summaryrefslogtreecommitdiff
path: root/arch/x86/lib/pci.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/lib/pci.c')
-rw-r--r--arch/x86/lib/pci.c188
1 files changed, 0 insertions, 188 deletions
diff --git a/arch/x86/lib/pci.c b/arch/x86/lib/pci.c
deleted file mode 100644
index 71878dd..0000000
--- a/arch/x86/lib/pci.c
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
- * (C) Copyright 2002
- * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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.
- *
- * 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., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <pci.h>
-#include <asm/io.h>
-#include <asm/pci.h>
-
-#undef PCI_ROM_SCAN_VERBOSE
-
-int pci_shadow_rom(pci_dev_t dev, unsigned char *dest)
-{
- struct pci_controller *hose;
- int res = -1;
- int i;
-
- u32 rom_addr;
- u32 addr_reg;
- u32 size;
-
- u16 vendor;
- u16 device;
- u32 class_code;
-
- u32 pci_data;
-
- hose = pci_bus_to_hose(PCI_BUS(dev));
-
- debug("pci_shadow_rom() asked to shadow device %x to %x\n",
- dev, (u32)dest);
-
- pci_read_config_word(dev, PCI_VENDOR_ID, &vendor);
- pci_read_config_word(dev, PCI_DEVICE_ID, &device);
- pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_code);
-
- class_code &= 0xffffff00;
- class_code >>= 8;
-
- debug("PCI Header Vendor %04x device %04x class %06x\n",
- vendor, device, class_code);
-
- /* Enable the rom addess decoder */
- pci_write_config_dword(dev, PCI_ROM_ADDRESS, (u32)PCI_ROM_ADDRESS_MASK);
- pci_read_config_dword(dev, PCI_ROM_ADDRESS, &addr_reg);
-
- if (!addr_reg) {
- /* register unimplemented */
- printf("pci_chadow_rom: device do not seem to have a rom\n");
- return -1;
- }
-
- size = (~(addr_reg&PCI_ROM_ADDRESS_MASK)) + 1;
-
- debug("ROM is %d bytes\n", size);
-
- rom_addr = pci_get_rom_window(hose, size);
-
- debug("ROM mapped at %x\n", rom_addr);
-
- pci_write_config_dword(dev, PCI_ROM_ADDRESS,
- pci_phys_to_mem(dev, rom_addr)
- |PCI_ROM_ADDRESS_ENABLE);
-
-
- for (i = rom_addr; i < rom_addr + size; i += 512) {
- if (readw(i) == 0xaa55) {
-#ifdef PCI_ROM_SCAN_VERBOSE
- printf("ROM signature found\n");
-#endif
- pci_data = readw(0x18 + i);
- pci_data += i;
-
- if (0 == memcmp((void *)pci_data, "PCIR", 4)) {
-#ifdef PCI_ROM_SCAN_VERBOSE
- printf("Fount PCI rom image at offset %d\n",
- i - rom_addr);
- printf("Vendor %04x device %04x class %06x\n",
- readw(pci_data + 4), readw(pci_data + 6),
- readl(pci_data + 0x0d) & 0xffffff);
- printf("%s\n",
- (readw(pci_data + 0x15) & 0x80) ?
- "Last image" : "More images follow");
- switch (readb(pci_data + 0x14)) {
- case 0:
- printf("X86 code\n");
- break;
- case 1:
- printf("Openfirmware code\n");
- break;
- case 2:
- printf("PARISC code\n");
- break;
- }
- printf("Image size %d\n",
- readw(pci_data + 0x10) * 512);
-#endif
- /*
- * FixMe: I think we should compare the class
- * code bytes as well but I have no reference
- * on the exact order of these bytes in the PCI
- * ROM header
- */
- if (readw(pci_data + 4) == vendor &&
- readw(pci_data + 6) == device &&
- readb(pci_data + 0x14) == 0) {
-#ifdef PCI_ROM_SCAN_VERBOSE
- printf("Suitable ROM image found\n");
-#endif
- memmove(dest, (void *)rom_addr,
- readw(pci_data + 0x10) * 512);
- res = 0;
- break;
-
- }
-
- if (readw(pci_data + 0x15) & 0x80)
- break;
- }
- }
-
- }
-
-#ifdef PCI_ROM_SCAN_VERBOSE
- if (res)
- printf("No suitable image found\n");
-#endif
- /* disable PAR register and PCI device ROM address devocer */
- pci_remove_rom_window(hose, rom_addr);
-
- pci_write_config_dword(dev, PCI_ROM_ADDRESS, 0);
-
- return res;
-}
-
-#ifdef PCI_BIOS_DEBUG
-
-void print_bios_bios_stat(void)
-{
- printf("16 bit functions:\n");
- printf("pci_bios_present: %d\n",
- RELOC_16_LONG(0xf000, num_pci_bios_present));
- printf("pci_bios_find_device: %d\n",
- RELOC_16_LONG(0xf000, num_pci_bios_find_device));
- printf("pci_bios_find_class: %d\n",
- RELOC_16_LONG(0xf000, num_pci_bios_find_class));
- printf("pci_bios_generate_special_cycle: %d\n",
- RELOC_16_LONG(0xf000,
- num_pci_bios_generate_special_cycle));
- printf("pci_bios_read_cfg_byte: %d\n",
- RELOC_16_LONG(0xf000, num_pci_bios_read_cfg_byte));
- printf("pci_bios_read_cfg_word: %d\n",
- RELOC_16_LONG(0xf000, num_pci_bios_read_cfg_word));
- printf("pci_bios_read_cfg_dword: %d\n",
- RELOC_16_LONG(0xf000, num_pci_bios_read_cfg_dword));
- printf("pci_bios_write_cfg_byte: %d\n",
- RELOC_16_LONG(0xf000, num_pci_bios_write_cfg_byte));
- printf("pci_bios_write_cfg_word: %d\n",
- RELOC_16_LONG(0xf000, num_pci_bios_write_cfg_word));
- printf("pci_bios_write_cfg_dword: %d\n",
- RELOC_16_LONG(0xf000, num_pci_bios_write_cfg_dword));
- printf("pci_bios_get_irq_routing: %d\n",
- RELOC_16_LONG(0xf000, num_pci_bios_get_irq_routing));
- printf("pci_bios_set_irq: %d\n",
- RELOC_16_LONG(0xf000, num_pci_bios_set_irq));
- printf("pci_bios_unknown_function: %d\n",
- RELOC_16_LONG(0xf000, num_pci_bios_unknown_function));
-}
-#endif
generated by cgit v1.1 at 2024-12-23 11:09:06 +0000