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 static struct gpio_keys_button mtx1_gpio_button[] = {
  32         {
  33                 .gpio = 207,
  34                 .code = BTN_0,
  35                 .desc = "System button",
  36         }
  37 };
  38
  39 static struct gpio_keys_platform_data mtx1_buttons_data = {
  40         .buttons = mtx1_gpio_button,
  41         .nbuttons = ARRAY_SIZE(mtx1_gpio_button),
  42 };
  43
  44 static struct platform_device mtx1_button = {
  45         .name = "gpio-keys",
  46         .id = -1,
  47         .dev = {
  48                 .platform_data = &mtx1_buttons_data,
  49         }
  50 };
  51
  52 static struct resource mtx1_wdt_res[] = {
  53         [0] = {
  54                 .start  = 15,
  55                 .end    = 15,
  56                 .name   = "mtx1-wdt-gpio",
  57                 .flags  = IORESOURCE_IRQ,
  58         }
  59 };
  60
  61 static struct platform_device mtx1_wdt = {
  62         .name = "mtx1-wdt",
  63         .id = 0,
  64         .num_resources = ARRAY_SIZE(mtx1_wdt_res),
  65         .resource = mtx1_wdt_res,
  66 };
  67
  68 static struct gpio_led default_leds[] = {
  69         {
  70                 .name   = "mtx1:green",
  71                 .gpio = 211,
  72         }, {
  73                 .name = "mtx1:red",
  74                 .gpio = 212,
  75         },
  76 };
  77
  78 static struct gpio_led_platform_data mtx1_led_data = {
  79         .num_leds = ARRAY_SIZE(default_leds),
  80         .leds = default_leds,
  81 };
  82
  83 static struct platform_device mtx1_gpio_leds = {
  84         .name = "leds-gpio",
  85         .id = -1,
  86         .dev = {
  87                 .platform_data = &mtx1_led_data,
  88         }
  89 };
  90
  91 static struct mtd_partition mtx1_mtd_partitions[] = {
  92         {
  93                 .name   = "filesystem",
  94                 .size   = 0x01C00000,
  95                 .offset = 0,
  96         },
  97         {
  98                 .name   = "yamon",
  99                 .size   = 0x00100000,
 100                 .offset = MTDPART_OFS_APPEND,
 101                 .mask_flags = MTD_WRITEABLE,
 102         },
 103         {
 104                 .name   = "kernel",
 105                 .size   = 0x002c0000,
 106                 .offset = MTDPART_OFS_APPEND,
 107         },
 108         {
 109                 .name   = "yamon env",
 110                 .size   = 0x00040000,
 111                 .offset = MTDPART_OFS_APPEND,
 112         },
 113 };
 114
 115 static struct physmap_flash_data mtx1_flash_data = {
 116         .width          = 4,
 117         .nr_parts       = 4,
 118         .parts          = mtx1_mtd_partitions,
 119 };
 120
 121 static struct resource mtx1_mtd_resource = {
 122         .start  = 0x1e000000,
 123         .end    = 0x1fffffff,
 124         .flags  = IORESOURCE_MEM,
 125 };
 126
 127 static struct platform_device mtx1_mtd = {
 128         .name           = "physmap-flash",
 129         .dev            = {
 130                 .platform_data  = &mtx1_flash_data,
 131         },
 132         .num_resources  = 1,
 133         .resource       = &mtx1_mtd_resource,
 134 };
 135
 136 static struct __initdata platform_device * mtx1_devs[] = {
 137         &mtx1_gpio_leds,
 138         &mtx1_wdt,
 139         &mtx1_button,
 140         &mtx1_mtd,
 141 };
 142
 143 static int __init mtx1_register_devices(void)
 144 {
 145         int rc;
 146
 147         rc = gpio_request(mtx1_gpio_button[0].gpio,
 148                                         mtx1_gpio_button[0].desc);
 149         if (rc < 0) {
 150                 printk(KERN_INFO "mtx1: failed to request %d\n",
 151                                         mtx1_gpio_button[0].gpio);
 152                 goto out;
 153         }
 154         gpio_direction_input(mtx1_gpio_button[0].gpio);
 155 out:
 156         return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
 157 }
 158
 159 arch_initcall(mtx1_register_devices);