arch/arm/mach-at91/board-foxg20.c

   1 /*
   2  *  Copyright (C) 2005 SAN People
   3  *  Copyright (C) 2008 Atmel
   4  *  Copyright (C) 2010 Lee McLoughlin - lee@lmmrtech.com
   5  *  Copyright (C) 2010 Sergio Tanzilli - tanzilli@acmesystems.it
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include <linux/types.h>
  23 #include <linux/init.h>
  24 #include <linux/mm.h>
  25 #include <linux/module.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/spi/spi.h>
  28 #include <linux/spi/at73c213.h>
  29 #include <linux/gpio.h>
  30 #include <linux/gpio_keys.h>
  31 #include <linux/input.h>
  32 #include <linux/clk.h>
  33 #include <linux/w1-gpio.h>
  34
  35 #include <mach/hardware.h>
  36 #include <asm/setup.h>
  37 #include <asm/mach-types.h>
  38 #include <asm/irq.h>
  39
  40 #include <asm/mach/arch.h>
  41 #include <asm/mach/map.h>
  42 #include <asm/mach/irq.h>
  43
  44 #include <mach/board.h>
  45 #include <mach/at91sam9_smc.h>
  46
  47 #include "sam9_smc.h"
  48 #include "generic.h"
  49
  50 /*
  51  * The FOX Board G20 hardware comes as the "Netus G20" board with
  52  * just the cpu, ram, dataflash and two header connectors.
  53  * This is plugged into the FOX Board which provides the ethernet,
  54  * usb, rtc, leds, switch, ...
  55  *
  56  * For more info visit: http://www.acmesystems.it/foxg20
  57  */
  58
  59
  60 static void __init foxg20_init_early(void)
  61 {
  62         /* Initialize processor: 18.432 MHz crystal */
  63         at91_initialize(18432000);
  64
  65         /* DBGU on ttyS0. (Rx & Tx only) */
  66         at91_register_uart(0, 0, 0);
  67
  68         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  69         at91_register_uart(AT91SAM9260_ID_US0, 1,
  70                                 ATMEL_UART_CTS
  71                                 | ATMEL_UART_RTS
  72                                 | ATMEL_UART_DTR
  73                                 | ATMEL_UART_DSR
  74                                 | ATMEL_UART_DCD
  75                                 | ATMEL_UART_RI);
  76
  77         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
  78         at91_register_uart(AT91SAM9260_ID_US1, 2,
  79                 ATMEL_UART_CTS
  80                 | ATMEL_UART_RTS);
  81
  82         /* USART2 on ttyS3. (Rx & Tx only) */
  83         at91_register_uart(AT91SAM9260_ID_US2, 3, 0);
  84
  85         /* USART3 on ttyS4. (Rx, Tx, RTS, CTS) */
  86         at91_register_uart(AT91SAM9260_ID_US3, 4,
  87                 ATMEL_UART_CTS
  88                 | ATMEL_UART_RTS);
  89
  90         /* USART4 on ttyS5. (Rx & Tx only) */
  91         at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
  92
  93         /* USART5 on ttyS6. (Rx & Tx only) */
  94         at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
  95
  96         /* set serial console to ttyS0 (ie, DBGU) */
  97         at91_set_serial_console(0);
  98
  99         /* Set the internal pull-up resistor on DRXD */
 100         at91_set_A_periph(AT91_PIN_PB14, 1);
 101
 102 }
 103
 104 /*
 105  * USB Host port
 106  */
 107 static struct at91_usbh_data __initdata foxg20_usbh_data = {
 108         .ports          = 2,
 109         .vbus_pin       = {-EINVAL, -EINVAL},
 110         .overcurrent_pin= {-EINVAL, -EINVAL},
 111 };
 112
 113 /*
 114  * USB Device port
 115  */
 116 static struct at91_udc_data __initdata foxg20_udc_data = {
 117         .vbus_pin       = AT91_PIN_PC6,
 118         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
 119 };
 120
 121
 122 /*
 123  * SPI devices.
 124  */
 125 static struct spi_board_info foxg20_spi_devices[] = {
 126 #if !defined(CONFIG_MMC_AT91)
 127         {
 128                 .modalias       = "mtd_dataflash",
 129                 .chip_select    = 1,
 130                 .max_speed_hz   = 15 * 1000 * 1000,
 131                 .bus_num        = 0,
 132         },
 133 #endif
 134 };
 135
 136
 137 /*
 138  * MACB Ethernet device
 139  */
 140 static struct macb_platform_data __initdata foxg20_macb_data = {
 141         .phy_irq_pin    = AT91_PIN_PA7,
 142         .is_rmii        = 1,
 143 };
 144
 145 /*
 146  * MCI (SD/MMC)
 147  * det_pin, wp_pin and vcc_pin are not connected
 148  */
 149 static struct at91_mmc_data __initdata foxg20_mmc_data = {
 150         .slot_b         = 1,
 151         .wire4          = 1,
 152         .det_pin        = -EINVAL,
 153         .wp_pin         = -EINVAL,
 154         .vcc_pin        = -EINVAL,
 155 };
 156
 157
 158 /*
 159  * LEDs
 160  */
 161 static struct gpio_led foxg20_leds[] = {
 162         {       /* user led, red */
 163                 .name                   = "user_led",
 164                 .gpio                   = AT91_PIN_PC7,
 165                 .active_low             = 0,
 166                 .default_trigger        = "heartbeat",
 167         },
 168 };
 169
 170
 171 /*
 172  * GPIO Buttons
 173  */
 174 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 175 static struct gpio_keys_button foxg20_buttons[] = {
 176         {
 177                 .gpio           = AT91_PIN_PC4,
 178                 .code           = BTN_1,
 179                 .desc           = "Button 1",
 180                 .active_low     = 1,
 181                 .wakeup         = 1,
 182         },
 183 };
 184
 185 static struct gpio_keys_platform_data foxg20_button_data = {
 186         .buttons        = foxg20_buttons,
 187         .nbuttons       = ARRAY_SIZE(foxg20_buttons),
 188 };
 189
 190 static struct platform_device foxg20_button_device = {
 191         .name           = "gpio-keys",
 192         .id             = -1,
 193         .num_resources  = 0,
 194         .dev            = {
 195                 .platform_data  = &foxg20_button_data,
 196         }
 197 };
 198
 199 static void __init foxg20_add_device_buttons(void)
 200 {
 201         at91_set_gpio_input(AT91_PIN_PC4, 1);   /* btn1 */
 202         at91_set_deglitch(AT91_PIN_PC4, 1);
 203
 204         platform_device_register(&foxg20_button_device);
 205 }
 206 #else
 207 static void __init foxg20_add_device_buttons(void) {}
 208 #endif
 209
 210
 211 #if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
 212 static struct w1_gpio_platform_data w1_gpio_pdata = {
 213         /* If you choose to use a pin other than PB16 it needs to be 3.3V */
 214         .pin            = AT91_PIN_PB16,
 215         .is_open_drain  = 1,
 216 };
 217
 218 static struct platform_device w1_device = {
 219         .name                   = "w1-gpio",
 220         .id                     = -1,
 221         .dev.platform_data      = &w1_gpio_pdata,
 222 };
 223
 224 static void __init at91_add_device_w1(void)
 225 {
 226         at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
 227         at91_set_multi_drive(w1_gpio_pdata.pin, 1);
 228         platform_device_register(&w1_device);
 229 }
 230
 231 #endif
 232
 233
 234 static struct i2c_board_info __initdata foxg20_i2c_devices[] = {
 235         {
 236                 I2C_BOARD_INFO("24c512", 0x50),
 237         },
 238 };
 239
 240
 241 static void __init foxg20_board_init(void)
 242 {
 243         /* Serial */
 244         at91_add_device_serial();
 245         /* USB Host */
 246         at91_add_device_usbh(&foxg20_usbh_data);
 247         /* USB Device */
 248         at91_add_device_udc(&foxg20_udc_data);
 249         /* SPI */
 250         at91_add_device_spi(foxg20_spi_devices, ARRAY_SIZE(foxg20_spi_devices));
 251         /* Ethernet */
 252         at91_add_device_eth(&foxg20_macb_data);
 253         /* MMC */
 254         at91_add_device_mmc(0, &foxg20_mmc_data);
 255         /* I2C */
 256         at91_add_device_i2c(foxg20_i2c_devices, ARRAY_SIZE(foxg20_i2c_devices));
 257         /* LEDs */
 258         at91_gpio_leds(foxg20_leds, ARRAY_SIZE(foxg20_leds));
 259         /* Push Buttons */
 260         foxg20_add_device_buttons();
 261 #if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
 262         at91_add_device_w1();
 263 #endif
 264 }
 265
 266 MACHINE_START(ACMENETUSFOXG20, "Acme Systems srl FOX Board G20")
 267         /* Maintainer: Sergio Tanzilli */
 268         .timer          = &at91sam926x_timer,
 269         .map_io         = at91_map_io,
 270         .init_early     = foxg20_init_early,
 271         .init_irq       = at91_init_irq_default,
 272         .init_machine   = foxg20_board_init,
 273 MACHINE_END