setup.c 2.9 KB
Newer Older
1
/*
L
Linus Torvalds 已提交
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
 * 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/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>
22
#include <asm/snapgear.h>
L
Linus Torvalds 已提交
23 24
#include <asm/irq.h>
#include <asm/io.h>
25
#include <asm/rtc.h>
L
Linus Torvalds 已提交
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
#include <asm/cpu/timer.h>

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 */
49
	if (request_irq(IRL0_IRQ, eraseconfig_interrupt, IRQF_DISABLED,
L
Linus Torvalds 已提交
50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124
				"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);
}

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_init_irq		= init_snapgear_IRQ,
};
ALIAS_MV(snapgear)

/*
 * Initialize the board
 */

int __init platform_setup(void)
{
	board_time_init = secureedge5410_rtc_init;

	return 0;
}