u-boot/doc/README.x86

78 Building a ROM version of U-Boot (hereafter referred to as u-boot.rom) is a
80 shipped in the U-Boot source tree. Due to this reason, the u-boot.rom build is
82 on by enabling the ROM build:
86 This tells the Makefile to build u-boot.rom as a target.
97 * video ROM - sets up the display
111 As for the video ROM, you can get it here [3] and rename it to vga.bin.
114 Now you can build U-Boot and obtain u-boot.rom:
129 * vga.bin - video ROM, which sets up the display
163 pci8086,0406.rom               0x7004c0   optionrom    65536
179    cbfstool samus.bin extract -n pci8086,0406.rom -f vga.bin
191 Now you can build U-Boot and obtain u-boot.rom:
198    em100 -s -d filename.rom -c W25Q64CV -r
212 the SPI flash where u-boot.rom resides, and this CMC binary blob can be found
228 As for the video ROM, you need manually extract it from the Intel provided
229 BIOS for Crown Bay here [6], using the AMI MMTool [7]. Check PCI option ROM
232 Now you can build U-Boot and obtain u-boot.rom
246 Now build U-Boot and obtain u-boot.rom
298 Now you can build U-Boot and obtain u-boot.rom
312 The ROM image is broken up into these parts:
327 Overall ROM image size is controlled by CONFIG_ROM_SIZE.
349 Now you can build U-Boot and obtain u-boot.rom
358 To build u-boot.rom for QEMU x86 targets, just simply run
382 $ ./build/util/cbfstool/cbfstool build/coreboot.rom add-flat-binary \
411 U-Boot. To launch QEMU with u-boot.rom, call QEMU as follows:
413 $ qemu-system-i386 -nographic -bios path/to/u-boot.rom
419 $ qemu-system-i386 -nographic -bios path/to/u-boot.rom -M q35
425 $ qemu-system-i386 -nographic -bios path/to/u-boot.rom -m 1024
445 $ qemu-system-i386 -nographic -bios path/to/u-boot.rom -m 1024 -kernel /path/to/bzImage
842    Total size: 121888  Fixed: 66496  Free: 9184 (used 93.0% of 128KiB rom)
852    $ qemu-system-i386 -serial stdio -bios u-boot.rom -hda disk.img -cdrom winxp.iso -smp 2 -m 512
855    $ qemu-system-i386 -serial stdio -bios u-boot.rom -hda disk.img -smp 2 -m 512
861 device on your board, SeaBIOS needs to be patched manually to get its VGA ROM
862 loaded and run by SeaBIOS. SeaBIOS locates VGA ROM via the PCI expansion ROM
863 register, but IGD device does not have its VGA ROM mapped by this register.
864 Its VGA ROM is packaged as part of u-boot.rom at a configurable flash address
872          rom = deploy_romfile(file);
874          rom = map_pcirom(pci);
876 +        rom = (struct rom_header *)0xfff90000;
877      if (! rom)
878          // No ROM present.
881 Note: the patch above expects IGD device is at PCI b.d.f 0.2.0 and its VGA ROM
896    sudo em100 -s -p LOW -d u-boot.rom -c W25Q64DW -r
916 The ivybridge support works this way, although it still uses a ROM for
1137 [3] http://www.coreboot.org/~stepan/pci8086,0166.rom