| // SPDX-License-Identifier: GPL-2.0+ |
| |
| #include <linux/pci.h> |
| #include <loongson.h> |
| |
| static void pci_fixup_video(struct pci_dev *pdev) |
| { |
| struct resource *res = &pdev->resource[PCI_ROM_RESOURCE]; |
| |
| if (res->start) |
| return; |
| |
| if (!loongson_sysconf.vgabios_addr) |
| return; |
| |
| pci_disable_rom(pdev); |
| if (res->parent) |
| release_resource(res); |
| |
| res->start = virt_to_phys((void *) loongson_sysconf.vgabios_addr); |
| res->end = res->start + 256*1024 - 1; |
| res->flags = IORESOURCE_MEM | IORESOURCE_ROM_SHADOW | |
| IORESOURCE_PCI_FIXED; |
| |
| dev_info(&pdev->dev, "Video device with shadowed ROM at %pR\n", res); |
| } |
| DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_ATI, 0x9615, |
| PCI_CLASS_DISPLAY_VGA, 8, pci_fixup_video); |
