diff options
Diffstat (limited to 'arch/i386/lib/pci.c')
| -rw-r--r-- | arch/i386/lib/pci.c | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/arch/i386/lib/pci.c b/arch/i386/lib/pci.c deleted file mode 100644 index e791e88bd4..0000000000 --- a/arch/i386/lib/pci.c +++ /dev/null @@ -1,150 +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; - - hose = pci_bus_to_hose(PCI_BUS(dev)); -#if 0 - printf("pci_shadow_rom() asked to shadow device %x to %x\n", - dev, (u32)dest); -#endif - 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) { - u32 pci_data; -#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 && - /* (readl(pci_data+0x0d)&0xffffff) == class_code && */ - readb(pci_data+0x14) == 0 /* x86 code image */ ) { -#ifdef PCI_ROM_SCAN_VERBOSE - printf("Suitable ROM image found, copying\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; -} |