xref: /openbmc/linux/arch/powerpc/include/asm/prom.h (revision 60063497a95e716c9a689af3be2687d261f115b4)
19d24c888SGrant Likely #include <linux/of.h>	/* linux/of.h gets to determine #include ordering */
2b8b572e1SStephen Rothwell #ifndef _POWERPC_PROM_H
3b8b572e1SStephen Rothwell #define _POWERPC_PROM_H
4b8b572e1SStephen Rothwell #ifdef __KERNEL__
5b8b572e1SStephen Rothwell 
6b8b572e1SStephen Rothwell /*
7b8b572e1SStephen Rothwell  * Definitions for talking to the Open Firmware PROM on
8b8b572e1SStephen Rothwell  * Power Macintosh computers.
9b8b572e1SStephen Rothwell  *
10b8b572e1SStephen Rothwell  * Copyright (C) 1996-2005 Paul Mackerras.
11b8b572e1SStephen Rothwell  *
12b8b572e1SStephen Rothwell  * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
13b8b572e1SStephen Rothwell  *
14b8b572e1SStephen Rothwell  * This program is free software; you can redistribute it and/or
15b8b572e1SStephen Rothwell  * modify it under the terms of the GNU General Public License
16b8b572e1SStephen Rothwell  * as published by the Free Software Foundation; either version
17b8b572e1SStephen Rothwell  * 2 of the License, or (at your option) any later version.
18b8b572e1SStephen Rothwell  */
19b8b572e1SStephen Rothwell #include <linux/types.h>
20b8b572e1SStephen Rothwell #include <asm/irq.h>
21*60063497SArun Sharma #include <linux/atomic.h>
22b8b572e1SStephen Rothwell 
23b8b572e1SStephen Rothwell #define HAVE_ARCH_DEVTREE_FIXUPS
24b8b572e1SStephen Rothwell 
25b8b572e1SStephen Rothwell /*
26b8b572e1SStephen Rothwell  * OF address retreival & translation
27b8b572e1SStephen Rothwell  */
28b8b572e1SStephen Rothwell 
29b8b572e1SStephen Rothwell /* Translate a DMA address from device space to CPU space */
30b8b572e1SStephen Rothwell extern u64 of_translate_dma_address(struct device_node *dev,
310131d897SSebastian Andrzej Siewior 				    const __be32 *in_addr);
32b8b572e1SStephen Rothwell 
331f5bef30SGrant Likely #ifdef CONFIG_PCI
341f5bef30SGrant Likely extern unsigned long pci_address_to_pio(phys_addr_t address);
3522ae782fSGrant Likely #define pci_address_to_pio pci_address_to_pio
361f5bef30SGrant Likely #endif	/* CONFIG_PCI */
371f5bef30SGrant Likely 
38b8b572e1SStephen Rothwell /* Parse the ibm,dma-window property of an OF node into the busno, phys and
39b8b572e1SStephen Rothwell  * size parameters.
40b8b572e1SStephen Rothwell  */
41b8b572e1SStephen Rothwell void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
42b8b572e1SStephen Rothwell 		unsigned long *busno, unsigned long *phys, unsigned long *size);
43b8b572e1SStephen Rothwell 
44b8b572e1SStephen Rothwell extern void kdump_move_device_tree(void);
45b8b572e1SStephen Rothwell 
46b8b572e1SStephen Rothwell /* CPU OF node matching */
47b8b572e1SStephen Rothwell struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
48b8b572e1SStephen Rothwell 
49e523f723SNathan Lynch /* cache lookup */
50e523f723SNathan Lynch struct device_node *of_find_next_cache_node(struct device_node *np);
51e523f723SNathan Lynch 
52559e2b7eSGrant Likely #ifdef CONFIG_NUMA
53559e2b7eSGrant Likely extern int of_node_to_nid(struct device_node *device);
54559e2b7eSGrant Likely #else
55559e2b7eSGrant Likely static inline int of_node_to_nid(struct device_node *device) { return 0; }
56559e2b7eSGrant Likely #endif
57559e2b7eSGrant Likely #define of_node_to_nid of_node_to_nid
58559e2b7eSGrant Likely 
59129ac799SGrant Likely extern void of_instantiate_rtc(void);
60129ac799SGrant Likely 
6122ae782fSGrant Likely /* These includes are put at the bottom because they may contain things
6222ae782fSGrant Likely  * that are overridden by this file.  Ideally they shouldn't be included
6322ae782fSGrant Likely  * by this file, but there are a bunch of .c files that currently depend
6422ae782fSGrant Likely  * on it.  Eventually they will be cleaned up. */
6522ae782fSGrant Likely #include <linux/of_fdt.h>
6622ae782fSGrant Likely #include <linux/of_address.h>
6722ae782fSGrant Likely #include <linux/of_irq.h>
6822ae782fSGrant Likely #include <linux/platform_device.h>
6922ae782fSGrant Likely 
70b8b572e1SStephen Rothwell #endif /* __KERNEL__ */
71b8b572e1SStephen Rothwell #endif /* _POWERPC_PROM_H */
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