1/*
2 *	Serial Device Initialisation for LASI/ASP/WAX/DINO
3 *
4 *	(c) Copyright 2000 The Puffin Group Inc.
5 *	(c) Copyright 2000-2001 Helge Deller <deller@gmx.de>
6 *
7 *	This program is free software; you can redistribute it and/or modify
8 *	it under the terms of the GNU General Public License as published by
9 *      the Free Software Foundation; either version 2 of the License, or
10 *      (at your option) any later version.
11 *
12 */
13
14#include <linux/config.h>
15#include <linux/errno.h>
16#include <linux/init.h>
17#include <linux/signal.h>
18#include <linux/types.h>
19#include <linux/sched.h>
20#include <linux/interrupt.h>
21#include <linux/kernel_stat.h>
22#include <linux/ioport.h>
23#include <linux/timex.h>
24#include <linux/module.h>
25#include <linux/serial.h>
26#include <linux/slab.h>
27
28#include <asm/serial.h>
29#include <asm/io.h>
30#include <asm/hardware.h>
31#include <asm/gsc.h>
32
33#include "busdevice.h"
34
35static void setup_parisc_serial(struct serial_struct *serial,
36		unsigned long address, int irq, int line)
37{
38	memset(serial, 0, sizeof(struct serial_struct));
39
40	/* autoconfig() sets state->type.  This sets info->type */
41	serial->type = PORT_16550A;
42
43	serial->line = line;
44	serial->iomem_base = ioremap(address, 0x8);
45
46	serial->irq = irq;
47	serial->io_type = SERIAL_IO_MEM;	/* define access method */
48	serial->flags = 0;
49	serial->xmit_fifo_size = 16;
50	serial->custom_divisor = 0;
51	serial->baud_base = LASI_BASE_BAUD;
52}
53
54static int __init
55serial_init_chip(struct parisc_device *dev)
56{
57	static int serial_line_nr;
58	unsigned long address;
59
60	struct serial_struct *serial;
61
62	if (!dev->irq) {
63		if (dev->parent->id.hw_type != HPHW_IOA) {
64			printk(KERN_INFO "Serial: device 0x%lx not configured.\n"
65				"Enable support for Wax, Lasi, Asp or Dino.\n", dev->hpa);
66		}
67		return -ENODEV;
68	}
69
70	serial = kmalloc(sizeof(*serial), GFP_KERNEL);
71	if (!serial)
72		return -ENOMEM;
73
74	address = dev->hpa;
75	if (dev->id.sversion != 0x8d) {
76		address += 0x800;
77	}
78
79	setup_parisc_serial(serial, address, dev->irq, serial_line_nr++);
80
81	if (register_serial(serial) < 0) {
82		printk(KERN_WARNING "register_serial returned error\n");
83		kfree(serial);
84		return -ENODEV;
85	}
86
87	return 0;
88}
89
90static struct parisc_device_id serial_tbl[] = {
91	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00075 },
92	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008c },
93	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008d },
94	{ 0 }
95};
96
97/* Hack.  Dino's serial port will get listed first on some machines.
98 * So we register this driver first which knows about Lasi's serial port.
99 * This needs to get fixed properly somehow.
100 */
101static struct parisc_device_id serial1_tbl[] = {
102	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03B, 0x0008C }, /* C1xx/C1xxL */
103	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03C, 0x0008C }, /* B132L */
104	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03D, 0x0008C }, /* B160L */
105	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03E, 0x0008C }, /* B132L+ */
106	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03F, 0x0008C }, /* B180L+ */
107	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x046, 0x0008C }, /* Rocky2 120 */
108	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x047, 0x0008C }, /* Rocky2 150 */
109	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x04E, 0x0008C }, /* Kiji L2 132 */
110	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x056, 0x0008C }, /* Raven+ */
111	{ 0 }
112};
113
114
115MODULE_DEVICE_TABLE(parisc, serial_tbl);
116
117static struct parisc_driver serial1_driver = {
118	name:		"Serial RS232",
119	id_table:	serial1_tbl,
120	probe:		serial_init_chip,
121};
122
123static struct parisc_driver serial_driver = {
124	name:		"Serial RS232",
125	id_table:	serial_tbl,
126	probe:		serial_init_chip,
127};
128
129void __init probe_serial_gsc(void)
130{
131	register_parisc_driver(&serial1_driver);
132	register_parisc_driver(&serial_driver);
133}
134