Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Serial Device Initialisation for Lasi/Asp/Wax/Dino | |
3 | * | |
4 | * (c) Copyright Matthew Wilcox <willy@debian.org> 2001-2002 | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/errno.h> | |
13 | #include <linux/init.h> | |
14 | #include <linux/interrupt.h> | |
15 | #include <linux/ioport.h> | |
16 | #include <linux/module.h> | |
17 | #include <linux/serial_core.h> | |
18 | #include <linux/signal.h> | |
19 | #include <linux/slab.h> | |
20 | #include <linux/types.h> | |
21 | ||
22 | #include <asm/hardware.h> | |
23 | #include <asm/parisc-device.h> | |
24 | #include <asm/io.h> | |
1da177e4 LT |
25 | |
26 | #include "8250.h" | |
27 | ||
8b4a483b | 28 | static int __init serial_init_chip(struct parisc_device *dev) |
1da177e4 | 29 | { |
1da177e4 LT |
30 | struct uart_port port; |
31 | unsigned long address; | |
32 | int err; | |
33 | ||
34 | if (!dev->irq) { | |
35 | /* We find some unattached serial ports by walking native | |
36 | * busses. These should be silently ignored. Otherwise, | |
37 | * what we have here is a missing parent device, so tell | |
38 | * the user what they're missing. | |
39 | */ | |
8b4a483b AC |
40 | if (parisc_parent(dev)->id.hw_type != HPHW_IOA) |
41 | printk(KERN_INFO | |
42 | "Serial: device 0x%lx not configured.\n" | |
53f01bba MW |
43 | "Enable support for Wax, Lasi, Asp or Dino.\n", |
44 | dev->hpa.start); | |
1da177e4 LT |
45 | return -ENODEV; |
46 | } | |
47 | ||
53f01bba | 48 | address = dev->hpa.start; |
8b4a483b | 49 | if (dev->id.sversion != 0x8d) |
1da177e4 | 50 | address += 0x800; |
1da177e4 | 51 | |
5076c158 HD |
52 | memset(&port, 0, sizeof(port)); |
53 | port.iotype = UPIO_MEM; | |
136ce40e MW |
54 | /* 7.272727MHz on Lasi. Assumed the same for Dino, Wax and Timi. */ |
55 | port.uartclk = 7272727; | |
5076c158 HD |
56 | port.mapbase = address; |
57 | port.membase = ioremap_nocache(address, 16); | |
58 | port.irq = dev->irq; | |
59 | port.flags = UPF_BOOT_AUTOCONF; | |
60 | port.dev = &dev->dev; | |
1da177e4 LT |
61 | |
62 | err = serial8250_register_port(&port); | |
63 | if (err < 0) { | |
8b4a483b AC |
64 | printk(KERN_WARNING |
65 | "serial8250_register_port returned error %d\n", err); | |
d9964d5c | 66 | iounmap(port.membase); |
1da177e4 LT |
67 | return err; |
68 | } | |
8b4a483b | 69 | |
1da177e4 LT |
70 | return 0; |
71 | } | |
72 | ||
73 | static struct parisc_device_id serial_tbl[] = { | |
74 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00075 }, | |
75 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008c }, | |
76 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008d }, | |
77 | { 0 } | |
78 | }; | |
79 | ||
80 | /* Hack. Some machines have SERIAL_0 attached to Lasi and SERIAL_1 | |
81 | * attached to Dino. Unfortunately, Dino appears before Lasi in the device | |
82 | * tree. To ensure that ttyS0 == SERIAL_0, we register two drivers; one | |
83 | * which only knows about Lasi and then a second which will find all the | |
84 | * other serial ports. HPUX ignores this problem. | |
85 | */ | |
86 | static struct parisc_device_id lasi_tbl[] = { | |
87 | { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03B, 0x0008C }, /* C1xx/C1xxL */ | |
88 | { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03C, 0x0008C }, /* B132L */ | |
89 | { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03D, 0x0008C }, /* B160L */ | |
90 | { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03E, 0x0008C }, /* B132L+ */ | |
91 | { HPHW_FIO, HVERSION_REV_ANY_ID, 0x03F, 0x0008C }, /* B180L+ */ | |
92 | { HPHW_FIO, HVERSION_REV_ANY_ID, 0x046, 0x0008C }, /* Rocky2 120 */ | |
93 | { HPHW_FIO, HVERSION_REV_ANY_ID, 0x047, 0x0008C }, /* Rocky2 150 */ | |
94 | { HPHW_FIO, HVERSION_REV_ANY_ID, 0x04E, 0x0008C }, /* Kiji L2 132 */ | |
95 | { HPHW_FIO, HVERSION_REV_ANY_ID, 0x056, 0x0008C }, /* Raven+ */ | |
96 | { 0 } | |
97 | }; | |
98 | ||
99 | ||
100 | MODULE_DEVICE_TABLE(parisc, serial_tbl); | |
101 | ||
102 | static struct parisc_driver lasi_driver = { | |
103 | .name = "serial_1", | |
104 | .id_table = lasi_tbl, | |
105 | .probe = serial_init_chip, | |
106 | }; | |
107 | ||
108 | static struct parisc_driver serial_driver = { | |
109 | .name = "serial", | |
110 | .id_table = serial_tbl, | |
111 | .probe = serial_init_chip, | |
112 | }; | |
113 | ||
114 | int __init probe_serial_gsc(void) | |
115 | { | |
116 | register_parisc_driver(&lasi_driver); | |
117 | register_parisc_driver(&serial_driver); | |
118 | return 0; | |
119 | } | |
120 | ||
121 | module_init(probe_serial_gsc); | |
920519c1 AB |
122 | |
123 | MODULE_LICENSE("GPL"); |