mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 08:57:58 +00:00
bdc88d4eb3
We shouldn't assume that the VGA ROM can always be loaded at c0000. This is only true on x86 machines. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/*
|
|
* From coreboot file of same name
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef _PCI_ROM_H
|
|
#define _PCI_ROM_H
|
|
|
|
#define PCI_ROM_HDR 0xaa55
|
|
|
|
struct pci_rom_header {
|
|
uint16_t signature;
|
|
uint8_t size;
|
|
uint8_t init[3];
|
|
uint8_t reserved[0x12];
|
|
uint16_t data;
|
|
};
|
|
|
|
struct pci_rom_data {
|
|
uint32_t signature;
|
|
uint16_t vendor;
|
|
uint16_t device;
|
|
uint16_t reserved_1;
|
|
uint16_t dlen;
|
|
uint8_t drevision;
|
|
uint8_t class_lo;
|
|
uint16_t class_hi;
|
|
uint16_t ilen;
|
|
uint16_t irevision;
|
|
uint8_t type;
|
|
uint8_t indicator;
|
|
uint16_t reserved_2;
|
|
};
|
|
|
|
/**
|
|
* pci_run_vga_bios() - Run the VGA BIOS in an x86 PC
|
|
*
|
|
* @dev: Video device containing the BIOS
|
|
* @int15_handler: Function to call to handle int 0x15
|
|
* @emulate: true to use the x86 emulator, false to run native
|
|
*/
|
|
int pci_run_vga_bios(pci_dev_t dev, int (*int15_handler)(void), bool emulate);
|
|
|
|
/**
|
|
* board_map_oprom_vendev() - map several PCI IDs to the one the ROM expects
|
|
*
|
|
* Some VGA option roms are used for several chipsets but they only have one
|
|
* PCI ID in their header. If we encounter such an option rom, we need to do
|
|
* the mapping ourselves.
|
|
*
|
|
* @vendev: Vendor and device for the video device
|
|
* @return standard vendor and device expected by the ROM
|
|
*/
|
|
uint32_t board_map_oprom_vendev(uint32_t vendev);
|
|
|
|
#endif
|