arch/arm/mach-mx2/devices.c

   1 /*
   2  * Author: MontaVista Software, Inc.
   3  *       <source@mvista.com>
   4  *
   5  * Based on the OMAP devices.c
   6  *
   7  * 2005 (c) MontaVista Software, Inc. This file is licensed under the
   8  * terms of the GNU General Public License version 2. This program is
   9  * licensed "as is" without any warranty of any kind, whether express
  10  * or implied.
  11  *
  12  * Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
  13  * Copyright 2008 Juergen Beisert, kernel@pengutronix.de
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  27  * MA 02110-1301, USA.
  28  */
  29 #include <linux/module.h>
  30 #include <linux/kernel.h>
  31 #include <linux/init.h>
  32 #include <linux/platform_device.h>
  33 #include <linux/gpio.h>
  34
  35 #include <mach/hardware.h>
  36
  37 /*
  38  * Resource definition for the MXC IrDA
  39  */
  40 static struct resource mxc_irda_resources[] = {
  41         [0] = {
  42                 .start   = UART3_BASE_ADDR,
  43                 .end     = UART3_BASE_ADDR + SZ_4K - 1,
  44                 .flags   = IORESOURCE_MEM,
  45         },
  46         [1] = {
  47                 .start   = MXC_INT_UART3,
  48                 .end     = MXC_INT_UART3,
  49                 .flags   = IORESOURCE_IRQ,
  50         },
  51 };
  52
  53 /* Platform Data for MXC IrDA */
  54 struct platform_device mxc_irda_device = {
  55         .name = "mxc_irda",
  56         .id = 0,
  57         .num_resources = ARRAY_SIZE(mxc_irda_resources),
  58         .resource = mxc_irda_resources,
  59 };
  60
  61 /*
  62  * General Purpose Timer
  63  * - i.MX1: 2 timer (slighly different register handling)
  64  * - i.MX21: 3 timer
  65  * - i.MX27: 6 timer
  66  */
  67
  68 /* We use gpt0 as system timer, so do not add a device for this one */
  69
  70 static struct resource timer1_resources[] = {
  71         [0] = {
  72                 .start  = GPT2_BASE_ADDR,
  73                 .end    = GPT2_BASE_ADDR + 0x17,
  74                 .flags  = IORESOURCE_MEM
  75         },
  76         [1] = {
  77                 .start   = MXC_INT_GPT2,
  78                 .end     = MXC_INT_GPT2,
  79                 .flags   = IORESOURCE_IRQ,
  80         }
  81 };
  82
  83 struct platform_device mxc_gpt1 = {
  84         .name = "imx_gpt",
  85         .id = 1,
  86         .num_resources = ARRAY_SIZE(timer1_resources),
  87         .resource = timer1_resources
  88 };
  89
  90 static struct resource timer2_resources[] = {
  91         [0] = {
  92                 .start  = GPT3_BASE_ADDR,
  93                 .end    = GPT3_BASE_ADDR + 0x17,
  94                 .flags  = IORESOURCE_MEM
  95         },
  96         [1] = {
  97                 .start   = MXC_INT_GPT3,
  98                 .end     = MXC_INT_GPT3,
  99                 .flags   = IORESOURCE_IRQ,
 100         }
 101 };
 102
 103 struct platform_device mxc_gpt2 = {
 104         .name = "imx_gpt",
 105         .id = 2,
 106         .num_resources = ARRAY_SIZE(timer2_resources),
 107         .resource = timer2_resources
 108 };
 109
 110 #ifdef CONFIG_MACH_MX27
 111 static struct resource timer3_resources[] = {
 112         [0] = {
 113                 .start  = GPT4_BASE_ADDR,
 114                 .end    = GPT4_BASE_ADDR + 0x17,
 115                 .flags  = IORESOURCE_MEM
 116         },
 117         [1] = {
 118                 .start   = MXC_INT_GPT4,
 119                 .end     = MXC_INT_GPT4,
 120                 .flags   = IORESOURCE_IRQ,
 121         }
 122 };
 123
 124 struct platform_device mxc_gpt3 = {
 125         .name = "imx_gpt",
 126         .id = 3,
 127         .num_resources = ARRAY_SIZE(timer3_resources),
 128         .resource = timer3_resources
 129 };
 130
 131 static struct resource timer4_resources[] = {
 132         [0] = {
 133                 .start  = GPT5_BASE_ADDR,
 134                 .end    = GPT5_BASE_ADDR + 0x17,
 135                 .flags  = IORESOURCE_MEM
 136         },
 137         [1] = {
 138                 .start   = MXC_INT_GPT5,
 139                 .end     = MXC_INT_GPT5,
 140                 .flags   = IORESOURCE_IRQ,
 141         }
 142 };
 143
 144 struct platform_device mxc_gpt4 = {
 145         .name = "imx_gpt",
 146         .id = 4,
 147         .num_resources = ARRAY_SIZE(timer4_resources),
 148         .resource = timer4_resources
 149 };
 150
 151 static struct resource timer5_resources[] = {
 152         [0] = {
 153                 .start  = GPT6_BASE_ADDR,
 154                 .end    = GPT6_BASE_ADDR + 0x17,
 155                 .flags  = IORESOURCE_MEM
 156         },
 157         [1] = {
 158                 .start   = MXC_INT_GPT6,
 159                 .end     = MXC_INT_GPT6,
 160                 .flags   = IORESOURCE_IRQ,
 161         }
 162 };
 163
 164 struct platform_device mxc_gpt5 = {
 165         .name = "imx_gpt",
 166         .id = 5,
 167         .num_resources = ARRAY_SIZE(timer5_resources),
 168         .resource = timer5_resources
 169 };
 170 #endif
 171
 172 /*
 173  * Watchdog:
 174  * - i.MX1
 175  * - i.MX21
 176  * - i.MX27
 177  */
 178 static struct resource mxc_wdt_resources[] = {
 179         {
 180                 .start  = WDOG_BASE_ADDR,
 181                 .end    = WDOG_BASE_ADDR + 0x30,
 182                 .flags  = IORESOURCE_MEM,
 183         },
 184 };
 185
 186 struct platform_device mxc_wdt = {
 187         .name = "mxc_wdt",
 188         .id = 0,
 189         .num_resources = ARRAY_SIZE(mxc_wdt_resources),
 190         .resource = mxc_wdt_resources,
 191 };
 192
 193 /* GPIO port description */
 194 static struct mxc_gpio_port imx_gpio_ports[] = {
 195         [0] = {
 196                 .chip.label = "gpio-0",
 197                 .irq = MXC_INT_GPIO,
 198                 .base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 0),
 199                 .virtual_irq_start = MXC_MAX_INT_LINES,
 200         },
 201         [1] = {
 202                 .chip.label = "gpio-1",
 203                 .base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 1),
 204                 .virtual_irq_start = MXC_MAX_INT_LINES + 32,
 205         },
 206         [2] = {
 207                 .chip.label = "gpio-2",
 208                 .base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 2),
 209                 .virtual_irq_start = MXC_MAX_INT_LINES + 64,
 210         },
 211         [3] = {
 212                 .chip.label = "gpio-3",
 213                 .base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 3),
 214                 .virtual_irq_start = MXC_MAX_INT_LINES + 96,
 215         },
 216         [4] = {
 217                 .chip.label = "gpio-4",
 218                 .base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 4),
 219                 .virtual_irq_start = MXC_MAX_INT_LINES + 128,
 220         },
 221         [5] = {
 222                 .chip.label = "gpio-5",
 223                 .base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 5),
 224                 .virtual_irq_start = MXC_MAX_INT_LINES + 160,
 225         }
 226 };
 227
 228 int __init mxc_register_gpios(void)
 229 {
 230         return mxc_gpio_init(imx_gpio_ports, ARRAY_SIZE(imx_gpio_ports));
 231 }