1 #include <linux/of.h> /* linux/of.h gets to determine #include ordering */
2 #ifndef _POWERPC_PROM_H
3 #define _POWERPC_PROM_H
7 * Definitions for talking to the Open Firmware PROM on
8 * Power Macintosh computers.
10 * Copyright (C) 1996-2005 Paul Mackerras.
12 * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License
16 * as published by the Free Software Foundation; either version
17 * 2 of the License, or (at your option) any later version.
19 #include <linux/types.h>
20 #include <linux/of_fdt.h>
21 #include <linux/of_address.h>
22 #include <linux/of_irq.h>
23 #include <linux/proc_fs.h>
24 #include <linux/platform_device.h>
26 #include <asm/atomic.h>
28 #define HAVE_ARCH_DEVTREE_FIXUPS
32 * PCI <-> OF matching functions
33 * (XXX should these be here?)
37 extern int pci_device_from_OF_node(struct device_node *node,
39 extern struct device_node* pci_busdev_to_OF_node(struct pci_bus *, int);
40 extern struct device_node* pci_device_to_OF_node(struct pci_dev *);
41 extern void pci_create_OF_bus_map(void);
45 * OF address retreival & translation
48 /* Translate a DMA address from device space to CPU space */
49 extern u64 of_translate_dma_address(struct device_node *dev,
52 /* Extract an address from a device, returns the region size and
53 * the address space flags too. The PCI version uses a BAR number
54 * instead of an absolute index
56 extern const u32 *of_get_address(struct device_node *dev, int index,
57 u64 *size, unsigned int *flags);
59 extern const u32 *of_get_pci_address(struct device_node *dev, int bar_no,
60 u64 *size, unsigned int *flags);
62 static inline const u32 *of_get_pci_address(struct device_node *dev,
63 int bar_no, u64 *size, unsigned int *flags)
67 #endif /* CONFIG_PCI */
70 extern int of_pci_address_to_resource(struct device_node *dev, int bar,
73 static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
78 #endif /* CONFIG_PCI */
81 extern unsigned long pci_address_to_pio(phys_addr_t address);
83 static inline unsigned long pci_address_to_pio(phys_addr_t address)
85 return (unsigned long)-1;
87 #endif /* CONFIG_PCI */
89 /* Parse the ibm,dma-window property of an OF node into the busno, phys and
92 void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
93 unsigned long *busno, unsigned long *phys, unsigned long *size);
95 extern void kdump_move_device_tree(void);
97 /* CPU OF node matching */
98 struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
101 struct device_node *of_find_next_cache_node(struct device_node *np);
103 /* Get the MAC address */
104 extern const void *of_get_mac_address(struct device_node *np);
107 * of_irq_map_pci - Resolve the interrupt for a PCI device
108 * @pdev: the device whose interrupt is to be resolved
109 * @out_irq: structure of_irq filled by this function
111 * This function resolves the PCI interrupt for a given PCI device. If a
112 * device-node exists for a given pci_dev, it will use normal OF tree
113 * walking. If not, it will implement standard swizzling and walk up the
114 * PCI tree until an device-node is found, at which point it will finish
115 * resolving using the OF tree walking.
118 extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq);
120 #endif /* __KERNEL__ */
121 #endif /* _POWERPC_PROM_H */