arch/arm/mach-at91/board-stamp9g20.c

   1 /*
   2  *  Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
   3  *                     taskit GmbH
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19
  20 #include <linux/mm.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/gpio.h>
  23 #include <linux/w1-gpio.h>
  24
  25 #include <asm/mach-types.h>
  26 #include <asm/mach/arch.h>
  27
  28 #include <mach/board.h>
  29 #include <mach/at91sam9_smc.h>
  30
  31 #include "sam9_smc.h"
  32 #include "generic.h"
  33
  34
  35 void __init stamp9g20_init_early(void)
  36 {
  37         /* Initialize processor: 18.432 MHz crystal */
  38         at91sam9260_initialize(18432000);
  39
  40         /* DGBU on ttyS0. (Rx & Tx only) */
  41         at91_register_uart(0, 0, 0);
  42
  43         /* set serial console to ttyS0 (ie, DBGU) */
  44         at91_set_serial_console(0);
  45 }
  46
  47 static void __init stamp9g20evb_init_early(void)
  48 {
  49         stamp9g20_init_early();
  50
  51         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  52         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
  53                                                 | ATMEL_UART_DTR | ATMEL_UART_DSR
  54                                                 | ATMEL_UART_DCD | ATMEL_UART_RI);
  55 }
  56
  57 static void __init portuxg20_init_early(void)
  58 {
  59         stamp9g20_init_early();
  60
  61         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  62         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
  63                                                 | ATMEL_UART_DTR | ATMEL_UART_DSR
  64                                                 | ATMEL_UART_DCD | ATMEL_UART_RI);
  65
  66         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
  67         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
  68
  69         /* USART2 on ttyS3. (Rx, Tx, CTS, RTS) */
  70         at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS | ATMEL_UART_RTS);
  71
  72         /* USART4 on ttyS5. (Rx, Tx only) */
  73         at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
  74
  75         /* USART5 on ttyS6. (Rx, Tx only) */
  76         at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
  77 }
  78
  79 static void __init init_irq(void)
  80 {
  81         at91sam9260_init_interrupts(NULL);
  82 }
  83
  84
  85 /*
  86  * NAND flash
  87  */
  88 static struct atmel_nand_data __initdata nand_data = {
  89         .ale            = 21,
  90         .cle            = 22,
  91         .rdy_pin        = AT91_PIN_PC13,
  92         .enable_pin     = AT91_PIN_PC14,
  93         .bus_width_16   = 0,
  94 };
  95
  96 static struct sam9_smc_config __initdata nand_smc_config = {
  97         .ncs_read_setup         = 0,
  98         .nrd_setup              = 2,
  99         .ncs_write_setup        = 0,
 100         .nwe_setup              = 2,
 101
 102         .ncs_read_pulse         = 4,
 103         .nrd_pulse              = 4,
 104         .ncs_write_pulse        = 4,
 105         .nwe_pulse              = 4,
 106
 107         .read_cycle             = 7,
 108         .write_cycle            = 7,
 109
 110         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 111         .tdf_cycles             = 3,
 112 };
 113
 114 static void __init add_device_nand(void)
 115 {
 116         /* configure chip-select 3 (NAND) */
 117         sam9_smc_configure(3, &nand_smc_config);
 118
 119         at91_add_device_nand(&nand_data);
 120 }
 121
 122
 123 /*
 124  * MCI (SD/MMC)
 125  * det_pin, wp_pin and vcc_pin are not connected
 126  */
 127 #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
 128 static struct mci_platform_data __initdata mmc_data = {
 129         .slot[0] = {
 130                 .bus_width      = 4,
 131         },
 132 };
 133 #else
 134 static struct at91_mmc_data __initdata mmc_data = {
 135         .slot_b         = 0,
 136         .wire4          = 1,
 137 };
 138 #endif
 139
 140
 141 /*
 142  * USB Host port
 143  */
 144 static struct at91_usbh_data __initdata usbh_data = {
 145         .ports          = 2,
 146 };
 147
 148
 149 /*
 150  * USB Device port
 151  */
 152 static struct at91_udc_data __initdata portuxg20_udc_data = {
 153         .vbus_pin       = AT91_PIN_PC7,
 154         .pullup_pin     = 0,            /* pull-up driven by UDC */
 155 };
 156
 157 static struct at91_udc_data __initdata stamp9g20evb_udc_data = {
 158         .vbus_pin       = AT91_PIN_PA22,
 159         .pullup_pin     = 0,            /* pull-up driven by UDC */
 160 };
 161
 162
 163 /*
 164  * MACB Ethernet device
 165  */
 166 static struct at91_eth_data __initdata macb_data = {
 167         .phy_irq_pin    = AT91_PIN_PA28,
 168         .is_rmii        = 1,
 169 };
 170
 171
 172 /*
 173  * LEDs
 174  */
 175 static struct gpio_led portuxg20_leds[] = {
 176         {
 177                 .name                   = "LED2",
 178                 .gpio                   = AT91_PIN_PC5,
 179                 .default_trigger        = "none",
 180         }, {
 181                 .name                   = "LED3",
 182                 .gpio                   = AT91_PIN_PC4,
 183                 .default_trigger        = "none",
 184         }, {
 185                 .name                   = "LED4",
 186                 .gpio                   = AT91_PIN_PC10,
 187                 .default_trigger        = "heartbeat",
 188         }
 189 };
 190
 191 static struct gpio_led stamp9g20evb_leds[] = {
 192         {
 193                 .name                   = "D8",
 194                 .gpio                   = AT91_PIN_PB18,
 195                 .active_low             = 1,
 196                 .default_trigger        = "none",
 197         }, {
 198                 .name                   = "D9",
 199                 .gpio                   = AT91_PIN_PB19,
 200                 .active_low             = 1,
 201                 .default_trigger        = "none",
 202         }, {
 203                 .name                   = "D10",
 204                 .gpio                   = AT91_PIN_PB20,
 205                 .active_low             = 1,
 206                 .default_trigger        = "heartbeat",
 207         }
 208 };
 209
 210
 211 /*
 212  * SPI devices
 213  */
 214 static struct spi_board_info portuxg20_spi_devices[] = {
 215         {
 216                 .modalias       = "spidev",
 217                 .chip_select    = 0,
 218                 .max_speed_hz   = 1 * 1000 * 1000,
 219                 .bus_num        = 0,
 220         }, {
 221                 .modalias       = "spidev",
 222                 .chip_select    = 0,
 223                 .max_speed_hz   = 1 * 1000 * 1000,
 224                 .bus_num        = 1,
 225         },
 226 };
 227
 228
 229 /*
 230  * Dallas 1-Wire
 231  */
 232 static struct w1_gpio_platform_data w1_gpio_pdata = {
 233         .pin            = AT91_PIN_PA29,
 234         .is_open_drain  = 1,
 235 };
 236
 237 static struct platform_device w1_device = {
 238         .name                   = "w1-gpio",
 239         .id                     = -1,
 240         .dev.platform_data      = &w1_gpio_pdata,
 241 };
 242
 243 void add_w1(void)
 244 {
 245         at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
 246         at91_set_multi_drive(w1_gpio_pdata.pin, 1);
 247         platform_device_register(&w1_device);
 248 }
 249
 250
 251 void __init stamp9g20_board_init(void)
 252 {
 253         /* Serial */
 254         at91_add_device_serial();
 255         /* NAND */
 256         add_device_nand();
 257         /* MMC */
 258 #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
 259         at91_add_device_mci(0, &mmc_data);
 260 #else
 261         at91_add_device_mmc(0, &mmc_data);
 262 #endif
 263         /* W1 */
 264         add_w1();
 265 }
 266
 267 static void __init portuxg20_board_init(void)
 268 {
 269         stamp9g20_board_init();
 270         /* USB Host */
 271         at91_add_device_usbh(&usbh_data);
 272         /* USB Device */
 273         at91_add_device_udc(&portuxg20_udc_data);
 274         /* Ethernet */
 275         at91_add_device_eth(&macb_data);
 276         /* I2C */
 277         at91_add_device_i2c(NULL, 0);
 278         /* SPI */
 279         at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
 280         /* LEDs */
 281         at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds));
 282 }
 283
 284 static void __init stamp9g20evb_board_init(void)
 285 {
 286         stamp9g20_board_init();
 287         /* USB Host */
 288         at91_add_device_usbh(&usbh_data);
 289         /* USB Device */
 290         at91_add_device_udc(&stamp9g20evb_udc_data);
 291         /* Ethernet */
 292         at91_add_device_eth(&macb_data);
 293         /* I2C */
 294         at91_add_device_i2c(NULL, 0);
 295         /* LEDs */
 296         at91_gpio_leds(stamp9g20evb_leds, ARRAY_SIZE(stamp9g20evb_leds));
 297 }
 298
 299 MACHINE_START(PORTUXG20, "taskit PortuxG20")
 300         /* Maintainer: taskit GmbH */
 301         .timer          = &at91sam926x_timer,
 302         .map_io         = at91sam9260_map_io,
 303         .init_early     = portuxg20_init_early,
 304         .init_irq       = init_irq,
 305         .init_machine   = portuxg20_board_init,
 306 MACHINE_END
 307
 308 MACHINE_START(STAMP9G20, "taskit Stamp9G20")
 309         /* Maintainer: taskit GmbH */
 310         .timer          = &at91sam926x_timer,
 311         .map_io         = at91sam9260_map_io,
 312         .init_early     = stamp9g20evb_init_early,
 313         .init_irq       = init_irq,
 314         .init_machine   = stamp9g20evb_board_init,
 315 MACHINE_END