[mirror_ubuntu-focal-kernel.git] / arch / sh / boards / snapgear / setup.c

/*
 * 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>
#include <asm/snapgear.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/rtc.h>
#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)
{
	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, IRQF_DISABLED,
				"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 struct ipr_data ipr_irq_table[] = {
	{ IRL0_IRQ, 0, IRL0_IPR_POS, IRL0_PRIORITY },
	{ IRL1_IRQ, 0, IRL1_IPR_POS, IRL1_PRIORITY },
	{ IRL2_IRQ, 0, IRL2_IPR_POS, IRL2_PRIORITY },
	{ IRL3_IRQ, 0, IRL3_IPR_POS, IRL3_PRIORITY },
};

static unsigned long ipr_offsets[] = {
	INTC_IPRD,
};

static struct ipr_desc ipr_irq_desc = {
	.ipr_offsets	= ipr_offsets,
	.nr_offsets	= ARRAY_SIZE(ipr_offsets),

	.ipr_data	= ipr_irq_table,
	.nr_irqs	= ARRAY_SIZE(ipr_irq_table),

	.chip = {
		.name	= "IPR-snapgear",
	},
};

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");

	register_ipr_controller(&ipr_irq_desc);
}

/*
 * Initialize the board
 */
static void __init snapgear_setup(char **cmdline_p)
{
	board_time_init = secureedge5410_rtc_init;
}

/*
 * The Machine Vector
 */
static struct sh_machine_vector mv_snapgear __initmv = {
	.mv_name		= "SnapGear SecureEdge5410",
	.mv_setup		= snapgear_setup,
	.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,
};
Commit	Line	Data
373e68b5	1	/*
1da177e4 LT	2	* linux/arch/sh/boards/snapgear/setup.c
	3	*
	4	* Copyright (C) 2002 David McCullough <davidm@snapgear.com>
	5	* Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org>
	6	*
	7	* Based on files with the following comments:
	8	*
	9	* Copyright (C) 2000 Kazumoto Kojima
	10	*
	11	* Modified for 7751 Solution Engine by
	12	* Ian da Silva and Jeremy Siegel, 2001.
	13	*/
1da177e4 LT	14	#include <linux/init.h>
	15	#include <linux/irq.h>
	16	#include <linux/interrupt.h>
	17	#include <linux/timer.h>
	18	#include <linux/delay.h>
	19	#include <linux/module.h>
	20	#include <linux/sched.h>
1da177e4	21	#include <asm/machvec.h>
373e68b5	22	#include <asm/snapgear.h>
1da177e4 LT	23	#include <asm/irq.h>
1da177e4 LT	24	#include <asm/io.h>
373e68b5	25	#include <asm/rtc.h>
1da177e4 LT	26	#include <asm/cpu/timer.h>
1da177e4 LT	27
1da177e4 LT	28	extern void secureedge5410_rtc_init(void);
	29	extern void pcibios_init(void);
	30
	31	/****************************************************************************/
	32	/*
	33	* EraseConfig handling functions
	34	*/
	35
35f3c518	36	static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id)
1da177e4 LT	37	{
	38	volatile char dummy __attribute__((unused)) = * (volatile char *) 0xb8000000;
	39
	40	printk("SnapGear: erase switch interrupt!\n");
	41
	42	return IRQ_HANDLED;
	43	}
	44
	45	static int __init eraseconfig_init(void)
	46	{
	47	printk("SnapGear: EraseConfig init\n");
	48	/* Setup "EraseConfig" switch on external IRQ 0 */
6d20819f	49	if (request_irq(IRL0_IRQ, eraseconfig_interrupt, IRQF_DISABLED,
1da177e4 LT	50	"Erase Config", NULL))
	51	printk("SnapGear: failed to register IRQ%d for Reset witch\n",
	52	IRL0_IRQ);
	53	else
	54	printk("SnapGear: registered EraseConfig switch on IRQ%d\n",
	55	IRL0_IRQ);
	56	return(0);
	57	}
	58
	59	module_init(eraseconfig_init);
	60
	61	/****************************************************************************/
	62	/*
	63	* Initialize IRQ setting
	64	*
	65	* IRL0 = erase switch
	66	* IRL1 = eth0
	67	* IRL2 = eth1
	68	* IRL3 = crypto
	69	*/
	70
68abdbbb MD	71	static struct ipr_data ipr_irq_table[] = {
	72	{ IRL0_IRQ, 0, IRL0_IPR_POS, IRL0_PRIORITY },
	73	{ IRL1_IRQ, 0, IRL1_IPR_POS, IRL1_PRIORITY },
	74	{ IRL2_IRQ, 0, IRL2_IPR_POS, IRL2_PRIORITY },
	75	{ IRL3_IRQ, 0, IRL3_IPR_POS, IRL3_PRIORITY },
	76	};
	77
	78	static unsigned long ipr_offsets[] = {
	79	INTC_IPRD,
	80	};
	81
	82	static struct ipr_desc ipr_irq_desc = {
	83	.ipr_offsets = ipr_offsets,
	84	.nr_offsets = ARRAY_SIZE(ipr_offsets),
	85
	86	.ipr_data = ipr_irq_table,
	87	.nr_irqs = ARRAY_SIZE(ipr_irq_table),
	88
	89	.chip = {
	90	.name = "IPR-snapgear",
	91	},
bd71ab88 JL	92	};
bd71ab88 JL	93
1da177e4 LT	94	static void __init init_snapgear_IRQ(void)
	95	{
	96	/* enable individual interrupt mode for externals */
	97	ctrl_outw(ctrl_inw(INTC_ICR) \| INTC_ICR_IRLM, INTC_ICR);
	98
	99	printk("Setup SnapGear IRQ/IPR ...\n");
	100
68abdbbb	101	register_ipr_controller(&ipr_irq_desc);
1da177e4 LT	102	}
1da177e4 LT	103
2c7834a6 PM	104	/*
	105	* Initialize the board
	106	*/
	107	static void __init snapgear_setup(char **cmdline_p)
1da177e4	108	{
2c7834a6	109	board_time_init = secureedge5410_rtc_init;
1da177e4 LT	110	}
	111
	112	/*
	113	* The Machine Vector
	114	*/
82f81f47	115	static struct sh_machine_vector mv_snapgear __initmv = {
2c7834a6 PM	116	.mv_name = "SnapGear SecureEdge5410",
2c7834a6 PM	117	.mv_setup = snapgear_setup,
1da177e4 LT	118	.mv_nr_irqs = 72,
	119
	120	.mv_inb = snapgear_inb,
	121	.mv_inw = snapgear_inw,
	122	.mv_inl = snapgear_inl,
	123	.mv_outb = snapgear_outb,
	124	.mv_outw = snapgear_outw,
	125	.mv_outl = snapgear_outl,
	126
	127	.mv_inb_p = snapgear_inb_p,
	128	.mv_inw_p = snapgear_inw,
	129	.mv_inl_p = snapgear_inl,
	130	.mv_outb_p = snapgear_outb_p,
	131	.mv_outw_p = snapgear_outw,
	132	.mv_outl_p = snapgear_outl,
	133
1da177e4 LT	134	.mv_init_irq = init_snapgear_IRQ,
1da177e4 LT	135	};