target/linux/ifxmips/files/arch/mips/ifxmips/board.c

   1 /*
   2  *   This program is free software; you can redistribute it and/or modify
   3  *   it under the terms of the GNU General Public License as published by
   4  *   the Free Software Foundation; either version 2 of the License, or
   5  *   (at your option) any later version.
   6  *
   7  *   This program is distributed in the hope that it will be useful,
   8  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  *   GNU General Public License for more details.
  11  *
  12  *   You should have received a copy of the GNU General Public License
  13  *   along with this program; if not, write to the Free Software
  14  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  15  *
  16  *   Copyright (C) 2007 John Crispin <blogic@openwrt.org>
  17  */
  18
  19 #include <linux/autoconf.h>
  20 #include <linux/init.h>
  21 #include <linux/module.h>
  22 #include <linux/types.h>
  23 #include <linux/string.h>
  24 #include <linux/mtd/physmap.h>
  25 #include <linux/kernel.h>
  26 #include <linux/reboot.h>
  27 #include <linux/platform_device.h>
  28 #include <asm/bootinfo.h>
  29 #include <asm/reboot.h>
  30 #include <asm/time.h>
  31 #include <asm/irq.h>
  32 #include <asm/io.h>
  33 #include <asm/ifxmips/ifxmips.h>
  34
  35 #define MAX_IFXMIPS_DEVS                9
  36
  37 #define BOARD_DANUBE                    "Danube"
  38 #define BOARD_DANUBE_CHIPID             0x10129083
  39
  40 #define BOARD_TWINPASS                  "Twinpass"
  41 #define BOARD_TWINPASS_CHIPID   0x3012D083
  42
  43 static unsigned int chiprev;
  44 static struct platform_device *ifxmips_devs[MAX_IFXMIPS_DEVS];
  45
  46 static struct platform_device
  47 ifxmips_led[] =
  48 {
  49         {
  50                 .id = 0,
  51                 .name = "ifxmips_led",
  52         },
  53 };
  54
  55 static struct platform_device
  56 ifxmips_gpio[] =
  57 {
  58         {
  59                 .id = 0,
  60                 .name = "ifxmips_gpio",
  61         },
  62 };
  63
  64 static struct platform_device
  65 ifxmips_mii[] =
  66 {
  67         {
  68                 .id = 0,
  69                 .name = "ifxmips_mii0",
  70         },
  71 };
  72
  73 static struct platform_device
  74 ifxmips_wdt[] =
  75 {
  76         {
  77                 .id = 0,
  78                 .name = "ifxmips_wdt",
  79         },
  80 };
  81
  82 static struct platform_device
  83 ifxmips_asc0[] =
  84 {
  85         {
  86                 .id = 0,
  87                 .name = "ifxmips_asc",
  88         },
  89 };
  90
  91 static struct platform_device
  92 ifxmips_asc1[] =
  93 {
  94         {
  95                 .id = 1,
  96                 .name = "ifxmips_asc",
  97         },
  98 };
  99
 100 static struct physmap_flash_data
 101 ifxmips_mtd_data = {
 102         .width    = 2,
 103 };
 104
 105 static struct resource
 106 ifxmips_mtd_resource = {
 107         .start  = IFXMIPS_FLASH_START,
 108         .end    = IFXMIPS_FLASH_START + IFXMIPS_FLASH_MAX - 1,
 109         .flags  = IORESOURCE_MEM,
 110 };
 111
 112 static struct platform_device
 113 ifxmips_mtd[] =
 114 {
 115         {
 116                 .id = 0,
 117                 .name = "ifxmips_mtd",
 118                 .dev = {
 119                         .platform_data = &ifxmips_mtd_data,
 120                 },
 121                 .num_resources  = 1,
 122                 .resource   = &ifxmips_mtd_resource,
 123         },
 124 };
 125
 126 #ifdef CONFIG_GPIO_DEVICE
 127 static struct resource
 128 ifxmips_gpio_dev_resources[] = {
 129         {
 130                 .name = "gpio",
 131                 .flags  = 0,
 132                 .start = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) |
 133                         (1 << 4) | (1 << 5) | (1 << 8) | (1 << 9) | (1 << 12),
 134                 .end = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) |
 135                         (1 << 4) | (1 << 5) | (1 << 8) | (1 << 9) | (1 << 12),
 136         },
 137 };
 138
 139 static struct platform_device
 140 ifxmips_gpio_dev[] = {
 141         {
 142                 .name     = "GPIODEV",
 143                 .id     = -1,
 144                 .num_resources    = ARRAY_SIZE(ifxmips_gpio_dev_resources),
 145                 .resource   = ifxmips_gpio_dev_resources,
 146         }
 147 };
 148 #endif
 149
 150 const char*
 151 get_system_type(void)
 152 {
 153         chiprev = ifxmips_r32(IFXMIPS_MPS_CHIPID);
 154         switch(chiprev)
 155         {
 156         case BOARD_DANUBE_CHIPID:
 157                 return BOARD_DANUBE;
 158
 159         case BOARD_TWINPASS_CHIPID:
 160                 return BOARD_TWINPASS;
 161         }
 162
 163         return BOARD_SYSTEM_TYPE;
 164 }
 165
 166 int __init
 167 ifxmips_init_devices(void)
 168 {
 169         int dev = 0;
 170
 171         ifxmips_devs[dev++] = ifxmips_led;
 172         ifxmips_devs[dev++] = ifxmips_gpio;
 173         ifxmips_devs[dev++] = ifxmips_mii;
 174         ifxmips_devs[dev++] = ifxmips_mtd;
 175         ifxmips_devs[dev++] = ifxmips_wdt;
 176         //ifxmips_devs[dev++] = ifxmips_asc0;
 177         ifxmips_devs[dev++] = ifxmips_asc1;
 178 #ifdef CONFIG_GPIO_DEVICE
 179         ifxmips_devs[dev++] = ifxmips_gpio_dev;
 180 #endif
 181         return platform_add_devices(ifxmips_devs, dev);
 182 }
 183
 184 arch_initcall(ifxmips_init_devices);