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 an OF address block into a CPU physical address
50 extern u64 of_translate_address(struct device_node *np, const u32 *addr);
52 /* Translate a DMA address from device space to CPU space */
53 extern u64 of_translate_dma_address(struct device_node *dev,
56 /* Extract an address from a device, returns the region size and
57 * the address space flags too. The PCI version uses a BAR number
58 * instead of an absolute index
60 extern const u32 *of_get_address(struct device_node *dev, int index,
61 u64 *size, unsigned int *flags);
63 extern const u32 *of_get_pci_address(struct device_node *dev, int bar_no,
64 u64 *size, unsigned int *flags);
66 static inline const u32 *of_get_pci_address(struct device_node *dev,
67 int bar_no, u64 *size, unsigned int *flags)
71 #endif /* CONFIG_PCI */
74 extern int of_pci_address_to_resource(struct device_node *dev, int bar,
77 static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
82 #endif /* CONFIG_PCI */
85 extern unsigned long pci_address_to_pio(phys_addr_t address);
87 static inline unsigned long pci_address_to_pio(phys_addr_t address)
89 return (unsigned long)-1;
91 #endif /* CONFIG_PCI */
93 /* Parse the ibm,dma-window property of an OF node into the busno, phys and
96 void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
97 unsigned long *busno, unsigned long *phys, unsigned long *size);
99 extern void kdump_move_device_tree(void);
101 /* CPU OF node matching */
102 struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
105 struct device_node *of_find_next_cache_node(struct device_node *np);
107 /* Get the MAC address */
108 extern const void *of_get_mac_address(struct device_node *np);
111 * of_irq_map_pci - Resolve the interrupt for a PCI device
112 * @pdev: the device whose interrupt is to be resolved
113 * @out_irq: structure of_irq filled by this function
115 * This function resolves the PCI interrupt for a given PCI device. If a
116 * device-node exists for a given pci_dev, it will use normal OF tree
117 * walking. If not, it will implement standard swizzling and walk up the
118 * PCI tree until an device-node is found, at which point it will finish
119 * resolving using the OF tree walking.
122 extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq);
124 #endif /* __KERNEL__ */
125 #endif /* _POWERPC_PROM_H */