arch/sh/boards/board-secureedge5410.c

   1 /*
   2  * Copyright (C) 2002  David McCullough <davidm@snapgear.com>
   3  * Copyright (C) 2003  Paul Mundt <lethal@linux-sh.org>
   4  *
   5  * Based on files with the following comments:
   6  *
   7  *           Copyright (C) 2000  Kazumoto Kojima
   8  *
   9  *           Modified for 7751 Solution Engine by
  10  *           Ian da Silva and Jeremy Siegel, 2001.
  11  */
  12 #include <linux/init.h>
  13 #include <linux/irq.h>
  14 #include <linux/interrupt.h>
  15 #include <linux/timer.h>
  16 #include <linux/delay.h>
  17 #include <linux/module.h>
  18 #include <linux/sched.h>
  19 #include <asm/machvec.h>
  20 #include <mach/secureedge5410.h>
  21 #include <asm/irq.h>
  22 #include <asm/io.h>
  23 #include <cpu/timer.h>
  24
  25 unsigned short secureedge5410_ioport;
  26
  27 /*
  28  * EraseConfig handling functions
  29  */
  30 static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id)
  31 {
  32         ctrl_delay();   /* dummy read */
  33
  34         printk("SnapGear: erase switch interrupt!\n");
  35
  36         return IRQ_HANDLED;
  37 }
  38
  39 static int __init eraseconfig_init(void)
  40 {
  41         unsigned int irq = evt2irq(0x240);
  42
  43         printk("SnapGear: EraseConfig init\n");
  44
  45         /* Setup "EraseConfig" switch on external IRQ 0 */
  46         if (request_irq(irq, eraseconfig_interrupt, IRQF_DISABLED,
  47                                 "Erase Config", NULL))
  48                 printk("SnapGear: failed to register IRQ%d for Reset witch\n",
  49                                 irq);
  50         else
  51                 printk("SnapGear: registered EraseConfig switch on IRQ%d\n",
  52                                 irq);
  53         return 0;
  54 }
  55 module_init(eraseconfig_init);
  56
  57 /*
  58  * Initialize IRQ setting
  59  *
  60  * IRL0 = erase switch
  61  * IRL1 = eth0
  62  * IRL2 = eth1
  63  * IRL3 = crypto
  64  */
  65 static void __init init_snapgear_IRQ(void)
  66 {
  67         printk("Setup SnapGear IRQ/IPR ...\n");
  68         /* enable individual interrupt mode for externals */
  69         plat_irq_setup_pins(IRQ_MODE_IRQ);
  70 }
  71
  72 /*
  73  * The Machine Vector
  74  */
  75 static struct sh_machine_vector mv_snapgear __initmv = {
  76         .mv_name                = "SnapGear SecureEdge5410",
  77         .mv_nr_irqs             = 72,
  78         .mv_init_irq            = init_snapgear_IRQ,
  79 };