arch/powerpc/include/asm/prom.h

   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 u32 *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 /* Get the MAC address */
  67 extern const void *of_get_mac_address(struct device_node *np);
  68
  69 #ifdef CONFIG_NUMA
  70 extern int of_node_to_nid(struct device_node *device);
  71 #else
  72 static inline int of_node_to_nid(struct device_node *device) { return 0; }
  73 #endif
  74 #define of_node_to_nid of_node_to_nid
  75
  76 /**
  77  * of_irq_map_pci - Resolve the interrupt for a PCI device
  78  * @pdev:       the device whose interrupt is to be resolved
  79  * @out_irq:    structure of_irq filled by this function
  80  *
  81  * This function resolves the PCI interrupt for a given PCI device. If a
  82  * device-node exists for a given pci_dev, it will use normal OF tree
  83  * walking. If not, it will implement standard swizzling and walk up the
  84  * PCI tree until an device-node is found, at which point it will finish
  85  * resolving using the OF tree walking.
  86  */
  87 struct pci_dev;
  88 struct of_irq;
  89 extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq);
  90
  91 extern void of_instantiate_rtc(void);
  92
  93 /* These includes are put at the bottom because they may contain things
  94  * that are overridden by this file.  Ideally they shouldn't be included
  95  * by this file, but there are a bunch of .c files that currently depend
  96  * on it.  Eventually they will be cleaned up. */
  97 #include <linux/of_fdt.h>
  98 #include <linux/of_address.h>
  99 #include <linux/of_irq.h>
 100 #include <linux/platform_device.h>
 101
 102 #endif /* __KERNEL__ */
 103 #endif /* _POWERPC_PROM_H */