arch/arm/mach-imx/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  * Copyright 2008 Sascha Hauer, kernel@pengutronix.de
  15  * Copyright (c) 2008 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
  16  * Copyright (c) 2008 Darius Augulis <darius.augulis@teltonika.lt>
  17  *
  18  * This program is free software; you can redistribute it and/or
  19  * modify it under the terms of the GNU General Public License
  20  * as published by the Free Software Foundation; either version 2
  21  * of the License, or (at your option) any later version.
  22  * This program is distributed in the hope that it will be useful,
  23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  * GNU General Public License for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License
  28  * along with this program; if not, write to the Free Software
  29  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  30  * MA 02110-1301, USA.
  31  */
  32 #include <linux/module.h>
  33 #include <linux/kernel.h>
  34 #include <linux/init.h>
  35 #include <linux/platform_device.h>
  36 #include <linux/gpio.h>
  37 #include <linux/dma-mapping.h>
  38 #include <linux/serial.h>
  39
  40 #include <mach/irqs.h>
  41 #include <mach/hardware.h>
  42 #include <mach/common.h>
  43 #include <mach/mmc.h>
  44
  45 #include "devices.h"
  46
  47 #if defined(CONFIG_ARCH_MX1)
  48 /* GPIO port description */
  49 static struct mxc_gpio_port imx_gpio_ports[] = {
  50         {
  51                 .chip.label = "gpio-0",
  52                 .base = MX1_IO_ADDRESS(MX1_GPIO_BASE_ADDR),
  53                 .irq = MX1_GPIO_INT_PORTA,
  54                 .virtual_irq_start = MXC_GPIO_IRQ_START,
  55         }, {
  56                 .chip.label = "gpio-1",
  57                 .base = MX1_IO_ADDRESS(MX1_GPIO_BASE_ADDR + 0x100),
  58                 .irq = MX1_GPIO_INT_PORTB,
  59                 .virtual_irq_start = MXC_GPIO_IRQ_START + 32,
  60         }, {
  61                 .chip.label = "gpio-2",
  62                 .base = MX1_IO_ADDRESS(MX1_GPIO_BASE_ADDR + 0x200),
  63                 .irq = MX1_GPIO_INT_PORTC,
  64                 .virtual_irq_start = MXC_GPIO_IRQ_START + 64,
  65         }, {
  66                 .chip.label = "gpio-3",
  67                 .base = MX1_IO_ADDRESS(MX1_GPIO_BASE_ADDR + 0x300),
  68                 .irq = MX1_GPIO_INT_PORTD,
  69                 .virtual_irq_start = MXC_GPIO_IRQ_START + 96,
  70         }
  71 };
  72
  73 int __init imx1_register_gpios(void)
  74 {
  75         return mxc_gpio_init(imx_gpio_ports, ARRAY_SIZE(imx_gpio_ports));
  76 }
  77 #endif
  78
  79 #if defined(CONFIG_MACH_MX21) || defined(CONFIG_MACH_MX27)
  80 /* Watchdog: i.MX1 has seperate driver, i.MX21 and i.MX27 are equal */
  81 static struct resource mxc_wdt_resources[] = {
  82         {
  83                 .start = MX2x_WDOG_BASE_ADDR,
  84                 .end = MX2x_WDOG_BASE_ADDR + SZ_4K - 1,
  85                 .flags = IORESOURCE_MEM,
  86         },
  87 };
  88
  89 struct platform_device mxc_wdt = {
  90         .name = "imx2-wdt",
  91         .id = 0,
  92         .num_resources = ARRAY_SIZE(mxc_wdt_resources),
  93         .resource = mxc_wdt_resources,
  94 };
  95
  96 /*
  97  * lcdc:
  98  * - i.MX1: the basic controller
  99  * - i.MX21: to be checked
 100  * - i.MX27: like i.MX1, with slightly variations
 101  */
 102 static struct resource mxc_fb[] = {
 103         {
 104                 .start = MX2x_LCDC_BASE_ADDR,
 105                 .end = MX2x_LCDC_BASE_ADDR + SZ_4K - 1,
 106                 .flags = IORESOURCE_MEM,
 107         }, {
 108                 .start = MX2x_INT_LCDC,
 109                 .end = MX2x_INT_LCDC,
 110                 .flags = IORESOURCE_IRQ,
 111         }
 112 };
 113
 114 /* mxc lcd driver */
 115 struct platform_device mxc_fb_device = {
 116         .name = "imx-fb",
 117         .id = 0,
 118         .num_resources = ARRAY_SIZE(mxc_fb),
 119         .resource = mxc_fb,
 120         .dev = {
 121                 .coherent_dma_mask = DMA_BIT_MASK(32),
 122         },
 123 };
 124
 125 static struct resource mxc_pwm_resources[] = {
 126         {
 127                 .start = MX2x_PWM_BASE_ADDR,
 128                 .end = MX2x_PWM_BASE_ADDR + SZ_4K - 1,
 129                 .flags = IORESOURCE_MEM,
 130         }, {
 131                 .start = MX2x_INT_PWM,
 132                 .end = MX2x_INT_PWM,
 133                 .flags = IORESOURCE_IRQ,
 134         }
 135 };
 136
 137 struct platform_device mxc_pwm_device = {
 138         .name = "mxc_pwm",
 139         .id = 0,
 140         .num_resources = ARRAY_SIZE(mxc_pwm_resources),
 141         .resource = mxc_pwm_resources,
 142 };
 143
 144 #define DEFINE_MXC_MMC_DEVICE(n, baseaddr, irq, dmareq)                 \
 145         static struct resource mxc_sdhc_resources ## n[] = {            \
 146                 {                                                       \
 147                         .start = baseaddr,                              \
 148                         .end = baseaddr + SZ_4K - 1,                    \
 149                         .flags = IORESOURCE_MEM,                        \
 150                 }, {                                                    \
 151                         .start = irq,                                   \
 152                         .end = irq,                                     \
 153                         .flags = IORESOURCE_IRQ,                        \
 154                 }, {                                                    \
 155                         .start = dmareq,                                \
 156                         .end = dmareq,                                  \
 157                         .flags = IORESOURCE_DMA,                        \
 158                 },                                                      \
 159         };                                                              \
 160                                                                         \
 161         static u64 mxc_sdhc ## n ## _dmamask = DMA_BIT_MASK(32);        \
 162                                                                         \
 163         struct platform_device mxc_sdhc_device ## n = {                 \
 164                 .name = "mxc-mmc",                                      \
 165                 .id = n,                                                \
 166                 .dev = {                                                \
 167                         .dma_mask = &mxc_sdhc ## n ## _dmamask,         \
 168                         .coherent_dma_mask = DMA_BIT_MASK(32),          \
 169                 },                                                      \
 170                 .num_resources = ARRAY_SIZE(mxc_sdhc_resources ## n),   \
 171                 .resource = mxc_sdhc_resources ## n,            \
 172         }
 173
 174 DEFINE_MXC_MMC_DEVICE(0, MX2x_SDHC1_BASE_ADDR, MX2x_INT_SDHC1, MX2x_DMA_REQ_SDHC1);
 175 DEFINE_MXC_MMC_DEVICE(1, MX2x_SDHC2_BASE_ADDR, MX2x_INT_SDHC2, MX2x_DMA_REQ_SDHC2);
 176
 177 #ifdef CONFIG_MACH_MX27
 178 static struct resource otg_resources[] = {
 179         {
 180                 .start = MX27_USBOTG_BASE_ADDR,
 181                 .end = MX27_USBOTG_BASE_ADDR + 0x1ff,
 182                 .flags = IORESOURCE_MEM,
 183         }, {
 184                 .start = MX27_INT_USB3,
 185                 .end = MX27_INT_USB3,
 186                 .flags = IORESOURCE_IRQ,
 187         },
 188 };
 189
 190 static u64 otg_dmamask = DMA_BIT_MASK(32);
 191
 192 /* OTG gadget device */
 193 struct platform_device mxc_otg_udc_device = {
 194         .name           = "fsl-usb2-udc",
 195         .id             = -1,
 196         .dev            = {
 197                 .dma_mask               = &otg_dmamask,
 198                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 199         },
 200         .resource       = otg_resources,
 201         .num_resources  = ARRAY_SIZE(otg_resources),
 202 };
 203
 204 /* OTG host */
 205 struct platform_device mxc_otg_host = {
 206         .name = "mxc-ehci",
 207         .id = 0,
 208         .dev = {
 209                 .coherent_dma_mask = DMA_BIT_MASK(32),
 210                 .dma_mask = &otg_dmamask,
 211         },
 212         .resource = otg_resources,
 213         .num_resources = ARRAY_SIZE(otg_resources),
 214 };
 215
 216 /* USB host 1 */
 217
 218 static u64 usbh1_dmamask = DMA_BIT_MASK(32);
 219
 220 static struct resource mxc_usbh1_resources[] = {
 221         {
 222                 .start = MX27_USBOTG_BASE_ADDR + 0x200,
 223                 .end = MX27_USBOTG_BASE_ADDR + 0x3ff,
 224                 .flags = IORESOURCE_MEM,
 225         }, {
 226                 .start = MX27_INT_USB1,
 227                 .end = MX27_INT_USB1,
 228                 .flags = IORESOURCE_IRQ,
 229         },
 230 };
 231
 232 struct platform_device mxc_usbh1 = {
 233         .name = "mxc-ehci",
 234         .id = 1,
 235         .dev = {
 236                 .coherent_dma_mask = DMA_BIT_MASK(32),
 237                 .dma_mask = &usbh1_dmamask,
 238         },
 239         .resource = mxc_usbh1_resources,
 240         .num_resources = ARRAY_SIZE(mxc_usbh1_resources),
 241 };
 242
 243 /* USB host 2 */
 244 static u64 usbh2_dmamask = DMA_BIT_MASK(32);
 245
 246 static struct resource mxc_usbh2_resources[] = {
 247         {
 248                 .start = MX27_USBOTG_BASE_ADDR + 0x400,
 249                 .end = MX27_USBOTG_BASE_ADDR + 0x5ff,
 250                 .flags = IORESOURCE_MEM,
 251         }, {
 252                 .start = MX27_INT_USB2,
 253                 .end = MX27_INT_USB2,
 254                 .flags = IORESOURCE_IRQ,
 255         },
 256 };
 257
 258 struct platform_device mxc_usbh2 = {
 259         .name = "mxc-ehci",
 260         .id = 2,
 261         .dev = {
 262                 .coherent_dma_mask = DMA_BIT_MASK(32),
 263                 .dma_mask = &usbh2_dmamask,
 264         },
 265         .resource = mxc_usbh2_resources,
 266         .num_resources = ARRAY_SIZE(mxc_usbh2_resources),
 267 };
 268 #endif
 269
 270 /* GPIO port description */
 271 #define DEFINE_MXC_GPIO_PORT_IRQ(SOC, n, _irq)                          \
 272         {                                                               \
 273                 .chip.label = "gpio-" #n,                               \
 274                 .irq = _irq,                                            \
 275                 .base = SOC ## _IO_ADDRESS(MX2x_GPIO_BASE_ADDR +        \
 276                                 n * 0x100),                             \
 277                 .virtual_irq_start = MXC_GPIO_IRQ_START + n * 32,       \
 278         }
 279
 280 #define DEFINE_MXC_GPIO_PORT(SOC, n)                                    \
 281         {                                                               \
 282                 .chip.label = "gpio-" #n,                               \
 283                 .base = SOC ## _IO_ADDRESS(MX2x_GPIO_BASE_ADDR +        \
 284                                 n * 0x100),                             \
 285                 .virtual_irq_start = MXC_GPIO_IRQ_START + n * 32,       \
 286         }
 287
 288 #define DEFINE_MXC_GPIO_PORTS(SOC, pfx)                                 \
 289         static struct mxc_gpio_port pfx ## _gpio_ports[] = {            \
 290                 DEFINE_MXC_GPIO_PORT_IRQ(SOC, 0, SOC ## _INT_GPIO),     \
 291                 DEFINE_MXC_GPIO_PORT(SOC, 1),                           \
 292                 DEFINE_MXC_GPIO_PORT(SOC, 2),                           \
 293                 DEFINE_MXC_GPIO_PORT(SOC, 3),                           \
 294                 DEFINE_MXC_GPIO_PORT(SOC, 4),                           \
 295                 DEFINE_MXC_GPIO_PORT(SOC, 5),                           \
 296         }
 297
 298 #ifdef CONFIG_MACH_MX21
 299 DEFINE_MXC_GPIO_PORTS(MX21, imx21);
 300
 301 int __init imx21_register_gpios(void)
 302 {
 303         return mxc_gpio_init(imx21_gpio_ports, ARRAY_SIZE(imx21_gpio_ports));
 304 }
 305 #endif
 306
 307 #ifdef CONFIG_MACH_MX27
 308 DEFINE_MXC_GPIO_PORTS(MX27, imx27);
 309
 310 int __init imx27_register_gpios(void)
 311 {
 312         return mxc_gpio_init(imx27_gpio_ports, ARRAY_SIZE(imx27_gpio_ports));
 313 }
 314 #endif
 315
 316 #ifdef CONFIG_MACH_MX21
 317 static struct resource mx21_usbhc_resources[] = {
 318         {
 319                 .start  = MX21_USBOTG_BASE_ADDR,
 320                 .end    = MX21_USBOTG_BASE_ADDR + SZ_8K - 1,
 321                 .flags  = IORESOURCE_MEM,
 322         },
 323         {
 324                 .start          = MX21_INT_USBHOST,
 325                 .end            = MX21_INT_USBHOST,
 326                 .flags          = IORESOURCE_IRQ,
 327         },
 328 };
 329
 330 struct platform_device mx21_usbhc_device = {
 331         .name           = "imx21-hcd",
 332         .id             = 0,
 333         .dev            = {
 334                 .dma_mask = &mx21_usbhc_device.dev.coherent_dma_mask,
 335                 .coherent_dma_mask = DMA_BIT_MASK(32),
 336         },
 337         .num_resources  = ARRAY_SIZE(mx21_usbhc_resources),
 338         .resource       = mx21_usbhc_resources,
 339 };
 340 #endif
 341
 342 static struct resource imx_kpp_resources[] = {
 343         {
 344                 .start  = MX2x_KPP_BASE_ADDR,
 345                 .end    = MX2x_KPP_BASE_ADDR + 0xf,
 346                 .flags  = IORESOURCE_MEM
 347         }, {
 348                 .start  = MX2x_INT_KPP,
 349                 .end    = MX2x_INT_KPP,
 350                 .flags  = IORESOURCE_IRQ,
 351         },
 352 };
 353
 354 struct platform_device imx_kpp_device = {
 355         .name = "imx-keypad",
 356         .id = -1,
 357         .num_resources = ARRAY_SIZE(imx_kpp_resources),
 358         .resource = imx_kpp_resources,
 359 };
 360
 361 #endif