1/* 2 * Platform specific functions 3 * 4 * This file is subject to the terms and conditions of the GNU General 5 * Public License. See the file "COPYING" in the main directory of 6 * this archive for more details. 7 * 8 * Copyright (C) 2001 - 2005 Tensilica Inc. 9 */ 10 11#ifndef _XTENSA_PLATFORM_H 12#define _XTENSA_PLATFORM_H 13 14#include <linux/types.h> 15#include <linux/pci.h> 16 17#include <asm/bootparam.h> 18 19/* 20 * platform_init is called before the mmu is initialized to give the 21 * platform a early hook-up. bp_tag_t is a list of configuration tags 22 * passed from the boot-loader. 23 */ 24extern void platform_init(bp_tag_t*); 25 26/* 27 * platform_setup is called from setup_arch with a pointer to the command-line 28 * string. 29 */ 30extern void platform_setup (char **); 31 32/* 33 * platform_init_irq is called from init_IRQ. 34 */ 35extern void platform_init_irq (void); 36 37/* 38 * platform_restart is called to restart the system. 39 */ 40extern void platform_restart (void); 41 42/* 43 * platform_halt is called to stop the system and halt. 44 */ 45extern void platform_halt (void); 46 47/* 48 * platform_power_off is called to stop the system and power it off. 49 */ 50extern void platform_power_off (void); 51 52/* 53 * platform_idle is called from the idle function. 54 */ 55extern void platform_idle (void); 56 57/* 58 * platform_heartbeat is called every HZ 59 */ 60extern void platform_heartbeat (void); 61 62/* 63 * platform_pcibios_init is called to allow the platform to setup the pci bus. 64 */ 65extern void platform_pcibios_init (void); 66 67/* 68 * platform_pcibios_fixup allows to modify the PCI configuration. 69 */ 70extern int platform_pcibios_fixup (void); 71 72/* 73 * platform_calibrate_ccount calibrates cpu clock freq (CONFIG_XTENSA_CALIBRATE) 74 */ 75extern void platform_calibrate_ccount (void); 76 77#endif /* _XTENSA_PLATFORM_H */ 78