162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0+ 262306a36Sopenharmony_ci 362306a36Sopenharmony_ci#include <linux/pci.h> 462306a36Sopenharmony_ci#include <loongson.h> 562306a36Sopenharmony_ci 662306a36Sopenharmony_cistatic void pci_fixup_video(struct pci_dev *pdev) 762306a36Sopenharmony_ci{ 862306a36Sopenharmony_ci struct resource *res = &pdev->resource[PCI_ROM_RESOURCE]; 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci if (res->start) 1162306a36Sopenharmony_ci return; 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_ci if (!loongson_sysconf.vgabios_addr) 1462306a36Sopenharmony_ci return; 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_ci pci_disable_rom(pdev); 1762306a36Sopenharmony_ci if (res->parent) 1862306a36Sopenharmony_ci release_resource(res); 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ci res->start = virt_to_phys((void *) loongson_sysconf.vgabios_addr); 2162306a36Sopenharmony_ci res->end = res->start + 256*1024 - 1; 2262306a36Sopenharmony_ci res->flags = IORESOURCE_MEM | IORESOURCE_ROM_SHADOW | 2362306a36Sopenharmony_ci IORESOURCE_PCI_FIXED; 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci dev_info(&pdev->dev, "Video device with shadowed ROM at %pR\n", res); 2662306a36Sopenharmony_ci} 2762306a36Sopenharmony_ciDECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_ATI, 0x9615, 2862306a36Sopenharmony_ci PCI_CLASS_DISPLAY_VGA, 8, pci_fixup_video); 29