arch/arm/mach-at91/board-sam9m10g45ek.c

   1 /*
   2  *  Board-specific setup code for the AT91SAM9M10G45 Evaluation Kit family
   3  *
   4  *  Covers: * AT91SAM9G45-EKES  board
   5  *          * AT91SAM9M10G45-EK board
   6  *
   7  *  Copyright (C) 2009 Atmel Corporation.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  */
  15
  16 #include <linux/types.h>
  17 #include <linux/init.h>
  18 #include <linux/mm.h>
  19 #include <linux/module.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/spi/spi.h>
  22 #include <linux/fb.h>
  23 #include <linux/gpio_keys.h>
  24 #include <linux/input.h>
  25 #include <linux/leds.h>
  26 #include <linux/clk.h>
  27
  28 #include <mach/hardware.h>
  29 #include <video/atmel_lcdc.h>
  30
  31 #include <asm/setup.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/irq.h>
  34
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37 #include <asm/mach/irq.h>
  38
  39 #include <mach/hardware.h>
  40 #include <mach/board.h>
  41 #include <mach/gpio.h>
  42 #include <mach/at91sam9_smc.h>
  43 #include <mach/at91_shdwc.h>
  44
  45 #include "sam9_smc.h"
  46 #include "generic.h"
  47
  48
  49 static void __init ek_map_io(void)
  50 {
  51         /* Initialize processor: 12.000 MHz crystal */
  52         at91sam9g45_initialize(12000000);
  53
  54         /* DGBU on ttyS0. (Rx & Tx only) */
  55         at91_register_uart(0, 0, 0);
  56
  57         /* USART0 not connected on the -EK board */
  58         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
  59         at91_register_uart(AT91SAM9G45_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
  60
  61         /* set serial console to ttyS0 (ie, DBGU) */
  62         at91_set_serial_console(0);
  63 }
  64
  65 static void __init ek_init_irq(void)
  66 {
  67         at91sam9g45_init_interrupts(NULL);
  68 }
  69
  70
  71 /*
  72  * USB HS Host port (common to OHCI & EHCI)
  73  */
  74 static struct at91_usbh_data __initdata ek_usbh_hs_data = {
  75         .ports          = 2,
  76         .vbus_pin       = {AT91_PIN_PD1, AT91_PIN_PD3},
  77 };
  78
  79
  80 /*
  81  * USB HS Device port
  82  */
  83 static struct usba_platform_data __initdata ek_usba_udc_data = {
  84         .vbus_pin       = AT91_PIN_PB19,
  85 };
  86
  87
  88 /*
  89  * SPI devices.
  90  */
  91 static struct spi_board_info ek_spi_devices[] = {
  92         {       /* DataFlash chip */
  93                 .modalias       = "mtd_dataflash",
  94                 .chip_select    = 0,
  95                 .max_speed_hz   = 15 * 1000 * 1000,
  96                 .bus_num        = 0,
  97         },
  98 };
  99
 100
 101 /*
 102  * MACB Ethernet device
 103  */
 104 static struct at91_eth_data __initdata ek_macb_data = {
 105         .phy_irq_pin    = AT91_PIN_PD5,
 106         .is_rmii        = 1,
 107 };
 108
 109
 110 /*
 111  * NAND flash
 112  */
 113 static struct mtd_partition __initdata ek_nand_partition[] = {
 114         {
 115                 .name   = "Partition 1",
 116                 .offset = 0,
 117                 .size   = SZ_64M,
 118         },
 119         {
 120                 .name   = "Partition 2",
 121                 .offset = MTDPART_OFS_NXTBLK,
 122                 .size   = MTDPART_SIZ_FULL,
 123         },
 124 };
 125
 126 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
 127 {
 128         *num_partitions = ARRAY_SIZE(ek_nand_partition);
 129         return ek_nand_partition;
 130 }
 131
 132 /* det_pin is not connected */
 133 static struct atmel_nand_data __initdata ek_nand_data = {
 134         .ale            = 21,
 135         .cle            = 22,
 136         .rdy_pin        = AT91_PIN_PC8,
 137         .enable_pin     = AT91_PIN_PC14,
 138         .partition_info = nand_partitions,
 139 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
 140         .bus_width_16   = 1,
 141 #else
 142         .bus_width_16   = 0,
 143 #endif
 144 };
 145
 146 static struct sam9_smc_config __initdata ek_nand_smc_config = {
 147         .ncs_read_setup         = 0,
 148         .nrd_setup              = 2,
 149         .ncs_write_setup        = 0,
 150         .nwe_setup              = 2,
 151
 152         .ncs_read_pulse         = 4,
 153         .nrd_pulse              = 4,
 154         .ncs_write_pulse        = 4,
 155         .nwe_pulse              = 4,
 156
 157         .read_cycle             = 7,
 158         .write_cycle            = 7,
 159
 160         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
 161         .tdf_cycles             = 3,
 162 };
 163
 164 static void __init ek_add_device_nand(void)
 165 {
 166         /* setup bus-width (8 or 16) */
 167         if (ek_nand_data.bus_width_16)
 168                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
 169         else
 170                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 171
 172         /* configure chip-select 3 (NAND) */
 173         sam9_smc_configure(3, &ek_nand_smc_config);
 174
 175         at91_add_device_nand(&ek_nand_data);
 176 }
 177
 178
 179 /*
 180  * LCD Controller
 181  */
 182 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 183 static struct fb_videomode at91_tft_vga_modes[] = {
 184         {
 185                 .name           = "LG",
 186                 .refresh        = 60,
 187                 .xres           = 480,          .yres           = 272,
 188                 .pixclock       = KHZ2PICOS(9000),
 189
 190                 .left_margin    = 1,            .right_margin   = 1,
 191                 .upper_margin   = 40,           .lower_margin   = 1,
 192                 .hsync_len      = 45,           .vsync_len      = 1,
 193
 194                 .sync           = 0,
 195                 .vmode          = FB_VMODE_NONINTERLACED,
 196         },
 197 };
 198
 199 static struct fb_monspecs at91fb_default_monspecs = {
 200         .manufacturer   = "LG",
 201         .monitor        = "LB043WQ1",
 202
 203         .modedb         = at91_tft_vga_modes,
 204         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 205         .hfmin          = 15000,
 206         .hfmax          = 17640,
 207         .vfmin          = 57,
 208         .vfmax          = 67,
 209 };
 210
 211 #define AT91SAM9G45_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
 212                                         | ATMEL_LCDC_DISTYPE_TFT \
 213                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 214
 215 /* Driver datas */
 216 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 217         .lcdcon_is_backlight            = true,
 218         .default_bpp                    = 32,
 219         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 220         .default_lcdcon2                = AT91SAM9G45_DEFAULT_LCDCON2,
 221         .default_monspecs               = &at91fb_default_monspecs,
 222         .guard_time                     = 9,
 223         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
 224 };
 225
 226 #else
 227 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
 228 #endif
 229
 230
 231 /*
 232  * GPIO Buttons
 233  */
 234 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 235 static struct gpio_keys_button ek_buttons[] = {
 236         {       /* BP1, "leftclic" */
 237                 .code           = BTN_LEFT,
 238                 .gpio           = AT91_PIN_PB6,
 239                 .active_low     = 1,
 240                 .desc           = "left_click",
 241                 .wakeup         = 1,
 242         },
 243         {       /* BP2, "rightclic" */
 244                 .code           = BTN_RIGHT,
 245                 .gpio           = AT91_PIN_PB7,
 246                 .active_low     = 1,
 247                 .desc           = "right_click",
 248                 .wakeup         = 1,
 249         },
 250                 /* BP3, "joystick" */
 251         {
 252                 .code           = KEY_LEFT,
 253                 .gpio           = AT91_PIN_PB14,
 254                 .active_low     = 1,
 255                 .desc           = "Joystick Left",
 256         },
 257         {
 258                 .code           = KEY_RIGHT,
 259                 .gpio           = AT91_PIN_PB15,
 260                 .active_low     = 1,
 261                 .desc           = "Joystick Right",
 262         },
 263         {
 264                 .code           = KEY_UP,
 265                 .gpio           = AT91_PIN_PB16,
 266                 .active_low     = 1,
 267                 .desc           = "Joystick Up",
 268         },
 269         {
 270                 .code           = KEY_DOWN,
 271                 .gpio           = AT91_PIN_PB17,
 272                 .active_low     = 1,
 273                 .desc           = "Joystick Down",
 274         },
 275         {
 276                 .code           = KEY_ENTER,
 277                 .gpio           = AT91_PIN_PB18,
 278                 .active_low     = 1,
 279                 .desc           = "Joystick Press",
 280         },
 281 };
 282
 283 static struct gpio_keys_platform_data ek_button_data = {
 284         .buttons        = ek_buttons,
 285         .nbuttons       = ARRAY_SIZE(ek_buttons),
 286 };
 287
 288 static struct platform_device ek_button_device = {
 289         .name           = "gpio-keys",
 290         .id             = -1,
 291         .num_resources  = 0,
 292         .dev            = {
 293                 .platform_data  = &ek_button_data,
 294         }
 295 };
 296
 297 static void __init ek_add_device_buttons(void)
 298 {
 299         int i;
 300
 301         for (i = 0; i < ARRAY_SIZE(ek_buttons); i++) {
 302                 at91_set_GPIO_periph(ek_buttons[i].gpio, 1);
 303                 at91_set_deglitch(ek_buttons[i].gpio, 1);
 304         }
 305
 306         platform_device_register(&ek_button_device);
 307 }
 308 #else
 309 static void __init ek_add_device_buttons(void) {}
 310 #endif
 311
 312
 313 /*
 314  * LEDs ... these could all be PWM-driven, for variable brightness
 315  */
 316 static struct gpio_led ek_leds[] = {
 317         {       /* "top" led, red, powerled */
 318                 .name                   = "d8",
 319                 .gpio                   = AT91_PIN_PD30,
 320                 .default_trigger        = "heartbeat",
 321         },
 322         {       /* "left" led, green, userled2, pwm3 */
 323                 .name                   = "d6",
 324                 .gpio                   = AT91_PIN_PD0,
 325                 .active_low             = 1,
 326                 .default_trigger        = "nand-disk",
 327         },
 328 #if !(defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE))
 329         {       /* "right" led, green, userled1, pwm1 */
 330                 .name                   = "d7",
 331                 .gpio                   = AT91_PIN_PD31,
 332                 .active_low             = 1,
 333                 .default_trigger        = "mmc0",
 334         },
 335 #endif
 336 };
 337
 338
 339 /*
 340  * PWM Leds
 341  */
 342 static struct gpio_led ek_pwm_led[] = {
 343 #if defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE)
 344         {       /* "right" led, green, userled1, pwm1 */
 345                 .name                   = "d7",
 346                 .gpio                   = 1,    /* is PWM channel number */
 347                 .active_low             = 1,
 348                 .default_trigger        = "none",
 349         },
 350 #endif
 351 };
 352
 353
 354
 355 static void __init ek_board_init(void)
 356 {
 357         /* Serial */
 358         at91_add_device_serial();
 359         /* USB HS Host */
 360         at91_add_device_usbh_ohci(&ek_usbh_hs_data);
 361         /* USB HS Device */
 362         at91_add_device_usba(&ek_usba_udc_data);
 363         /* SPI */
 364         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 365         /* Ethernet */
 366         at91_add_device_eth(&ek_macb_data);
 367         /* NAND */
 368         ek_add_device_nand();
 369         /* I2C */
 370         at91_add_device_i2c(0, NULL, 0);
 371         /* LCD Controller */
 372         at91_add_device_lcdc(&ek_lcdc_data);
 373         /* Push Buttons */
 374         ek_add_device_buttons();
 375         /* LEDs */
 376         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 377         at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
 378 }
 379
 380 MACHINE_START(AT91SAM9G45EKES, "Atmel AT91SAM9G45-EKES")
 381         /* Maintainer: Atmel */
 382         .phys_io        = AT91_BASE_SYS,
 383         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 384         .boot_params    = AT91_SDRAM_BASE + 0x100,
 385         .timer          = &at91sam926x_timer,
 386         .map_io         = ek_map_io,
 387         .init_irq       = ek_init_irq,
 388         .init_machine   = ek_board_init,
 389 MACHINE_END