include/asm-xtensa/platform.h

   1 /*
   2  * include/asm-xtensa/platform.h
   3  *
   4  * Platform specific functions
   5  *
   6  * This file is subject to the terms and conditions of the GNU General
   7  * Public License.  See the file "COPYING" in the main directory of
   8  * this archive for more details.
   9  *
  10  * Copyright (C) 2001 - 2005 Tensilica Inc.
  11  */
  12
  13 #ifndef _XTENSA_PLATFORM_H
  14 #define _XTENSA_PLATFORM_H
  15
  16 #include <linux/types.h>
  17 #include <linux/pci.h>
  18
  19 #include <asm/bootparam.h>
  20
  21 /*
  22  * platform_init is called before the mmu is initialized to give the
  23  * platform a early hook-up. bp_tag_t is a list of configuration tags
  24  * passed from the boot-loader.
  25  */
  26 extern void platform_init(bp_tag_t*);
  27
  28 /*
  29  * platform_setup is called from setup_arch with a pointer to the command-line
  30  * string.
  31  */
  32 extern void platform_setup (char **);
  33
  34 /*
  35  * platform_init_irq is called from init_IRQ.
  36  */
  37 extern void platform_init_irq (void);
  38
  39 /*
  40  * platform_restart is called to restart the system.
  41  */
  42 extern void platform_restart (void);
  43
  44 /*
  45  * platform_halt is called to stop the system and halt.
  46  */
  47 extern void platform_halt (void);
  48
  49 /*
  50  * platform_power_off is called to stop the system and power it off.
  51  */
  52 extern void platform_power_off (void);
  53
  54 /*
  55  * platform_idle is called from the idle function.
  56  */
  57 extern void platform_idle (void);
  58
  59 /*
  60  * platform_heartbeat is called every HZ
  61  */
  62 extern void platform_heartbeat (void);
  63
  64 /*
  65  * platform_pcibios_init is called to allow the platform to setup the pci bus.
  66  */
  67 extern void platform_pcibios_init (void);
  68
  69 /*
  70  * platform_pcibios_fixup allows to modify the PCI configuration.
  71  */
  72 extern int platform_pcibios_fixup (void);
  73
  74 /*
  75  * platform_calibrate_ccount calibrates cpu clock freq (CONFIG_XTENSA_CALIBRATE)
  76  */
  77 extern void platform_calibrate_ccount (void);
  78
  79 /*
  80  * platform_get_rtc_time returns RTC seconds (returns 0 for no error)
  81  */
  82 extern int platform_get_rtc_time(time_t*);
  83
  84 /*
  85  * platform_set_rtc_time set RTC seconds (returns 0 for no error)
  86  */
  87 extern int platform_set_rtc_time(time_t);
  88
  89
  90 #endif  /* _XTENSA_PLATFORM_H */
  91