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
  59 /*
  60  * USB Host port
  61  */
  62 static struct at91_usbh_data __initdata ek_usbh_data = {
  63         .ports          = 2,
  64         .vbus_pin       = {-EINVAL, -EINVAL},
  65         .overcurrent_pin= {-EINVAL, -EINVAL},
  66 };
  67
  68 /*
  69  * USB Device port
  70  */
  71 static struct at91_udc_data __initdata ek_udc_data = {
  72         .vbus_pin       = AT91_PIN_PC5,
  73         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  74 };
  75
  76
  77 /*
  78  * Audio
  79  */
  80 static struct at73c213_board_info at73c213_data = {
  81         .ssc_id         = 0,
  82         .shortname      = "AT91SAM9260-EK external DAC",
  83 };
  84
  85 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
  86 static void __init at73c213_set_clk(struct at73c213_board_info *info)
  87 {
  88         struct clk *pck0;
  89         struct clk *plla;
  90
  91         pck0 = clk_get(NULL, "pck0");
  92         plla = clk_get(NULL, "plla");
  93
  94         /* AT73C213 MCK Clock */
  95         at91_set_B_periph(AT91_PIN_PC1, 0);     /* PCK0 */
  96
  97         clk_set_parent(pck0, plla);
  98         clk_put(plla);
  99
 100         info->dac_clk = pck0;
 101 }
 102 #else
 103 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
 104 #endif
 105
 106 /*
 107  * SPI devices.
 108  */
 109 static struct spi_board_info ek_spi_devices[] = {
 110 #if !defined(CONFIG_MMC_AT91)
 111         {       /* DataFlash chip */
 112                 .modalias       = "mtd_dataflash",
 113                 .chip_select    = 1,
 114                 .max_speed_hz   = 15 * 1000 * 1000,
 115                 .bus_num        = 0,
 116         },
 117 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 118         {       /* DataFlash card */
 119                 .modalias       = "mtd_dataflash",
 120                 .chip_select    = 0,
 121                 .max_speed_hz   = 15 * 1000 * 1000,
 122                 .bus_num        = 0,
 123         },
 124 #endif
 125 #endif
 126 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 127         {       /* AT73C213 DAC */
 128                 .modalias       = "at73c213",
 129                 .chip_select    = 0,
 130                 .max_speed_hz   = 10 * 1000 * 1000,
 131                 .bus_num        = 1,
 132                 .mode           = SPI_MODE_1,
 133                 .platform_data  = &at73c213_data,
 134         },
 135 #endif
 136 };
 137
 138
 139 /*
 140  * MACB Ethernet device
 141  */
 142 static struct macb_platform_data __initdata ek_macb_data = {
 143         .phy_irq_pin    = AT91_PIN_PA7,
 144         .is_rmii        = 1,
 145 };
 146
 147
 148 /*
 149  * NAND flash
 150  */
 151 static struct mtd_partition __initdata ek_nand_partition[] = {
 152         {
 153                 .name   = "Partition 1",
 154                 .offset = 0,
 155                 .size   = SZ_256K,
 156         },
 157         {
 158                 .name   = "Partition 2",
 159                 .offset = MTDPART_OFS_NXTBLK,
 160                 .size   = MTDPART_SIZ_FULL,
 161         },
 162 };
 163
 164 static struct atmel_nand_data __initdata ek_nand_data = {
 165         .ale            = 21,
 166         .cle            = 22,
 167         .det_pin        = -EINVAL,
 168         .rdy_pin        = AT91_PIN_PC13,
 169         .enable_pin     = AT91_PIN_PC14,
 170         .ecc_mode       = NAND_ECC_SOFT,
 171         .on_flash_bbt   = 1,
 172         .parts          = ek_nand_partition,
 173         .num_parts      = ARRAY_SIZE(ek_nand_partition),
 174 };
 175
 176 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 177         .ncs_read_setup         = 0,
 178         .nrd_setup              = 1,
 179         .ncs_write_setup        = 0,
 180         .nwe_setup              = 1,
 181
 182         .ncs_read_pulse         = 3,
 183         .nrd_pulse              = 3,
 184         .ncs_write_pulse        = 3,
 185         .nwe_pulse              = 3,
 186
 187         .read_cycle             = 5,
 188         .write_cycle            = 5,
 189
 190         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 191         .tdf_cycles             = 2,
 192 };
 193
 194 static void __init ek_add_device_nand(void)
 195 {
 196         ek_nand_data.bus_width_16 = board_have_nand_16bit();
 197         /* setup bus-width (8 or 16) */
 198         if (ek_nand_data.bus_width_16)
 199                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 200         else
 201                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 202
 203         /* configure chip-select 3 (NAND) */
 204         sam9_smc_configure(0, 3, &ek_nand_smc_config);
 205
 206         at91_add_device_nand(&ek_nand_data);
 207 }
 208
 209
 210 /*
 211  * MCI (SD/MMC)
 212  */
 213 static struct at91_mmc_data __initdata ek_mmc_data = {
 214         .slot_b         = 1,
 215         .wire4          = 1,
 216         .det_pin        = -EINVAL,
 217         .wp_pin         = -EINVAL,
 218         .vcc_pin        = -EINVAL,
 219 };
 220
 221
 222 /*
 223  * LEDs
 224  */
 225 static struct gpio_led ek_leds[] = {
 226         {       /* "bottom" led, green, userled1 to be defined */
 227                 .name                   = "ds5",
 228                 .gpio                   = AT91_PIN_PA6,
 229                 .active_low             = 1,
 230                 .default_trigger        = "none",
 231         },
 232         {       /* "power" led, yellow */
 233                 .name                   = "ds1",
 234                 .gpio                   = AT91_PIN_PA9,
 235                 .default_trigger        = "heartbeat",
 236         }
 237 };
 238
 239 /*
 240  * I2C devices
 241  */
 242 static struct at24_platform_data at24c512 = {
 243         .byte_len       = SZ_512K / 8,
 244         .page_size      = 128,
 245         .flags          = AT24_FLAG_ADDR16,
 246 };
 247
 248 static struct i2c_board_info __initdata ek_i2c_devices[] = {
 249         {
 250                 I2C_BOARD_INFO("24c512", 0x50),
 251                 .platform_data = &at24c512,
 252         },
 253         /* more devices can be added using expansion connectors */
 254 };
 255
 256
 257 /*
 258  * GPIO Buttons
 259  */
 260 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 261 static struct gpio_keys_button ek_buttons[] = {
 262         {
 263                 .gpio           = AT91_PIN_PA30,
 264                 .code           = BTN_3,
 265                 .desc           = "Button 3",
 266                 .active_low     = 1,
 267                 .wakeup         = 1,
 268         },
 269         {
 270                 .gpio           = AT91_PIN_PA31,
 271                 .code           = BTN_4,
 272                 .desc           = "Button 4",
 273                 .active_low     = 1,
 274                 .wakeup         = 1,
 275         }
 276 };
 277
 278 static struct gpio_keys_platform_data ek_button_data = {
 279         .buttons        = ek_buttons,
 280         .nbuttons       = ARRAY_SIZE(ek_buttons),
 281 };
 282
 283 static struct platform_device ek_button_device = {
 284         .name           = "gpio-keys",
 285         .id             = -1,
 286         .num_resources  = 0,
 287         .dev            = {
 288                 .platform_data  = &ek_button_data,
 289         }
 290 };
 291
 292 static void __init ek_add_device_buttons(void)
 293 {
 294         at91_set_gpio_input(AT91_PIN_PA30, 1);  /* btn3 */
 295         at91_set_deglitch(AT91_PIN_PA30, 1);
 296         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* btn4 */
 297         at91_set_deglitch(AT91_PIN_PA31, 1);
 298
 299         platform_device_register(&ek_button_device);
 300 }
 301 #else
 302 static void __init ek_add_device_buttons(void) {}
 303 #endif
 304
 305
 306 static void __init ek_board_init(void)
 307 {
 308         /* Serial */
 309         /* DBGU on ttyS0. (Rx & Tx only) */
 310         at91_register_uart(0, 0, 0);
 311
 312         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
 313         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
 314                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
 315                            | ATMEL_UART_RI);
 316
 317         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
 318         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
 319         at91_add_device_serial();
 320         /* USB Host */
 321         at91_add_device_usbh(&ek_usbh_data);
 322         /* USB Device */
 323         at91_add_device_udc(&ek_udc_data);
 324         /* SPI */
 325         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 326         /* NAND */
 327         ek_add_device_nand();
 328         /* Ethernet */
 329         at91_add_device_eth(&ek_macb_data);
 330         /* MMC */
 331         at91_add_device_mmc(0, &ek_mmc_data);
 332         /* I2C */
 333         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
 334         /* SSC (to AT73C213) */
 335         at73c213_set_clk(&at73c213_data);
 336         at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
 337         /* LEDs */
 338         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 339         /* Push Buttons */
 340         ek_add_device_buttons();
 341 }
 342
 343 MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK")
 344         /* Maintainer: Atmel */
 345         .timer          = &at91sam926x_timer,
 346         .map_io         = at91_map_io,
 347         .init_early     = ek_init_early,
 348         .init_irq       = at91_init_irq_default,
 349         .init_machine   = ek_board_init,
 350 MACHINE_END