1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
/*
* superio.c: RAM driver for SMSC LPC47M10X2 Super I/O chip
*
* Copyright 2000 AG Electronics Ltd.
* Copyright 2003-2004 Linux Networx
* Copyright 2004 Tyan
* Copyright (C) 2005 Digital Design Corporation
* Copyright (C) Ron Minnich, LANL
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <arch/io.h>
#include <device/device.h>
#include <device/pnp.h>
#include <console/console.h>
#include <device/smbus.h>
#include <string.h>
#include <bitops.h>
#include <uart8250.h>
#include <pc80/keyboard.h>
#include <stdlib.h>
#include "chip.h"
#include "lpc47m10x.h"
/* Forward declarations */
static void enable_dev(device_t dev);
static void lpc47m10x_pnp_set_resources(device_t dev);
static void lpc47m10x_pnp_enable_resources(device_t dev);
static void lpc47m10x_pnp_enable(device_t dev);
static void lpc47m10x_init(device_t dev);
static void pnp_enter_conf_state(device_t dev);
static void pnp_exit_conf_state(device_t dev);
//static void dump_pnp_device(device_t dev);
struct chip_operations superio_smsc_lpc47m10x_ops = {
CHIP_NAME("SMSC LPC47M10x Super I/O")
.enable_dev = enable_dev
};
static struct device_operations ops = {
.read_resources = pnp_read_resources,
.set_resources = lpc47m10x_pnp_set_resources,
.enable_resources = lpc47m10x_pnp_enable_resources,
.enable = lpc47m10x_pnp_enable,
.init = lpc47m10x_init,
};
static struct pnp_info pnp_dev_info[] = {
{ &ops, LPC47M10X2_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },
{ &ops, LPC47M10X2_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },
{ &ops, LPC47M10X2_SP1, PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
{ &ops, LPC47M10X2_SP2, PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
{ &ops, LPC47M10X2_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1, { 0x7ff, 0 }, { 0x7ff, 0x4}, },
};
/**********************************************************************************/
/* PUBLIC INTERFACE */
/**********************************************************************************/
/*
* Function: enable_dev
* Parameters: dev - pointer to structure describing a Super I/O device
* Return Value: None
* Description: Create device structures and allocate resources to devices
* specified in the pnp_dev_info array (above).
*/
static void enable_dev(device_t dev)
{
pnp_enable_devices(dev, &pnp_ops,
ARRAY_SIZE(pnp_dev_info),
pnp_dev_info);
}
/*
* Function: lpc47m10x_pnp_set_resources
* Parameters: dev - pointer to structure describing a Super I/O device
* Return Value: None
* Description: Configure the specified Super I/O device with the resources
* (I/O space, etc.) that have been allocated for it.
*/
static void lpc47m10x_pnp_set_resources(device_t dev)
{
pnp_enter_conf_state(dev);
pnp_set_resources(dev);
pnp_exit_conf_state(dev);
}
static void lpc47m10x_pnp_enable_resources(device_t dev)
{
pnp_enter_conf_state(dev);
pnp_enable_resources(dev);
pnp_exit_conf_state(dev);
}
static void lpc47m10x_pnp_enable(device_t dev)
{
pnp_enter_conf_state(dev);
pnp_set_logical_device(dev);
if(dev->enabled) {
pnp_set_enable(dev, 1);
}
else {
pnp_set_enable(dev, 0);
}
pnp_exit_conf_state(dev);
}
/*
* Function: lpc47m10x_init
* Parameters: dev - pointer to structure describing a Super I/O device
* Return Value: None
* Description: Initialize the specified Super I/O device.
* Devices other than COM ports and the keyboard controller are
* ignored. For COM ports, we configure the baud rate.
*/
static void lpc47m10x_init(device_t dev)
{
struct superio_smsc_lpc47m10x_config *conf = dev->chip_info;
struct resource *res0, *res1;
if (!dev->enabled)
return;
switch(dev->path.pnp.device) {
case LPC47M10X2_SP1:
res0 = find_resource(dev, PNP_IDX_IO0);
init_uart8250(res0->base, &conf->com1);
break;
case LPC47M10X2_SP2:
res0 = find_resource(dev, PNP_IDX_IO0);
init_uart8250(res0->base, &conf->com2);
break;
case LPC47M10X2_KBC:
res0 = find_resource(dev, PNP_IDX_IO0);
res1 = find_resource(dev, PNP_IDX_IO1);
pc_keyboard_init(&conf->keyboard);
break;
}
}
/**********************************************************************************/
/* PRIVATE FUNCTIONS */
/**********************************************************************************/
/*
* Function: pnp_enter_conf_state
* Parameters: dev - pointer to structure describing a Super I/O device
* Return Value: None
* Description: Enable access to the LPC47M10X2's configuration registers.
*/
static void pnp_enter_conf_state(device_t dev)
{
outb(0x55, dev->path.pnp.port);
}
/*
* Function: pnp_exit_conf_state
* Parameters: dev - pointer to structure describing a Super I/O device
* Return Value: None
* Description: Disable access to the LPC47M10X2's configuration registers.
*/
static void pnp_exit_conf_state(device_t dev)
{
outb(0xaa, dev->path.pnp.port);
}
#if 0
/*
* Function: dump_pnp_device
* Parameters: dev - pointer to structure describing a Super I/O device
* Return Value: None
* Description: Print the values of all of the LPC47M10X2's configuration registers.
* NOTE: The LPC47M10X2 must be in configuration mode when this
* function is called.
*/
static void dump_pnp_device(device_t dev)
{
int register_index;
print_debug("\n");
for(register_index = 0; register_index <= LPC47M10X2_MAX_CONFIG_REGISTER; register_index++) {
uint8_t register_value;
if ((register_index & 0x0f) == 0) {
print_debug_hex8(register_index);
print_debug_char(':');
}
/* Skip over 'register' that would cause exit from configuration mode */
if (register_index == 0xaa)
register_value = 0xaa;
else
register_value = pnp_read_config(dev, register_index);
print_debug_char(' ');
print_debug_hex8(register_value);
if ((register_index & 0x0f) == 0x0f) {
print_debug("\n");
}
}
print_debug("\n");
}
#endif
|
