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
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2000 AG Electronics Ltd.
* Copyright (C) 2003-2004 Linux Networx
* Copyright (C) 2004 Tyan
*
* 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 "lpc47b397.h"
static void pnp_enter_conf_state(device_t dev)
{
outb(0x55, dev->path.pnp.port);
}
static void pnp_exit_conf_state(device_t dev)
{
outb(0xaa, dev->path.pnp.port);
}
static void pnp_write_index(u16 port, u8 reg, u8 value)
{
outb(reg, port);
outb(value, port + 1);
}
static u8 pnp_read_index(u16 port, u8 reg)
{
outb(reg, port);
return inb(port + 1);
}
static void enable_hwm_smbus(device_t dev)
{
/* Enable SensorBus register access. */
u8 reg8;
reg8 = pnp_read_config(dev, 0xf0);
reg8 |= (1 << 1);
pnp_write_config(dev, 0xf0, reg8);
}
static void lpc47b397_init(device_t dev)
{
struct superio_smsc_lpc47b397_config *conf = dev->chip_info;
struct resource *res0;
if (!dev->enabled)
return;
switch(dev->path.pnp.device) {
case LPC47B397_SP1:
res0 = find_resource(dev, PNP_IDX_IO0);
init_uart8250(res0->base, &conf->com1);
break;
case LPC47B397_SP2:
res0 = find_resource(dev, PNP_IDX_IO0);
init_uart8250(res0->base, &conf->com2);
break;
case LPC47B397_KBC:
pc_keyboard_init(&conf->keyboard);
break;
}
}
static void lpc47b397_pnp_set_resources(device_t dev)
{
pnp_enter_conf_state(dev);
pnp_set_resources(dev);
/* dump_pnp_device(dev); */
pnp_exit_conf_state(dev);
}
static void lpc47b397_pnp_enable_resources(device_t dev)
{
pnp_enter_conf_state(dev);
pnp_enable_resources(dev);
switch(dev->path.pnp.device) {
case LPC47B397_HWM:
printk(BIOS_DEBUG, "LPC47B397 SensorBus register access enabled\n");
pnp_set_logical_device(dev);
enable_hwm_smbus(dev);
break;
}
/* dump_pnp_device(dev); */
pnp_exit_conf_state(dev);
}
static void lpc47b397_pnp_enable(device_t dev)
{
pnp_enter_conf_state(dev);
pnp_set_logical_device(dev);
pnp_set_enable(dev, (dev->enabled) ? 1 : 0);
pnp_exit_conf_state(dev);
}
static struct device_operations ops = {
.read_resources = pnp_read_resources,
.set_resources = lpc47b397_pnp_set_resources,
.enable_resources = lpc47b397_pnp_enable_resources,
.enable = lpc47b397_pnp_enable,
.init = lpc47b397_init,
};
#define HWM_INDEX 0
#define HWM_DATA 1
#define SB_INDEX 0x0b
#define SB_DATA0 0x0c
#define SB_DATA1 0x0d
#define SB_DATA2 0x0e
#define SB_DATA3 0x0f
static int lsmbus_read_byte(device_t dev, u8 address)
{
unsigned int device;
struct resource *res;
int result;
device = dev->path.i2c.device;
res = find_resource(get_pbus_smbus(dev)->dev, PNP_IDX_IO0);
pnp_write_index(res->base + HWM_INDEX, 0, device); /* Why 0? */
/* We only read it one byte one time. */
result = pnp_read_index(res->base + SB_INDEX, address);
return result;
}
static int lsmbus_write_byte(device_t dev, u8 address, u8 val)
{
unsigned int device;
struct resource *res;
device = dev->path.i2c.device;
res = find_resource(get_pbus_smbus(dev)->dev, PNP_IDX_IO0);
pnp_write_index(res->base+HWM_INDEX, 0, device); /* Why 0? */
/* We only write it one byte one time. */
pnp_write_index(res->base+SB_INDEX, address, val);
return 0;
}
static struct smbus_bus_operations lops_smbus_bus = {
/* .recv_byte = lsmbus_recv_byte, */
/* .send_byte = lsmbus_send_byte, */
.read_byte = lsmbus_read_byte,
.write_byte = lsmbus_write_byte,
};
static struct device_operations ops_hwm = {
.read_resources = pnp_read_resources,
.set_resources = lpc47b397_pnp_set_resources,
.enable_resources = lpc47b397_pnp_enable_resources,
.enable = lpc47b397_pnp_enable,
.init = lpc47b397_init,
.scan_bus = scan_static_bus,
.ops_smbus_bus = &lops_smbus_bus,
};
static struct pnp_info pnp_dev_info[] = {
{ &ops, LPC47B397_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x07f8, 0}, },
{ &ops, LPC47B397_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x07f8, 0}, },
{ &ops, LPC47B397_SP1, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, LPC47B397_SP2, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
{ &ops, LPC47B397_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1, {0x07ff, 0}, {0x07ff, 4}, },
{ &ops_hwm, LPC47B397_HWM, PNP_IO0, {0x07f0, 0}, },
{ &ops, LPC47B397_RT, PNP_IO0, {0x0780, 0}, },
};
static void enable_dev(struct device *dev)
{
pnp_enable_devices(dev, &pnp_ops,
ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
}
struct chip_operations superio_smsc_lpc47b397_ops = {
CHIP_NAME("SMSC LPC47B397 Super I/O")
.enable_dev = enable_dev,
};
|
