LXR linux/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 */
  30struct pci_bus;
  31struct pci_dev;
  32extern int pci_device_from_OF_node(struct device_node *node,
  33                                   u8* bus, u8* devfn);
  34extern struct device_node* pci_busdev_to_OF_node(struct pci_bus *, int);
  35extern struct device_node* pci_device_to_OF_node(struct pci_dev *);
  36extern 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 */
  44extern u64 of_translate_dma_address(struct device_node *dev,
  45                                    const __be32 *in_addr);
  46
  47#ifdef CONFIG_PCI
  48extern 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 */
  55void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
  56                unsigned long *busno, unsigned long *phys, unsigned long *size);
  57
  58extern void kdump_move_device_tree(void);
  59
  60/* CPU OF node matching */
  61struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
  62
  63/* cache lookup */
  64struct device_node *of_find_next_cache_node(struct device_node *np);
  65
  66#ifdef CONFIG_NUMA
  67extern int of_node_to_nid(struct device_node *device);
  68#else
  69static 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
  73extern 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