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
  66 /*
  67  * USB Host port
  68  */
  69 static struct at91_usbh_data __initdata neocore926_usbh_data = {
  70         .ports          = 2,
  71         .vbus_pin       = { AT91_PIN_PA24, AT91_PIN_PA21 },
  72         .overcurrent_pin= {-EINVAL, -EINVAL},
  73 };
  74
  75 /*
  76  * USB Device port
  77  */
  78 static struct at91_udc_data __initdata neocore926_udc_data = {
  79         .vbus_pin       = AT91_PIN_PA25,
  80         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  81 };
  82
  83
  84 /*
  85  * ADS7846 Touchscreen
  86  */
  87 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
  88 static int ads7843_pendown_state(void)
  89 {
  90         return !at91_get_gpio_value(AT91_PIN_PA15);     /* Touchscreen PENIRQ */
  91 }
  92
  93 static struct ads7846_platform_data ads_info = {
  94         .model                  = 7843,
  95         .x_min                  = 150,
  96         .x_max                  = 3830,
  97         .y_min                  = 190,
  98         .y_max                  = 3830,
  99         .vref_delay_usecs       = 100,
 100         .x_plate_ohms           = 450,
 101         .y_plate_ohms           = 250,
 102         .pressure_max           = 15000,
 103         .debounce_max           = 1,
 104         .debounce_rep           = 0,
 105         .debounce_tol           = (~0),
 106         .get_pendown_state      = ads7843_pendown_state,
 107 };
 108
 109 static void __init neocore926_add_device_ts(void)
 110 {
 111         at91_set_B_periph(AT91_PIN_PA15, 1);    /* External IRQ1, with pullup */
 112         at91_set_gpio_input(AT91_PIN_PC13, 1);  /* Touchscreen BUSY signal */
 113 }
 114 #else
 115 static void __init neocore926_add_device_ts(void) {}
 116 #endif
 117
 118 /*
 119  * SPI devices.
 120  */
 121 static struct spi_board_info neocore926_spi_devices[] = {
 122 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 123         {       /* DataFlash card */
 124                 .modalias       = "mtd_dataflash",
 125                 .chip_select    = 0,
 126                 .max_speed_hz   = 15 * 1000 * 1000,
 127                 .bus_num        = 0,
 128         },
 129 #endif
 130 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 131         {
 132                 .modalias       = "ads7846",
 133                 .chip_select    = 1,
 134                 .max_speed_hz   = 125000 * 16,
 135                 .bus_num        = 0,
 136                 .platform_data  = &ads_info,
 137                 .irq            = AT91SAM9263_ID_IRQ1,
 138         },
 139 #endif
 140 };
 141
 142
 143 /*
 144  * MCI (SD/MMC)
 145  */
 146 static struct at91_mmc_data __initdata neocore926_mmc_data = {
 147         .wire4          = 1,
 148         .det_pin        = AT91_PIN_PE18,
 149         .wp_pin         = AT91_PIN_PE19,
 150         .vcc_pin        = -EINVAL,
 151 };
 152
 153
 154 /*
 155  * MACB Ethernet device
 156  */
 157 static struct macb_platform_data __initdata neocore926_macb_data = {
 158         .phy_irq_pin    = AT91_PIN_PE31,
 159         .is_rmii        = 1,
 160 };
 161
 162
 163 /*
 164  * NAND flash
 165  */
 166 static struct mtd_partition __initdata neocore926_nand_partition[] = {
 167         {
 168                 .name   = "Linux Kernel",       /* "Partition 1", */
 169                 .offset = 0,
 170                 .size   = SZ_8M,
 171         },
 172         {
 173                 .name   = "Filesystem",         /* "Partition 2", */
 174                 .offset = MTDPART_OFS_NXTBLK,
 175                 .size   = SZ_32M,
 176         },
 177         {
 178                 .name   = "Free",               /* "Partition 3", */
 179                 .offset = MTDPART_OFS_NXTBLK,
 180                 .size   = MTDPART_SIZ_FULL,
 181         },
 182 };
 183
 184 static struct atmel_nand_data __initdata neocore926_nand_data = {
 185         .ale                    = 21,
 186         .cle                    = 22,
 187         .rdy_pin                = AT91_PIN_PB19,
 188         .rdy_pin_active_low     = 1,
 189         .enable_pin             = AT91_PIN_PD15,
 190         .ecc_mode               = NAND_ECC_SOFT,
 191         .parts                  = neocore926_nand_partition,
 192         .num_parts              = ARRAY_SIZE(neocore926_nand_partition),
 193         .det_pin                = -EINVAL,
 194 };
 195
 196 static struct sam9_smc_config __initdata neocore926_nand_smc_config = {
 197         .ncs_read_setup         = 0,
 198         .nrd_setup              = 1,
 199         .ncs_write_setup        = 0,
 200         .nwe_setup              = 1,
 201
 202         .ncs_read_pulse         = 4,
 203         .nrd_pulse              = 4,
 204         .ncs_write_pulse        = 4,
 205         .nwe_pulse              = 4,
 206
 207         .read_cycle             = 6,
 208         .write_cycle            = 6,
 209
 210         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
 211         .tdf_cycles             = 2,
 212 };
 213
 214 static void __init neocore926_add_device_nand(void)
 215 {
 216         /* configure chip-select 3 (NAND) */
 217         sam9_smc_configure(0, 3, &neocore926_nand_smc_config);
 218
 219         at91_add_device_nand(&neocore926_nand_data);
 220 }
 221
 222
 223 /*
 224  * LCD Controller
 225  */
 226 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 227 static struct fb_videomode at91_tft_vga_modes[] = {
 228         {
 229                 .name           = "TX09D50VM1CCA @ 60",
 230                 .refresh        = 60,
 231                 .xres           = 240,          .yres           = 320,
 232                 .pixclock       = KHZ2PICOS(5000),
 233
 234                 .left_margin    = 1,            .right_margin   = 33,
 235                 .upper_margin   = 1,            .lower_margin   = 0,
 236                 .hsync_len      = 5,            .vsync_len      = 1,
 237
 238                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 239                 .vmode          = FB_VMODE_NONINTERLACED,
 240         },
 241 };
 242
 243 static struct fb_monspecs at91fb_default_monspecs = {
 244         .manufacturer   = "HIT",
 245         .monitor        = "TX09D70VM1CCA",
 246
 247         .modedb         = at91_tft_vga_modes,
 248         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
 249         .hfmin          = 15000,
 250         .hfmax          = 64000,
 251         .vfmin          = 50,
 252         .vfmax          = 150,
 253 };
 254
 255 #define AT91SAM9263_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
 256                                         | ATMEL_LCDC_DISTYPE_TFT \
 257                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 258
 259 static void at91_lcdc_power_control(int on)
 260 {
 261         at91_set_gpio_value(AT91_PIN_PA30, on);
 262 }
 263
 264 /* Driver datas */
 265 static struct atmel_lcdfb_info __initdata neocore926_lcdc_data = {
 266         .lcdcon_is_backlight            = true,
 267         .default_bpp                    = 16,
 268         .default_dmacon                 = ATMEL_LCDC_DMAEN,
 269         .default_lcdcon2                = AT91SAM9263_DEFAULT_LCDCON2,
 270         .default_monspecs               = &at91fb_default_monspecs,
 271         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
 272         .guard_time                     = 1,
 273         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB555,
 274 };
 275
 276 #else
 277 static struct atmel_lcdfb_info __initdata neocore926_lcdc_data;
 278 #endif
 279
 280
 281 /*
 282  * GPIO Buttons
 283  */
 284 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 285 static struct gpio_keys_button neocore926_buttons[] = {
 286         {       /* BP1, "leftclic" */
 287                 .code           = BTN_LEFT,
 288                 .gpio           = AT91_PIN_PC5,
 289                 .active_low     = 1,
 290                 .desc           = "left_click",
 291                 .wakeup         = 1,
 292         },
 293         {       /* BP2, "rightclic" */
 294                 .code           = BTN_RIGHT,
 295                 .gpio           = AT91_PIN_PC4,
 296                 .active_low     = 1,
 297                 .desc           = "right_click",
 298                 .wakeup         = 1,
 299         },
 300 };
 301
 302 static struct gpio_keys_platform_data neocore926_button_data = {
 303         .buttons        = neocore926_buttons,
 304         .nbuttons       = ARRAY_SIZE(neocore926_buttons),
 305 };
 306
 307 static struct platform_device neocore926_button_device = {
 308         .name           = "gpio-keys",
 309         .id             = -1,
 310         .num_resources  = 0,
 311         .dev            = {
 312                 .platform_data  = &neocore926_button_data,
 313         }
 314 };
 315
 316 static void __init neocore926_add_device_buttons(void)
 317 {
 318         at91_set_GPIO_periph(AT91_PIN_PC5, 0);  /* left button */
 319         at91_set_deglitch(AT91_PIN_PC5, 1);
 320         at91_set_GPIO_periph(AT91_PIN_PC4, 0);  /* right button */
 321         at91_set_deglitch(AT91_PIN_PC4, 1);
 322
 323         platform_device_register(&neocore926_button_device);
 324 }
 325 #else
 326 static void __init neocore926_add_device_buttons(void) {}
 327 #endif
 328
 329
 330 /*
 331  * AC97
 332  */
 333 static struct ac97c_platform_data neocore926_ac97_data = {
 334         .reset_pin      = AT91_PIN_PA13,
 335 };
 336
 337
 338 static void __init neocore926_board_init(void)
 339 {
 340         /* Serial */
 341         at91_add_device_serial();
 342
 343         /* USB Host */
 344         at91_add_device_usbh(&neocore926_usbh_data);
 345
 346         /* USB Device */
 347         at91_add_device_udc(&neocore926_udc_data);
 348
 349         /* SPI */
 350         at91_set_gpio_output(AT91_PIN_PE20, 1);         /* select spi0 clock */
 351         at91_add_device_spi(neocore926_spi_devices, ARRAY_SIZE(neocore926_spi_devices));
 352
 353         /* Touchscreen */
 354         neocore926_add_device_ts();
 355
 356         /* MMC */
 357         at91_add_device_mmc(1, &neocore926_mmc_data);
 358
 359         /* Ethernet */
 360         at91_add_device_eth(&neocore926_macb_data);
 361
 362         /* NAND */
 363         neocore926_add_device_nand();
 364
 365         /* I2C */
 366         at91_add_device_i2c(NULL, 0);
 367
 368         /* LCD Controller */
 369         at91_add_device_lcdc(&neocore926_lcdc_data);
 370
 371         /* Push Buttons */
 372         neocore926_add_device_buttons();
 373
 374         /* AC97 */
 375         at91_add_device_ac97(&neocore926_ac97_data);
 376 }
 377
 378 MACHINE_START(NEOCORE926, "ADENEO NEOCORE 926")
 379         /* Maintainer: ADENEO */
 380         .timer          = &at91sam926x_timer,
 381         .map_io         = at91_map_io,
 382         .init_early     = neocore926_init_early,
 383         .init_irq       = at91_init_irq_default,
 384         .init_machine   = neocore926_board_init,
 385 MACHINE_END