/****************************************************************************//*  * linux/arch/sh/boards/snapgear/setup.c * * Copyright (C) 2002  David McCullough <davidm@snapgear.com> * Copyright (C) 2003  Paul Mundt <lethal@linux-sh.org> * * Based on files with the following comments: * *           Copyright (C) 2000  Kazumoto Kojima * *           Modified for 7751 Solution Engine by *           Ian da Silva and Jeremy Siegel, 2001. *//****************************************************************************/#include <linux/config.h>#include <linux/init.h>#include <linux/irq.h>#include <linux/interrupt.h>#include <linux/timer.h>#include <linux/delay.h>#include <linux/module.h>#include <linux/sched.h>#include <asm/machvec.h>#include <asm/mach/io.h>#include <asm/irq.h>#include <asm/io.h>extern void (*board_time_init)(void);extern void secureedge5410_rtc_init(void);extern void pcibios_init(void);/****************************************************************************//* * EraseConfig handling functions */static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id, struct pt_regs *regs){	volatile char dummy __attribute__((unused)) = * (volatile char *) 0xb8000000;	printk("SnapGear: erase switch interrupt!\n");	return IRQ_HANDLED;}static int __init eraseconfig_init(void){	printk("SnapGear: EraseConfig init\n");	/* Setup "EraseConfig" switch on external IRQ 0 */	if (request_irq(IRL0_IRQ, eraseconfig_interrupt, SA_INTERRUPT,				"Erase Config", NULL))		printk("SnapGear: failed to register IRQ%d for Reset witch\n",				IRL0_IRQ);	else		printk("SnapGear: registered EraseConfig switch on IRQ%d\n",				IRL0_IRQ);	return(0);}module_init(eraseconfig_init);/****************************************************************************//* * Initialize IRQ setting * * IRL0 = erase switch * IRL1 = eth0 * IRL2 = eth1 * IRL3 = crypto */static void __init init_snapgear_IRQ(void){	/* enable individual interrupt mode for externals */	ctrl_outw(ctrl_inw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR);	printk("Setup SnapGear IRQ/IPR ...\n");	make_ipr_irq(IRL0_IRQ, IRL0_IPR_ADDR, IRL0_IPR_POS, IRL0_PRIORITY);	make_ipr_irq(IRL1_IRQ, IRL1_IPR_ADDR, IRL1_IPR_POS, IRL1_PRIORITY);	make_ipr_irq(IRL2_IRQ, IRL2_IPR_ADDR, IRL2_IPR_POS, IRL2_PRIORITY);	make_ipr_irq(IRL3_IRQ, IRL3_IPR_ADDR, IRL3_IPR_POS, IRL3_PRIORITY);}/****************************************************************************//* *	Fast poll interrupt simulator. *//* * Leave all of the fast timer/fast poll stuff commented out for now, since * it's not clear whether it actually works or not. Since it wasn't being used * at all in 2.4, we'll assume it's not sane for 2.6 either.. -- PFM */#if 0#define FAST_POLL	1000//#define FAST_POLL_INTR#define FASTTIMER_IRQ   17#define FASTTIMER_IPR_ADDR  INTC_IPRA#define FASTTIMER_IPR_POS    2#define FASTTIMER_PRIORITY   3#ifdef FAST_POLL_INTR#define TMU1_TCR_INIT	0x0020#else#define TMU1_TCR_INIT	0#endif#define TMU_TSTR_INIT	1#define TMU1_TCR_CALIB	0x0000#define TMU_TOCR	0xffd80000	/* Byte access */#define TMU_TSTR	0xffd80004	/* Byte access */#define TMU1_TCOR	0xffd80014	/* Long access */#define TMU1_TCNT	0xffd80018	/* Long access */#define TMU1_TCR	0xffd8001c	/* Word access */#ifdef FAST_POLL_INTRstatic void fast_timer_irq(int irq, void *dev_instance, struct pt_regs *regs){	unsigned long timer_status;    timer_status = ctrl_inw(TMU1_TCR);	timer_status &= ~0x100;	ctrl_outw(timer_status, TMU1_TCR);}#endif/* * return the current ticks on the fast timer */unsigned long fast_timer_count(void){	return(ctrl_inl(TMU1_TCNT));}/* * setup a fast timer for profiling etc etc */static void setup_fast_timer(){	unsigned long interval;#ifdef FAST_POLL_INTR	interval = (current_cpu_data.module_clock/4 + FAST_POLL/2) / FAST_POLL;	make_ipr_irq(FASTTIMER_IRQ, FASTTIMER_IPR_ADDR, FASTTIMER_IPR_POS,			FASTTIMER_PRIORITY);	printk("SnapGear: %dHz fast timer on IRQ %d\n",FAST_POLL,FASTTIMER_IRQ);	if (request_irq(FASTTIMER_IRQ, fast_timer_irq, 0, "SnapGear fast timer",			NULL) != 0)		printk("%s(%d): request_irq() failed?\n", __FILE__, __LINE__);#else	printk("SnapGear: fast timer running\n",FAST_POLL,FASTTIMER_IRQ);	interval = 0xffffffff;#endif	ctrl_outb(ctrl_inb(TMU_TSTR) & ~0x2, TMU_TSTR); /* disable timer 1 */	ctrl_outw(TMU1_TCR_INIT, TMU1_TCR);	ctrl_outl(interval, TMU1_TCOR);	ctrl_outl(interval, TMU1_TCNT);	ctrl_outb(ctrl_inb(TMU_TSTR) | 0x2, TMU_TSTR); /* enable timer 1 */	printk("Timer count 1 = 0x%x\n", fast_timer_count());	udelay(1000);	printk("Timer count 2 = 0x%x\n", fast_timer_count());}#endif/****************************************************************************/const char *get_system_type(void){	return "SnapGear SecureEdge5410";}/* * The Machine Vector */struct sh_machine_vector mv_snapgear __initmv = {	.mv_nr_irqs		= 72,	.mv_inb			= snapgear_inb,	.mv_inw			= snapgear_inw,	.mv_inl			= snapgear_inl,	.mv_outb		= snapgear_outb,	.mv_outw		= snapgear_outw,	.mv_outl		= snapgear_outl,	.mv_inb_p		= snapgear_inb_p,	.mv_inw_p		= snapgear_inw,	.mv_inl_p		= snapgear_inl,	.mv_outb_p		= snapgear_outb_p,	.mv_outw_p		= snapgear_outw,	.mv_outl_p		= snapgear_outl,	.mv_isa_port2addr	= snapgear_isa_port2addr,	.mv_init_irq		= init_snapgear_IRQ,};ALIAS_MV(snapgear)/* * Initialize the board */int __init platform_setup(void){	board_time_init = secureedge5410_rtc_init;	return 0;}