arch/arm/mach-at91/at91sam9g45.c

   1 /*
   2  *  Chip-specific setup code for the AT91SAM9G45 family
   3  *
   4  *  Copyright (C) 2009 Atmel Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  */
  12
  13 #include <asm/system_misc.h>
  14 #include <mach/cpu.h>
  15 #include <mach/hardware.h>
  16
  17 #include "soc.h"
  18 #include "generic.h"
  19
  20 /* --------------------------------------------------------------------
  21  *  AT91SAM9G45 processor initialization
  22  * -------------------------------------------------------------------- */
  23
  24 static void __init at91sam9g45_map_io(void)
  25 {
  26         at91_init_sram(0, AT91SAM9G45_SRAM_BASE, AT91SAM9G45_SRAM_SIZE);
  27 }
  28
  29 static void __init at91sam9g45_initialize(void)
  30 {
  31         arm_pm_idle = at91sam9_idle;
  32
  33         at91_sysirq_mask_rtc(AT91SAM9G45_BASE_RTC);
  34         at91_sysirq_mask_rtt(AT91SAM9G45_BASE_RTT);
  35 }
  36
  37 static void __init at91sam9g45_init_time(void)
  38 {
  39         at91sam926x_pit_init(NR_IRQS_LEGACY + AT91_ID_SYS);
  40 }
  41
  42 AT91_SOC_START(at91sam9g45)
  43         .map_io = at91sam9g45_map_io,
  44         .init = at91sam9g45_initialize,
  45         .init_time = at91sam9g45_init_time,
  46 AT91_SOC_END