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_map_io(void)
  61 {
  62         /* Initialize processor: 18.432 MHz crystal */
  63         at91sam9260_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 static void __init foxg20_init_irq(void)
 105 {
 106         at91sam9260_init_interrupts(NULL);
 107 }
 108
 109
 110 /*
 111  * USB Host port
 112  */
 113 static struct at91_usbh_data __initdata foxg20_usbh_data = {
 114         .ports          = 2,
 115 };
 116
 117 /*
 118  * USB Device port
 119  */
 120 static struct at91_udc_data __initdata foxg20_udc_data = {
 121         .vbus_pin       = AT91_PIN_PC6,
 122         .pullup_pin     = 0,            /* pull-up driven by UDC */
 123 };
 124
 125
 126 /*
 127  * SPI devices.
 128  */
 129 static struct spi_board_info foxg20_spi_devices[] = {
 130 #if !defined(CONFIG_MMC_AT91)
 131         {
 132                 .modalias       = "mtd_dataflash",
 133                 .chip_select    = 1,
 134                 .max_speed_hz   = 15 * 1000 * 1000,
 135                 .bus_num        = 0,
 136         },
 137 #endif
 138 };
 139
 140
 141 /*
 142  * MACB Ethernet device
 143  */
 144 static struct at91_eth_data __initdata foxg20_macb_data = {
 145         .phy_irq_pin    = AT91_PIN_PA7,
 146         .is_rmii        = 1,
 147 };
 148
 149 /*
 150  * MCI (SD/MMC)
 151  * det_pin, wp_pin and vcc_pin are not connected
 152  */
 153 static struct at91_mmc_data __initdata foxg20_mmc_data = {
 154         .slot_b         = 1,
 155         .wire4          = 1,
 156 };
 157
 158
 159 /*
 160  * LEDs
 161  */
 162 static struct gpio_led foxg20_leds[] = {
 163         {       /* user led, red */
 164                 .name                   = "user_led",
 165                 .gpio                   = AT91_PIN_PC7,
 166                 .active_low             = 0,
 167                 .default_trigger        = "heartbeat",
 168         },
 169 };
 170
 171
 172 /*
 173  * GPIO Buttons
 174  */
 175 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 176 static struct gpio_keys_button foxg20_buttons[] = {
 177         {
 178                 .gpio           = AT91_PIN_PC4,
 179                 .code           = BTN_1,
 180                 .desc           = "Button 1",
 181                 .active_low     = 1,
 182                 .wakeup         = 1,
 183         },
 184 };
 185
 186 static struct gpio_keys_platform_data foxg20_button_data = {
 187         .buttons        = foxg20_buttons,
 188         .nbuttons       = ARRAY_SIZE(foxg20_buttons),
 189 };
 190
 191 static struct platform_device foxg20_button_device = {
 192         .name           = "gpio-keys",
 193         .id             = -1,
 194         .num_resources  = 0,
 195         .dev            = {
 196                 .platform_data  = &foxg20_button_data,
 197         }
 198 };
 199
 200 static void __init foxg20_add_device_buttons(void)
 201 {
 202         at91_set_gpio_input(AT91_PIN_PC4, 1);   /* btn1 */
 203         at91_set_deglitch(AT91_PIN_PC4, 1);
 204
 205         platform_device_register(&foxg20_button_device);
 206 }
 207 #else
 208 static void __init foxg20_add_device_buttons(void) {}
 209 #endif
 210
 211
 212 #if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
 213 static struct w1_gpio_platform_data w1_gpio_pdata = {
 214         /* If you choose to use a pin other than PB16 it needs to be 3.3V */
 215         .pin            = AT91_PIN_PB16,
 216         .is_open_drain  = 1,
 217 };
 218
 219 static struct platform_device w1_device = {
 220         .name                   = "w1-gpio",
 221         .id                     = -1,
 222         .dev.platform_data      = &w1_gpio_pdata,
 223 };
 224
 225 static void __init at91_add_device_w1(void)
 226 {
 227         at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
 228         at91_set_multi_drive(w1_gpio_pdata.pin, 1);
 229         platform_device_register(&w1_device);
 230 }
 231
 232 #endif
 233
 234
 235 static struct i2c_board_info __initdata foxg20_i2c_devices[] = {
 236         {
 237                 I2C_BOARD_INFO("24c512", 0x50),
 238         },
 239 };
 240
 241
 242 static void __init foxg20_board_init(void)
 243 {
 244         /* Serial */
 245         at91_add_device_serial();
 246         /* USB Host */
 247         at91_add_device_usbh(&foxg20_usbh_data);
 248         /* USB Device */
 249         at91_add_device_udc(&foxg20_udc_data);
 250         /* SPI */
 251         at91_add_device_spi(foxg20_spi_devices, ARRAY_SIZE(foxg20_spi_devices));
 252         /* Ethernet */
 253         at91_add_device_eth(&foxg20_macb_data);
 254         /* MMC */
 255         at91_add_device_mmc(0, &foxg20_mmc_data);
 256         /* I2C */
 257         at91_add_device_i2c(foxg20_i2c_devices, ARRAY_SIZE(foxg20_i2c_devices));
 258         /* LEDs */
 259         at91_gpio_leds(foxg20_leds, ARRAY_SIZE(foxg20_leds));
 260         /* Push Buttons */
 261         foxg20_add_device_buttons();
 262 #if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
 263         at91_add_device_w1();
 264 #endif
 265 }
 266
 267 MACHINE_START(ACMENETUSFOXG20, "Acme Systems srl FOX Board G20")
 268         /* Maintainer: Sergio Tanzilli */
 269         .boot_params    = AT91_SDRAM_BASE + 0x100,
 270         .timer          = &at91sam926x_timer,
 271         .map_io         = foxg20_map_io,
 272         .init_irq       = foxg20_init_irq,
 273         .init_machine   = foxg20_board_init,
 274 MACHINE_END