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
|
/*
* 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)
{
struct rom_header *rom_header;
struct pci_data *rom_data;
/* If it's in FLASH, then don't check device for ROM. */
rom_header = cbfs_load_optionrom(dev->vendor, dev->device, NULL);
if (rom_header) {
printk(BIOS_DEBUG, "In cbfs, rom address for %s = %p\n",
dev_path(dev), rom_header);
} else {
unsigned long rom_address;
rom_address = pci_read_config32(dev, PCI_ROM_ADDRESS);
if (rom_address == 0x00000000 || rom_address == 0xffffffff) {
#if defined(CONFIG_BOARD_EMULATION_QEMU_X86) \
&& CONFIG_BOARD_EMULATION_QEMU_X86
if ((dev->class >> 8) == PCI_CLASS_DISPLAY_VGA)
rom_address = 0xc0000;
else
#endif
return NULL;
} else {
/* enable expansion ROM address decoding */
pci_write_config32(dev, PCI_ROM_ADDRESS,
rom_address|PCI_ROM_ADDRESS_ENABLE);
}
printk(BIOS_DEBUG, "On card, rom address for %s = %lx\n",
dev_path(dev), rom_address);
rom_header = (struct rom_header *)rom_address;
}
printk(BIOS_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(BIOS_ERR, "Incorrect Expansion ROM Header Signature %04x\n",
le32_to_cpu(rom_header->signature));
return NULL;
}
rom_data = (((void *)rom_header) + le32_to_cpu(rom_header->data));
printk(BIOS_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(BIOS_ERR, "ID mismatch: Vendor ID %04x, Device ID %04x\n",
rom_data->vendor, rom_data->device);
return NULL;
}
printk(BIOS_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(BIOS_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;
// We check to see if the device thinks it is a VGA device not
// whether the ROM image is for a VGA device because some
// devices have a mismatch between the hardware and the ROM
if (PCI_CLASS_DISPLAY_VGA == (dev->class >> 8)) {
#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(BIOS_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(BIOS_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);
}
|
