arch/arm/mach-shmobile/setup-sh73a0.c

   1 /*
   2  * sh73a0 processor support
   3  *
   4  * Copyright (C) 2010  Takashi Yoshii
   5  * Copyright (C) 2010  Magnus Damm
   6  * Copyright (C) 2008  Yoshihiro Shimoda
   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; version 2 of the License.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  */
  17 #include <linux/kernel.h>
  18 #include <linux/init.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/irq.h>
  21 #include <linux/of_platform.h>
  22 #include <linux/delay.h>
  23 #include <linux/input.h>
  24 #include <linux/io.h>
  25
  26 #include <asm/hardware/cache-l2x0.h>
  27 #include <asm/mach/map.h>
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/time.h>
  30
  31 #include "common.h"
  32 #include "sh73a0.h"
  33
  34 static struct map_desc sh73a0_io_desc[] __initdata = {
  35         /* create a 1:1 identity mapping for 0xe6xxxxxx
  36          * used by CPGA, INTC and PFC.
  37          */
  38         {
  39                 .virtual        = 0xe6000000,
  40                 .pfn            = __phys_to_pfn(0xe6000000),
  41                 .length         = 256 << 20,
  42                 .type           = MT_DEVICE_NONSHARED
  43         },
  44 };
  45
  46 static void __init sh73a0_map_io(void)
  47 {
  48         debug_ll_io_init();
  49         iotable_init(sh73a0_io_desc, ARRAY_SIZE(sh73a0_io_desc));
  50 }
  51
  52 static void __init sh73a0_generic_init(void)
  53 {
  54 #ifdef CONFIG_CACHE_L2X0
  55         /* Shared attribute override enable, 64K*8way */
  56         l2x0_init(IOMEM(0xf0100000), 0x00400000, 0xc20f0fff);
  57 #endif
  58         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
  59 }
  60
  61 static const char *const sh73a0_boards_compat_dt[] __initconst = {
  62         "renesas,sh73a0",
  63         NULL,
  64 };
  65
  66 DT_MACHINE_START(SH73A0_DT, "Generic SH73A0 (Flattened Device Tree)")
  67         .smp            = smp_ops(sh73a0_smp_ops),
  68         .map_io         = sh73a0_map_io,
  69         .init_early     = shmobile_init_delay,
  70         .init_machine   = sh73a0_generic_init,
  71         .init_late      = shmobile_init_late,
  72         .dt_compat      = sh73a0_boards_compat_dt,
  73 MACHINE_END