1 #include <console/console.h>
2 #include <device/device.h>
3 #include <device/pci.h>
4 #include <device/pci_ids.h>
5 #include <device/pci_ops.h>
7 struct rom_header * pci_rom_probe(struct device *dev)
9 unsigned long rom_address;
10 struct rom_header *rom_header;
11 struct pci_data *rom_data;
13 rom_address = pci_read_config32(dev, PCI_ROM_ADDRESS);
15 if (rom_address == 0x00000000 || rom_address == 0xffffffff) {
19 printk_debug("%s, rom address for %s = %x\n",
20 __func__, dev_path(dev), rom_address);
22 /* enable expansion ROM address decoding */
23 pci_write_config32(dev, PCI_ROM_ADDRESS, rom_address|PCI_ROM_ADDRESS_ENABLE);
25 rom_header = rom_address;
26 printk_spew("%s, PCI Expansion ROM, signature 0x%04x, \n\t"
27 "INIT size 0x%04x, data ptr 0x%04x\n",
28 __func__, le32_to_cpu(rom_header->signature),
29 rom_header->size * 512, le32_to_cpu(rom_header->data));
30 if (le32_to_cpu(rom_header->signature) != PCI_ROM_HDR) {
31 printk_err("%s, Incorrect Expansion ROM Header Signature %04x\n",
32 __func__, le32_to_cpu(rom_header->signature));
36 rom_data = (unsigned char *) rom_header + le32_to_cpu(rom_header->data);
37 printk_spew("%s, PCI ROM Image, Vendor %04x, Device %04x,\n",
38 __func__, rom_data->vendor, rom_data->device);
39 if (dev->vendor != rom_data->vendor || dev->device != rom_data->device) {
40 printk_err("%s, Device or Vendor ID mismatch\n");
44 printk_spew("%s, PCI ROM Image, Class Code %02x%04x, Code Type %02x\n",
45 __func__, rom_data->class_hi, rom_data->class_lo,
47 if ((dev->class >> 8) != (rom_data->class_hi << 16 | rom_data->class_lo)) {
48 printk_err("%s, Class Code mismatch %x\n",
49 __func__, dev->class);
56 static void *pci_ram_image_start = PCI_RAM_IMAGE_START;
58 #if CONFIG_CONSOLE_VGA == 1
59 int vga_inited = 0; // it will be used by vga_console
62 struct rom_header *pci_rom_load(struct device *dev, struct rom_header *rom_header)
64 struct pci_data * rom_data;
65 unsigned long rom_address;
66 unsigned int rom_size;
68 rom_address = pci_read_config32(dev, PCI_ROM_ADDRESS);
69 rom_data = (unsigned char *) rom_header + le32_to_cpu(rom_header->data);
70 rom_size = rom_header->size*512;
72 if (PCI_CLASS_DISPLAY_VGA == (rom_data->class_hi << 16 | rom_data->class_lo)) {
73 #if CONFIG_CONSOLE_VGA == 1
74 if(vga_inited) return NULL; // only one VGA supported
75 printk_spew("%s, copying VGA ROM Image from %x to %x, %x bytes\n",
76 __func__, rom_header, PCI_VGA_RAM_IMAGE_START, rom_size);
77 memcpy(PCI_VGA_RAM_IMAGE_START, rom_header, rom_size);
79 return (struct rom_header *) (PCI_VGA_RAM_IMAGE_START);
82 printk_spew("%s, copying non-VGA ROM Image from %x to %x, %x bytes\n",
83 __func__, rom_header, pci_ram_image_start, rom_size);
84 memcpy(pci_ram_image_start, rom_header, rom_size);
85 pci_ram_image_start += rom_size;
86 return (struct rom_header *) pci_ram_image_start;
88 /* disable expansion ROM address decoding */
89 pci_write_config32(dev, PCI_ROM_ADDRESS, rom_address & ~PCI_ROM_ADDRESS_ENABLE);