arch/arm/mach-clps711x/common.c

   1 /*
   2  *  linux/arch/arm/mach-clps711x/core.c
   3  *
   4  *  Core support for the CLPS711x-based machines.
   5  *
   6  *  Copyright (C) 2001,2011 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
  23 #include <linux/init.h>
  24 #include <linux/sizes.h>
  25
  26 #include <asm/mach/map.h>
  27 #include <asm/system_misc.h>
  28
  29 #include <mach/hardware.h>
  30
  31 #include "common.h"
  32
  33 /*
  34  * This maps the generic CLPS711x registers
  35  */
  36 static struct map_desc clps711x_io_desc[] __initdata = {
  37         {
  38                 .virtual        = (unsigned long)CLPS711X_VIRT_BASE,
  39                 .pfn            = __phys_to_pfn(CLPS711X_PHYS_BASE),
  40                 .length         = 48 * SZ_1K,
  41                 .type           = MT_DEVICE,
  42         }
  43 };
  44
  45 void __init clps711x_map_io(void)
  46 {
  47         iotable_init(clps711x_io_desc, ARRAY_SIZE(clps711x_io_desc));
  48 }
  49
  50 void __init clps711x_init_irq(void)
  51 {
  52         clps711x_intc_init(CLPS711X_PHYS_BASE, SZ_16K);
  53 }
  54
  55 void __init clps711x_timer_init(void)
  56 {
  57         clps711x_clk_init(CLPS711X_VIRT_BASE);
  58         clps711x_clksrc_init(CLPS711X_VIRT_BASE + TC1D,
  59                              CLPS711X_VIRT_BASE + TC2D, IRQ_TC2OI);
  60 }
  61
  62 void clps711x_restart(enum reboot_mode mode, const char *cmd)
  63 {
  64         soft_restart(0);
  65 }