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 /* GPIO port description */
  81 #define DEFINE_MXC_GPIO_PORT_IRQ(SOC, n, _irq)                          \
  82         {                                                               \
  83                 .chip.label = "gpio-" #n,                               \
  84                 .irq = _irq,                                            \
  85                 .base = SOC ## _IO_ADDRESS(MX2x_GPIO_BASE_ADDR +        \
  86                                 n * 0x100),                             \
  87                 .virtual_irq_start = MXC_GPIO_IRQ_START + n * 32,       \
  88         }
  89
  90 #define DEFINE_MXC_GPIO_PORT(SOC, n)                                    \
  91         {                                                               \
  92                 .chip.label = "gpio-" #n,                               \
  93                 .base = SOC ## _IO_ADDRESS(MX2x_GPIO_BASE_ADDR +        \
  94                                 n * 0x100),                             \
  95                 .virtual_irq_start = MXC_GPIO_IRQ_START + n * 32,       \
  96         }
  97
  98 #define DEFINE_MXC_GPIO_PORTS(SOC, pfx)                                 \
  99         static struct mxc_gpio_port pfx ## _gpio_ports[] = {            \
 100                 DEFINE_MXC_GPIO_PORT_IRQ(SOC, 0, SOC ## _INT_GPIO),     \
 101                 DEFINE_MXC_GPIO_PORT(SOC, 1),                           \
 102                 DEFINE_MXC_GPIO_PORT(SOC, 2),                           \
 103                 DEFINE_MXC_GPIO_PORT(SOC, 3),                           \
 104                 DEFINE_MXC_GPIO_PORT(SOC, 4),                           \
 105                 DEFINE_MXC_GPIO_PORT(SOC, 5),                           \
 106         }
 107
 108 #ifdef CONFIG_MACH_MX21
 109 DEFINE_MXC_GPIO_PORTS(MX21, imx21);
 110
 111 int __init imx21_register_gpios(void)
 112 {
 113         return mxc_gpio_init(imx21_gpio_ports, ARRAY_SIZE(imx21_gpio_ports));
 114 }
 115 #endif
 116
 117 #ifdef CONFIG_MACH_MX27
 118 DEFINE_MXC_GPIO_PORTS(MX27, imx27);
 119
 120 int __init imx27_register_gpios(void)
 121 {
 122         return mxc_gpio_init(imx27_gpio_ports, ARRAY_SIZE(imx27_gpio_ports));
 123 }
 124 #endif
 125
 126 #endif