arch/mips/include/asm/prom.h

   1 /*
   2  *  arch/mips/include/asm/prom.h
   3  *
   4  *  Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  */
  11 #ifndef __ASM_PROM_H
  12 #define __ASM_PROM_H
  13
  14 #ifdef CONFIG_OF
  15 #include <linux/bug.h>
  16 #include <linux/io.h>
  17 #include <linux/types.h>
  18 #include <asm/bootinfo.h>
  19
  20 extern int early_init_dt_scan_memory_arch(unsigned long node,
  21         const char *uname, int depth, void *data);
  22
  23 extern void device_tree_init(void);
  24
  25 static inline unsigned long pci_address_to_pio(phys_addr_t address)
  26 {
  27         /*
  28          * The ioport address can be directly used by inX() / outX()
  29          */
  30         BUG_ON(address > IO_SPACE_LIMIT);
  31
  32         return (unsigned long) address;
  33 }
  34 #define pci_address_to_pio pci_address_to_pio
  35
  36 struct boot_param_header;
  37
  38 extern void __dt_setup_arch(struct boot_param_header *bph);
  39
  40 #define dt_setup_arch(sym)                                              \
  41 ({                                                                      \
  42         extern struct boot_param_header __dtb_##sym##_begin;            \
  43                                                                         \
  44         __dt_setup_arch(&__dtb_##sym##_begin);                          \
  45 })
  46
  47 #else /* CONFIG_OF */
  48 static inline void device_tree_init(void) { }
  49 #endif /* CONFIG_OF */
  50
  51 #endif /* __ASM_PROM_H */