16854f87cSSimon Glass /* 26854f87cSSimon Glass * From coreboot file of same name 36854f87cSSimon Glass * 46854f87cSSimon Glass * SPDX-License-Identifier: GPL-2.0+ 56854f87cSSimon Glass */ 66854f87cSSimon Glass 76854f87cSSimon Glass #ifndef _PCI_ROM_H 86854f87cSSimon Glass #define _PCI_ROM_H 96854f87cSSimon Glass 106854f87cSSimon Glass #define PCI_ROM_HDR 0xaa55 116854f87cSSimon Glass 126854f87cSSimon Glass struct pci_rom_header { 136854f87cSSimon Glass uint16_t signature; 146854f87cSSimon Glass uint8_t size; 156854f87cSSimon Glass uint8_t init[3]; 166854f87cSSimon Glass uint8_t reserved[0x12]; 176854f87cSSimon Glass uint16_t data; 186854f87cSSimon Glass }; 196854f87cSSimon Glass 206854f87cSSimon Glass struct pci_rom_data { 216854f87cSSimon Glass uint32_t signature; 226854f87cSSimon Glass uint16_t vendor; 236854f87cSSimon Glass uint16_t device; 246854f87cSSimon Glass uint16_t reserved_1; 256854f87cSSimon Glass uint16_t dlen; 266854f87cSSimon Glass uint8_t drevision; 276854f87cSSimon Glass uint8_t class_lo; 286854f87cSSimon Glass uint16_t class_hi; 296854f87cSSimon Glass uint16_t ilen; 306854f87cSSimon Glass uint16_t irevision; 316854f87cSSimon Glass uint8_t type; 326854f87cSSimon Glass uint8_t indicator; 336854f87cSSimon Glass uint16_t reserved_2; 346854f87cSSimon Glass }; 356854f87cSSimon Glass 36bc17d8f4SSimon Glass /* 37bc17d8f4SSimon Glass * Determines which execution method is used and whether we allow falling back 38bc17d8f4SSimon Glass * to the other if the requested method is not available. 39bc17d8f4SSimon Glass */ 40bc17d8f4SSimon Glass enum pci_rom_emul { 41bc17d8f4SSimon Glass PCI_ROM_EMULATE = 0 << 0, 42bc17d8f4SSimon Glass PCI_ROM_USE_NATIVE = 1 << 0, 43bc17d8f4SSimon Glass PCI_ROM_ALLOW_FALLBACK = 1 << 1, 44bc17d8f4SSimon Glass }; 45bc17d8f4SSimon Glass 466854f87cSSimon Glass /** 47*3f4e1e8eSSimon Glass * dm_pci_run_vga_bios() - Run the VGA BIOS in an x86 PC 486854f87cSSimon Glass * 496854f87cSSimon Glass * @dev: Video device containing the BIOS 506854f87cSSimon Glass * @int15_handler: Function to call to handle int 0x15 51bc17d8f4SSimon Glass * @exec_method: flags from enum pci_rom_emul 526854f87cSSimon Glass */ 53*3f4e1e8eSSimon Glass int dm_pci_run_vga_bios(struct udevice *dev, int (*int15_handler)(void), 54bc17d8f4SSimon Glass int exec_method); 556854f87cSSimon Glass 566854f87cSSimon Glass /** 576854f87cSSimon Glass * board_map_oprom_vendev() - map several PCI IDs to the one the ROM expects 586854f87cSSimon Glass * 596854f87cSSimon Glass * Some VGA option roms are used for several chipsets but they only have one 606854f87cSSimon Glass * PCI ID in their header. If we encounter such an option rom, we need to do 616854f87cSSimon Glass * the mapping ourselves. 626854f87cSSimon Glass * 636854f87cSSimon Glass * @vendev: Vendor and device for the video device 646854f87cSSimon Glass * @return standard vendor and device expected by the ROM 656854f87cSSimon Glass */ 666854f87cSSimon Glass uint32_t board_map_oprom_vendev(uint32_t vendev); 676854f87cSSimon Glass 686854f87cSSimon Glass #endif 69