+++ /dev/null
-/*
- * (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
- */
-
-#ifndef _BIOS_H_
-#define _BIOS_H_
-
-#define OFFS_ES 0 /* 16bit */
-#define OFFS_GS 2 /* 16bit */
-#define OFFS_DS 4 /* 16bit */
-#define OFFS_EDI 6 /* 32bit */
-#define OFFS_DI 6 /* low 16 bits of EDI */
-#define OFFS_ESI 10 /* 32bit */
-#define OFFS_SI 10 /* low 16 bits of ESI */
-#define OFFS_EBP 14 /* 32bit */
-#define OFFS_BP 14 /* low 16 bits of EBP */
-#define OFFS_ESP 18 /* 32bit */
-#define OFFS_SP 18 /* low 16 bits of ESP */
-#define OFFS_EBX 22 /* 32bit */
-#define OFFS_BX 22 /* low 16 bits of EBX */
-#define OFFS_BL 22 /* low 8 bits of BX */
-#define OFFS_BH 23 /* high 8 bits of BX */
-#define OFFS_EDX 26 /* 32bit */
-#define OFFS_DX 26 /* low 16 bits of EBX */
-#define OFFS_DL 26 /* low 8 bits of BX */
-#define OFFS_DH 27 /* high 8 bits of BX */
-#define OFFS_ECX 30 /* 32bit */
-#define OFFS_CX 30 /* low 16 bits of EBX */
-#define OFFS_CL 30 /* low 8 bits of BX */
-#define OFFS_CH 31 /* high 8 bits of BX */
-#define OFFS_EAX 34 /* 32bit */
-#define OFFS_AX 34 /* low 16 bits of EBX */
-#define OFFS_AL 34 /* low 8 bits of BX */
-#define OFFS_AH 35 /* high 8 bits of BX */
-#define OFFS_VECTOR 38 /* 16bit */
-#define OFFS_IP 40 /* 16bit */
-#define OFFS_CS 42 /* 16bit */
-#define OFFS_FLAGS 44 /* 16bit */
-
-/* stack at 0x40:0x800 -> 0x800 */
-#define SEGMENT 0x40
-#define STACK 0x800
-
-/*
- * save general registers
- * save some segments
- * save callers stack segment
- * setup BIOS segments
- * setup BIOS stackpointer
- */
-#define MAKE_BIOS_STACK \
- pushal; \
- pushw %ds; \
- pushw %gs; \
- pushw %es; \
- pushw %ss; \
- popw %gs; \
- movw $SEGMENT, %ax; \
- movw %ax, %ds; \
- movw %ax, %es; \
- movw %ax, %ss; \
- movw %sp, %bp; \
- movw $STACK, %sp
-
-/*
- * restore callers stack segment
- * restore some segments
- * restore general registers
- */
-#define RESTORE_CALLERS_STACK \
- pushw %gs; \
- popw %ss; \
- movw %bp, %sp; \
- popw %es; \
- popw %gs; \
- popw %ds; \
- popal
-
-#ifndef __ASSEMBLY__
-#define BIOS_DATA ((char *)0x400)
-#define BIOS_DATA_SIZE 256
-#define BIOS_BASE ((char *)0xf0000)
-#define BIOS_CS 0xf000
-
-extern ulong __bios_start;
-extern ulong __bios_size;
-
-/* these are defined in a 16bit segment and needs
- * to be accessed with the RELOC_16_xxxx() macros below
- */
-extern u16 ram_in_64kb_chunks;
-extern u16 bios_equipment;
-extern u8 pci_last_bus;
-
-extern void *rm_int00;
-extern void *rm_int01;
-extern void *rm_int02;
-extern void *rm_int03;
-extern void *rm_int04;
-extern void *rm_int05;
-extern void *rm_int06;
-extern void *rm_int07;
-extern void *rm_int08;
-extern void *rm_int09;
-extern void *rm_int0a;
-extern void *rm_int0b;
-extern void *rm_int0c;
-extern void *rm_int0d;
-extern void *rm_int0e;
-extern void *rm_int0f;
-extern void *rm_int10;
-extern void *rm_int11;
-extern void *rm_int12;
-extern void *rm_int13;
-extern void *rm_int14;
-extern void *rm_int15;
-extern void *rm_int16;
-extern void *rm_int17;
-extern void *rm_int18;
-extern void *rm_int19;
-extern void *rm_int1a;
-extern void *rm_int1b;
-extern void *rm_int1c;
-extern void *rm_int1d;
-extern void *rm_int1e;
-extern void *rm_int1f;
-extern void *rm_def_int;
-
-#define RELOC_16_LONG(seg, off) (*(u32 *)(seg << 4 | (u32)&off))
-#define RELOC_16_WORD(seg, off) (*(u16 *)(seg << 4 | (u32)&off))
-#define RELOC_16_BYTE(seg, off) (*(u8 *)(seg << 4 | (u32)&off))
-
-#ifdef PCI_BIOS_DEBUG
-extern u32 num_pci_bios_present;
-extern u32 num_pci_bios_find_device;
-extern u32 num_pci_bios_find_class;
-extern u32 num_pci_bios_generate_special_cycle;
-extern u32 num_pci_bios_read_cfg_byte;
-extern u32 num_pci_bios_read_cfg_word;
-extern u32 num_pci_bios_read_cfg_dword;
-extern u32 num_pci_bios_write_cfg_byte;
-extern u32 num_pci_bios_write_cfg_word;
-extern u32 num_pci_bios_write_cfg_dword;
-extern u32 num_pci_bios_get_irq_routing;
-extern u32 num_pci_bios_set_irq;
-extern u32 num_pci_bios_unknown_function;
-#endif
-
-#endif
-
-#endif
+++ /dev/null
-/*
- * (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
projects / u-boot.git / commitdiff