arch/arm/mach-at91/at91sam9260.c

   1 /*
   2  * arch/arm/mach-at91/at91sam9260.c
   3  *
   4  *  Copyright (C) 2006 SAN People
   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/at91_dbgu.h>
  16 #include <mach/hardware.h>
  17
  18 #include "soc.h"
  19 #include "generic.h"
  20
  21 /* --------------------------------------------------------------------
  22  *  AT91SAM9260 processor initialization
  23  * -------------------------------------------------------------------- */
  24
  25 static void __init at91sam9xe_map_io(void)
  26 {
  27         unsigned long sram_size;
  28
  29         switch (at91_soc_initdata.cidr & AT91_CIDR_SRAMSIZ) {
  30                 case AT91_CIDR_SRAMSIZ_32K:
  31                         sram_size = 2 * SZ_16K;
  32                         break;
  33                 case AT91_CIDR_SRAMSIZ_16K:
  34                 default:
  35                         sram_size = SZ_16K;
  36         }
  37
  38         at91_init_sram(0, AT91SAM9XE_SRAM_BASE, sram_size);
  39 }
  40
  41 static void __init at91sam9260_map_io(void)
  42 {
  43         if (cpu_is_at91sam9xe())
  44                 at91sam9xe_map_io();
  45         else if (cpu_is_at91sam9g20())
  46                 at91_init_sram(0, AT91SAM9G20_SRAM_BASE, AT91SAM9G20_SRAM_SIZE);
  47         else
  48                 at91_init_sram(0, AT91SAM9260_SRAM_BASE, AT91SAM9260_SRAM_SIZE);
  49 }
  50
  51 static void __init at91sam9260_initialize(void)
  52 {
  53         arm_pm_idle = at91sam9_idle;
  54
  55         at91_sysirq_mask_rtt(AT91SAM9260_BASE_RTT);
  56 }
  57
  58 AT91_SOC_START(at91sam9260)
  59         .map_io = at91sam9260_map_io,
  60         .init = at91sam9260_initialize,
  61 AT91_SOC_END