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                7
  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 physmap_flash_data
  83 ifxmips_mtd_data = {
  84         .width    = 2,
  85 };
  86
  87 static struct resource
  88 ifxmips_mtd_resource = {
  89         .start  = IFXMIPS_FLASH_START,
  90         .end    = IFXMIPS_FLASH_START + IFXMIPS_FLASH_MAX - 1,
  91         .flags  = IORESOURCE_MEM,
  92 };
  93
  94 static struct platform_device
  95 ifxmips_mtd[] =
  96 {
  97         {
  98                 .id = 0,
  99                 .name = "ifxmips_mtd",
 100                 .dev = {
 101                         .platform_data = &ifxmips_mtd_data,
 102                 },
 103                 .num_resources  = 1,
 104                 .resource   = &ifxmips_mtd_resource,
 105         },
 106 };
 107
 108 #ifdef CONFIG_GPIO_DEVICE
 109 static struct resource
 110 ifxmips_gpio_dev_resources[] = {
 111         {
 112                 .name = "gpio",
 113                 .flags  = 0,
 114                 .start = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) |
 115                         (1 << 4) | (1 << 5) | (1 << 8) | (1 << 9) | (1 << 12),
 116                 .end = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) |
 117                         (1 << 4) | (1 << 5) | (1 << 8) | (1 << 9) | (1 << 12),
 118         },
 119 };
 120
 121 static struct platform_device
 122 ifxmips_gpio_dev[] = {
 123         {
 124                 .name     = "GPIODEV",
 125                 .id     = -1,
 126                 .num_resources    = ARRAY_SIZE(ifxmips_gpio_dev_resources),
 127                 .resource   = ifxmips_gpio_dev_resources,
 128         }
 129 };
 130 #endif
 131
 132 const char*
 133 get_system_type(void)
 134 {
 135         chiprev = ifxmips_r32(IFXMIPS_MPS_CHIPID);
 136         switch(chiprev)
 137         {
 138         case BOARD_DANUBE_CHIPID:
 139                 return BOARD_DANUBE;
 140
 141         case BOARD_TWINPASS_CHIPID:
 142                 return BOARD_TWINPASS;
 143         }
 144
 145         return BOARD_SYSTEM_TYPE;
 146 }
 147
 148 int __init
 149 ifxmips_init_devices(void)
 150 {
 151         int dev = 0;
 152
 153         ifxmips_devs[dev++] = ifxmips_led;
 154         ifxmips_devs[dev++] = ifxmips_gpio;
 155         ifxmips_devs[dev++] = ifxmips_mii;
 156         ifxmips_devs[dev++] = ifxmips_mtd;
 157         ifxmips_devs[dev++] = ifxmips_wdt;
 158 #ifdef CONFIG_GPIO_DEVICE
 159         ifxmips_devs[dev++] = ifxmips_gpio_dev;
 160 #endif
 161         return platform_add_devices(ifxmips_devs, dev);
 162 }
 163
 164 arch_initcall(ifxmips_init_devices);