[linux-2.6-block.git] / arch / mips / dec / reset.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Reset a DECstation machine.
 *
 * Copyright (C) 199x  the Anonymous
 * Copyright (C) 2001, 2002, 2003  Maciej W. Rozycki
 */
#include <linux/interrupt.h>
#include <linux/linkage.h>

#include <asm/addrspace.h>

typedef void __noreturn (* noret_func_t)(void);

static inline void __noreturn back_to_prom(void)
{
	noret_func_t func = (void *)CKSEG1ADDR(0x1fc00000);

	func();
}

void __noreturn dec_machine_restart(char *command)
{
	back_to_prom();
}

void __noreturn dec_machine_halt(void)
{
	back_to_prom();
}

void __noreturn dec_machine_power_off(void)
{
    /* DECstations don't have a software power switch */
	back_to_prom();
}

irqreturn_t dec_intr_halt(int irq, void *dev_id)
{
	dec_machine_halt();
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
1da177e4 LT	2	/*
	3	* Reset a DECstation machine.
	4	*
	5	* Copyright (C) 199x the Anonymous
	6	* Copyright (C) 2001, 2002, 2003 Maciej W. Rozycki
	7	*/
	8	#include <linux/interrupt.h>
	9	#include <linux/linkage.h>
	10
	11	#include <asm/addrspace.h>
1da177e4	12
b3f6df9f	13	typedef void __noreturn (* noret_func_t)(void);
1da177e4	14
b3f6df9f	15	static inline void __noreturn back_to_prom(void)
1da177e4	16	{
3bd4c902	17	noret_func_t func = (void *)CKSEG1ADDR(0x1fc00000);
1da177e4 LT	18
	19	func();
	20	}
	21
b3f6df9f	22	void __noreturn dec_machine_restart(char *command)
1da177e4 LT	23	{
	24	back_to_prom();
	25	}
	26
b3f6df9f	27	void __noreturn dec_machine_halt(void)
1da177e4 LT	28	{
	29	back_to_prom();
	30	}
	31
b3f6df9f	32	void __noreturn dec_machine_power_off(void)
1da177e4 LT	33	{
	34	/* DECstations don't have a software power switch */
	35	back_to_prom();
	36	}
	37
d62801e9	38	irqreturn_t dec_intr_halt(int irq, void *dev_id)
1da177e4 LT	39	{
	40	dec_machine_halt();
	41	}