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 <linux/smsc911x.h>
  31 #include <linux/gpio.h>
  32 #include <mach/common.h>
  33 #include <mach/sh7372.h>
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37
  38 /* MTD */
  39 static struct mtd_partition nor_flash_partitions[] = {
  40         {
  41                 .name           = "loader",
  42                 .offset         = 0x00000000,
  43                 .size           = 512 * 1024,
  44         },
  45         {
  46                 .name           = "bootenv",
  47                 .offset         = MTDPART_OFS_APPEND,
  48                 .size           = 512 * 1024,
  49         },
  50         {
  51                 .name           = "kernel_ro",
  52                 .offset         = MTDPART_OFS_APPEND,
  53                 .size           = 8 * 1024 * 1024,
  54                 .mask_flags     = MTD_WRITEABLE,
  55         },
  56         {
  57                 .name           = "kernel",
  58                 .offset         = MTDPART_OFS_APPEND,
  59                 .size           = 8 * 1024 * 1024,
  60         },
  61         {
  62                 .name           = "data",
  63                 .offset         = MTDPART_OFS_APPEND,
  64                 .size           = MTDPART_SIZ_FULL,
  65         },
  66 };
  67
  68 static struct physmap_flash_data nor_flash_data = {
  69         .width          = 2,
  70         .parts          = nor_flash_partitions,
  71         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
  72 };
  73
  74 static struct resource nor_flash_resources[] = {
  75         [0]     = {
  76                 .start  = 0x00000000,
  77                 .end    = 0x08000000 - 1,
  78                 .flags  = IORESOURCE_MEM,
  79         }
  80 };
  81
  82 static struct platform_device nor_flash_device = {
  83         .name           = "physmap-flash",
  84         .dev            = {
  85                 .platform_data  = &nor_flash_data,
  86         },
  87         .num_resources  = ARRAY_SIZE(nor_flash_resources),
  88         .resource       = nor_flash_resources,
  89 };
  90
  91 /* SMSC 9220 */
  92 static struct resource smc911x_resources[] = {
  93         {
  94                 .start  = 0x14000000,
  95                 .end    = 0x16000000 - 1,
  96                 .flags  = IORESOURCE_MEM,
  97         }, {
  98                 .start  = 6,
  99                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
 100         },
 101 };
 102
 103 static struct smsc911x_platform_config smsc911x_info = {
 104         .flags          = SMSC911X_USE_16BIT | SMSC911X_SAVE_MAC_ADDRESS,
 105         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 106         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
 107 };
 108
 109 static struct platform_device smc911x_device = {
 110         .name           = "smsc911x",
 111         .id             = -1,
 112         .num_resources  = ARRAY_SIZE(smc911x_resources),
 113         .resource       = smc911x_resources,
 114         .dev            = {
 115                 .platform_data = &smsc911x_info,
 116         },
 117 };
 118
 119 static struct platform_device *ap4evb_devices[] __initdata = {
 120         &nor_flash_device,
 121         &smc911x_device,
 122 };
 123
 124 static struct map_desc ap4evb_io_desc[] __initdata = {
 125         /* create a 1:1 entity map for 0xe6xxxxxx
 126          * used by CPGA, INTC and PFC.
 127          */
 128         {
 129                 .virtual        = 0xe6000000,
 130                 .pfn            = __phys_to_pfn(0xe6000000),
 131                 .length         = 256 << 20,
 132                 .type           = MT_DEVICE_NONSHARED
 133         },
 134 };
 135
 136 static void __init ap4evb_map_io(void)
 137 {
 138         iotable_init(ap4evb_io_desc, ARRAY_SIZE(ap4evb_io_desc));
 139
 140         /* setup early devices, clocks and console here as well */
 141         sh7372_add_early_devices();
 142         sh7367_clock_init(); /* use g3 clocks for now */
 143         shmobile_setup_console();
 144 }
 145
 146 static void __init ap4evb_init(void)
 147 {
 148         sh7372_pinmux_init();
 149
 150         /* enable SMSC911X */
 151         gpio_request(GPIO_FN_CS5A,      NULL);
 152         gpio_request(GPIO_FN_IRQ6_39,   NULL);
 153
 154         sh7372_add_standard_devices();
 155
 156         platform_add_devices(ap4evb_devices, ARRAY_SIZE(ap4evb_devices));
 157 }
 158
 159 MACHINE_START(AP4EVB, "ap4evb")
 160         .phys_io        = 0xe6000000,
 161         .io_pg_offst    = ((0xe6000000) >> 18) & 0xfffc,
 162         .map_io         = ap4evb_map_io,
 163         .init_irq       = sh7372_init_irq,
 164         .init_machine   = ap4evb_init,
 165         .timer          = &shmobile_timer,
 166 MACHINE_END