arch/arm/mach-clps711x/p720t-leds.c

   1 /*
   2  *  linux/arch/arm/mach-clps711x/leds.c
   3  *
   4  *  Integrator LED control routines
   5  *
   6  *  Copyright (C) 2000 Deep Blue Solutions Ltd
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22 #include <linux/kernel.h>
  23 #include <linux/init.h>
  24
  25 #include <asm/hardware.h>
  26 #include <asm/io.h>
  27 #include <asm/leds.h>
  28 #include <asm/system.h>
  29 #include <asm/mach-types.h>
  30
  31 #include <asm/hardware/clps7111.h>
  32 #include <asm/hardware/ep7212.h>
  33
  34 static void p720t_leds_event(led_event_t ledevt)
  35 {
  36         unsigned long flags;
  37         u32 pddr;
  38
  39         local_irq_save(flags);
  40         switch(ledevt) {
  41         case led_idle_start:
  42                 break;
  43
  44         case led_idle_end:
  45                 break;
  46
  47         case led_timer:
  48                 pddr = clps_readb(PDDR);
  49                 clps_writeb(pddr ^ 1, PDDR);
  50                 break;
  51
  52         default:
  53                 break;
  54         }
  55
  56         local_irq_restore(flags);
  57 }
  58
  59 static int __init leds_init(void)
  60 {
  61         if (machine_is_p720t())
  62                 leds_event = p720t_leds_event;
  63
  64         return 0;
  65 }
  66
  67 arch_initcall(leds_init);