arch/csky/include/asm/pci.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #ifndef __ASM_CSKY_PCI_H
   4 #define __ASM_CSKY_PCI_H
   5
   6 #include <linux/types.h>
   7 #include <linux/slab.h>
   8 #include <linux/dma-mapping.h>
   9
  10 #include <asm/io.h>
  11
  12 #define PCIBIOS_MIN_IO          0
  13 #define PCIBIOS_MIN_MEM         0
  14
  15 /* C-SKY shim does not initialize PCI bus */
  16 #define pcibios_assign_all_busses() 1
  17
  18 extern int isa_dma_bridge_buggy;
  19
  20 #ifdef CONFIG_PCI
  21 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  22 {
  23         /* no legacy IRQ on csky */
  24         return -ENODEV;
  25 }
  26
  27 static inline int pci_proc_domain(struct pci_bus *bus)
  28 {
  29         /* always show the domain in /proc */
  30         return 1;
  31 }
  32 #endif  /* CONFIG_PCI */
  33
  34 #endif  /* __ASM_CSKY_PCI_H */