arch/arm/mach-mx3/devices.c

   1 /*
   2  * Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
   3  * Copyright 2008 Sascha Hauer, kernel@pengutronix.de
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301, USA.
  18  */
  19
  20 #include <linux/module.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/serial.h>
  23 #include <linux/gpio.h>
  24 #include <mach/hardware.h>
  25 #include <mach/imx-uart.h>
  26
  27 static struct resource uart0[] = {
  28         {
  29                 .start = UART1_BASE_ADDR,
  30                 .end = UART1_BASE_ADDR + 0x0B5,
  31                 .flags = IORESOURCE_MEM,
  32         }, {
  33                 .start = MXC_INT_UART1,
  34                 .end = MXC_INT_UART1,
  35                 .flags = IORESOURCE_IRQ,
  36         },
  37 };
  38
  39 static struct platform_device mxc_uart_device0 = {
  40         .name = "imx-uart",
  41         .id = 0,
  42         .resource = uart0,
  43         .num_resources = ARRAY_SIZE(uart0),
  44 };
  45
  46 static struct resource uart1[] = {
  47         {
  48                 .start = UART2_BASE_ADDR,
  49                 .end = UART2_BASE_ADDR + 0x0B5,
  50                 .flags = IORESOURCE_MEM,
  51         }, {
  52                 .start = MXC_INT_UART2,
  53                 .end = MXC_INT_UART2,
  54                 .flags = IORESOURCE_IRQ,
  55         },
  56 };
  57
  58 static struct platform_device mxc_uart_device1 = {
  59         .name = "imx-uart",
  60         .id = 1,
  61         .resource = uart1,
  62         .num_resources = ARRAY_SIZE(uart1),
  63 };
  64
  65 static struct resource uart2[] = {
  66         {
  67                 .start = UART3_BASE_ADDR,
  68                 .end = UART3_BASE_ADDR + 0x0B5,
  69                 .flags = IORESOURCE_MEM,
  70         }, {
  71                 .start = MXC_INT_UART3,
  72                 .end = MXC_INT_UART3,
  73                 .flags = IORESOURCE_IRQ,
  74         },
  75 };
  76
  77 static struct platform_device mxc_uart_device2 = {
  78         .name = "imx-uart",
  79         .id = 2,
  80         .resource = uart2,
  81         .num_resources = ARRAY_SIZE(uart2),
  82 };
  83
  84 static struct resource uart3[] = {
  85         {
  86                 .start = UART4_BASE_ADDR,
  87                 .end = UART4_BASE_ADDR + 0x0B5,
  88                 .flags = IORESOURCE_MEM,
  89         }, {
  90                 .start = MXC_INT_UART4,
  91                 .end = MXC_INT_UART4,
  92                 .flags = IORESOURCE_IRQ,
  93         },
  94 };
  95
  96 static struct platform_device mxc_uart_device3 = {
  97         .name = "imx-uart",
  98         .id = 3,
  99         .resource = uart3,
 100         .num_resources = ARRAY_SIZE(uart3),
 101 };
 102
 103 static struct resource uart4[] = {
 104         {
 105                 .start = UART5_BASE_ADDR,
 106                 .end = UART5_BASE_ADDR + 0x0B5,
 107                 .flags = IORESOURCE_MEM,
 108         }, {
 109                 .start = MXC_INT_UART5,
 110                 .end = MXC_INT_UART5,
 111                 .flags = IORESOURCE_IRQ,
 112         },
 113 };
 114
 115 static struct platform_device mxc_uart_device4 = {
 116         .name = "imx-uart",
 117         .id = 4,
 118         .resource = uart4,
 119         .num_resources = ARRAY_SIZE(uart4),
 120 };
 121
 122 /*
 123  * Register only those UARTs that physically exist
 124  */
 125 int __init imx_init_uart(int uart_no, struct imxuart_platform_data *pdata)
 126 {
 127         switch (uart_no) {
 128         case 0:
 129                 mxc_uart_device0.dev.platform_data = pdata;
 130                 platform_device_register(&mxc_uart_device0);
 131                 break;
 132         case 1:
 133                 mxc_uart_device1.dev.platform_data = pdata;
 134                 platform_device_register(&mxc_uart_device1);
 135                 break;
 136         case 2:
 137                 mxc_uart_device2.dev.platform_data = pdata;
 138                 platform_device_register(&mxc_uart_device2);
 139                 break;
 140         case 3:
 141                 mxc_uart_device3.dev.platform_data = pdata;
 142                 platform_device_register(&mxc_uart_device3);
 143                 break;
 144         case 4:
 145                 mxc_uart_device4.dev.platform_data = pdata;
 146                 platform_device_register(&mxc_uart_device4);
 147                 break;
 148         default:
 149                 return -ENODEV;
 150         }
 151
 152         return 0;
 153 }
 154
 155 /* GPIO port description */
 156 static struct mxc_gpio_port imx_gpio_ports[] = {
 157         [0] = {
 158                 .chip.label = "gpio-0",
 159                 .base = IO_ADDRESS(GPIO1_BASE_ADDR),
 160                 .irq = MXC_INT_GPIO1,
 161                 .virtual_irq_start = MXC_GPIO_INT_BASE
 162         },
 163         [1] = {
 164                 .chip.label = "gpio-1",
 165                 .base = IO_ADDRESS(GPIO2_BASE_ADDR),
 166                 .irq = MXC_INT_GPIO2,
 167                 .virtual_irq_start = MXC_GPIO_INT_BASE + GPIO_NUM_PIN
 168         },
 169         [2] = {
 170                 .chip.label = "gpio-2",
 171                 .base = IO_ADDRESS(GPIO3_BASE_ADDR),
 172                 .irq = MXC_INT_GPIO3,
 173                 .virtual_irq_start = MXC_GPIO_INT_BASE + GPIO_NUM_PIN * 2
 174         }
 175 };
 176
 177 int __init mxc_register_gpios(void)
 178 {
 179         return mxc_gpio_init(imx_gpio_ports, ARRAY_SIZE(imx_gpio_ports));
 180 }