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| author | Daniel Hellstrom <daniel@gaisler.com> | 2011-05-23 21:04:47 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-06-02 14:32:37 -0700 |
| commit | 26893c1368aeb96e06e4f9dce61bbde3351d5e9f (patch) | |
| tree | 1457ec4070127d751d7c4f938d37c1dcf5aa901d /arch/sparc/include/asm/pci_32.h | |
| parent | cfe3af5dde34a019c1bd2485b1dc0f2d7a326ccd (diff) | |
| download | blackbird-op-linux-26893c1368aeb96e06e4f9dce61bbde3351d5e9f.tar.gz blackbird-op-linux-26893c1368aeb96e06e4f9dce61bbde3351d5e9f.zip | |
sparc32,leon: added LEON-common low-level PCI routines
The LEON architecture does not have a BIOS or bootloader that
initializes PCI for us, instead Linux generic PCI layer is used
to set up resources and IRQ.
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include/asm/pci_32.h')
| -rw-r--r-- | arch/sparc/include/asm/pci_32.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/pci_32.h b/arch/sparc/include/asm/pci_32.h index 332ac9ab36bc..862e3ce92b15 100644 --- a/arch/sparc/include/asm/pci_32.h +++ b/arch/sparc/include/asm/pci_32.h @@ -47,7 +47,31 @@ extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev); #endif /* __KERNEL__ */ +#ifndef CONFIG_LEON_PCI /* generic pci stuff */ #include <asm-generic/pci.h> +#else +/* + * On LEON PCI Memory space is mapped 1:1 with physical address space. + * + * I/O space is located at low 64Kbytes in PCI I/O space. The I/O addresses + * are converted into CPU addresses to virtual addresses that are mapped with + * MMU to the PCI Host PCI I/O space window which are translated to the low + * 64Kbytes by the Host controller. + */ + +extern void +pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, + struct resource *res); + +extern void +pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, + struct pci_bus_region *region); + +static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) +{ + return PCI_IRQ_NONE; +} +#endif #endif /* __SPARC_PCI_H */ |
