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/config.h>
  17 #include <linux/types.h>
  18 #include <linux/pci.h>
  19
  20 #include <asm/bootparam.h>
  21
  22 /*
  23  * platform_init is called before the mmu is initialized to give the
  24  * platform a early hook-up. bp_tag_t is a list of configuration tags
  25  * passed from the boot-loader.
  26  */
  27 extern void platform_init(bp_tag_t*);
  28
  29 /*
  30  * platform_setup is called from setup_arch with a pointer to the command-line
  31  * string.
  32  */
  33 extern void platform_setup (char **);
  34
  35 /*
  36  * platform_init_irq is called from init_IRQ.
  37  */
  38 extern void platform_init_irq (void);
  39
  40 /*
  41  * platform_restart is called to restart the system.
  42  */
  43 extern void platform_restart (void);
  44
  45 /*
  46  * platform_halt is called to stop the system and halt.
  47  */
  48 extern void platform_halt (void);
  49
  50 /*
  51  * platform_power_off is called to stop the system and power it off.
  52  */
  53 extern void platform_power_off (void);
  54
  55 /*
  56  * platform_idle is called from the idle function.
  57  */
  58 extern void platform_idle (void);
  59
  60 /*
  61  * platform_heartbeat is called every HZ
  62  */
  63 extern void platform_heartbeat (void);
  64
  65 /*
  66  * platform_pcibios_init is called to allow the platform to setup the pci bus.
  67  */
  68 extern void platform_pcibios_init (void);
  69
  70 /*
  71  * platform_pcibios_fixup allows to modify the PCI configuration.
  72  */
  73 extern int platform_pcibios_fixup (void);
  74
  75 /*
  76  * platform_calibrate_ccount calibrates cpu clock freq (CONFIG_XTENSA_CALIBRATE)
  77  */
  78 extern void platform_calibrate_ccount (void);
  79
  80 /*
  81  * platform_get_rtc_time returns RTC seconds (returns 0 for no error)
  82  */
  83 extern int platform_get_rtc_time(time_t*);
  84
  85 /*
  86  * platform_set_rtc_time set RTC seconds (returns 0 for no error)
  87  */
  88 extern int platform_set_rtc_time(time_t);
  89
  90
  91 #endif  /* _XTENSA_PLATFORM_H */
  92