linux/arch/arm/mach-at91/board-foxg20.c
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   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
  60static 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
 104static void __init foxg20_init_irq(void)
 105{
 106        at91sam9260_init_interrupts(NULL);
 107}
 108
 109
 110/*
 111 * USB Host port
 112 */
 113static struct at91_usbh_data __initdata foxg20_usbh_data = {
 114        .ports          = 2,
 115};
 116
 117/*
 118 * USB Device port
 119 */
 120static 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 */
 129static 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 */
 144static 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 */
 153static struct at91_mmc_data __initdata foxg20_mmc_data = {
 154        .slot_b         = 1,
 155        .wire4          = 1,
 156};
 157
 158
 159/*
 160 * LEDs
 161 */
 162static 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)
 176static 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
 186static struct gpio_keys_platform_data foxg20_button_data = {
 187        .buttons        = foxg20_buttons,
 188        .nbuttons       = ARRAY_SIZE(foxg20_buttons),
 189};
 190
 191static 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
 200static 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
 208static void __init foxg20_add_device_buttons(void) {}
 209#endif
 210
 211
 212#if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
 213static 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
 219static struct platform_device w1_device = {
 220        .name                   = "w1-gpio",
 221        .id                     = -1,
 222        .dev.platform_data      = &w1_gpio_pdata,
 223};
 224
 225static 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
 235static struct i2c_board_info __initdata foxg20_i2c_devices[] = {
 236        {
 237                I2C_BOARD_INFO("24c512", 0x50),
 238        },
 239};
 240
 241
 242static 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
 267MACHINE_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,
 274MACHINE_END
 275
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