arch/arm/mach-at91/setup.c

   1 /*
   2  * Copyright (C) 2007 Atmel Corporation.
   3  * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
   4  *
   5  * Under GPLv2
   6  */
   7
   8 #include <linux/module.h>
   9 #include <linux/io.h>
  10
  11 #include <asm/mach/map.h>
  12
  13 #include <mach/hardware.h>
  14 #include <mach/cpu.h>
  15
  16 #include "soc.h"
  17 #include "generic.h"
  18
  19 struct at91_soc __initdata at91_boot_soc;
  20
  21 static struct map_desc at91_io_desc __initdata = {
  22         .virtual        = AT91_VA_BASE_SYS,
  23         .pfn            = __phys_to_pfn(AT91_BASE_SYS),
  24         .length         = SZ_16K,
  25         .type           = MT_DEVICE,
  26 };
  27
  28 void __init at91_map_io(void)
  29 {
  30         /* Map peripherals */
  31         iotable_init(&at91_io_desc, 1);
  32
  33         if (cpu_is_at91cap9())
  34                 at91_boot_soc = at91cap9_soc;
  35         else if (cpu_is_at91rm9200())
  36                 at91_boot_soc = at91rm9200_soc;
  37         else if (cpu_is_at91sam9260())
  38                 at91_boot_soc = at91sam9260_soc;
  39         else if (cpu_is_at91sam9261())
  40                 at91_boot_soc = at91sam9261_soc;
  41         else if (cpu_is_at91sam9263())
  42                 at91_boot_soc = at91sam9263_soc;
  43         else if (cpu_is_at91sam9g10())
  44                 at91_boot_soc = at91sam9261_soc;
  45         else if (cpu_is_at91sam9g20())
  46                 at91_boot_soc = at91sam9260_soc;
  47         else if (cpu_is_at91sam9g45())
  48                 at91_boot_soc = at91sam9g45_soc;
  49         else if (cpu_is_at91sam9rl())
  50                 at91_boot_soc = at91sam9rl_soc;
  51         else if (cpu_is_at91sam9x5())
  52                 at91_boot_soc = at91sam9x5_soc;
  53         else
  54                 panic("Impossible to detect the SOC type");
  55
  56         if (at91_boot_soc.map_io)
  57                 at91_boot_soc.map_io();
  58 }
  59
  60 void __init at91_initialize(unsigned long main_clock)
  61 {
  62         at91_boot_soc.init(main_clock);
  63 }