arch/arm/mach-at91/board-sam9260ek.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-sam9260ek.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *  Copyright (C) 2006 Atmel
   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/gpio.h>
  24 #include <linux/init.h>
  25 #include <linux/mm.h>
  26 #include <linux/module.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/spi/spi.h>
  29 #include <linux/spi/at73c213.h>
  30 #include <linux/clk.h>
  31 #include <linux/i2c/at24.h>
  32 #include <linux/gpio_keys.h>
  33 #include <linux/input.h>
  34
  35 #include <asm/setup.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/irq.h>
  38
  39 #include <asm/mach/arch.h>
  40 #include <asm/mach/map.h>
  41 #include <asm/mach/irq.h>
  42
  43 #include <mach/hardware.h>
  44 #include <mach/board.h>
  45 #include <mach/at91sam9_smc.h>
  46 #include <mach/at91_shdwc.h>
  47 #include <mach/system_rev.h>
  48
  49 #include "sam9_smc.h"
  50 #include "generic.h"
  51
  52
  53 static void __init ek_init_early(void)
  54 {
  55         /* Initialize processor: 18.432 MHz crystal */
  56         at91_initialize(18432000);
  57
  58         /* DBGU on ttyS0. (Rx & Tx only) */
  59         at91_register_uart(0, 0, 0);
  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 | ATMEL_UART_DCD
  64                            | ATMEL_UART_RI);
  65
  66         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
  67         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
  68
  69         /* set serial console to ttyS0 (ie, DBGU) */
  70         at91_set_serial_console(0);
  71 }
  72
  73 /*
  74  * USB Host port
  75  */
  76 static struct at91_usbh_data __initdata ek_usbh_data = {
  77         .ports          = 2,
  78         .vbus_pin       = {-EINVAL, -EINVAL},
  79         .overcurrent_pin= {-EINVAL, -EINVAL},
  80 };
  81
  82 /*
  83  * USB Device port
  84  */
  85 static struct at91_udc_data __initdata ek_udc_data = {
  86         .vbus_pin       = AT91_PIN_PC5,
  87         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  88 };
  89
  90
  91 /*
  92  * Audio
  93  */
  94 static struct at73c213_board_info at73c213_data = {
  95         .ssc_id         = 0,
  96         .shortname      = "AT91SAM9260-EK external DAC",
  97 };
  98
  99 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 100 static void __init at73c213_set_clk(struct at73c213_board_info *info)
 101 {
 102         struct clk *pck0;
 103         struct clk *plla;
 104
 105         pck0 = clk_get(NULL, "pck0");
 106         plla = clk_get(NULL, "plla");
 107
 108         /* AT73C213 MCK Clock */
 109         at91_set_B_periph(AT91_PIN_PC1, 0);     /* PCK0 */
 110
 111         clk_set_parent(pck0, plla);
 112         clk_put(plla);
 113
 114         info->dac_clk = pck0;
 115 }
 116 #else
 117 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
 118 #endif
 119
 120 /*
 121  * SPI devices.
 122  */
 123 static struct spi_board_info ek_spi_devices[] = {
 124 #if !defined(CONFIG_MMC_AT91)
 125         {       /* DataFlash chip */
 126                 .modalias       = "mtd_dataflash",
 127                 .chip_select    = 1,
 128                 .max_speed_hz   = 15 * 1000 * 1000,
 129                 .bus_num        = 0,
 130         },
 131 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 132         {       /* DataFlash card */
 133                 .modalias       = "mtd_dataflash",
 134                 .chip_select    = 0,
 135                 .max_speed_hz   = 15 * 1000 * 1000,
 136                 .bus_num        = 0,
 137         },
 138 #endif
 139 #endif
 140 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 141         {       /* AT73C213 DAC */
 142                 .modalias       = "at73c213",
 143                 .chip_select    = 0,
 144                 .max_speed_hz   = 10 * 1000 * 1000,
 145                 .bus_num        = 1,
 146                 .mode           = SPI_MODE_1,
 147                 .platform_data  = &at73c213_data,
 148         },
 149 #endif
 150 };
 151
 152
 153 /*
 154  * MACB Ethernet device
 155  */
 156 static struct macb_platform_data __initdata ek_macb_data = {
 157         .phy_irq_pin    = AT91_PIN_PA7,
 158         .is_rmii        = 1,
 159 };
 160
 161
 162 /*
 163  * NAND flash
 164  */
 165 static struct mtd_partition __initdata ek_nand_partition[] = {
 166         {
 167                 .name   = "Partition 1",
 168                 .offset = 0,
 169                 .size   = SZ_256K,
 170         },
 171         {
 172                 .name   = "Partition 2",
 173                 .offset = MTDPART_OFS_NXTBLK,
 174                 .size   = MTDPART_SIZ_FULL,
 175         },
 176 };
 177
 178 static struct atmel_nand_data __initdata ek_nand_data = {
 179         .ale            = 21,
 180         .cle            = 22,
 181         .det_pin        = -EINVAL,
 182         .rdy_pin        = AT91_PIN_PC13,
 183         .enable_pin     = AT91_PIN_PC14,
 184         .parts          = ek_nand_partition,
 185         .num_parts      = ARRAY_SIZE(ek_nand_partition),
 186 };
 187
 188 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 189         .ncs_read_setup         = 0,
 190         .nrd_setup              = 1,
 191         .ncs_write_setup        = 0,
 192         .nwe_setup              = 1,
 193
 194         .ncs_read_pulse         = 3,
 195         .nrd_pulse              = 3,
 196         .ncs_write_pulse        = 3,
 197         .nwe_pulse              = 3,
 198
 199         .read_cycle             = 5,
 200         .write_cycle            = 5,
 201
 202         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 203         .tdf_cycles             = 2,
 204 };
 205
 206 static void __init ek_add_device_nand(void)
 207 {
 208         ek_nand_data.bus_width_16 = board_have_nand_16bit();
 209         /* setup bus-width (8 or 16) */
 210         if (ek_nand_data.bus_width_16)
 211                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 212         else
 213                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 214
 215         /* configure chip-select 3 (NAND) */
 216         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 217
 218         at91_add_device_nand(&ek_nand_data);
 219 }
 220
 221
 222 /*
 223  * MCI (SD/MMC)
 224  */
 225 static struct at91_mmc_data __initdata ek_mmc_data = {
 226         .slot_b         = 1,
 227         .wire4          = 1,
 228         .det_pin        = -EINVAL,
 229         .wp_pin         = -EINVAL,
 230         .vcc_pin        = -EINVAL,
 231 };
 232
 233
 234 /*
 235  * LEDs
 236  */
 237 static struct gpio_led ek_leds[] = {
 238         {       /* "bottom" led, green, userled1 to be defined */
 239                 .name                   = "ds5",
 240                 .gpio                   = AT91_PIN_PA6,
 241                 .active_low             = 1,
 242                 .default_trigger        = "none",
 243         },
 244         {       /* "power" led, yellow */
 245                 .name                   = "ds1",
 246                 .gpio                   = AT91_PIN_PA9,
 247                 .default_trigger        = "heartbeat",
 248         }
 249 };
 250
 251 /*
 252  * I2C devices
 253  */
 254 static struct at24_platform_data at24c512 = {
 255         .byte_len       = SZ_512K / 8,
 256         .page_size      = 128,
 257         .flags          = AT24_FLAG_ADDR16,
 258 };
 259
 260 static struct i2c_board_info __initdata ek_i2c_devices[] = {
 261         {
 262                 I2C_BOARD_INFO("24c512", 0x50),
 263                 .platform_data = &at24c512,
 264         },
 265         /* more devices can be added using expansion connectors */
 266 };
 267
 268
 269 /*
 270  * GPIO Buttons
 271  */
 272 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 273 static struct gpio_keys_button ek_buttons[] = {
 274         {
 275                 .gpio           = AT91_PIN_PA30,
 276                 .code           = BTN_3,
 277                 .desc           = "Button 3",
 278                 .active_low     = 1,
 279                 .wakeup         = 1,
 280         },
 281         {
 282                 .gpio           = AT91_PIN_PA31,
 283                 .code           = BTN_4,
 284                 .desc           = "Button 4",
 285                 .active_low     = 1,
 286                 .wakeup         = 1,
 287         }
 288 };
 289
 290 static struct gpio_keys_platform_data ek_button_data = {
 291         .buttons        = ek_buttons,
 292         .nbuttons       = ARRAY_SIZE(ek_buttons),
 293 };
 294
 295 static struct platform_device ek_button_device = {
 296         .name           = "gpio-keys",
 297         .id             = -1,
 298         .num_resources  = 0,
 299         .dev            = {
 300                 .platform_data  = &ek_button_data,
 301         }
 302 };
 303
 304 static void __init ek_add_device_buttons(void)
 305 {
 306         at91_set_gpio_input(AT91_PIN_PA30, 1);  /* btn3 */
 307         at91_set_deglitch(AT91_PIN_PA30, 1);
 308         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* btn4 */
 309         at91_set_deglitch(AT91_PIN_PA31, 1);
 310
 311         platform_device_register(&ek_button_device);
 312 }
 313 #else
 314 static void __init ek_add_device_buttons(void) {}
 315 #endif
 316
 317
 318 static void __init ek_board_init(void)
 319 {
 320         /* Serial */
 321         at91_add_device_serial();
 322         /* USB Host */
 323         at91_add_device_usbh(&ek_usbh_data);
 324         /* USB Device */
 325         at91_add_device_udc(&ek_udc_data);
 326         /* SPI */
 327         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 328         /* NAND */
 329         ek_add_device_nand();
 330         /* Ethernet */
 331         at91_add_device_eth(&ek_macb_data);
 332         /* MMC */
 333         at91_add_device_mmc(0, &ek_mmc_data);
 334         /* I2C */
 335         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
 336         /* SSC (to AT73C213) */
 337         at73c213_set_clk(&at73c213_data);
 338         at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
 339         /* LEDs */
 340         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 341         /* Push Buttons */
 342         ek_add_device_buttons();
 343 }
 344
 345 MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK")
 346         /* Maintainer: Atmel */
 347         .timer          = &at91sam926x_timer,
 348         .map_io         = at91_map_io,
 349         .init_early     = ek_init_early,
 350         .init_irq       = at91_init_irq_default,
 351         .init_machine   = ek_board_init,
 352 MACHINE_END