88
89#define _OCELOT_3_SERIAL_INIT(int, base) \
90 { .baud_base = OCELOT_3_BASE_BAUD, irq: int, \
91 .flags = STD_COM_FLAGS, \
92 .iomem_base = (u8 *) base, iomem_reg_shift: 2, \
93 io_type: SERIAL_IO_MEM }
94
95#define MOMENCO_OCELOT_3_SERIAL_PORT_DEFNS \
96 _OCELOT_3_SERIAL_INIT(OCELOT_3_SERIAL_IRQ, OCELOT_3_SERIAL_BASE)
97#else
98#define MOMENCO_OCELOT_3_SERIAL_PORT_DEFNS
99#endif
100
101#ifdef CONFIG_MOMENCO_OCELOT
102/* Ordinary NS16552 duart with a 20MHz crystal. */
103#define OCELOT_BASE_BAUD ( 20000000 / 16 )
104
105#define OCELOT_SERIAL1_IRQ 4
106#define OCELOT_SERIAL1_BASE 0xe0001020
107
108#define _OCELOT_SERIAL_INIT(int, base) \
109 { .baud_base = OCELOT_BASE_BAUD, .irq = int, .flags = STD_COM_FLAGS, \
110 .iomem_base = (u8 *) base, .iomem_reg_shift = 2, \
111 .io_type = SERIAL_IO_MEM }
112#define MOMENCO_OCELOT_SERIAL_PORT_DEFNS \
113 _OCELOT_SERIAL_INIT(OCELOT_SERIAL1_IRQ, OCELOT_SERIAL1_BASE)
114#else
115#define MOMENCO_OCELOT_SERIAL_PORT_DEFNS
116#endif
117
118#ifdef CONFIG_MOMENCO_OCELOT_C
119/* Ordinary NS16552 duart with a 20MHz crystal. */
120#define OCELOT_C_BASE_BAUD ( 20000000 / 16 )
121
122#define OCELOT_C_SERIAL1_IRQ 80
123#define OCELOT_C_SERIAL1_BASE 0xfd000020
124
125#define OCELOT_C_SERIAL2_IRQ 81
126#define OCELOT_C_SERIAL2_BASE 0xfd000000
127
128#define _OCELOT_C_SERIAL_INIT(int, base) \
129 { .baud_base = OCELOT_C_BASE_BAUD, \
130 .irq = (int), \
131 .flags = STD_COM_FLAGS, \
132 .iomem_base = (u8 *) base, \
133 .iomem_reg_shift = 2, \
134 .io_type = SERIAL_IO_MEM \
135 }
136#define MOMENCO_OCELOT_C_SERIAL_PORT_DEFNS \
137 _OCELOT_C_SERIAL_INIT(OCELOT_C_SERIAL1_IRQ, OCELOT_C_SERIAL1_BASE), \
138 _OCELOT_C_SERIAL_INIT(OCELOT_C_SERIAL2_IRQ, OCELOT_C_SERIAL2_BASE)
139#else
140#define MOMENCO_OCELOT_C_SERIAL_PORT_DEFNS
141#endif
142
143#ifdef CONFIG_DDB5477
144#include <asm/ddb5xxx/ddb5477.h>
145#define DDB5477_SERIAL_PORT_DEFNS \
146 { .baud_base = BASE_BAUD, .irq = VRC5477_IRQ_UART0, \
147 .flags = STD_COM_FLAGS, .iomem_base = (u8*)0xbfa04200, \
148 .iomem_reg_shift = 3, .io_type = SERIAL_IO_MEM}, \
149 { .baud_base = BASE_BAUD, .irq = VRC5477_IRQ_UART1, \
150 .flags = STD_COM_FLAGS, .iomem_base = (u8*)0xbfa04240, \
151 .iomem_reg_shift = 3, .io_type = SERIAL_IO_MEM},
152#else
153#define DDB5477_SERIAL_PORT_DEFNS
154#endif
155
156#ifdef CONFIG_SGI_IP32
157/*
158 * The IP32 (SGI O2) has standard serial ports (UART 16550A) mapped in memory
159 * They are initialized in ip32_setup
160 */
161#define IP32_SERIAL_PORT_DEFNS \
162 {},{},
163#else
164#define IP32_SERIAL_PORT_DEFNS
165#endif /* CONFIG_SGI_IP32 */
166
167#define SERIAL_PORT_DFNS \
168 DDB5477_SERIAL_PORT_DEFNS \
169 EV64120_SERIAL_PORT_DEFNS \
170 IP32_SERIAL_PORT_DEFNS \
171 JAZZ_SERIAL_PORT_DEFNS \
172 STD_SERIAL_PORT_DEFNS \
173 MOMENCO_OCELOT_C_SERIAL_PORT_DEFNS \
174 MOMENCO_OCELOT_SERIAL_PORT_DEFNS \
175 MOMENCO_OCELOT_3_SERIAL_PORT_DEFNS
176
177#endif /* _ASM_SERIAL_H */