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 */ 26extern 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 */ 32extern void platform_setup (char **); 33 34/* 35 * platform_init_irq is called from init_IRQ. 36 */ 37extern void platform_init_irq (void); 38 39/* 40 * platform_restart is called to restart the system. 41 */ 42extern void platform_restart (void); 43 44/* 45 * platform_halt is called to stop the system and halt. 46 */ 47extern void platform_halt (void); 48 49/* 50 * platform_power_off is called to stop the system and power it off. 51 */ 52extern void platform_power_off (void); 53 54/* 55 * platform_idle is called from the idle function. 56 */ 57extern void platform_idle (void); 58 59/* 60 * platform_heartbeat is called every HZ 61 */ 62extern void platform_heartbeat (void); 63 64/* 65 * platform_pcibios_init is called to allow the platform to setup the pci bus. 66 */ 67extern void platform_pcibios_init (void); 68 69/* 70 * platform_pcibios_fixup allows to modify the PCI configuration. 71 */ 72extern int platform_pcibios_fixup (void); 73 74/* 75 * platform_calibrate_ccount calibrates cpu clock freq (CONFIG_XTENSA_CALIBRATE) 76 */ 77extern void platform_calibrate_ccount (void); 78 79/* 80 * platform_get_rtc_time returns RTC seconds (returns 0 for no error) 81 */ 82extern int platform_get_rtc_time(time_t*); 83 84/* 85 * platform_set_rtc_time set RTC seconds (returns 0 for no error) 86 */ 87extern int platform_set_rtc_time(time_t); 88 89 90#endif /* _XTENSA_PLATFORM_H */ 91