arch/arm/mach-at91/board-neocore926.c

   1 /*
   2  * linux/arch/arm/mach-at91/board-neocore926.c
   3  *
   4  *  Copyright (C) 2005 SAN People
   5  *  Copyright (C) 2007 Atmel Corporation
   6  *  Copyright (C) 2008 ADENEO.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include <linux/types.h>
  24 #include <linux/gpio.h>
  25 #include <linux/init.h>
  26 #include <linux/mm.h>
  27 #include <linux/module.h>
  28 #include <linux/platform_device.h>
  29 #include <linux/spi/spi.h>
  30 #include <linux/spi/ads7846.h>
  31 #include <linux/fb.h>
  32 #include <linux/gpio_keys.h>
  33 #include <linux/input.h>
  34
  35 #include <video/atmel_lcdc.h>
  36
  37 #include <asm/setup.h>
  38 #include <asm/mach-types.h>
  39 #include <asm/irq.h>
  40 #include <asm/sizes.h>
  41
  42 #include <asm/mach/arch.h>
  43 #include <asm/mach/map.h>
  44 #include <asm/mach/irq.h>
  45
  46 #include <mach/hardware.h>
  47 #include <mach/board.h>
  48 #include <mach/at91sam9_smc.h>
  49
  50 #include "sam9_smc.h"
  51 #include "generic.h"
  52
  53
  54 static void __init neocore926_init_early(void)
  55 {
  56         /* Initialize processor: 20 MHz crystal */
  57         at91_initialize(20000000);
  58
  59         /* DBGU on ttyS0. (Rx & Tx only) */
  60         at91_register_uart(0, 0, 0);
  61
  62         /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
  63         at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
  64
  65         /* set serial console to ttyS0 (ie, DBGU) */
  66         at91_set_serial_console(0);
  67 }
  68
  69 /*
  70  * USB Host port
  71  */
  72 static struct at91_usbh_data __initdata neocore926_usbh_data = {
  73         .ports          = 2,
  74         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  75         .overcurrent_pin= {-EINVAL, -EINVAL},
  76 };
  77
  78 /*
  79  * USB Device port
  80  */
  81 static struct at91_udc_data __initdata neocore926_udc_data = {
  82         .vbus_pin       = AT91_PIN_PA25,
  83         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  84 };
  85
  86
  87 /*
  88  * ADS7846 Touchscreen
  89  */
  90 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  91 static int ads7843_pendown_state(void)
  92 {
  93         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
  94 }
  95
  96 static struct ads7846_platform_data ads_info = {
  97         .model                  = 7843,
  98         .x_min                  = 150,
  99         .x_max                  = 3830,
 100         .y_min                  = 190,
 101         .y_max                  = 3830,
 102         .vref_delay_usecs       = 100,
 103         .x_plate_ohms           = 450,
 104         .y_plate_ohms           = 250,
 105         .pressure_max           = 15000,
 106         .debounce_max           = 1,
 107         .debounce_rep           = 0,
 108         .debounce_tol           = (~0),
 109         .get_pendown_state      = ads7843_pendown_state,
 110 };
 111
 112 static void __init neocore926_add_device_ts(void)
 113 {
 114         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 115         at91_set_gpio_input(AT91_PIN_PC13, 1);  /* Touchscreen BUSY signal */
 116 }
 117 #else
 118 static void __init neocore926_add_device_ts(void) {}
 119 #endif
 120
 121 /*
 122  * SPI devices.
 123  */
 124 static struct spi_board_info neocore926_spi_devices[] = {
 125 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 126         {       /* DataFlash card */
 127                 .modalias       = "mtd_dataflash",
 128                 .chip_select    = 0,
 129                 .max_speed_hz   = 15 * 1000 * 1000,
 130                 .bus_num        = 0,
 131         },
 132 #endif
 133 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 134         {
 135                 .modalias       = "ads7846",
 136                 .chip_select    = 1,
 137                 .max_speed_hz   = 125000 * 16,
 138                 .bus_num        = 0,
 139                 .platform_data  = &ads_info,
 140                 .irq            = AT91SAM9263_ID_IRQ1,
 141         },
 142 #endif
 143 };
 144
 145
 146 /*
 147  * MCI (SD/MMC)
 148  */
 149 static struct at91_mmc_data __initdata neocore926_mmc_data = {
 150         .wire4          = 1,
 151         .det_pin        = AT91_PIN_PE18,
 152         .wp_pin         = AT91_PIN_PE19,
 153         .vcc_pin        = -EINVAL,
 154 };
 155
 156
 157 /*
 158  * MACB Ethernet device
 159  */
 160 static struct macb_platform_data __initdata neocore926_macb_data = {
 161         .phy_irq_pin    = AT91_PIN_PE31,
 162         .is_rmii        = 1,
 163 };
 164
 165
 166 /*
 167  * NAND flash
 168  */
 169 static struct mtd_partition __initdata neocore926_nand_partition[] = {
 170         {
 171                 .name   = "Linux Kernel",       /* "Partition 1", */
 172                 .offset = 0,
 173                 .size   = SZ_8M,
 174         },
 175         {
 176                 .name   = "Filesystem",         /* "Partition 2", */
 177                 .offset = MTDPART_OFS_NXTBLK,
 178                 .size   = SZ_32M,
 179         },
 180         {
 181                 .name   = "Free",               /* "Partition 3", */
 182                 .offset = MTDPART_OFS_NXTBLK,
 183                 .size   = MTDPART_SIZ_FULL,
 184         },
 185 };
 186
 187 static struct atmel_nand_data __initdata neocore926_nand_data = {
 188         .ale                    = 21,
 189         .cle                    = 22,
 190         .rdy_pin                = AT91_PIN_PB19,
 191         .rdy_pin_active_low     = 1,
 192         .enable_pin             = AT91_PIN_PD15,
 193         .ecc_mode               = NAND_ECC_SOFT,
 194         .parts                  = neocore926_nand_partition,
 195         .num_parts              = ARRAY_SIZE(neocore926_nand_partition),
 196         .det_pin                = -EINVAL,
 197 };
 198
 199 static struct sam9_smc_config __initdata neocore926_nand_smc_config = {
 200         .ncs_read_setup         = 0,
 201         .nrd_setup              = 1,
 202         .ncs_write_setup        = 0,
 203         .nwe_setup              = 1,
 204
 205         .ncs_read_pulse         = 4,
 206         .nrd_pulse              = 4,
 207         .ncs_write_pulse        = 4,
 208         .nwe_pulse              = 4,
 209
 210         .read_cycle             = 6,
 211         .write_cycle            = 6,
 212
 213         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 214         .tdf_cycles             = 2,
 215 };
 216
 217 static void __init neocore926_add_device_nand(void)
 218 {
 219         /* configure chip-select 3 (NAND) */
 220         sam9_smc_configure(0, 3, &neocore926_nand_smc_config);
 221
 222         at91_add_device_nand(&neocore926_nand_data);
 223 }
 224
 225
 226 /*
 227  * LCD Controller
 228  */
 229 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 230 static struct fb_videomode at91_tft_vga_modes[] = {
 231         {
 232                 .name           = "TX09D50VM1CCA @ 60",
 233                 .refresh        = 60,
 234                 .xres           = 240,          .yres           = 320,
 235                 .pixclock       = KHZ2PICOS(5000),
 236
 237                 .left_margin    = 1,            .right_margin   = 33,
 238                 .upper_margin   = 1,            .lower_margin   = 0,
 239                 .hsync_len      = 5,            .vsync_len      = 1,
 240
 241                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 242                 .vmode          = FB_VMODE_NONINTERLACED,
 243         },
 244 };
 245
 246 static struct fb_monspecs at91fb_default_monspecs = {
 247         .manufacturer   = "HIT",
 248         .monitor        = "TX09D70VM1CCA",
 249
 250         .modedb         = at91_tft_vga_modes,
 251         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 252         .hfmin          = 15000,
 253         .hfmax          = 64000,
 254         .vfmin          = 50,
 255         .vfmax          = 150,
 256 };
 257
 258 #define AT91SAM9263_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 259                                         | ATMEL_LCDC_DISTYPE_TFT \
 260                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 261
 262 static void at91_lcdc_power_control(int on)
 263 {
 264         at91_set_gpio_value(AT91_PIN_PA30, on);
 265 }
 266
 267 /* Driver datas */
 268 static struct atmel_lcdfb_info __initdata neocore926_lcdc_data = {
 269         .lcdcon_is_backlight            = true,
 270         .default_bpp                    = 16,
 271         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 272         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 273         .default_monspecs               = &at91fb_default_monspecs,
 274         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 275         .guard_time                     = 1,
 276         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB555,
 277 };
 278
 279 #else
 280 static struct atmel_lcdfb_info __initdata neocore926_lcdc_data;
 281 #endif
 282
 283
 284 /*
 285  * GPIO Buttons
 286  */
 287 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 288 static struct gpio_keys_button neocore926_buttons[] = {
 289         {       /* BP1, "leftclic" */
 290                 .code           = BTN_LEFT,
 291                 .gpio           = AT91_PIN_PC5,
 292                 .active_low     = 1,
 293                 .desc           = "left_click",
 294                 .wakeup         = 1,
 295         },
 296         {       /* BP2, "rightclic" */
 297                 .code           = BTN_RIGHT,
 298                 .gpio           = AT91_PIN_PC4,
 299                 .active_low     = 1,
 300                 .desc           = "right_click",
 301                 .wakeup         = 1,
 302         },
 303 };
 304
 305 static struct gpio_keys_platform_data neocore926_button_data = {
 306         .buttons        = neocore926_buttons,
 307         .nbuttons       = ARRAY_SIZE(neocore926_buttons),
 308 };
 309
 310 static struct platform_device neocore926_button_device = {
 311         .name           = "gpio-keys",
 312         .id             = -1,
 313         .num_resources  = 0,
 314         .dev            = {
 315                 .platform_data  = &neocore926_button_data,
 316         }
 317 };
 318
 319 static void __init neocore926_add_device_buttons(void)
 320 {
 321         at91_set_GPIO_periph(AT91_PIN_PC5, 0);  /* left button */
 322         at91_set_deglitch(AT91_PIN_PC5, 1);
 323         at91_set_GPIO_periph(AT91_PIN_PC4, 0);  /* right button */
 324         at91_set_deglitch(AT91_PIN_PC4, 1);
 325
 326         platform_device_register(&neocore926_button_device);
 327 }
 328 #else
 329 static void __init neocore926_add_device_buttons(void) {}
 330 #endif
 331
 332
 333 /*
 334  * AC97
 335  */
 336 static struct ac97c_platform_data neocore926_ac97_data = {
 337         .reset_pin      = AT91_PIN_PA13,
 338 };
 339
 340
 341 static void __init neocore926_board_init(void)
 342 {
 343         /* Serial */
 344         at91_add_device_serial();
 345
 346         /* USB Host */
 347         at91_add_device_usbh(&neocore926_usbh_data);
 348
 349         /* USB Device */
 350         at91_add_device_udc(&neocore926_udc_data);
 351
 352         /* SPI */
 353         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 354         at91_add_device_spi(neocore926_spi_devices, ARRAY_SIZE(neocore926_spi_devices));
 355
 356         /* Touchscreen */
 357         neocore926_add_device_ts();
 358
 359         /* MMC */
 360         at91_add_device_mmc(1, &neocore926_mmc_data);
 361
 362         /* Ethernet */
 363         at91_add_device_eth(&neocore926_macb_data);
 364
 365         /* NAND */
 366         neocore926_add_device_nand();
 367
 368         /* I2C */
 369         at91_add_device_i2c(NULL, 0);
 370
 371         /* LCD Controller */
 372         at91_add_device_lcdc(&neocore926_lcdc_data);
 373
 374         /* Push Buttons */
 375         neocore926_add_device_buttons();
 376
 377         /* AC97 */
 378         at91_add_device_ac97(&neocore926_ac97_data);
 379 }
 380
 381 MACHINE_START(NEOCORE926, "ADENEO NEOCORE 926")
 382         /* Maintainer: ADENEO */
 383         .timer          = &at91sam926x_timer,
 384         .map_io         = at91_map_io,
 385         .init_early     = neocore926_init_early,
 386         .init_irq       = at91_init_irq_default,
 387         .init_machine   = neocore926_board_init,
 388 MACHINE_END