Pileus Git - ~andy/linux/blob - arch/arm/mach-shmobile/board-ap4evb.c

   1 /*
   2  * AP4EVB board support
   3  *
   4  * Copyright (C) 2010  Magnus Damm
   5  * Copyright (C) 2008  Yoshihiro Shimoda
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20 #include <linux/kernel.h>
  21 #include <linux/init.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/irq.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/delay.h>
  26 #include <linux/mtd/mtd.h>
  27 #include <linux/mtd/partitions.h>
  28 #include <linux/mtd/physmap.h>
  29 #include <linux/io.h>
  30 #include <mach/common.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34
  35 static struct mtd_partition nor_flash_partitions[] = {
  36         {
  37                 .name           = "loader",
  38                 .offset         = 0x00000000,
  39                 .size           = 512 * 1024,
  40         },
  41         {
  42                 .name           = "bootenv",
  43                 .offset         = MTDPART_OFS_APPEND,
  44                 .size           = 512 * 1024,
  45         },
  46         {
  47                 .name           = "kernel_ro",
  48                 .offset         = MTDPART_OFS_APPEND,
  49                 .size           = 8 * 1024 * 1024,
  50                 .mask_flags     = MTD_WRITEABLE,
  51         },
  52         {
  53                 .name           = "kernel",
  54                 .offset         = MTDPART_OFS_APPEND,
  55                 .size           = 8 * 1024 * 1024,
  56         },
  57         {
  58                 .name           = "data",
  59                 .offset         = MTDPART_OFS_APPEND,
  60                 .size           = MTDPART_SIZ_FULL,
  61         },
  62 };
  63
  64 static struct physmap_flash_data nor_flash_data = {
  65         .width          = 2,
  66         .parts          = nor_flash_partitions,
  67         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
  68 };
  69
  70 static struct resource nor_flash_resources[] = {
  71         [0]     = {
  72                 .start  = 0x00000000,
  73                 .end    = 0x08000000 - 1,
  74                 .flags  = IORESOURCE_MEM,
  75         }
  76 };
  77
  78 static struct platform_device nor_flash_device = {
  79         .name           = "physmap-flash",
  80         .dev            = {
  81                 .platform_data  = &nor_flash_data,
  82         },
  83         .num_resources  = ARRAY_SIZE(nor_flash_resources),
  84         .resource       = nor_flash_resources,
  85 };
  86
  87
  88 static struct platform_device *ap4evb_devices[] __initdata = {
  89         &nor_flash_device,
  90 };
  91
  92 static struct map_desc ap4evb_io_desc[] __initdata = {
  93         /* create a 1:1 entity map for 0xe6xxxxxx
  94          * used by CPGA, INTC and PFC.
  95          */
  96         {
  97                 .virtual        = 0xe6000000,
  98                 .pfn            = __phys_to_pfn(0xe6000000),
  99                 .length         = 256 << 20,
 100                 .type           = MT_DEVICE_NONSHARED
 101         },
 102 };
 103
 104 static void __init ap4evb_map_io(void)
 105 {
 106         iotable_init(ap4evb_io_desc, ARRAY_SIZE(ap4evb_io_desc));
 107
 108         /* setup early devices and clocks here as well */
 109         sh7372_add_early_devices();
 110         sh7367_clock_init(); /* use g3 clocks for now */
 111 }
 112
 113 static void __init ap4evb_init(void)
 114 {
 115         sh7372_add_standard_devices();
 116
 117         platform_add_devices(ap4evb_devices, ARRAY_SIZE(ap4evb_devices));
 118 }
 119
 120 MACHINE_START(AP4EVB, "ap4evb")
 121         .phys_io        = 0xe6000000,
 122         .io_pg_offst    = ((0xe6000000) >> 18) & 0xfffc,
 123         .map_io         = ap4evb_map_io,
 124         .init_irq       = sh7372_init_irq,
 125         .init_machine   = ap4evb_init,
 126         .timer          = &shmobile_timer,
 127 MACHINE_END