1 #include <linux/of.h> /* linux/of.h gets to determine #include ordering */
2 #ifndef _POWERPC_PROM_H
3 #define _POWERPC_PROM_H
4 #ifdef __KERNEL__
5
6 /*
7 * Definitions for talking to the Open Firmware PROM on
8 * Power Macintosh computers.
9 *
10 * Copyright (C) 1996-2005 Paul Mackerras.
11 *
12 * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
13 *
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.
18 */
19 #include <linux/types.h>
20 #include <asm/irq.h>
21 #include <asm/atomic.h>
22
23 #define HAVE_ARCH_DEVTREE_FIXUPS
24
25 #ifdef CONFIG_PPC32
26 /*
27 * PCI <-> OF matching functions
28 * (XXX should these be here?)
29 */
30 struct pci_bus;
31 struct pci_dev;
32 extern int pci_device_from_OF_node(struct device_node *node,
33 u8* bus, u8* devfn);
34 extern struct device_node* pci_busdev_to_OF_node(struct pci_bus *, int);
35 extern struct device_node* pci_device_to_OF_node(struct pci_dev *);
36 extern void pci_create_OF_bus_map(void);
37 #endif
38
39 /*
40 * OF address retreival & translation
41 */
42
43 /* Translate a DMA address from device space to CPU space */
44 extern u64 of_translate_dma_address(struct device_node *dev,
45 const __be32 *in_addr);
46
47 #ifdef CONFIG_PCI
48 extern unsigned long pci_address_to_pio(phys_addr_t address);
49 #define pci_address_to_pio pci_address_to_pio
50 #endif /* CONFIG_PCI */
51
52 /* Parse the ibm,dma-window property of an OF node into the busno, phys and
53 * size parameters.
54 */
55 void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
56 unsigned long *busno, unsigned long *phys, unsigned long *size);
57
58 extern void kdump_move_device_tree(void);
59
60 /* CPU OF node matching */
61 struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
62
63 /* cache lookup */
64 struct device_node *of_find_next_cache_node(struct device_node *np);
65
66 #ifdef CONFIG_NUMA
67 extern int of_node_to_nid(struct device_node *device);
68 #else
of_node_to_nid(struct device_node * device)69 static inline int of_node_to_nid(struct device_node *device) { return 0; }
70 #endif
71 #define of_node_to_nid of_node_to_nid
72
73 extern void of_instantiate_rtc(void);
74
75 /* These includes are put at the bottom because they may contain things
76 * that are overridden by this file. Ideally they shouldn't be included
77 * by this file, but there are a bunch of .c files that currently depend
78 * on it. Eventually they will be cleaned up. */
79 #include <linux/of_fdt.h>
80 #include <linux/of_address.h>
81 #include <linux/of_irq.h>
82 #include <linux/platform_device.h>
83
84 #endif /* __KERNEL__ */
85 #endif /* _POWERPC_PROM_H */
86