arch/mips/loongson64/pci.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
   4  * Author: Fuxin Zhang, zhangfx@lemote.com
   5  */
   6 #include <linux/pci.h>
   7
   8 #include <pci.h>
   9 #include <loongson.h>
  10 #include <boot_param.h>
  11
  12 static struct resource loongson_pci_mem_resource = {
  13         .name   = "pci memory space",
  14         .start  = LOONGSON_PCI_MEM_START,
  15         .end    = LOONGSON_PCI_MEM_END,
  16         .flags  = IORESOURCE_MEM,
  17 };
  18
  19 static struct resource loongson_pci_io_resource = {
  20         .name   = "pci io space",
  21         .start  = LOONGSON_PCI_IO_START,
  22         .end    = IO_SPACE_LIMIT,
  23         .flags  = IORESOURCE_IO,
  24 };
  25
  26 static struct pci_controller  loongson_pci_controller = {
  27         .pci_ops        = &loongson_pci_ops,
  28         .io_resource    = &loongson_pci_io_resource,
  29         .mem_resource   = &loongson_pci_mem_resource,
  30         .mem_offset     = 0x00000000UL,
  31         .io_offset      = 0x00000000UL,
  32 };
  33
  34
  35 extern int sbx00_acpi_init(void);
  36
  37 static int __init pcibios_init(void)
  38 {
  39
  40         loongson_pci_controller.io_map_base = mips_io_port_base;
  41         loongson_pci_mem_resource.start = loongson_sysconf.pci_mem_start_addr;
  42         loongson_pci_mem_resource.end = loongson_sysconf.pci_mem_end_addr;
  43
  44         register_pci_controller(&loongson_pci_controller);
  45
  46         sbx00_acpi_init();
  47
  48         return 0;
  49 }
  50
  51 arch_initcall(pcibios_init);