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
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 Advanced Micro Devices, Inc.
*
* 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.
*/
#include <device/pnp.h>
#include <superio/conf_mode.h>
#include <stdlib.h>
#include "nct5104d.h"
#include "chip.h"
static void set_irq_trigger_type(struct device *dev, bool trig_level)
{
u8 reg10, reg11, reg26;
//Before accessing CR10 OR CR11 Bit 4 in CR26 must be set to 1
reg26 = pnp_read_config(dev, GLOBAL_OPTION_CR26);
reg26 |= CR26_LOCK_REG;
pnp_write_config(dev, GLOBAL_OPTION_CR26, reg26);
switch (dev->path.pnp.device) {
//SP1 (UARTA) IRQ type selection (1:level,0:edge) is controlled by CR 10, bit 5
case NCT5104D_SP1:
reg10 = pnp_read_config(dev, IRQ_TYPE_SEL_CR10);
if (trig_level)
reg10 |= (1 << 5);
else
reg10 &= ~(1 << 5);
pnp_write_config(dev, IRQ_TYPE_SEL_CR10, reg10);
break;
//SP2 (UARTB) IRQ type selection (1:level,0:edge) is controlled by CR 10, bit 4
case NCT5104D_SP2:
reg10 = pnp_read_config(dev, IRQ_TYPE_SEL_CR10);
if (trig_level)
reg10 |= (1 << 4);
else
reg10 &= ~(1 << 4);
pnp_write_config(dev, IRQ_TYPE_SEL_CR10, reg10);
break;
//SP3 (UARTC) IRQ type selection (1:level,0:edge) is controlled by CR 11, bit 5
case NCT5104D_SP3:
reg11 = pnp_read_config(dev,IRQ_TYPE_SEL_CR11);
if (trig_level)
reg11 |= (1 << 5);
else
reg11 &= ~(1 << 5);
pnp_write_config(dev, IRQ_TYPE_SEL_CR11, reg11);
break;
//SP4 (UARTD) IRQ type selection (1:level,0:edge) is controlled by CR 11, bit 4
case NCT5104D_SP4:
reg11 = pnp_read_config(dev,IRQ_TYPE_SEL_CR11);
if (trig_level)
reg11 |= (1 << 4);
else
reg11 &= ~(1 << 4);
pnp_write_config(dev, IRQ_TYPE_SEL_CR11, reg11);
break;
default:
break;
}
//Clear access control register
reg26 = pnp_read_config(dev, GLOBAL_OPTION_CR26);
reg26 &= ~CR26_LOCK_REG;
pnp_write_config(dev, GLOBAL_OPTION_CR26, reg26);
}
static void route_pins_to_uart(struct device *dev, bool to_uart)
{
u8 reg;
reg = pnp_read_config(dev, 0x1c);
switch (dev->path.pnp.device) {
case NCT5104D_SP3:
case NCT5104D_GPIO0:
/* Route pins 33 - 40. */
if (to_uart)
reg |= (1 << 3);
else
reg &= ~(1 << 3);
break;
case NCT5104D_SP4:
case NCT5104D_GPIO1:
/* Route pins 41 - 48. */
if (to_uart)
reg |= (1 << 2);
else
reg &= ~(1 << 2);
break;
default:
break;
}
pnp_write_config(dev, 0x1c, reg);
}
static void nct5104d_init(struct device *dev)
{
struct superio_nuvoton_nct5104d_config *conf = dev->chip_info;
if (!dev->enabled)
return;
pnp_enter_conf_mode(dev);
switch (dev->path.pnp.device) {
case NCT5104D_SP1:
case NCT5104D_SP2:
set_irq_trigger_type(dev, conf->irq_trigger_type != 0);
break;
case NCT5104D_SP3:
case NCT5104D_SP4:
route_pins_to_uart(dev, true);
set_irq_trigger_type(dev, conf->irq_trigger_type != 0);
break;
case NCT5104D_GPIO0:
case NCT5104D_GPIO1:
route_pins_to_uart(dev, false);
break;
default:
break;
}
pnp_exit_conf_mode(dev);
}
static struct device_operations ops = {
.read_resources = pnp_read_resources,
.set_resources = pnp_set_resources,
.enable_resources = pnp_enable_resources,
.enable = pnp_alt_enable,
.init = nct5104d_init,
.ops_pnp_mode = &pnp_conf_mode_8787_aa,
};
static struct pnp_info pnp_dev_info[] = {
{ NULL, NCT5104D_FDC, PNP_IO0 | PNP_IRQ0, 0x07f8, },
{ NULL, NCT5104D_SP1, PNP_IO0 | PNP_IRQ0, 0x07f8, },
{ NULL, NCT5104D_SP2, PNP_IO0 | PNP_IRQ0, 0x07f8, },
{ NULL, NCT5104D_SP3, PNP_IO0 | PNP_IRQ0, 0x07f8, },
{ NULL, NCT5104D_SP4, PNP_IO0 | PNP_IRQ0, 0x07f8, },
{ NULL, NCT5104D_GPIO_WDT},
{ NULL, NCT5104D_GPIO_PP_OD},
{ NULL, NCT5104D_GPIO0},
{ NULL, NCT5104D_GPIO1},
{ NULL, NCT5104D_GPIO6},
{ NULL, NCT5104D_PORT80},
};
static void enable_dev(struct device *dev)
{
pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
}
struct chip_operations superio_nuvoton_nct5104d_ops = {
CHIP_NAME("Nuvoton NCT5104D Super I/O")
.enable_dev = enable_dev,
};
|
