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
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2005 Li-Ta Lo <ollie@lanl.gov>
* Copyright (C) 2005 Tyan
* (Written by Yinghai Lu <yhlu@tyan.com> for Tyan)
* Copyright (C) 2005 Ronald G. Minnich <rminnich@gmail.com>
* Copyright (C) 2005-2007 Stefan Reinauer <stepan@openbios.org>
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <string.h>
#include <cbfs.h>
struct rom_header * pci_rom_probe(struct device *dev)
{
unsigned long rom_address = 0;
struct rom_header *rom_header;
struct pci_data *rom_data;
void *v;
/* if it's in FLASH, then it's as if dev->on_mainboard was true */
v = cbfs_load_optionrom(dev->vendor, dev->device, NULL);
printk_debug("In cbfs, rom address for %s = %p\n",
dev_path(dev), v);
if (v) {
dev->rom_address = (u32)v;
dev->on_mainboard = 1;
}
if (dev->on_mainboard) {
// in case some device PCI_ROM_ADDRESS can not be set or readonly
rom_address = dev->rom_address;
printk_debug("On mainboard, rom address for %s = %lx\n",
dev_path(dev), rom_address);
} else {
rom_address = pci_read_config32(dev, PCI_ROM_ADDRESS);
printk_debug("On card, rom address for %s = %lx\n",
dev_path(dev), rom_address);
}
if (rom_address == 0x00000000 || rom_address == 0xffffffff) {
return NULL;
}
if(!dev->on_mainboard) {
/* enable expansion ROM address decoding */
pci_write_config32(dev, PCI_ROM_ADDRESS,
rom_address|PCI_ROM_ADDRESS_ENABLE);
}
rom_header = (struct rom_header *)rom_address;
printk_spew("PCI Expansion ROM, signature 0x%04x, INIT size 0x%04x, data ptr 0x%04x\n",
le32_to_cpu(rom_header->signature),
rom_header->size * 512, le32_to_cpu(rom_header->data));
if (le32_to_cpu(rom_header->signature) != PCI_ROM_HDR) {
printk_err("Incorrect Expansion ROM Header Signature %04x\n",
le32_to_cpu(rom_header->signature));
return NULL;
}
rom_data = (struct pci_data *) ((void *)rom_header + le32_to_cpu(rom_header->data));
printk_spew("PCI ROM Image, Vendor %04x, Device %04x,\n",
rom_data->vendor, rom_data->device);
if (dev->vendor != rom_data->vendor || dev->device != rom_data->device) {
printk_err("Device or Vendor ID mismatch Vendor %04x, Device %04x\n",
rom_data->vendor, rom_data->device);
return NULL;
}
printk_spew("PCI ROM Image, Class Code %04x%02x, Code Type %02x\n",
rom_data->class_hi, rom_data->class_lo,
rom_data->type);
if (dev->class != ((rom_data->class_hi << 8) | rom_data->class_lo)) {
printk_debug("Class Code mismatch ROM %08x, dev %08x\n",
(rom_data->class_hi << 8) | rom_data->class_lo, dev->class);
//return NULL;
}
return rom_header;
}
static void *pci_ram_image_start = (void *)PCI_RAM_IMAGE_START;
struct rom_header *pci_rom_load(struct device *dev, struct rom_header *rom_header)
{
struct pci_data * rom_data;
unsigned int rom_size;
unsigned int image_size=0;
do {
rom_header = (struct rom_header *)((void *) rom_header + image_size); // get next image
rom_data = (struct pci_data *)((void *) rom_header + le32_to_cpu(rom_header->data));
image_size = le32_to_cpu(rom_data->ilen) * 512;
} while ((rom_data->type!=0) && (rom_data->indicator!=0)); // make sure we got x86 version
if (rom_data->type != 0)
return NULL;
rom_size = rom_header->size * 512;
if (PCI_CLASS_DISPLAY_VGA == rom_data->class_hi) {
#if CONFIG_CONSOLE_VGA == 1 && CONFIG_CONSOLE_VGA_MULTI == 0
extern device_t vga_pri; // the primary vga device, defined in device.c
if (dev != vga_pri) return NULL; // only one VGA supported
#endif
if ((void *)PCI_VGA_RAM_IMAGE_START != rom_header) {
printk_debug("copying VGA ROM Image from %p to 0x%x, 0x%x bytes\n",
rom_header, PCI_VGA_RAM_IMAGE_START, rom_size);
memcpy((void *)PCI_VGA_RAM_IMAGE_START, rom_header, rom_size);
}
return (struct rom_header *) (PCI_VGA_RAM_IMAGE_START);
}
printk_debug("copying non-VGA ROM Image from %p to %p, 0x%x bytes\n",
rom_header, pci_ram_image_start, rom_size);
memcpy(pci_ram_image_start, rom_header, rom_size);
pci_ram_image_start += rom_size;
return (struct rom_header *) (pci_ram_image_start-rom_size);
}
|
