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
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 Advanced Micro Devices, Inc.
* Copyright (C) 2014 Sage Electronic Engineering, LLC
*
* 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; version 2 of the License.
*
* 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.
*/
#include <console/console.h>
#include <device/pci.h>
#include <device/pci_def.h>
#include <arch/ioapic.h>
#include "lpc.h"
#include <arch/io.h>
#include <cbmem.h>
void lpc_read_resources(device_t dev)
{
struct resource *res;
printk(BIOS_DEBUG, "SB800 - Lpc.c - lpc_read_resources - Start.\n");
/* Get the normal pci resources of this device */
pci_dev_read_resources(dev); /* We got one for APIC, or one more for TRAP */
/* Add an extra subtractive resource for both memory and I/O. */
res = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0));
res->base = 0;
res->size = 0x1000;
res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE |
IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
res = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0));
res->base = 0xff800000;
res->size = 0x00800000; /* 8 MB for flash */
res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE |
IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
/* Add a memory resource for the SPI BAR. */
fixed_mem_resource(dev, 2, SPI_BASE_ADDRESS / 1024, 1, IORESOURCE_SUBTRACTIVE);
res = new_resource(dev, 3);
res->base = IO_APIC_ADDR;
res->size = 0x00001000;
res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
compact_resources(dev);
printk(BIOS_DEBUG, "SB800 - Lpc.c - lpc_read_resources - End.\n");
}
void lpc_set_resources(struct device *dev)
{
struct resource *res;
printk(BIOS_DEBUG, "SB800 - Lpc.c - lpc_set_resources - Start.\n");
/* Special case. SPI Base Address. The SpiRomEnable should STAY set. */
res = find_resource(dev, 2);
pci_write_config32(dev, SPIROM_BASE_ADDRESS_REGISTER, res->base | SPI_ROM_ENABLE);
pci_dev_set_resources(dev);
printk(BIOS_DEBUG, "SB800 - Lpc.c - lpc_set_resources - End.\n");
}
/**
* @brief Enable resources for children devices
*
* @param dev the device whose children's resources are to be enabled
*
*/
void lpc_enable_childrens_resources(device_t dev)
{
struct bus *link;
u32 reg, reg_x;
int var_num = 0;
u16 reg_var[3];
printk(BIOS_DEBUG, "SB800 - Lpc.c - lpc_enable_childrens_resources - Start.\n");
reg = pci_read_config32(dev, 0x44);
reg_x = pci_read_config32(dev, 0x48);
for (link = dev->link_list; link; link = link->next) {
device_t child;
for (child = link->children; child;
child = child->sibling) {
if (child->enabled
&& (child->path.type == DEVICE_PATH_PNP)) {
struct resource *res;
for (res = child->resource_list; res; res = res->next) {
u32 base, end; /* don't need long long */
if (!(res->flags & IORESOURCE_IO))
continue;
base = res->base;
end = resource_end(res);
/*
printk(BIOS_DEBUG, "sb800 lpc decode:%s, base=0x%08x, end=0x%08x\n",
dev_path(child), base, end);
*/
switch (base) {
case 0x60: /* KB */
case 0x64: /* MS */
reg |= (1 << 29);
break;
case 0x3f8: /* COM1 */
reg |= (1 << 6);
break;
case 0x2f8: /* COM2 */
reg |= (1 << 7);
break;
case 0x378: /* Parallel 1 */
reg |= (1 << 0);
break;
case 0x3f0: /* FD0 */
reg |= (1 << 26);
break;
case 0x220: /* Audio 0 */
reg |= (1 << 8);
break;
case 0x300: /* Midi 0 */
reg |= (1 << 18);
break;
case 0x400:
reg_x |= (1 << 16);
break;
case 0x480:
reg_x |= (1 << 17);
break;
case 0x500:
reg_x |= (1 << 18);
break;
case 0x580:
reg_x |= (1 << 19);
break;
case 0x4700:
reg_x |= (1 << 22);
break;
case 0xfd60:
reg_x |= (1 << 23);
break;
default:
if (var_num >= 3)
continue; /* only 3 var ; compact them ? */
switch (var_num) {
case 0:
reg_x |= (1 << 2);
break;
case 1:
reg_x |= (1 << 24);
break;
case 2:
reg_x |= (1 << 25);
break;
}
reg_var[var_num++] =
base & 0xffff;
}
}
}
}
}
pci_write_config32(dev, 0x44, reg);
pci_write_config32(dev, 0x48, reg_x);
/* Set WideIO for as many IOs found (fall through is on purpose) */
switch (var_num) {
case 2:
pci_write_config16(dev, 0x90, reg_var[2]);
case 1:
pci_write_config16(dev, 0x66, reg_var[1]);
case 0:
//pci_write_config16(dev, 0x64, reg_var[0]); //cause filo can not find sata
break;
}
printk(BIOS_DEBUG, "SB800 - Lpc.c - lpc_enable_childrens_resources - End.\n");
}
|
