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MIPS: pci: parse memory ranges from devicetree

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Implement pci_load_of_ranges on MIPS. Due to lack of test hardware only 32bit
bus width is supported. This function is based on pci_process_bridge_OF_ranges
from powerpc.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3729/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
John Crispin 2012-05-04 10:50:13 +02:00 • committed by Ralf Baechle
parent 3572a2c37f
commit a48cf37ac8
2 changed files with 61 additions and 0 deletions
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6
arch/mips/include/asm/pci.h
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@ -17,6 +17,7 @@
*/
#include <linux/ioport.h>
#include <linux/of.h>
/*
* Each pci channel is a top-level PCI bus seem by CPU. A machine with
@ -26,6 +27,7 @@
struct pci_controller {
struct pci_controller *next;
struct pci_bus *bus;
struct device_node *of_node;
struct pci_ops *pci_ops;
struct resource *mem_resource;
@ -142,4 +144,8 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
extern char * (*pcibios_plat_setup)(char *str);
/* this function parses memory ranges from a device node */
extern void __devinit pci_load_of_ranges(struct pci_controller *hose,
struct device_node *node);
#endif /* _ASM_PCI_H */