release/src-rt-6.x.4708/linux/linux-2.6.36/arch/mips/alchemy/mtx-1/platform.c

   1 /*
   2  * MTX-1 platform devices registration
   3  *
   4  * Copyright (C) 2007-2009, Florian Fainelli <florian@openwrt.org>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  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
  21 #include <linux/init.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/leds.h>
  24 #include <linux/gpio.h>
  25 #include <linux/gpio_keys.h>
  26 #include <linux/input.h>
  27 #include <linux/mtd/partitions.h>
  28 #include <linux/mtd/physmap.h>
  29 #include <mtd/mtd-abi.h>
  30
  31 #include <asm/mach-au1x00/au1xxx_eth.h>
  32
  33 static struct gpio_keys_button mtx1_gpio_button[] = {
  34         {
  35                 .gpio = 207,
  36                 .code = BTN_0,
  37                 .desc = "System button",
  38         }
  39 };
  40
  41 static struct gpio_keys_platform_data mtx1_buttons_data = {
  42         .buttons = mtx1_gpio_button,
  43         .nbuttons = ARRAY_SIZE(mtx1_gpio_button),
  44 };
  45
  46 static struct platform_device mtx1_button = {
  47         .name = "gpio-keys",
  48         .id = -1,
  49         .dev = {
  50                 .platform_data = &mtx1_buttons_data,
  51         }
  52 };
  53
  54 static struct resource mtx1_wdt_res[] = {
  55         [0] = {
  56                 .start  = 15,
  57                 .end    = 15,
  58                 .name   = "mtx1-wdt-gpio",
  59                 .flags  = IORESOURCE_IRQ,
  60         }
  61 };
  62
  63 static struct platform_device mtx1_wdt = {
  64         .name = "mtx1-wdt",
  65         .id = 0,
  66         .num_resources = ARRAY_SIZE(mtx1_wdt_res),
  67         .resource = mtx1_wdt_res,
  68 };
  69
  70 static struct gpio_led default_leds[] = {
  71         {
  72                 .name   = "mtx1:green",
  73                 .gpio = 211,
  74         }, {
  75                 .name = "mtx1:red",
  76                 .gpio = 212,
  77         },
  78 };
  79
  80 static struct gpio_led_platform_data mtx1_led_data = {
  81         .num_leds = ARRAY_SIZE(default_leds),
  82         .leds = default_leds,
  83 };
  84
  85 static struct platform_device mtx1_gpio_leds = {
  86         .name = "leds-gpio",
  87         .id = -1,
  88         .dev = {
  89                 .platform_data = &mtx1_led_data,
  90         }
  91 };
  92
  93 static struct mtd_partition mtx1_mtd_partitions[] = {
  94         {
  95                 .name   = "filesystem",
  96                 .size   = 0x01C00000,
  97                 .offset = 0,
  98         },
  99         {
 100                 .name   = "yamon",
 101                 .size   = 0x00100000,
 102                 .offset = MTDPART_OFS_APPEND,
 103                 .mask_flags = MTD_WRITEABLE,
 104         },
 105         {
 106                 .name   = "kernel",
 107                 .size   = 0x002c0000,
 108                 .offset = MTDPART_OFS_APPEND,
 109         },
 110         {
 111                 .name   = "yamon env",
 112                 .size   = 0x00040000,
 113                 .offset = MTDPART_OFS_APPEND,
 114         },
 115 };
 116
 117 static struct physmap_flash_data mtx1_flash_data = {
 118         .width          = 4,
 119         .nr_parts       = 4,
 120         .parts          = mtx1_mtd_partitions,
 121 };
 122
 123 static struct resource mtx1_mtd_resource = {
 124         .start  = 0x1e000000,
 125         .end    = 0x1fffffff,
 126         .flags  = IORESOURCE_MEM,
 127 };
 128
 129 static struct platform_device mtx1_mtd = {
 130         .name           = "physmap-flash",
 131         .dev            = {
 132                 .platform_data  = &mtx1_flash_data,
 133         },
 134         .num_resources  = 1,
 135         .resource       = &mtx1_mtd_resource,
 136 };
 137
 138 static struct __initdata platform_device * mtx1_devs[] = {
 139         &mtx1_gpio_leds,
 140         &mtx1_wdt,
 141         &mtx1_button,
 142         &mtx1_mtd,
 143 };
 144
 145 static struct au1000_eth_platform_data mtx1_au1000_eth0_pdata = {
 146         .phy_search_highest_addr        = 1,
 147         .phy1_search_mac0               = 1,
 148 };
 149
 150 static int __init mtx1_register_devices(void)
 151 {
 152         int rc;
 153
 154         au1xxx_override_eth_cfg(0, &mtx1_au1000_eth0_pdata);
 155
 156         rc = gpio_request(mtx1_gpio_button[0].gpio,
 157                                         mtx1_gpio_button[0].desc);
 158         if (rc < 0) {
 159                 printk(KERN_INFO "mtx1: failed to request %d\n",
 160                                         mtx1_gpio_button[0].gpio);
 161                 goto out;
 162         }
 163         gpio_direction_input(mtx1_gpio_button[0].gpio);
 164 out:
 165         return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
 166 }
 167
 168 arch_initcall(mtx1_register_devices);