arch/sparc/include/asm/pci_32.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __SPARC_PCI_H
   3 #define __SPARC_PCI_H
   4
   5 #ifdef __KERNEL__
   6
   7 #include <linux/dma-mapping.h>
   8
   9 /* Can be used to override the logic in pci_scan_bus for skipping
  10  * already-configured bus numbers - to be used for buggy BIOSes
  11  * or architectures with incomplete PCI setup by the loader.
  12  */
  13 #define pcibios_assign_all_busses()     0
  14
  15 #define PCIBIOS_MIN_IO          0UL
  16 #define PCIBIOS_MIN_MEM         0UL
  17
  18 #define PCI_IRQ_NONE            0xffffffff
  19
  20 /* Dynamic DMA mapping stuff.
  21  */
  22 #define PCI_DMA_BUS_IS_PHYS     (0)
  23
  24 #endif /* __KERNEL__ */
  25
  26 #ifndef CONFIG_LEON_PCI
  27 /* generic pci stuff */
  28 #include <asm-generic/pci.h>
  29 #else
  30 /*
  31  * On LEON PCI Memory space is mapped 1:1 with physical address space.
  32  *
  33  * I/O space is located at low 64Kbytes in PCI I/O space. The I/O addresses
  34  * are converted into CPU addresses to virtual addresses that are mapped with
  35  * MMU to the PCI Host PCI I/O space window which are translated to the low
  36  * 64Kbytes by the Host controller.
  37  */
  38
  39 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  40 {
  41         return PCI_IRQ_NONE;
  42 }
  43 #endif
  44
  45 #endif /* __SPARC_PCI_H */